Forced Induction - 71 Nova 5.3 PT7675 build (now PT88) 9.98 at 139.

A couple people have pm'd and asked for a build thread on here so here goes. Ive used this forum a ton and have never posted up a build thread so I do need to give back a little bit, lol.

The car is a 71 Nova. Ive restored it from the ground up over the last few years and made it into a "pro-touring" type car but with a very understated personality. Clean and simple is the goal but with mega horsepower and better handling than most of the stuff on the road.

The old setup was a forged 6.0 with a MP GT45. I was a nice street setup but I sold it to another guy on here and its going into a really nice GN. Now I cant live without a turbo car so this time I picked up a 2005 L33 5.3.

Here is the build list.

2005 L33 5.3 alum block, 799 heads, 137k on it. $550
ARP head studs
224/228 565 114 cam
LS1 intake
95lb Delphi's
Versafueler
Precision 7675CEA (billet wheel) .96Ar
Turbosmart 45
Tial knockoff 50mm

And here is the car:
http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/047-1.jpg

The previous setup:
http://i1025.photobucket.com/albums/y314/LS1NOVA/Nate_Shaw_71_Nova_Day_2_017.jpg

It had two LS4 manifolds flipped. The goal was to get the other manifold down and forward to clean up the setup a little bit. I took a 03-05 Trailblazer manifold (slightly smaller tube than a reg truck man) and had it angle milled to clear the steering box and then welded a v band on. It worked out well.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Novaandcora009.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Novaandcora008.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Corashednova014-1.jpg

I had it on the engine dyno and it made 824hp at 16psi. We ran out of time and I didnt want to spend any more money so called it quits. This was on a stock shortblock. I had planned to run the stock shortblock up to 20-22 psi and shoot for 750rw but my wife convinced me to just do it right and build it a little. More to come soon!

More pics
http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Corashednova007.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Corashednova010.jpg

Ill throw some other random shots of the car in here too.

http://i1025.photobucket.com/albums/y314/LS1NOVA/Nate_Shaw_71_Nova_546.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/Nate_Shaw_71_Nova_Day_2_081.jpg

I like how you merged the two pipes before the turbo and carefully integrated the wastegate too. Looks like a nice flowing design. Stout power on the dyno for sure for a stock engine. Looks good.

Did u make that power on pump gas and stock fuel rails? What pump and regulator do you use?

I am sure the front springs will like the reduced weight and the car will handle a little better too.

Did u make that power on pump gas and stock fuel rails? What pump and regulator do you use?

E85 and stock rails. Twin external walbros each fed by a -8 from the cell sump. Another pump will be added soon. Regulator is an Aeromotive 13101, feed in one side out the other and the return before the rails.

I am sure the front springs will like the reduced weight and the car will handle a little better too.

Im pretty pumped about taking 100lbs off the front of the car with this build. The SC&C front suspension kit kicks ass and the car handles really well, even with 235's. I'll prob switch to 9" wide front wheels and 275's next year.

YAY!!!
Been waiting for this thread to start....

The dyno numbers look AWESOME!

Very nice job, clean set-up and great looking car (very partial to novas myself)

Nice, very clean setup!

E85 and stock rails. Twin external walbros each fed by a -8 from the cell sump. Another pump will be added soon. Regulator is an Aeromotive 13101, feed in one side out the other and the return before the rails.



Im pretty pumped about taking 100lbs off the front of the car with this build. The SC&C front suspension kit kicks ass and the car handles really well, even with 235's. I'll prob switch to 9" wide front wheels and 275's next year.

Cool, thanks! Which exhaust housing are you running? I also picked up a PT7675 cast compressor wheel, I want to run e85 and a magnafuel 4303... I will be using a 4.8 for now with plans of a 370 or 408 for the future... I was gonna purchase a Comp Cams 224/230 .617/.610 that they call out for street remote mount turbo to put in the 4.8, but I will build it front mount very similar to yours. I am also gonna buy the Bosch 103 lb/hr injectors. If I can put off buying rails for now that would be great...

