Dynamometer Results & Comparisons - Dyno Results After NEW FAST 92 Install .
99canadahawk
08-11-2012, 10:53 AM
So finally had my NEW FAST 92 Installed just the other day along with a NW TB & 160* Stat & dyno`d it yesterday .
http://i713.photobucket.com/albums/ww138/99canadahawk/IMG_1030.jpg
http://i713.photobucket.com/albums/ww138/99canadahawk/hpqscan0001-2.jpg
Might look into a set of 3:42 Gears or a Cam & Converter for next season
Any thoughts ?
Thanks .
1nasty86
08-11-2012, 11:14 AM
i would have def. done an egr delete.... but looks good man
reeperz28
08-11-2012, 11:21 AM
I would like to see the cam results now haha. Any reason for the egr?
99canadahawk
08-11-2012, 12:09 PM
Thanks guys ! as for the EGR , I wanted to keep it Emissions Legal for now until the regulations change , car just litterly squeeked buy the smog test last year LOL .
ScreaminRedZ
08-11-2012, 04:45 PM
Nice gains, that intake looks great in the black with red.
Automatic Firehawks all have 3.23's or did some come with 2.73's?
transamtom
08-11-2012, 05:01 PM
So 13 HP and 10tq over the stock LS1?
Did you get it tuned as well?
senicalj4579
08-11-2012, 05:10 PM
I see your sig says tuned by champion...was the car tuned before this?
Floorman279
08-11-2012, 08:16 PM
wtf.....why does it say mph along the bottum and not engine speed
02TransAm/Batmobile
08-12-2012, 01:49 AM
I don't like how you lost torque down low. Pretty expensive for 13 horses.
usmcpi
08-12-2012, 02:18 AM
Was this the first tune that the car ever had? If so, Id attribute the power gains to the tune, not the FAST
My6speedZ
08-12-2012, 07:32 AM
Not bad, your cam gains will be a little bit better in the future. Your car looks sweet too I love Firehawks.
Blownbayou
08-12-2012, 07:49 AM
nice gain but I agree with batmobile....... Hate to give up the torq
s346k
08-12-2012, 09:33 AM
i'd guess he won't notice that tq loss. consider this graph is recording wide open throttle, not part-throttle. you guys and your torque arguments lol. i'd doubt he notices anything driving around normally. when's the last time any of you did pulls from 2500 rpm in 4th gear? now the car makes the same tq that a completely stock ls1 does, which is obviously more than enough for putting around.
any cam he does in the future will be miles ahead of an ls1 or even ls6 intake.
99canadahawk
08-12-2012, 09:39 AM
Nice gains, that intake looks great in the black with red.
Automatic Firehawks all have 3.23's or did some come with 2.73's?
- Thanks man , Yep 3:23`s just like the WS.6 Auto`s , that`s why the guy`s at shop suggested getting a different set of gears to move the power band .
So 13 HP and 10tq over the stock LS1?
Did you get it tuned as well?
- Yep it was cleand up a little on the dyno , I know 13HP & 10TQ LOL . . but I think between the 3.23 gears & 295 rear tires might have lost a quite a bit , also it was a humid day my tuner said not too expect too see a huge difference because there is more water than air in the air & the car might be making more power but its just not going to show on the dyno .
I see your sig says tuned by champion...was
the car tuned before this?
- Yep car was previously tuned last year when I had headers installed I just had it cleaned up , made a huge difference in drivabillity .
wtf.....why does it say mph along the bottum and not engine speed
- I noticed that my self the car was pulled 4 times on the dyno it`s just the sheet I ended up getteing .
senicalj4579
08-12-2012, 09:47 AM
alright so that is a good gain. I wouldnt expect that much on a stock internal car. Shit, I wonder how much my 92mm fast was actually worth along with the heads and cam I just did. I sure as hell dont believe it was much more than 5 rwhp over my old ls6 intake.
Oh I just noticed you are a 99 so was this going from ls1 intake? If so then thats why the gains are so high. Good gains on your car anyways :D
99canadahawk
08-12-2012, 09:52 AM
alright so that is a good gain. I wouldnt expect that much on a stock internal car. Shit, I wonder how much my 92mm fast was actually worth along with the heads and cam I just did. I sure as hell dont believe it was much more than 5 rwhp over my old ls6 intake.
