SN95 Blowthrough Forged 370/S480 Build UPDATE: Its Alive! Vid added - LS1TECH



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SN95 Blowthrough Forged 370/S480 Build UPDATE: Its Alive! Vid added

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Old 08-30-2015, 12:58 PM   #1
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Arrow SN95 Blowthrough Forged 370/S480 Build UPDATE: Its Alive! Vid added

Hey guys im finally almost done with my new build so I figured I would start a new thread. This car previously had a SBE 5.3 225k LKQ motor that i did a VERY basic cam only/nitrous setup on which worked very well. After getting bored with the nitrous setup I took the plunge to go Forged Iron Block 370/6.0 with my own built S480 turbo setup.... Heres a run down of the simple 5.3 setup that netted me a 11.80s on motor and low 10s on nitrous.


OLD SETUP


03 5.3 225k mileage (don't care lol paid 500.00)
melling hv pump
ls2 timing set
GMPP ASA cam 226/236 .525/.525 110
Mls gaskets
comp 7.4 pushrods
Chinese head studs
862 heads milled .030
Comp 26-915 beehive springs
NGK Br7EF plugs
edelbrock vic jr intake
msd 6010
Barry Grant Mighty Demon 750 annular carb
Dynatech 1 7/8 longtubes, x pipe, ultra flo mufflers
Jw Th400 Reverse manual transbrake trans
Revmax Billet 3600 nitrous convertor

3100lb SN95 mustang
Full Upr chromoly tubular front everything
strange 10 way front/rear
Full Team Z rear suspension
1000hp 8.8 rear (spool,4.10,33spl mosers)
275/60/15 rear

The car was tuned on 93 pump gas for the motor and has a front cell for nitrous that runs 118 Outlaw N20 fuel.

In 97 degree heat the car made 308 WHP on motor through the TH400. The car made 475 wheel on a 15 year old nitrous works single plate on a 175. We did jet the car to 225 but, with the ASA cam being a 110 lob sep It didn't pick up enough hp to justify spraying it with that so I backed it down to the 175.


NEW SETUP


The camshaft is a Custom hydraulic roller from John Bewley @ Liljohnsmotorsports (similar stage 3'ish). The cam has a good amount of overlap in it due to this setup being a Blow Through style setup.. Very excited to hear the lope its going to have! The head gaskets are GMPP Ls9's installed dry with Alpermotorsports head studs. Stock rockers with Comp trunions installed. Topping the engine off is a edelbrock Super Victor manifold and Carb Shop Blow Through Holley 750 E85 billet annular booster carb. Pretty simple setup!

Heres some pics of the engine build from the beginning of diassembly to completion. I learned so much doing all myself! I used one of the LS assembly books that helped me greatly. Degree'ing the camshaft was a bitch in the beginning but i stuck with it and got it all figured out. CANT WAIT TO FIRE IT!!!!

The Car












Video of 5.3

370 Build

2005 block
bored .035, torque plate honed, decked and squared
Clevite main/rods bearings to clearence
arp main studs
stock polished crankshaft
Scat H beam rods
Wiseco K398x 2618 forged pistons with skirt coating
Wiseco Gfx rings gapped at .28
Ported LS6 oil pump
GMPP Muscle car pan
ATI Dampner
LilJons Custom Hydraulic Roller
GMPP LS9 gaskets installed dry
Alpermotorsports Head studs 85ftlbs
317 heads cleaned blasted, decked
PRC .650 springs, TI retainers, stock valves
Comp .80 wall one peice pushrods
Comp Trunion Upgrade
Fel Pro gaskets throughout
Edelbrock Super Victor Intake manifold
Carb Shop E85 Blow Through Billet Annular boosters holley 750 4150 Carb
Procharger Hat with extension ring underneath





































































Last edited by Serioussn95; 10-17-2015 at 01:42 PM. Reason: added vid
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Old 08-30-2015, 01:00 PM   #2
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I still need to install the ATI balancer and Hawks Relocated Alternator setup but heres the finished product!
















