opinion: sr vs trans am

[drftsx]

Well i have a friend that is always tryin to talk smack on imports. I have respect for both muscle and imports. I have a sr with fmic, t28 @ 7psi, 3" dp, 2 1/2" exhaust, step 1 hks cams, and a walbro fuel pump. My friend has a ls1 trans am auto completely stock. I just finished the car, so he called me out. Id like to know what are the chances of me winning? I know the trans am is one hell of a car , and drivers do play a role in the race. Just wanna show him that imports can be just as bad as muscle.

[boro drift]

If you're car is running tip-top, I'd say your chances are good. Power to weight will definitely be on your side.

[LeroyBrown]

Im in the same predicament as you, Im racing this WS6 this weekend. All he does is trash talk on imports with his stock T.A.

For a little more speed, when i race him. Im going to take off my door panels, back seats and passenger seat and run with a almost empty tank and take out my spare.

[Onizuka]

If you've got crappy tires and an open differential, your probably going to get wrecked.

[Mistaken]

Depends on how good of a driver you are, how good of a tire you have, and if you have a lsd or not. Stock ls1 trans ams run around a 13.6. There is a guy running a bolt-on only sr20det on this forum that was running i think 12.8's. Run some more boost with that t28, get a 3 inch catback and you should be putting out as much if not more rwhp then that stock trans am and will have 1000lbs less.

[drftsx]

My friend just has no respect for imports, although hes been beaten by them. Leroy gl on racing the ws6.

[hsckris]

Stock ls1 trans ams run around a 13.6.

I've know a guy with a nearly stock (I'm talking only intake, headers and a clutch) LS1 T/A, he runs consistent mid 12s. While it is a 6spd, I doubt intake/headers picked up a full second. Depending on driver, on a car like the T/A auto v. stick doesn't matter as much as you think. In fact, some domestics can be faster with the auto in a drag.

[Mistaken]

A 6spd with a good driver will run a lot faster then a stock stall converter automatic, also you would be surprised what kind of numbers you can pick up with a good set of headers. The stock stall is pretty tight depending on what gear ratio you have, its pretty tough to cut a very nice 60 ft time with a stock stalled t/a. Just my .02 cents having been around f bodies for a decent amount of time.

[drftsx]

i have a welded diff. my tires still have 75% thread on them although there 205s its not that bad. how much boost will my car be able to handle i have stock injectors, and a stock maf dont wanna blow anything up.

[hsckris]

A 6spd with a good driver will run a lot faster then a stock stall converter automatic, also you would be surprised what kind of numbers you can pick up with a good set of headers.

Headers can pick up a good bit, but a full second? I don't think so.

Regardless... on that particular car, the auto v. manual doesn't make that much difference. I was really into these cars back when they were out, IIRC times were almost identical in most cases.

Either way -- she should be able to give him a good run -- based on previous posts she is probably 13ish.
Modified by hsckris at 7:13 AM 1/29/2009

[Mistaken]

Eh i wouldnt turn it up, get yourself some injectors, a z32 maf, and a rom tune or something. Its always better to be on the safer side with a fuel system.

[slow s13]

what kinda of launches are you cutting if your above 2 seconds in the 60 foot id say you have no chance if the above ta times are correct. with steet tires (falken rt615) and 2.2 60 foot I got a 13.9 with turbo back zaust and fmic 13lbs on t25

[nzmoman]

A t-25 SR car with the proper build can beat a trans-am. I had a friend who had a 2002 firehawk and I could take him with bolt-ons. He had a 13.2 time slip on street tires. I had a gutted rear and traction oriented 240. I could put 1 or 2 lengths on him at 12-14 psi...he would inevitably pull on me in the 90 mph range.

He added a full exhaust, a cam, a new rear end, and put the car on the diet and we were neck and neck until he would pull on me at about 70 ish. Little bolt ons on a torq 5.7 liter will make a difference.

you car would need to be purpose built. It is very possible, but even going from a 3 inch to a 2.5 inch pipe in your exhaust will make a little difference.

[drftsx]

Well raced him tonight. Stupid camera had full memory, sorry couldnt show you guys. We were neck n neck til i say about 80-90(tach doesnt work). Once that Trans am roars...man he just passed me up like nothin. The distance was about 5-6 telephone poles. I knew that thing was fast, just didnt know how fast it actually is. I know its runs in the mid to low 13s stock. Planning to take both cars to the track in feb. gotta get 235s for the rear for a more traction. Didnt wanna turn up the boost because i didnt have the supporting mods. Winning a race isnt worth blowing up the motor. He probably has about 50+hp on me. I wasnt expecting to win, just wanted to see where i stand. This is my first race after finishing up this swap, im basically happy with how it performed tonight. Hopefully i can get bigger injectors, maybe even bigger turbo, z32 and a tune. A 12s car is enough for me. Thank you all for your inputs.

[CoupedUp]

Well raced him tonight. Stupid camera had full memory, sorry couldnt show you guys. We were neck n neck til i say about 80-90(tach doesnt work). Once that Trans am roars...man he just passed me up like nothin. The distance was about 5-6 telephone poles. I knew that thing was fast, just didnt know how fast it actually is. I know its runs in the mid to low 13s stock. Planning to take both cars to the track in feb. gotta get 235s for the rear for a more traction. Didnt wanna turn up the boost because i didnt have the supporting mods. Winning a race isnt worth blowing up the motor. He probably has about 50+hp on me. I wasnt expecting to win, just wanted to see where i stand. This is my first race after finishing up this swap, im basically happy with how it performed tonight. Hopefully i can get bigger injectors, maybe even bigger turbo, z32 and a tune. A 12s car is enough for me. Thank you all for your inputs.

You're probably around 230WHP at most.

I ran 13 PSI on a Bolt-Ons S14 SR and made 273WHP, I ran a 13.01 @ 110 on stock 195 All Season, so with some decent tires I think I could have tipped a 12.8.

[drftsx]

Nice. Hopefully i can get around there soon. Now theres a d16-t thinking they can beat a sr. Unless that d16 is built id say he has no chance.

[LeroyBrown]

you should of won, i know i am. i beat 6.0 gtos. so im pretty sure ill beat a stock trans am.

my mods list.

1. GT28 turbo2. intake3. side mount intercooler4. act clutch5. 10 psi of boost

[drftsx]

Post up your results here after uve raced the ws6

[LeroyBrown]

Post up your results here after uve raced the ws6

i will for sure, BTW are you a boy or a girl? i was just wondering because your avatar picture.

[drftsx]

lol im a boy. thats just my girl in the avatar. Hopefully you can get a vid of you guys racing.

[RPS13 DRIFTER]

i dynoed at 273 and im side by side with a trans am with bolt ons that dynoed 330 wheel

[drftsx]

what are your mods?

[RPS13 DRIFTER]

FMIC 3 inch turbo back lightweight crank pulley cp pistons 20 over cosworth headgasket arp studs crower stage 2 cams T25 on 13 psi,i beat evos with bolts ons too ,and the dyno numbers are with a cat on its off now so i know its higher,273 wheel and 288 LBS

[drftsx]

nice!!!!!!!!!!!!!!!!!

[S14toRPS13]

I see you're from Stockton. You ever see a green S14 with a S15 front end conversion. That's my old car. Sold it to my nephew years ago though.Anyways, you're motor will be able to handle a lot more than 7 psi. My nephew pushes about 12 psi daily and sometimes even 16 psi on his bone stock SR with S15 turbo. The only supporting mod that he has is a walboro 255 fuel pump. It's been running great for about 7 years now without any issues.I forgot to mention. My SR with all stock internals was handling 21 psi with a HKS GT2530. I have the supporting mods with a tune though. The turbo eventually blew, but the motor is still fine and running with a GT2871R now. So these motors can handle quite a bit of stress.
Modified by S14toRPS13 at 4:09 AM 1/30/2009

[drftsx]

Yes ive actually seen the green s14 with s15 conversion. has a fmic and bodykit. Ive seen it at autosport. I live around there so i pass that crappy place everyday. Alright i guess i can up the boost a little throw on some fat tires and try again. This time at a real track.

[LeroyBrown]

So i Raced that WS6 this weekend. he has a I/H/E he was only ahead of me one car. he supposably does a 13.2 at the 1/4.

I Guess my car just runs real good.

[S14toRPS13]

Yes ive actually seen the green s14 with s15 conversion. has a fmic and bodykit. Ive seen it at autosport. I live around there so i pass that crappy place everyday. Alright i guess i can up the boost a little throw on some fat tires and try again. This time at a real track.

Yeah, my nephew is friends with the owner of Autosport. I feel bad for my old car as it seems more like a beater these days than anything else. When the car was mine, nobody touched it except for Henry at Motorsport Dynamics in Sacramento. I don't care what anyone says, that was the place back in the day.

7 psi, isn't going to cut it. It might put you close to LS1's, but not enough to beat them. You'd have a real good chance to beat stock Mustang GT's though. Unless your engine is falling apart, 10 to 12 psi with a fmic and walboro fuel pump is plenty safe on a SR. Should be enough to even out the race and possibly even win too. Once you up the boost, you'll never go back to 7 psi.

[drftsx]

Nice. ill be hitting the 1/4mile late feb ill post up vids and the time

[drftsx]

Ive been able to pull on the newest model mustang gts, when i had a t25 at 8psi and stock cams. I say i couldve won he ta if i had a better launch. It was either too much or too little. Ill be getting wider tires for 1/4mile. Yeah that s14 sure does look like a beater. In my opinion that autosport shop is a pos shop. So why did you decide to go with a s13?