Oh I just noticed you are a 99 so was this going from ls1 intake? If so then thats why the gains are so high. Good gains on your car anyways :D
Thanks senical , yep orignally had the LS1 intake , BTW how did you get the SLP bellow to fit ? I tried to trim mine down but could`nt get it to fit right , ended up using the stock one .
- So after all this do I gear & stall the stock 10 Bolt ?
- Or do stall & cam ?
senicalj4579
08-12-2012, 10:14 AM
Thanks senical , yep orignally had the LS1 intake , BTW how did you get the SLP bellow to fit ? I tried to trim mine down but could`nt get it to fit right , ended up using the stock one .
- So after all this do I gear & stall the stock 10 Bolt ?
- Or do stall & cam ?
Yep good gains.
Slp bellow over the tb? Well mine is nw 92mm tb and zo6 85mm maf and it fits. It dosent slide on very easy so it have to be stretched somewhat but I like it. Fits like skin on the hand. :)
Just realized you might be talking about the length of the setup? It all fits great for mine...92mm fast, nw 92mm tb, slp smooth bellow, zo6 85mm maf, ftp 98mm lid. No cutting down or anything.
I would do everything and be done. Throw some heads in there to! :)
ScreaminRedZ
08-12-2012, 10:52 AM
i'd guess he won't notice that tq loss. consider this graph is recording wide open throttle, not part-throttle. you guys and your torque arguments lol. i'd doubt he notices anything driving around normally. when's the last time any of you did pulls from 2500 rpm in 4th gear? now the car makes the same tq that a completely stock ls1 does, which is obviously more than enough for putting around.
any cam he does in the future will be miles ahead of an ls1 or even ls6 intake.
I was thinking almost exactly the same thing.
- Thanks man , Yep 3:23`s just like the WS.6 Auto`s , that`s why the guy`s at shop suggested getting a different set of gears to move the power band .
I doubt you'd even notice the different with 3.42's. Cam/converter is the way to go in my opinion :cheers:
My6speedZ
08-12-2012, 11:05 AM
you guys and your torque arguments lol. i'd doubt he notices anything driving around normally. when's the last time any of you did pulls from 2500 rpm in 4th gear?
I was thinking almost exactly the same thing.
Kind of like the 1 7/8 naysayers that talk about the loss you'll see on a stock cubes below 3000 rpms. I think people read to many dyno graphs and forget where our motors actually live when we drive them hard.
02TransAm/Batmobile
08-13-2012, 03:51 AM
i'd guess he won't notice that tq loss. consider this graph is recording wide open throttle, not part-throttle. you guys and your torque arguments lol. i'd doubt he notices anything driving around normally. when's the last time any of you did pulls from 2500 rpm in 4th gear? now the car makes the same tq that a completely stock ls1 does, which is obviously more than enough for putting around.
any cam he does in the future will be miles ahead of an ls1 or even ls6 intake.
I DEFINITELY feel less torque when I had my cut-out open. When closed, even though it didn't scream up top, I noticed increased "torqueness". I'm sure on a dyno, the difference between open and closed would be abysmal.
transamtom
08-13-2012, 03:18 PM
-
- Yep it was cleand up a little on the dyno , I know 13HP & 10TQ LOL . . but I think between the 3.23 gears & 295 rear tires might have lost a quite a bit , also it was a humid day my tuner said not too expect too see a huge difference because there is more water than air in the air & the car might be making more power but its just not going to show on the dyno -
Thats a pretty decent gain,I think I got abot 10hp with my LS6.
I have no before and after dyno's just timelips that show I picked up just over a 1/10th in the 1/4.
bamaballa205
08-13-2012, 11:53 PM
Pretty decent pick up on a otherwise stock block. Wish I could afford one LOL
I8UR4RD
08-14-2012, 06:58 PM
this has been run in the ground. any gains are good gains with those mods. where the fasts really start to shine is when you start flowing some serious air. For a boosted guy such as myself, the gains from a ls6 intake to a fast 102mm would be noticeable. opening the cutouts will prob lose tq, but increase the hp, and make it pull up top which is where the motor is living. I mean you only need so much tq to make a decent 60 foot.
if you ever decide to have it painted. silverghost aka powderpro is the guy to call.
hes doing my 102/102
02TransAm/Batmobile
08-15-2012, 02:43 AM
Pretty decent pick up on a otherwise stock block. Wish I could afford one LOL
I don't get it. I'm more of a best "bang-for-buck" kinda guy so I don't understand why some guys have a hard time justifying an underdrive pulley for 5-10 horses but a FAST setup is considered a good investment. There was a time when people were ridiculed for opting for an Meziere electronic water pump for the mere average of 8 horses at 600-700 bucks but now when someone drops around a grand for 13 horses, everyone pats him on the back?