Nevermind I seen .96 a/r, I got mine just off fresh rebuild, it came with a 1.12. I think I know where a 1.0 is...

Looking good! Out of curiosity, why not go with v-bands on both manifolds? Hot side is great and I love the DEI wrap.

Nevermind I seen .96 a/r, I got mine just off fresh rebuild, it came with a 1.12. I think I know where a 1.0 is...

a pt7675 with a 1.12? you sure

a pt7675 with a 1.12? you sure


Yes, it was used on a diesel before. It is a GT4202R with a cast 76mm compressor and a Precision 1.12 housing, not a Garrett 1.15, and has a precision "race" cover. A guy launched a piston on a cummins and sent pieces through it, then sent it in to have it rebuilt, I picked it up right when he got it back. I know another guy who has a Garrett 1.01 housing he might sell.

Looking good! Out of curiosity, why not go with v-bands on both manifolds? Hot side is great and I love the DEI wrap.

Because I had the three bolt flange and it works well. I really like the DEI stuff too.

a pt7675 with a 1.12? you sure

Yes, it was used on a diesel before. It is a GT4202R with a cast 76mm compressor and a Precision 1.12 housing, not a Garrett 1.15, and has a precision "race" cover. A guy launched a piston on a cummins and sent pieces through it, then sent it in to have it rebuilt, I picked it up right when he got it back. I know another guy who has a Garrett 1.01 housing he might sell.

It is a pt7675 and a gt4202r at the same time?

Most Precision turbos are somesort of hybird/copy of a Garrett. Many of the parts are interchangable, so if it has been rebuilt it's very possible that someone used Garrett and Precision parts to make up a custom turbo.

It is a pt7675 and a gt4202r at the same time?

SORRY, didn't know there was a difference... It is a GT4202R with a 76mm inducer on the compressor and a 75mm exducer on the exhaust. I also have a GT45R with a 83mm Precision billet compressor wheel and Precision cover, wheel clipped to 3.0" Protrusion and a 80mm turbine exducer with a 1.28 Garrett housing. I have a S400 75mm compressor and S400 80mm compressor both with 96/88mm turbines, I have the original 1.32 a/r t6, a 1.10 t6 machined to fit, and a 1.10 t4 machined to fit the large turbine also. All of these we have tried and ran on a diesel pulling truck, or on diesel street trucks... I also have a PT98 with a f-trim turbine and a 1.0 a/r housing we attempted to run twice, but couldn't keep it "lit" out of the hole.

The rules have always been a 3" compressor inducer limit, so I have quite a few close variations close to that I can use with little or no cost... I want to be capable of 1000 fwhp on E85 for now, with hopes of 1000+ rwhp a year or two down the road with a forged 408 or something similar... I realize the 88mm exhaust exducer is rather large for a 4.8 or 5.3, but I hoped to use the 80mm S400 on a forged engine or maybe even have it upgraded to a 88mm compressor wheel when the time comes.

No need to apologize, just wondering if there was something I was missing, I have a PT7675 and I was pretty sure a 4202R is a little fancier(ball bearing), but super close in wheel sizes. Standard 75mm S400 with T4 83mm turbine(75mm minor dimension as PT and GT) is almost identical to those two in both wheel sizes as well. All three very comparable it seems like.

SORRY, didn't know there was a difference... It is a GT4202R with a 76mm inducer on the compressor and a 75mm exducer on the exhaust.

Congrats on the new numbers! Im surprised stock rails will get you that far on E85. Did you get this new setup in your car yet? I finally was able to get the 76gts into my car. Im having it retuned on the 18th.

It hasnt been put in the car yet as I have to rip the engine apart and install some goodies. Also have to go through the trans.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/53pistonsandrods018.jpg

What happened to "stock bottom end"? :lol:

Question on the manifolds? What did you use for the original setup and were both flipped up or driver up and passenger down? I can see from the pics both are flipped down but are those the new setup or old? Sorry for the confusing question. Can truck manifolds be used if you weld vbands on? I have escalade truck manifolds and would love to flip them down if I could. Thanks for your thread and input!!!

haha well that stock short block didnt last very long. I guess its smart of you to upgrade now before chunks of piston make contact with you turbine..lol. I was really curious to see what you were going to get out of that stock block. But oh well on to better things.

not a lot of room for truck manifold on a nova. Thats y i went the header route on mine and glad i did. the truck manifolds hit everything on my nova, controll arms steering box and so on. there is a lot of room in a nova but not in the right spots if u know what i mean. looks good tho. like the manifolds going down intead of up, alot cleaner look

lookin good, I have to check this car out this year, I cant believe I've missed it at nats.

have any contact info for cjtunes? thinking of giving him a call for a tune.

What happened to "stock bottom end"? :lol:

Yeah, I know, I know. I went out the window. The wife asked: I heard this is kind of a throwaway engine. Is that right. I said: Would you rather me make it reliable? She said yes and I know well enough to take advantage of any scenario like that.

Question on the manifolds? What did you use for the original setup and were both flipped up or driver up and passenger down? I can see from the pics both are flipped down but are those the new setup or old? Sorry for the confusing question. Can truck manifolds be used if you weld vbands on? I have escalade truck manifolds and would love to flip them down if I could. Thanks for your thread and input!!!

The original build were both LS4 manifolds. One down and one up. Looked kind of funky but worked good. The new setup I was determined to get a truck manifold to fit and was the first to do it. You will have to angle mill the head flange to get it around the steering box. It will still be tight and I would advise solid engine mounts.

not a lot of room for truck manifold on a nova. Thats y i went the header route on mine and glad i did. the truck manifolds hit everything on my nova, controll arms steering box and so on. there is a lot of room in a nova but not in the right spots if u know what i mean. looks good tho. like the manifolds going down intead of up, alot cleaner look

I like the look a lot better also. Thanks.

lookin good, I have to check this car out this year, I cant believe I've missed it at nats.

have any contact info for cjtunes? thinking of giving him a call for a tune.

Call him at the shop. 651-224-0267. Ask for Carl.
http://cjtunes.com/ Tell him I sent ya and see you at the Nats.

Awesome car and nice set up you got going there I love that merge...

I understand on the angle milling of the flange. I agree it looks better pointed down but it really looked great in your initial setup. Awesome. What solid motor mounts and plates did you use?

Made my own from plate steel as the engine is further back and lower than normal. Its far enough back to fit an unmodified F body oil pan with stock steering linkage.

What's your name by the way? Ok on your own plates. I can do that. Did you give dimensions of those plates on another thread somewhere? I thought I saw them. Also I am new to building a nova. Isn't there a rubber mount that mounts to the clamshell piece? You said use a solid one. What one did you use or were you just suggesting? Sorry for another message.

Lance

Looks great, I have a couple of q's, I'll give you a call!!!!

Still going to run the Treadstone?

Still going to run the Treadstone?

Yes, I sold the old one with the 6.0 setup and bought another just like it. Even at $400, I think they are a quality piece.

I personally thought the LS4 manifold flipped up was kind of cool looking. Seeing that saved me a lot of headache on what I want to do. I've seen every kind of manifold flipped up on here and just didn't get that warm, fuzzy feeling. I can leave the alternator in the original place instead of the relocating hassle. Are you still using the LS1 intake? If so, what are you blocking the EGR port with? How much do you think you might be leaving on the table vs an LS6 intake? Not worth it? Thanks for posting the build. Very clean Nova!

Did you clearance the firewall,or floor, to get that 4l80 in there?

Can you post the dyno graph/page? I'm curious how that turbo works throughout the rpm range.

Rebuilt the 80E and added a Trango HD-2 kit and Yank PY3600 converter

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/4L80E.jpg

Assembled the shortblock.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/53shortblock.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/DynodayrandomCora021.jpg

Just a few wiring bits left and fire her up.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Nova001.jpg

Also did a little suspension work to get the ride height Im after. Swapped in a set of spindles and fabbed up a homebuilt "Ridetech Tru-turn". Basically swaps the steering arms for a set of backwards Chevelle arms and then raised the center link tie rod locations to correct the bumpsteer. I'll be running it with the 17x8 and 235's on it this year but now it has the room for 9 or 10" wheels and 275's on the front.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/DynodayrandomCora019.jpg

Did you clearance the firewall,or floor, to get that 4l80 in there?

The firewall has been reworked a bunch for clearance. Floor is stock though.

Thanks for getting back to me. Everything looks good. I hope the home made tru-turn works out for you. When do you think the car will be running?

Thanks for getting back to me. Everything looks good. I hope the home made tru-turn works out for you. When do you think the car will be running?

Its running, just need to get some street time and its been raining. i

Nice, it will be cool to see how it compares to your old setup!

One of the nicest Nova's I've seen! Bad ass setup.

home built is where its at!

when's it hit the rollers again? - let me know.

did you get to cruise Sunday at all?

when's it hit the rollers again? - let me know.

I will let you know.

did you get to cruise Sunday at all?

Its only been up and down the road a couple times. I have to pull the transmission as I believe the overdrive roller clutch is messed up and it slips in reverse and od.

wow that sounds incredibly dangerous.. well hope you figure that shit out. I have been driving my camaro around a little bit. My intake temps are off the charts.. I need rework some things.

haha nevermind that last post i miss read that... Im driving..

What size pipe did you use? where did you get the flex joint??

did you look at the F body manifolds, bummer is when I moved into my new house I threw away a set of truck manifolds, damn!!!! it man!

What size pipe did you use? where did you get the flex joint??

did you look at the F body manifolds, bummer is when I moved into my new house I threw away a set of truck manifolds, damn!!!! it man!

The flex is recycled from a GM car V8 crossover pipe. The F body manifolds are very similiar to truck manifolds. The pipe is 2 1/4 OD.

Cool thanks, have to stop buy a JY for the flex, remember the car?

a guy on lat G is selling off his turbo parts, might try to buy his headers,

a guy has a 44mm turbonetics waste gate, would this be good for my combo, I'm basically trying to mirror yours, or do I need bigger,

The car finally all came together last week and the is running well so we headed down to Ia for the weekend. Dropped the little munchkin off at Gma and Gpa's and went to Cedar Falls Midnight Mania. There were just the right amount of cars. A little of everything. Its really a great deal at $20.

The car was having an issue cutting out after a long pull on 20psi so I backed it down a little to 17psi on the street. At the track it ended up around 19psi with good traction. I also installed a set of caltracs to replace my sweet slapper bars and swapped to Hoosier DOT 335/35/17 drag radials. The first run I put a 10psi spring in the wastegate to establish a baseline and make sure the car was smooth. Timers were not set up right so no timeslip on that. Did a few runs with traction issues and lifted a couple times. 11.10, 10.8, etc. Dropped the tire pressure down to 18 and let the car cool a bit and did the 10.39. Ended up being the best pass of the night. Car slowed a little later to 10.5's around midnight. Track wasnt feeling as good as the dew rolled in and I also took the cutoff cap off which didnt help I guess.

I entered the competition at the end of the night for the top 4 fastest domestics. Me, a red 421cu na stripped S-10, a new CTS-V coupe with some light mods in the low 11's, and a black Mustang with unknown mods running the 8th mile all night. I lined up with the Mustang first, he killed me off the start but ended up taking him up top. Next, ran the S-10 but he got me as it was dead consistent. It was supposed to be a street car event with mufflers and street tires but they let him take the title with open headers. Oh well.

I'll probably go back to the track later this year with more boost and maybe try a few simple things like unhooking the sway bar and trying to build some boost off the line to eventually have my 9 second street car that can also turn corners. Hopefully some others can make it down too.

Heres one video. The Honda in the right lane was my wifes favorite car of the night lol.

http://www.youtube.com/watch?v=Z7PVHyb6O4E&feature=player_embedded

Congrats Nate! That sounds pretty damn sick compared to that honda lol. Really makes me want to put a s480 or 75 on the T/A...