Heres pics of the turbo build. The turbo kit started out as the "Denmah" kit from Viren @ VS Racing. The orginal turbo was one of his 78/75 units but after falling into a super deal on a Borg Warner S480, I sold the 78/75 to a friend. The hotside piping was built from a Columbia Mandrel Super builder kit using 2.25 divided pipes into a raceparts solutions divided flange. The entire hotside is divided to help with spooling the T6 flanged turbo. I bought a cheap mig to do all of this but after getting more involved in the project I bought an AHP TIG 200x AC/DC unit. The unit works excellent and for the price I would say you cannot find a comparable unit!

Originally I started out with non egr truck manifolds. After having a hell of a time with getting the turbo where I wanted it, I gave up on the manifolds and purchased the "ebay" stainless tubular headers from a guy on the classifieds. The quality is actually awesome, very this flanges and primary tubing. The only down fall was the collectors came off like 6-7" so I had to cut them, re weld them back down right off the collector. here was the original plan for turbo placement.



This was the first mockup. After having a buddy come over and convince me to say F*ck it, go forward facing that's what I ended up doing. I scrapped this plan and used some of the piping on the new setup.



These are the reducer cones I cut down to fit the v bands on the tubular headers. This was a bit of a bitch bc the only thing I could use was a cutoff wheel instead of a saw. Also my first time tigging stainless steel. Still working at it lol



the start of the forward facing hotside mounting.




I got the wastegates plumbed up. This with a little bit of a process because this being my first turbo kit I didn't really now how to cut the angle of the piping without making it way too big. The remedy I used to was stepped bit that made the hole, then after tracing the outer diameter of the pipe, I then used an air grinder to gradually open the whole to size. I then welded on the wastegate pipes. Once welded, I used a 6' carbide burr to go inside and port everything out so there are no restrictions in air flow. I also took some time and fully ported the divided flange to a knife edge on the divider as well. I know its probably overkill but I was already in there cleaning stuff up anyways lol.



I used 2000* rustoleum BBQ paint to coat the hotside piping. I also will be wrapping the hotside with DEI Titanium wrap as well.




Turbo mounted.




Now I decided to make an intercooler mount using some square bar I found at home depot.






The radiator is a champion unit I found on ebay to fit the limited space I had to use. Its very nice quality, double pass, and 3.25 thick so it should do the trick. Im using an Fbody pump with a washer/restrictor style thermostat.
I made some cheap lower radiator mounts from some fence/gate ties I found at home depot. I welded them together and then welded them to the lower rad support base. I bought 1" thick door trim sealer to use as cushion for the bottom of the rad mounts which provides a snug fit when the rad is in.







The fan is a preform unit that has an integrated fan,shroud, and thermostat unit. The fan supposedly flows 2800cfm per the specs provided, hopefully it will work well since im driving the car on the street a lot.

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Old 08-30-2015, 01:00 PM   #3
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I still need to install the ATI balancer and Hawks Relocated Alternator setup but heres the finished product!
















Heres pics of the turbo build. The turbo kit started out as the "Denmah" kit from Viren @ VS Racing. The orginal turbo was one of his 78/75 units but after falling into a super deal on a Borg Warner S480, I sold the 78/75 to a friend. The hotside piping was built from a Columbia Mandrel Super builder kit using 2.25 divided pipes into a raceparts solutions divided flange. The entire hotside is divided to help with spooling the T6 flanged turbo. I bought a cheap mig to do all of this but after getting more involved in the project I bought an AHP TIG 200x AC/DC unit. The unit works excellent and for the price I would say you cannot find a comparable unit!

Originally I started out with non egr truck manifolds. After having a hell of a time with getting the turbo where I wanted it, I gave up on the manifolds and purchased the "ebay" stainless tubular headers from a guy on the classifieds. The quality is actually awesome, very this flanges and primary tubing. The only down fall was the collectors came off like 6-7" so I had to cut them, re weld them back down right off the collector. here was the original plan for turbo placement.



This was the first mockup. After having a buddy come over and convince me to say F*ck it, go forward facing that's what I ended up doing. I scrapped this plan and used some of the piping on the new setup.



These are the reducer cones I cut down to fit the v bands on the tubular headers. This was a bit of a bitch bc the only thing I could use was a cutoff wheel instead of a saw. Also my first time tigging stainless steel. Still working at it lol



the start of the forward facing hotside mounting.




I got the wastegates plumbed up. This with a little bit of a process because this being my first turbo kit I didn't really now how to cut the angle of the piping without making it way too big. The remedy I used to was stepped bit that made the hole, then after tracing the outer diameter of the pipe, I then used an air grinder to gradually open the whole to size. I then welded on the wastegate pipes. Once welded, I used a 6' carbide burr to go inside and port everything out so there are no restrictions in air flow. I also took some time and fully ported the divided flange to a knife edge on the divider as well. I know its probably overkill but I was already in there cleaning stuff up anyways lol.



I used 2000* rustoleum BBQ paint to coat the hotside piping. I also will be wrapping the hotside with DEI Titanium wrap as well.




Turbo mounted.




Now I decided to make an intercooler mount using some square bar I found at home depot.






The radiator is a champion unit I found on ebay to fit the limited space I had to use. Its very nice quality, double pass, and 3.25 thick so it should do the trick. Im using an Fbody pump with a washer/restrictor style thermostat.
I made some cheap lower radiator mounts from some fence/gate ties I found at home depot. I welded them together and then welded them to the lower rad support base. I bought 1" thick door trim sealer to use as cushion for the bottom of the rad mounts which provides a snug fit when the rad is in.







The fan is a preform unit that has an integrated fan,shroud, and thermostat unit. The fan supposedly flows 2800cfm per the specs provided, hopefully it will work well since im driving the car on the street a lot.


Last edited by Serioussn95; 08-30-2015 at 01:12 PM.
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Old 08-30-2015, 01:36 PM   #4
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Made some removable upper radiator/fan supports




Painted everything up with the rustoleum gloss black. This stuff really lays nice!



Finally able to start cutting and fitting up all the cold side piping.





Just ordered another 50mm BOV from Viren at VSracing. Going to one preturbo and post turbo.


Mocking up the downpipe placement for the 5’ bumper exit. I have a %' MokeyFab ring im also putting on the car once everything is welded up in place.




LOL I coudnt push myself to spend 50.00 on a 5”I holes saw so I did it the sloppy style.



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Old 08-31-2015, 09:34 PM   #5
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Very nice work! This ought to be quite a rocket ship.
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Old 09-02-2015, 10:35 AM   #6
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Looks GOOD!
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Old 09-02-2015, 03:41 PM   #7
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thanks guys! its been quite the project lol. 3pedals ive followed your build for while, killer work man. Is your carb dual needle and seat?
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Old 09-02-2015, 04:05 PM   #8
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My CSU was a single needle and seat in each bowl. I ran Gas, and did not need the extra capacity for the power I made.
I have since switched to EFI, but its love/hate. the CSU was flawless
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Old 09-02-2015, 08:25 PM   #9
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Nice....
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Old 09-02-2015, 11:00 PM   #10
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I have also had Excellent results with CSU. Setup looks nice.
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Old 09-03-2015, 07:46 AM   #11
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Wow looks really good ! You will definitly enjoy your new setup. I'm subscribed .
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Old 09-17-2015, 03:09 PM   #12
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Thanks guys! Im going to push the limits on the single/needle and seat setup until i have to go to dual. There hasnt been alot of progress made to really post bc ive been gathering parts, BUT i am doing an entire rewire on the car which ill include all the pics. Stay Tuned!!!
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Old 10-17-2015, 01:41 PM   #13
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This was the first time we hit the starter with juice! Im very happy its finally running. Im finishing up the cooling system and wiring this week, then its off to the dyno! The carb is a Carb shop E85 750 with billet annular boosters. All it needed was a quick float height adjustment and idle adjustment but it is dead on! VERY responsive and idles great (couldn't go long bc no coolant).
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Old 10-26-2015, 09:14 PM   #14
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Nice job!!!
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Old 12-28-2015, 06:19 AM   #15
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Any updates? Would really like to know how the carb tuning is going on the Carb Shop unit. Looking to do a blow-through app here soon.
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Old 12-28-2015, 04:11 PM   #16
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Sorry guys ive been slacking on the updates. I was driving the car around on the NA timing staying out of boost just seating the rings which it ran well. I then installed the 3 bar MAP sensor and changed the tune. the tune is not there yet but it still ran okay. I thought I hurt it due to the rear needle and seat getting stuck and hydrolocking the engine. I had to drain all the oil which had about a gallon of fuel in it as well, really pissed me off. After changing plugs and driving it again, I tried to hit boost but the carb just **** all over itself. Being fed up I pulled the carb and sent it to Kevin @ CSU for a fuel rebuild. Once I get it back it will hit the dyno. Stay tuned!

Gtfoxy: nothing against Carb shop, but I would highly recommend Kevin for a blow through unit. a friend of mine made 680 wheel on a bone stock cam only 5.3 on pump gas and it ran flawlessly.
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Old 12-28-2015, 11:05 PM   #17
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Thanks for dropping by & giving an update.

Wow that sucks about the fueling issue. Could have been a lot worse or at the least washed a cylinder down before the rings could seat.

Ya know, that's why I asked about the carb shop carb. I've seen mixed reviews... & being in Canada makes sending it back & forth become pricey & time consuming.

CSU or C&S are my top choices for the project right now. I see Morris uses the CSU units quite a bit from reading & perusing the web. I played around with a blow through on a buddy's car way back when & It did OK. He & I did the stuff these shops do, most of it anyway it seems, but for a lot less but it takes trial and error. When carb shop says they dyno every carb before it goes out it makes me kinda . I mean even though they ask a lot of questions but with millions upon millions of combos, altitude, hardware variances, etc, what could it really achieve in the grand scheme of things? Maybe they get them close enough but from what I have found it still takes a fair amount of tweaking. That really goes for any of them, honestly, It's the nature of the beast.

One thing I will mention, since you were talking ignition advance, on my buddy's car we locked the timing at 14*'s & ran it. It actually ran pretty decent & made some respectable power for a 72mm on a 306 using old-school carb tricks.

Can't wait to see how it starts to work out for you.

Last edited by gtfoxy; 12-28-2015 at 11:18 PM.
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Old 02-08-2017, 01:59 PM   #18
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Any updates on this thing? I have a similar setup that will be running in the next month or so.
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Old 02-09-2017, 09:31 PM   #19
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Quote:
Originally Posted by boostedrides View Post
Any updates on this thing? I have a similar setup that will be running in the next month or so.
I think he took it to the track once and got booted after 1 pass. He is putting a cage in it and doing some other upgrades.
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Old 02-18-2017, 07:37 PM   #20
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Hey guys sorry ive been busting *** on upgrading the car lately! Uraloser2me is right, lol I took to the track and went 9.90 at 141.8 on 10lbs of boost with the cast wheel S480! The AFR was super( low 10s) fat but I didn't care hahah They weren't happy I didn't have a cage so I pulled the car back into the garage to cage it! It was a hell of a process but I'm glad I did it myself! I also swapped out the Cast wheel Borg S480 for a VSRacing Billet 88mm unit! I upgraded the shocks to the Viking Crusader double adjustables along with pulling the radial off and adding some hoosier 28x10x15 for no prep racing. Lastly I added the Boost leash/pulse leash combo from John at LJMS. Heres a video of the updates. Ive been trying to upload a lot to youtube so click the follow/subscribe button if you like the car! Thanks guys!


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