I understand that the FAST potential opens up with larger cubes, cam, etc., but I am not arguing that. In this case, it didn't seem like a wise mod to do at this stage.
I am not knocking on you OP personally, jus' a rant about FAST intakes' popularity in general.
transamtom
08-15-2012, 11:11 AM
I don't get it. I'm more of a best "bang-for-buck" kinda guy so I don't understand why some guys have a hard time justifying an underdrive pulley for 5-10 horses but a FAST setup is considered a good investment. There was a time when people were ridiculed for opting for an Meziere electronic water pump for the mere average of 8 horses at 600-700 bucks but now when someone drops around a grand for 13 horses, everyone pats him on the back?
I understand that the FAST potential opens up with larger cubes, cam, etc., but I am not arguing that. In this case, it didn't seem like a wise mod to do at this stage.
I am not knocking on you OP personally, jus' a rant about FAST intakes' popularity in general.
Me too on the bang for buck thing thats why I did a used LS6,but he got decent gains plus it may turn out to be more with future mods and if he has the money then why not?
Lets be happy for him,it is his thread after all:)
TransAmcoupe98
08-15-2012, 11:30 AM
Your going to see the intake really compliment a cam swap as then it will REALLY benefit from the added air. Dont listen to these guys saying 13 HP isnt much. With stock cam, thats significant. With a good camshaft with lift around .600, you will have gains about an additional 25-30 whp over a stock LS1 intake and 15-20 over an LS6.
Scoggin Dickey
08-15-2012, 11:32 AM
you can only get so caught up in peak numbers anyways. Look how much better it carries in the upper rpm, that will only get more and more dramatic with a cam and especially heads/cam.
TransAmcoupe98
08-15-2012, 11:37 AM
you can only get so caught up in peak numbers anyways. Look how much better it carries in the upper rpm, that will only get more and more dramatic with a cam and especially heads/cam.
^^^This
99canadahawk
08-15-2012, 07:43 PM
I don't get it. I'm more of a best "bang-for-buck" kinda guy so I don't understand why some guys have a hard time justifying an underdrive pulley for 5-10 horses but a FAST setup is considered a good investment. There was a time when people were ridiculed for opting for an Meziere electronic water pump for the mere average of 8 horses at 600-700 bucks but now when someone drops around a grand for 13 horses, everyone pats him on the back?
I understand that the FAST potential opens up with larger cubes, cam, etc., but I am not arguing that. In this case, it didn't seem like a wise mod to do at this stage.
I am not knocking on you OP personally, jus' a rant about FAST intakes' popularity in general.
-I`ll admit that it may not have been the best mod for the money I spent & have done but it does like others have said to set me up for future mods originally I was going to go with a BBK LOL !
Me too on the bang for buck thing thats why I did a used LS6,but he got decent gains plus it may turn out to be more with future mods and if he has the money then why not?
Lets be happy for him,it is his thread after all:)
- Thanks Bro ! :) One reason why I did`nt go with the LS6 was the EGR as I wanted to keep my emissions , for now anyways .
Your going to see the intake really compliment a cam swap as then it will REALLY benefit from the added air. Dont listen to these guys saying 13 HP isnt much. With stock cam, thats significant. With a good camshaft with lift around .600, you will have gains about an additional 25-30 whp over a stock LS1 intake and 15-20 over an LS6.
BTW just so every one knows the SOTP feel is a little better now more so in the 60KPH+ up range & louder too Whoo Hoo !!
So I`ve come up with a list of parts for next season .
-TSP TR224R or a 228R 112 LSA Cam kit , not sure witch one is better for emisions ?
-SLP UDP
-SLP Oil pump & Timing Chain
-COMP Cams Pro Magnum Rocker Kit - 1:75 Ratio ?
-Yank 3000 Stall ?
-B&M Trans Cooler
Now I`m not sure if this combo is a one good or will work so. . . .?
And later down the road maybe some AFR 210`s :)
Thanks for everyone`s thoughs & opinions about the FAST intake manifold .
02TransAm/Batmobile
08-16-2012, 12:46 AM
you can only get so caught up in peak numbers anyways. Look how much better it carries in the upper rpm, that will only get more and more dramatic with a cam and especially heads/cam.
I am not looking at peak numbers either - I don't like how he lost torque under the curve.
02TransAm/Batmobile
08-16-2012, 12:49 AM
-I`ll admit that it may not have been the best mod for the money I spent & have done but it does like others have said to set me up for future mods originally I was going to go with a BBK LOL !
Sounds good bro. Still, after swapping cams you could spend that 1000 on nitrous - bolt on up to 150 more horses. I'm jus' not a FAST intake guy I guess.
bamaballa205
08-16-2012, 03:00 AM
I don't get it. I'm more of a best "bang-for-buck" kinda guy so I don't understand why some guys have a hard time justifying an underdrive pulley for 5-10 horses but a FAST setup is considered a good investment. There was a time when people were ridiculed for opting for an Meziere electronic water pump for the mere average of 8 horses at 600-700 bucks but now when someone drops around a grand for 13 horses, everyone pats him on the back?
I understand that the FAST potential opens up with larger cubes, cam, etc., but I am not arguing that. In this case, it didn't seem like a wise mod to do at this stage.
I am not knocking on you OP personally, jus' a rant about FAST intakes' popularity in general.
I've already done the best bang for the buck options which I was all about doing 1st. I've always wanted a Fast to complete my build along with a set of 1 7/8 headers which I'll have one day too. Yeah it's not the best bang for the buck but I know that I'm prob leaving 20-30rwhp on the table with my set-up. And nope I'm not trying to get every little bit of power out of my car. Just want to put the finishing touches on my build.
bamaballa205
08-16-2012, 03:06 AM
your going to see the intake really compliment a cam swap as then it will really benefit from the added air. Dont listen to these guys saying 13 hp isnt much. With stock cam, thats significant. With a good camshaft with lift around .600, you will have gains about an additional 25-30 whp over a stock ls1 intake and 15-20 over an ls6.
x2^^^
MikesTA2002
10-03-2012, 05:36 AM
Thats a pretty decent gain,I think I got abot 10hp with my LS6.
I have no before and after dyno's just timelips that show I picked up just over a 1/10th in the 1/4.
Old thread I know...
I have a close setup as you how do u Like your obxr's gains after install? Didn't feel like a solid pair of 1 7/8s or anything but definitely worth the price and value... Any issues with yours?
thunderstruck507
10-03-2012, 09:21 AM
I don't get it. I'm more of a best "bang-for-buck" kinda guy so I don't understand why some guys have a hard time justifying an underdrive pulley for 5-10 horses but a FAST setup is considered a good investment. There was a time when people were ridiculed for opting for an Meziere electronic water pump for the mere average of 8 horses at 600-700 bucks but now when someone drops around a grand for 13 horses, everyone pats him on the back?
I understand that the FAST potential opens up with larger cubes, cam, etc., but I am not arguing that. In this case, it didn't seem like a wise mod to do at this stage.
I am not knocking on you OP personally, jus' a rant about FAST intakes' popularity in general.
I agree with you to a point but an electric water pump is a bad example IMO. To me, I do not trust them. Electronic moving parts just don't seem to last as well as simple mechanical ones in my experience.
The other thing being something you touched on...he might have only got 13 hp now, but the way it carries up top will greatly compliment a cam setup. The gains will also improve with a better breathing engine. It's a mod that will continue to show it's worth and it isn't a wear item.
As far as the loss down low, on my car even when it was stock stall I noticed no low end loss but over 3500rpm it was a HUGE difference over the ls1 intake.
The price is high, but that's why I bought used. I have under $600 in my intake and TB not including the money I got back selling my stock intake and the rail/injectors that came with the FAST used.
Goosecaddy05
10-25-2012, 05:20 PM
The fast will gain alot more with h/c, i picked up 41 hp and tq from 4000-6800... Below that got no loss of hp or tq either
MikeWS6
10-26-2012, 03:07 PM
I would def get the 228R cam. That should put you around 380ish with good driveability.
wildcamaro
10-26-2012, 03:41 PM
That's interesting that the peak torque number was higher but looks like you def lost some torque under the curve, like the fast is really peak oriented compared to the flat ls6 intake. I would brt it will be faster on the track but slightly less responsive on the street at lower rpms...it does look bad ass though I will admit
studderin
10-28-2012, 07:49 PM
thats just about the same gains I got ove my LS6 intake with a fast 92/92 setup. 13whp, think 7wtq, I posted that with a BBK testing back to back a few years ago
HCI2000SS
10-28-2012, 07:57 PM
Great thread! I think I should look into a FAST intake with my setup
99camaroSS1521
11-05-2012, 05:09 AM
the 224R and the 228R will both pass emissions and tick has a emission friendly cam too
SERB Z06
01-07-2013, 06:23 PM
I am not looking at peak numbers either - I don't like how he lost torque under the curve.
