Forced Induction - STS gains

I have a 2000 automatic trans am what kind of gains can i expect from the sts turbo kits?

for some reason, every STS turbo system i hear has a weird whooshing sound, i'd be careful about it. :)

do a search under the dyno section. typical gains are listed on sts's website... i believe 30% HP and 35% TQ... just apply it to your current numbers

again search... or look on STS's website (not trying to be an ass or anything)

If u are really considering it I would do a full leak down and check everything internal wise u will see around 450-480 on 7-8 psi. bone stock. Im working with a buddy now he is really mad at his results 380 at 9 psi and his motor is stock with a azz load of nitrous runs six speed on a dyno jet.

check my old posts i listed my sts dyno. i didnt like the tune nelsons anyways

If u are really considering it I would do a full leak down and check everything internal wise u will see around 450-480 on 7-8 psi. bone stock. Im working with a buddy now he is really mad at his results 380 at 9 psi and his motor is stock with a azz load of nitrous runs six speed on a dyno jet.


380.... someones got a bad tune in that thing. or else that motor is about to blow up for other reasons

I've never seen an STS car worth a shit around here.

380.... someones got a bad tune in that thing. or else that motor is about to blow up for other reasons


Yeah he lifted the heads on it twice on no2 and it allways smokes on startup and idle and decel :drive: His catch can befor the turbo would fill up in a week. I did a tune up on his car and there was oil all inside the combustion chambers and the exhaust. I told him the motor is bad but its one of those guys that dont listen :( A ricer in a ls1 :jest: j/k eric

I've never seen an STS car worth a shit around here.





Where r u located :chug:

Buddy of mine did 490rwhp on 9psi. Stock bottom end, pace long tubes, ls6 hot cam (switch to a turbo cam after the dyno) ls6 intake.
2000 Z-28 a4

I've never seen an STS car worth a shit around here.

........ its your opinion, this is ls1tech and its public. so i'm leaving this statement alone. But you better watch it.

i wanna here somone who actually has an STS kit to chime in with some #'s

I've never seen an STS car worth a shit around here.

That's cause you havent been smoked by mine yet :lol: :P

Back to the origonal question: There were a few magazine articles on the STS in 2005-2006 (High Performance Pontiac for one) Typical RWHP on a stock car with 5PSI was 390-400 (so, around a 80-100RWHP gain.)

My car personally put down 426/435 SAE BEFORE tuning. It's a good 30-50hp more now. That's also at 5PSI....but intercooled. Mods in sig.

Hope this helps. :)

http://cgi.ebay.com/ebaymotors/STS-Rear-Mount-Turbocharger-Turbo-Guide-LS1-LTI-Camaro_W0QQitemZ170076267601QQihZ007QQcategoryZ342 14QQcmdZViewItem wow 5 bucks huh lol. the add makes it seem like the whole kit comes with lol

nice car Schantin!

my car made 472/501 on 7.5 psi intercooled with fuel and tune. now it makes much more with a little custom turbo cam...... :devil:

http://cgi.ebay.com/ebaymotors/STS-Rear-Mount-Turbocharger-Turbo-Guide-LS1-LTI-Camaro_W0QQitemZ170076267601QQihZ007QQcategoryZ342 14QQcmdZViewItem wow 5 bucks huh lol. the add makes it seem like the whole kit comes with lol

nice car Schantin!

Thanks. :)

I'm runing whats listed in my sig and now that my boost isn't bleeding off I'm making around 500 rwhp and just over 500 rwtq on a dynopack dyno at 8 psi
when boost was bleeding off I was down 4-psi and made 425 rwhp and 460tq.
Also Wrap the Y-pipe back

:) i wanna here somone who actually has an STS kit to chime in with some #'s

My numbers are in my sig. Im waiting on a rear end and meth for 15psi on the 22

my sts kit runs good, my dyno #s sucked but it runs with cars that are making aroung 428 rwhp. they dyno is a dyno jet and i have a stall converter. i was told this is why my dyno #s arent so good??? any way , im taking the long tube headers off this weekend and im installing the stock manifolds back on, wrapping everything from the manifold to turbo, silicone spray on wrap and black heat paint over that, hoping to get boost to come on as soon as possible , retune on feb 9 for 8 psi and see what we got from there.