Very nice build. I too am on a similar build with a stock short block 5.3L and PT7675. How much does your car weigh and what rear end ratio are you running?

nice, moves pretty good, you see my PM,

Cool thanks, have to stop buy a JY for the flex, remember the car?

a guy on lat G is selling off his turbo parts, might try to buy his headers,

a guy has a 44mm turbonetics waste gate, would this be good for my combo, I'm basically trying to mirror yours, or do I need bigger,

The flex is from a GXP with a 5.3. Unlikely that you will find one.

44mm would work but it really depends on how LOW of boost you want to run. If your going to try 5-6 lbs, go bigger. Mine controls good at 10lbs but prob no need to go lower for me.

GXP what the hell is that, prolly right on finding one, not getting the headers, damn,

OK thanks, what to go bigger, 10-12, I'm guessing, thanks for the tech support!!

i feel like your not gonna have to try real hard to get that 9 second pass lol. anyway gongrats man! love the car

44mm would work but it really depends on how LOW of boost you want to run. If your going to try 5-6 lbs, go bigger. Mine controls good at 10lbs but prob no need to go lower for me.My precision 46 controls down to 3lbs no problems with my 5.3 and precision 76mm.

Sorry if I missed it, but is this still a 327 but forged? Thanks

Sorry if I missed it, but is this still a 327 but forged? Thanks

Yup, stock bore and stroke with forged pistons and rods.

Yup, stock bore and stroke with forged pistons and rods.

Which ones did it need a rebalance?

Wiseco pistons and Eagle rods. Yes, rebalance.

Good to know on the low boost Skinnies.

Nate it was fun to talk to you at the midnights at Cedar Falls raceway last Saturday. The car is beautiful and very inspiring (and fast)!

Dave

love this car!!! i have to ask what all did you do to get that stance of this car? I love it

Nate it was fun to talk to you at the midnights at Cedar Falls raceway last Saturday. The car is beautiful and very inspiring (and fast)!

Dave

It was nice to talk to you as well.

love this car!!! i have to ask what all did you do to get that stance of this car? I love it

The rear is caltrac split mono's with a 3" drop, relocated shocks on a crossmember.

Front is stock sub, Afco adjustable spring buckets and 650lb springs, 2" drop spindles (the ones with bolt on steering arms), Chevelle steering arms mounted backwards, inner tie rod mounts relocated 2 inches upward (cheap way of Ridetech's Truturn), SC&C Xtra tall upper ball joints, SPC upper arms, stock lowers. The thing handles great but I need a set of Corbeau seats pronto.

Front and rear shocks are Bilsteins revalved by Race Car Dynamics.

Sorry if i missed it but what were the new dyno numbers after the pistons and rods?
thanks

It was nice to talk to you as well.



The rear is caltrac split mono's with a 3" drop, relocated shocks on a crossmember.

Front is stock sub, Afco adjustable spring buckets and 650lb springs, 2" drop spindles (the ones with bolt on steering arms), Chevelle steering arms mounted backwards, inner tie rod mounts relocated 2 inches upward (cheap way of Ridetech's Truturn), SC&C Xtra tall upper ball joints, SPC upper arms, stock lowers. The thing handles great but I need a set of Corbeau seats pronto.

Front and rear shocks are Bilsteins revalved by Race Car Dynamics.

thank you !

How far do honestly feel the small bore aluminum can go? Would 900-1000Hp wheel be asking for trouble? Any reason you didn't bore it out to 3.9x?

I ask because I have a l33 bare block, just trying to decide what I want to do with it.

Thanks bud.

How far do honestly feel the small bore aluminum can go? Would 900-1000Hp wheel be asking for trouble? Any reason you didn't bore it out to 3.9x?

I ask because I have a l33 bare block, just trying to decide what I want to do with it.

Thanks bud.

I dont see any issues going to 1000rwhp. However your going to need a monster turbo to push that much airflow at the expense of spooling and street manners. The liners are really thick in the L33 so I wanted to keep that so I didnt bore it any bigger. Mine's a street car that also will see some road course and auto x duty so a bigger turbo was out of the question.

Nate, where did you clearence the tunnel for the 80e, and what controller are you using???

I didnt have to clearance the tunnel much. Maybe a tap or two but the Nova tunnel is a little more rounded than the squared off Camaro tunnel. Im just using the stock 5.3 ecm and harness with a segment swap via HPtuners.

Sorry, I should have edited my post I read that on the 1st page, thanks

I have the option to buy a iron 6.0 with a 80 complete, they say its locked up, then the other guy says its not, have to see, but either way its a good deal, what crossmember did you mod, where your first build thread?? thansk man!!

Chevelle steering arms mounted backwards, inner tie rod mounts relocated 2 inches upward (cheap way of Ridetech's Truturn),

I was wondering when someone was going to try a home built TruTurn system. Have you checked the bumpsteer numbers with your setup? Ridetech advertises .050" throughout the suspension travel. I would be interested to see what yours comes out to?

How did you come up with the 2" raise? Is that what the Ridetech piece is?

Great project btw

New video from the track. This one is a redlight pass but was one of the better videos.
http://www.youtube.com/watch?v=bJPripkxYZo&feature=plcp

The car did go 9.98 at 139 for my personal best.

Sick nova!! I have heard tons about it but have yet to see it.... Fate cant be put off for ever... lol

One of these days I will call and chat, I have been going to for like 6 months now... lol

I saw this thing in action at Rock Falls, runs really well and is put together extremely clean!

nice build man what rear end and gear you running?

stock 12 bolt with 3:42s.

Awesome build man, I love how clean and simple you kept everything, looks great! Congrats on the 9 second pass too. What psi were you running on the last dragstrip outing? Any chance you would post a slip or at least the 60ft?

More pics
http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Corashednova007.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Corashednova010.jpg

Ill throw some other random shots of the car in here too.

http://i1025.photobucket.com/albums/y314/LS1NOVA/Nate_Shaw_71_Nova_546.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/Nate_Shaw_71_Nova_Day_2_081.jpg


Friggin nice car man!!! Those wheels look awesome on there!!!!! Must be fun as hell w/ that much power!!!

Its a blast to drive! Love having classic looks, modern handling, and kickass power. My idea of the perfect street car.

Nice build man, Your car is sick.... Where can I find the ls4 manifolds and flanges at? That passenger side header would clear my a/c setup... I need one of those bad...I'm trying to put together almost the same exact build..

Thanks

Nice Build! I would love to have this setup!

Sorry if I missed it, but
- what manifolds are those?
- think they would work with truck accesories?
- do you run dual exhaust? If so what size? Pics?

Sorry if I missed it, but
- what manifolds are those?
- think they would work with truck accesories?
- do you run dual exhaust? If so what size? Pics?

-Left=05-07 Trailblazer right side, Right=LS4
-Without a p/s pump sure, with a p/s pump, no way.
-Single 4" to the trans then 3.5" into a Magnaflow 6" case then out in back of the rr tire.

That thing is nice!
Good job.

-Left=05-07 Trailblazer right side, Right=LS4
-Without a p/s pump sure, with a p/s pump, no way.
-Single 4" to the trans then 3.5" into a Magnaflow 6" case then out in back of the rr tire.

Wow you are running 9's on small tires in a car set up for turning corners through 3-1/2" exaust! Well done!!

What is a LS4?

Ls4 is the 5.3's out of the newer gtp's

this car is soooooooooo bad ass

Thank you.


Mods for the winter: 231/236 cam to replace the 224/228, LS2/92mm to replace the LS1/78, porting the 799 heads, and some suspension tuning.

New goal. 8.99. Big goal but hey why not.

Such a gorgeous car, can't wait to see it in action next year.

That is a beautiful car!

Oh.. so its just a 231/236 cam now huh?

Oh.. so its just a 231/236 cam now huh?

Yeah, got it from some dude on the internet...:secret2::chug:

Nate,
Did you get a dyno print out from your session? If so, would you please post it.

Thank you

very nice.

Nate,
Did you get a dyno print out from your session? If so, would you please post it.

Thank you

I did but its graphed in mph instead of rpm and its pretty useless.

Ill post a new one this spring when it makes 850rw, he he.

I hope to see that 850 dyno graph. How high do you spin the motor while racing? 7k?

So far just 6500, but with the new cam and heads, going to take it to 6900-7000.

that'd be coool to see this thing at rock falls next year. ill keep my eyes peeled

Sick man , just awesome!

Nate,
With the newer driver side manifold flipped down and forward, are you still able to run the power steering pump and alternator in the stock locations?

Nate,
With the newer driver side manifold flipped down and forward, are you still able to run the power steering pump and alternator in the stock locations?

Yes, Corvette bracket.

Nice build.

Awesome build, love it!

Someone asked for current engine shot, thought I had one in here but guess not.

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Nova001.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Nova003-1.jpg

http://i1025.photobucket.com/albums/y314/LS1NOVA/71%20Nova%20build/Novaandcora009.jpg

:hump: :drool:

Looks good! What did you do for a cross member? I assume you built one?

Woooooooooooow!

Wow, so you have power steering it appears. Is it a tight fit on the drivers side for the exhaust with that accessory setup? What accessory bracket and pulleys are those specifically?

Clearance isn't bad. Corvette bracket,alt,ps reservoir,and pulley. Ps pump is a generic type 2 with a plumbing elbow pressed in it.

man this is inspiring. your car is beautiful. we have a 72 and i plan to do a very similar setup. i kinda had my mind setup on a TCI subframe/torque arm setup, but after seeing yours kinda makes me wanna stay somewhat simple. do you have any pics of the intercooler fitment? thats a concern for me.

Also, any idea on LSA (newer CTS-v) manifold fitment? we have a set, they appear to tuck more (i.e. tighter bend radius)

Beautiful car Nate. Would love to see it in person. There is a group of us going to RockFalls on 4-27 if you want to lead a pack of G8's.

Saw this car at ricekillers. Really nice man!

Are those 2.25 or 2.50" V-bands on those truck manifolds?

2.25, I don't use 2.5 on much anymore.

Beautiful car Nate. Would love to see it in person. There is a group of us going to RockFalls on 4-27 if you want to lead a pack of G8's.

I will try to get it back together by then. Sounds fun!

Looks good man, those top two pics remind me of the kit i built for my GTO a couple years ago, reminded me of the hell, lol. Although, i always like the wastegate right next to the turbo, looks good man.

How much power does it make at 17-18psi? Over 700rwhp?

717w at 17psi on a Dynojet converter unlocked 12to1 AFR. It better do 900w this year!

900? Are you going to push more boost, or are you installing a new turbo?

Precision 88, ported heads, new cam, LS2 intake, 90mm tb, 25psi or wherever it stops making power.

i want to see a H beam through the block this year! All in the name of R & D, lol

Precision 88, ported heads, new cam, LS2 intake, 90mm tb, 25psi or wherever it stops making power.
Should be fun to watch :eek2:.

i want to see a H beam through the block this year! All in the name of R & D, lol

Oh come on, dont you have faith in China metallurgy!

Pics! Pics! I'm going T6 on my setup. These things take up quite the footprint.

It wont be back together until April.

Let me ask you this... what prompted the change?

my lil 5.3 was loving the pt88, damn nice turbo,no hp #, here at a local raceway cars traping in the low 140smph on 16-18psi

Let me ask you this... what prompted the change?

Really want to take the car to the next level. Thought about staying with the 76 and doing the engine mods and trying it out but Im feeling the turbine is getting on the small side if I plan on taking it to the max. Lots of SBF guys making it happen with that turbo but I have this PT88 laying here and the 84mm turbine is better suited. Still small .96 T4 AR but should make it spool well with an auto. Since I got it in the 9's last year, Id like to shoot for 8's this year if it stays together. Needs some safety updates as well though.

FWIW, I say 900 but Id really like to have a 1000rwhp 5.3. I know its just dyno numbers but I want it.

You still running it with the trunk fuel cell and twin pumps under the trunk? Also, tranny cooler back by the trunk still? You've had a lot of drive time on this thing so I wanted to see if you had any issues?

Still looks awesome man!
Dave

Yes, still the same except the Walbro 255's have been replaced by Bosch 044's. Trans cooler works great under there.

Nate,

Do you have any pics of where you mounted the trans cooler? Also, do you have a temp gauge to monitor the heat of the trans?

How much boost were you running when you trapped 139mph?

Nate,

Do you have any pics of where you mounted the trans cooler? Also, do you have a temp gauge to monitor the heat of the trans?

Do a search under the threads he started. Look for his original 6.0 build. It shows up pretty early in the thread.

If not then you can definitely find it on Pro-Touring.com.

Dave

I have a good pic but photobucket has been slow lately. Its flat under the trunk floor with about 1" between the floor and cooler. Has a fan and a thermostat on it. I dont have a temp gauge but the thermostat kicks the fan on at 160 degrees and I dont hear that kick on too often.


139 runs were at 17psi with it being a little lazy out of the hole on the footbrake. I flip a toggle half track to 23psi. It has run 141 before.

Maybe I missed it, but what race weight is this at?

3540 with me in it.

Really want to take the car to the next level. Thought about staying with the 76 and doing the engine mods and trying it out but Im feeling the turbine is getting on the small side if I plan on taking it to the max. Lots of SBF guys making it happen with that turbo but I have this PT88 laying here and the 84mm turbine is better suited. Still small .96 T4 AR but should make it spool well with an auto. Since I got it in the 9's last year, Id like to shoot for 8's this year if it stays together. Needs some safety updates as well though.

FWIW, I say 900 but Id really like to have a 1000rwhp 5.3. I know its just dyno numbers but I want it.

I hear that man, beautiful car, and if you've got the know how, time and money then by all means, make it happen! Can't wait to see what the 88 will do in that thing! I opted for the S475, T6, 1.32 96mm turbine, if I need bigger, I'll go to the 80. I was also concerned with a small turbine on a 6.0. Just about ready to fire mine, got the engine primed up, just finishing up some wiring (replaced the whole harness for the entire car) and will get this thing going!

Nate, would you mind PM'ing me the external dimensions of the PT88? real rough and dirty...front to back, diameter of the Turbine and compressor?

I am using a T66 I have laying around to start the hotside but will be getting the PT88 in a month or two...I just want to make sure I am leaving enough clearance for the hood, etc...

Money tightened up a bit since I found out I'm gonna be a Dad! haha...

Money tightened up a bit since I found out I'm gonna be a Dad! haha...

Congrats man! Hope you're ready for the sleepless nights, lol. Feedings every 2-3hrs, doesn't last that long tho.

Money tightened up a bit since I found out I'm gonna be a Dad! haha...

That's awesome man! Congrats! Money's been tight for me with 3 little ones, but it's WELL worth it!

Cool car. Congrats on your magazine article too.

Nate, would you mind PM'ing me the external dimensions of the PT88? real rough and dirty...front to back, diameter of the Turbine and compressor?

I am using a T66 I have laying around to start the hotside but will be getting the PT88 in a month or two...I just want to make sure I am leaving enough clearance for the hood, etc...

Money tightened up a bit since I found out I'm gonna be a Dad! haha...

Congrats!

The PT88 is 7 3/4" on the compressor, measured 90 degrees from the outlet.
8" on the turbine, measured 90 degrees from the inlet.
Overall length is 10 1/2"

Appreciate it...thanks!

Nice job Nate.
Really enjoyed the magazine article.
I always gravitate to Nova articles having one myself. Mine is way more of a drag car, but is always driven to the track.
Should my rat motor ever expire, a turbo LS will be next up. Would for sure make more of a driver compared to what mine is now.
I bought my vette to learn the LS as well as tuning, so an LS in the Nova would be a natural evolution.
Keep up the excellent work!

Ron

Epic build man!!

Any performance updates with the new turbo?

Ron

Been too busy with other stuff but wittling away at getting it running again. Added an oil cooler. Just need to finish up the downpipe and some misc.