Most cams are going to make you lose torque down low...is that a stupid mod too?
Anyway...back from the dead because there aren't too many threads on the new version of this IM. Does ANYONE have a pic of this IM next to their stock LS1/6 one?
BlackNiteWS6
05-09-2013, 04:51 AM
I want to be fair about this. But for the cost of this intake plus the TB that you need and the option to get it ported i'm just a little concerned about its characteristics. Now this intake is supposed to have better runners, a better plenum design, and it has a larger TB opening compared to the LS6 intake. When you compare the cost vs power gain things become a concern. From idle to 90mph or mid range the FAST actually makes less HP and TQ compared to the stock intake. Why? The FAST intake according to FAST and the shops who sell them say its a far superior intake than the LS6. So no way should a stock intake out perform an intake that cost as much as a FAST intake. But i have to give credit to FAST because at a little over 90mph or mid-range the FAST makes a strong increase in HP and TQ over the LS6 intake all the way until 6,500 rpm.
Thats the part i like about the new FAST 92. But once you start adding the cost of the intake, a TB you're just about the same cost for a set of ported LS1 or LS6 heads, and about the same price for ARH headers w/y-pipe. Now add in the cost of porting the intake. According to FAST and every place that sells it claims its far superior to an LS6 intake. Yet below mid-range, where the motor spends most of its time, the LS6 intake doesn't have the dip in TQ or HP like a $1,000 intake does. Now in the hands of someone that knows how to port the FAST to reach its full potential and make the FAST produce more TQ and HP from idle to 6,500 or higher i might be able to justify the cost because you're going to get the power that you originally want and paid for. Honestly you don't think that FAST doesn't know that they aren't giving you all the power you paid for? They have engineers that design these intakes, so they know what parts that make up the intake that can maximize the intakes full power potential. Thats why they built the thing to be able to be opened up so porters and speed shops can port them and charge the customer a healthy charge to open the intake and rework the runners, remove any extra material, etc. So now add the total cost...gotta be way over $1,500+ for an intake that needs to be ported properly to get any real gains. Again power vs. cost. it's a cool looking intake but is it worth that much money? And a lot of guys believe that fine tuning the PCM accounts for a good chunk of the intakes gain. With this economy and with slow economies in the past people bought parts that gave them the most performance for their dollar. Yet in this slow economy it's amazing to see guys spending well over $1,400 for an intake that really only shows meaningful gains above mid-range to red line. You can buy HP Tuner, or stainless headers w/cats, and a lot of bolt ons that will give you a lot more gains for your dollar. And it's still funny how guys will justify spending a fortune for a FAST setup yet think its a waste of money to spend $350 to a shop like TPIS to convert the LS6 intake to a larger TB opening when every test proved that the 90mm LS6 intake makes almost the same HP as a FAST yet the LS6 doesn't have the large dip in power like the FAST does from idle to mid-range. So other than dyno numbers and bragging that you have the money to spend $1,500, but there;s hardly a soul that reports that after installing a FAST that they lowered their ET's. And i just don't fully trust dyno results. Shops that sell and port the FAST intake have a motive to sell a product and a service, so they can claim anything they want cause as long as those intakes sit on the shelf they aren't making the money to pay FAST back. But i would like to hear from anyone why a top end intake makes less power than a stocker from idle to mid-range. Thx
HCI2000SS
05-09-2013, 07:41 AM
^^^ Very well said I must say!! The ONLY thing that really deters me from these intakes is the price. The true bang for the buck here just seems out of proportion
redbird555
05-09-2013, 07:47 AM
That post was a little hard for me to read but I think I got the jist of what you're saying. Anyway this is the first dyno I have seen where the fast intake lost torque under a certain rpm. The other dynos I have seen in stock cars are all the same, they sacrifice nothing below 3500 rpm and gain everywhere from there on up which is exactly how FAST designed the intake.
I have seen multiple fast 92 swaps on cts-v's and z06's and even a z28 posted in here not too long ago where they lost nothing low and gained up top over an ls6 intake all on bolt on cars.
Anyway a fast more so a ported one is always going to make more power and torque than an ls6 up top and should equal it down low theres a lot of evidence to support this. Especially with a h/c setup the gains are much more substantial than on a bolt on car.
If you do it correctly you can easily put together a 92/92 for under 1k. I bought a vengeance ported 92 and with a 92mm tb and new dyno tune I'm coming in just under 700 for everything after selling my ls6 intake
Fasts are expensive nonetheless but at a certain point they become the last spot to "free" up hp. People who have a h/c setup are missing out on ~25whp without one and even bolt on guys can gain some by doing a fast. It makes sense for some people obviously. And no offense but I have yet to see a 90mm ls6 come close to a ported fast. If you ever get the chance to see the intakes side by side you will see the difference. The ls6 runners and height look down right tiny compared to the fast runner length.
Besides the point though even if the intake does lose a little below 3500 who's going to notice that? Who races at 3500 rpm? Driving around town no one would notice a 10ft lb loss. As soon as the race starts and you launch into the 4k rpm range youre already making more power and will stay above there when you shift
@HCI I could easily see you pick up around 25 at the wheels with a home ported fast 92. Its pretty easy to go through and port one, you wont have a MAMO port job but you will still see some good gains over a non ported fast.
thunderstruck507
05-09-2013, 08:48 AM
It's not the mod you do before you already have the other things you mentioned. I agree that money is better spent on headers, heads, tuning, etc....but what if you've already done those?
The intake doesn't gain a ton on a stockish car because the stock heads and cam can only flow so much and rev so high. But toss one on a car that needs it and it will pick up more.
It's still not cheap, but for a strong NA build it's part of the game.
Also again, not all cars lose power or have this "dip" you talk about. Not that it matters because if you have a manual trans or a stalled auto you aren't going to see below 3k rpms anytime it matters anyway. (and if you're racing a stock stall auto and spent money on a fast instead of a stall...you quite frankly need a new hobby)
bill 01SS
05-09-2013, 07:08 PM
My 2001 Z28SS w slp headers, cats, muffler, CAI, and MAF made 350HP/370TRQ with a tune. almost done putting on AFR 210cc heads, Crane 1.7s, comp 224/230 .581/.592 114LSA, FAST 92/92, and 36 inj. heads are flowin 293-303cfm from .400-.600, anybody have a similar setup with dyno results? hopin for like 480rwhp, is this a pipe dream, or am i close? im getting mixed answers from diff tuners and gear heads. thx fro ne input.
thunderstruck507
05-10-2013, 09:11 AM
My 2001 Z28SS w slp headers, cats, muffler, CAI, and MAF made 350HP/370TRQ with a tune. almost done putting on AFR 210cc heads, Crane 1.7s, comp 224/230 .581/.592 114LSA, FAST 92/92, and 36 inj. heads are flowin 293-303cfm from .400-.600, anybody have a similar setup with dyno results? hopin for like 480rwhp, is this a pipe dream, or am i close? im getting mixed answers from diff tuners and gear heads. thx fro ne input.
I think your hopes are high. It takes a very well thought out combo and fine tuning to get that high with stock cube ls1.
If 480+rwhp is your goal you should consider:
catless duals or a catless 3" to 4" free flowing y pipe system
1 7/8 headers
large lid setup with SD or large MAF
professionally ported FAST intake
spot on tune
possibly some massage work on the heads
bill 01SS
05-10-2013, 09:15 PM
Damn, thx 507, funds are too low for extra porting this year, when i do stroker set up in a couple of years i guess i'll send the heads and intake out for porting. That Chevelles sweet, big fan. I was tryin same set up as i saw on AFRs site under LS1 article. He claimed 483rwhp w these heads, int, TB, n similar cam. Ill post numbers in a couple of months when im done.
Marc 85Z28
05-13-2013, 01:40 PM
I want to be fair about this. blah blah blah
"Reasoning" like what you posted explains the bolt-on type of performance you're getting from your H/C car. WHEN DRAG RACING low RPM torque is worthless. And about that $1400 for ~15rwhp argument of yours... Do you think aftermarket casting cylinder heads are a similar waste compared to budget ported stock castings?