as far as the guy who has never seen a fast STS car :nutkick:

or should i go with a TSP torquer V.3 & PRC LS6 Head and Cam Package and a 100 shot TNT nitrous kit

or should i go with a TSP torquer V.3 & PRC LS6 Head and Cam Package and a 100 shot TNT nitrous kit

you'll get tired of replacing the bottles and from what i understand, taking a motor that has had N20 run through it many times and then trying to run FI will only yield you :cry: numbers...... i would go FI..... its always there, just my $.02

........ its your opinion, this is ls1tech and its public. so i'm leaving this statement alone. But you better watch it.
:eyes:



















:jest:

The STS isn't the first choice for many looking to make power. Of the results I have seen from other people, certain varibles such as exhaust wrapping, intercooling, and methanol injection can affect the final results quite a bit.

The STS isn't the first choice for many looking to make power. Of the results I have seen from other people, certain varibles such as exhaust wrapping, intercooling, and methanol injection can affect the final results quite a bit.

but thats the same way with any turbo kit, sure a non intercooled STS car is gonna make maybe 400-420rwhp, but for someone wanting to spend 4k, thats an easy kit to start off with. you get the basics and like anything else, you can upgrade it as you go and multiply the power :chug:

Ok, nice DYNO NUMBERS. BUT, why are there not any 1/8 or 1/4 mile times posted? I am very curious since most of the sts guys only post DYNO NUMBERS.

my best time last year without FMIC was 7.66 at 94 mph, there is no 1/4 mile track near here. on street tires

There was a 9psi car that ran a 10.9 a few months ago here on the boards. A basic T67 with FMIC. He has since sold the kit though. It was a red trans am if you search around.

Ok, nice DYNO NUMBERS. BUT, why are there not any 1/8 or 1/4 mile times posted? I am very curious since most of the sts guys only post DYNO NUMBERS.

some of us dont race at the track, i love the fact that i have stock rims and height so people mistake me for being a regular Z28 :devil: and then the whistle comes and they're done :drive:

plus i will admit, with a stock clutch slipping, i ran a 8.4@86 i think, but the car sat too long and the y pipe wasnt wrapped and the turbo barely spooled enough. now i wanna get a clutch and try again with my new cam :devil:

I made 440 rwhp on 5 psi. I had a TR224 cam and Jet hots though. I added meth and turned up the boost to 8psi and ran a 12.0 @ 120 w/2.0 60ft time. The car raceweight is 3800lbs and has 4.11s so the time is a little slow. If you do the calcs for horsepower and weght vs. mph and thats over 500rwhp.

Net HP = Weight in pounds* (Speed in MPH/228.4)^3 = 551rwhp for my car

sweet number enginejoe, gotta rep for the STS. longrange4u went 11.01 with 607rwhp and MT ET Streets, i forgot the boost

i ran my sts turbo formula today and it went 7.7 @96.97 and a 1.99 60 foot with a 200 lb passanger

i ran my sts turbo formula today and it went 7.7 @96.97 and a 1.99 60 foot with a 200 lb passanger

were you a M6 or A4? and what kinda tires where you on?

i think the main problem with STS kits is that people tend not to do it right and see it as a cheap kit....when it all adds up to be close to the other kits...

thats why people have shit talked this kit so much. i have no complaints from mine or the kits, as every kit has something you don't like

How about 7.25@96.6 and 11.35@118.62 in a 4500lb truck.

How about 7.25@96.6 and 11.35@118.62 in a 4500lb truck.


what psi??? nice #s for a truck :drive:

you pay too much for an sts kit to only be in the 400's IMO.

you pay too much for an sts kit to only be in the 400's IMO.

you pay double that for a front mount to get low 500's..... yes you could push the stock bottom end and get over 6..... but to me, i want the stock bottom end to live, otherwise i would push 7.5psi and be mid 500's with a cam only sts car :judge:

what psi??? nice #s for a truck :drive:
12 psi on a 370 and no I/C.

you pay too much for an sts kit to only be in the 400's IMO.

Except for nitrous, how could you get there any cheaper or easier and have the same street manners, gas mileage and cool turbo sounds?

Except for nitrous, how could you get there any cheaper or easier and have the same street manners, gas mileage and cool turbo sounds?

exactly my thoughts.. i have two friends both n/a and they have more in there cars with heads,cam and 90/90 and i walk em both :jest: plus i have room to grow they are running out of things to change -- except the juice :hail:

baby bottle ... got to refill it

My car ran a 7.401 @100 mph w/9psi and a 1.8 60ft. I never had a chance to test it in the 1/4. BTW this is with the stock 60-1 .96A/R.

My car ran a 7.401 @100 mph w/9psi and a 1.8 60ft. I never had a chance to test it in the 1/4. BTW this is with the stock 60-1 .96A/R.

i had the .96 A/R and i switched to the .81 A/R and the response was awesome, i also have the bigger 67 turbo .

i had the .96 A/R and i switched to the .81 A/R and the response was awesome, i also have the bigger 67 turbo .

i have the .96, i wanna try the .81

All You Shit Talkers Go Fuck A Goat

I have a 2000 camaro with a 408,th400 tranny,fmic,and meth inj.Car made 550 horse at 13lbs of boost and was floating the valves.Changed the valves now the car makes 16lbs of boost but is running lean so im redoing the fuel system as we speak.This is with a t-70 turbo STS kit.

Hows the spool with the .96? Ive got a .96 but the car has never seen a true WOT pass. Smoke how much improvement did you see in spool with the .81 (in rough RPM estimates).

Vandal you should be makin a lot more power than that with a 408 at that kind of boost. Get some stronger valves and throw her back on the dyno. You should be seeing 650+ at 16psi.

i had the .96 A/R and i switched to the .81 A/R and the response was awesome, i also have the bigger 67 turbo .

I have a 76 comming in this week but I'm still goanna be running the .96. I want topend power and everybody says the .96 works great at sea level. I get full boost at 3500 RPM's.

I have a 76 comming in this week but I'm still goanna be running the .96. I want topend power and everybody says the .96 works great at sea level. I get full boost at 3500 RPM's.


i love your car :)

i love your car :)

Thank You Sir. I love your car too :wrist:

Thank You Sir. I love your car too :wrist:

ROFL :offtopic:

the difference between the .96 and .81 was where the boost started. the .96 was a lagg hog. but when it came in it stayed especially up top, car had slow track times but was faster through the trap, with the .81 reponse was much quicker, track times picked up but i lost trap speed. i would guess because it was a year and a half ago but somewhere around 300-400 rpm difference in full spool. i also had a 3.73 gear and now im a 3.23 to load turbo.

well i'm going to a 3.42 , i will be having a IC made up custom, and should i go with a smaller a/r ratio(currently the stock STS .96)..maybe go to a .81? mine spools by around 3400 if not a little higher...have to go back home and drive it and see again, lol. its been a while

well i'm going to a 3.42 , i will be having a IC made up custom, and should i go with a smaller a/r ratio(currently the stock STS .96)..maybe go to a .81? mine spools by around 3400 if not a little higher...have to go back home and drive it and see again, lol. its been a while

i full spool by 2800-3000 rpm now i was at 3500 like you, the two fastest STS turbo f-bodies on here are longrange4u and zombie, they both are running very tall gears. thats why i went with 3.23 and it pulls very hard for a long time , keeps turbo loaded up.

the difference between the .96 and .81 was where the boost started. the .96 was a lagg hog. but when it came in it stayed especially up top, car had slow track times but was faster through the trap, with the .81 reponse was much quicker, track times picked up but i lost trap speed. i would guess because it was a year and a half ago but somewhere around 300-400 rpm difference in full spool. i also had a 3.73 gear and now im a 3.23 to load turbo.

Good to know :) I think I like the higher topend and to make up for the low end I might just set the 2 step higher :drive:

Good to know :) I think I like the higher topend and to make up for the low end I might just set the 2 step higher :drive:

i debated on using 2.75's because i do my races on the highway...... but if i ever get the money to get all new clutch and rear, i would go with 3.23's and use a 2 step like you JD_Z28 :chug:

i debated on using 2.75's because i do my races on the highway...... but if i ever get the money to get all new clutch and rear, i would go with 3.23's and use a 2 step like you JD_Z28 :chug:

The 2 Step works great. I know if I went to a good track and hooked up I should be able to cut 7.1-7.2's in the 1/8th, with the new turbo who know how it will do :devil:

If you like highway runs I'de say go with the 3.23's and bigger A/R FTW :)

If you like highway runs I'de say go with the 3.23's and bigger A/R FTW :)

The best for highway is a th400, 2.75 gears and a fairly tight stall. The larger a/r works better with an auto because boost never falls off during the shift.

FWIW my 1/8 mile is 6.7 @ 104 with a 1.58 60' I love the trans brake, 10psi launch. 14psi boost.

The best for highway is a th400, 2.75 gears and a fairly tight stall. The larger a/r works better with an auto because boost never falls off during the shift.

FWIW my 1/8 mile is 6.7 @ 104 with a 1.58 60' I love the trans brake, 10psi launch. 14psi boost.

But wouldn't you run out of gearing? what speeds could you reach with a 3 speed th400? I love my manual gear box :cheers:

i love the 3.23 with my auto.. it has good launch and has legs on the top end. im sure a manual with a 3.42 would be very comparable in drive ratio.

But wouldn't you run out of gearing? what speeds could you reach with a 3 speed th400? I love my manual gear box :cheers:

With my 2.75 gears and a 6500 shift point these are the splits (I usually shift at 6000 though)
1st goes to 70 mph
2nd goes to 120mph
3rd goes to 175mph

So from a highway roll above 55mph I grab 2nd, converter flashes to around 5000 rpms with 14psi, I peddle it until 90ish for traction and I then hold the gear until 110 mph, grab 3rd to about 130 mph, let off and see how far behind me the guy I was racing is.

one shift and I never lift off the gas and boost never drops. I personally feel 175mph is enough top end.

one shift and I never lift off the gas and boost never drops. I personally feel 175mph is enough top end.

Um, Yeah...

With my 2.75 gears and a 6500 shift point these are the splits (I usually shift at 6000 though)
1st goes to 70 mph
2nd goes to 120mph
3rd goes to 175mph

So from a highway roll above 55mph I grab 2nd, converter flashes to around 5000 rpms with 14psi, I peddle it until 90ish for traction and I then hold the gear until 110 mph, grab 3rd to about 130 mph, let off and see how far behind me the guy I was racing is.

one shift and I never lift off the gas and boost never drops. I personally feel 175mph is enough top end.

Nice :cheers:

With my 2.75 gears and a 6500 shift point these are the splits (I usually shift at 6000 though)
1st goes to 70 mph
2nd goes to 120mph
3rd goes to 175mph

So from a highway roll above 55mph I grab 2nd, converter flashes to around 5000 rpms with 14psi, I peddle it until 90ish for traction and I then hold the gear until 110 mph, grab 3rd to about 130 mph, let off and see how far behind me the guy I was racing is.

one shift and I never lift off the gas and boost never drops. I personally feel 175mph is enough top end.

thats rediculous, i like that :drive:

My Car Made 428 Thats Funny Cause We Never Got To Race The Car Still Isnt A Track Car But Im Down Out On The Streets

All You Shit Talkers Go Fuck A Goat

:lol: Now here's a man who should not make a career in politics! :lol: :jest:

the are def some hidden secrets about the STS cars that most people dont know. im gonna stick with it as long as i can

i finally got the car tuned friday at 8 psi the car made 438rwhp and 440 tq with an unlocked converter. should be about 480 rwhp when i get the new converter installed. not to bad for an auto. :drive:

480 seems right on the money for an auto at that psi. hows that 214/230 cam workin out? I think you said its a cheatR cam?

i finally got the car tuned friday at 8 psi the car made 438rwhp and 440 tq with an unlocked converter. should be about 480 rwhp when i get the new converter installed. not to bad for an auto. :drive:

those are good numbers for an auto. i have a "little cam" that doesnt sound mean, but make my car just wanna be in boost almost all the time in a M6

i finally got the car tuned friday at 8 psi the car made 438rwhp and 440 tq with an unlocked converter. should be about 480 rwhp when i get the new converter installed. not to bad for an auto. :drive:

Those are good #'s. If you were a "dyno queen", you could use the laptop to lock the converter right when going WOT on the dyno. It's all about the drivability, though. I'm sure it pulls much harder than those #'s show. :drive: :)

im not a dyno queen or i would never have told ya about the converter :jest: im very satisfied car pulls very hard, more power than i expected . cant wait for it to warm up.

i had originally planned to swap out the cam , but.... i dont see any reason to , it has great dd manners and put good #s down. :)

i finally got the car tuned friday at 8 psi the car made 438rwhp and 440 tq with an unlocked converter. should be about 480 rwhp when i get the new converter installed. not to bad for an auto. :drive:

My car made a best of 470 RWHP / 515 SAE corrected on 14psi with an unlocked converter. I'm way out of the ballpark for normal dyno numbers though LOL.

My car made a best of 470 RWHP / 515 SAE corrected on 14psi with an unlocked converter. I'm way out of the ballpark for normal dyno numbers though LOL.

you have less power than i do and you would wax me at the track like crazy. i wish i could run another STS auto around here, theres only 2 around here and i'm 1 and the other is also an M6 :bang:

im thinkin about throwing one of these kits on my car... im a big camed auto.. 236 242 601 610 are my cam specs.. the car runs great the way it is i go 7.1s at 96 with a high 1.5 60' on a 50 shot and a 7.4 at 95 with a 1.6 60 on motor' ive got a 3500 stall do u guys think i could boost with this cam??? i put down 400 n/a unlocked.

im thinkin about throwing one of these kits on my car... im a big camed auto.. 236 242 601 610 are my cam specs.. the car runs great the way it is i go 7.1s at 96 with a high 1.5 60' on a 50 shot and a 7.4 at 95 with a 1.6 60 on motor' ive got a 3500 stall do u guys think i could boost with this cam??? i put down 400 n/a unlocked.

i dont think that would be the "optimal" cam for an STS car, just my .02

you have less power than i do and you would wax me at the track like crazy. i wish i could run another STS auto around here, theres only 2 around here and i'm 1 and the other is also an M6 :bang:


this is why I am second guessing my sts kit. Your making 500rwhp.. You should be in the low 11's n/a or with nitrous making that power.

I will be shooting for 600-650 with my sts kit and trying to hit high 10's.. With nitrous I know I could hit low 10's... Ill give a little to have the power always there but if I only pull out some 11's like a lot of the 600hp cars I have seen ill be pulling the kit off.

this is why I am second guessing my sts kit. Your making 500rwhp.. You should be in the low 11's n/a or with nitrous making that power.

I will be shooting for 600-650 with my sts kit and trying to hit high 10's.. With nitrous I know I could hit low 10's... Ill give a little to have the power always there but if I only pull out some 11's like a lot of the 600hp cars I have seen ill be pulling the kit off.

but you have an auto and i have the M6, i will naturally make more power but im trying to use mine for something different :secret2:

I'm hoping for around 430RWHP on my GTO. GT-67, FMIC, methanol, 5psi. Already have Kooks long-tubes on the car.

I'm hoping for around 430RWHP on my GTO. GT-67, FMIC, methanol, 5psi. Already have Kooks long-tubes on the car.

LS1 or LS2?

LS1 or LS2?
LS1. I know my expectations are a little high but I think it's capable.

LS1. I know my expectations are a little high but I think it's capable.

i dont see any problem with that power goal, especially with the FMIC and matching fuel. my LS1 made 472/501 on 12.0 AFR with stock internals

i dont see any problem with that power goal, especially with the FMIC and matching fuel. my LS1 made 472/501 on 12.0 AFR with stock internals
Those are good numbers. I actually don't want the car too make that much HP just yet. I'm still on stock suspension and tires, it'll do nothing but spin.

Those are good numbers. I actually don't want the car too make that much HP just yet. I'm still on stock suspension and tires, it'll do nothing but spin.


and break your tranny!! thasts already happened to me... :(

Those are good numbers. I actually don't want the car too make that much HP just yet. I'm still on stock suspension and tires, it'll do nothing but spin.

i only race from a roll, so my rear is fine, the only thing i've broken recently was my clutch :bang: ...... but it lasted through my 460rwhp+ for almost 1 year of me racing from rolls...... then 1 week after i put the cam in, she went down :bang: