ChevyRacer

My buddy has a 95 Trans Am T56. He's done a bit of modding but basically its stock.

He has SLP Loudmouth exhaust without cat, skip shift, SLP intake, Spohn supsension mods, dont know exactly which ones though.

Now on my side, when my 355 gets running, I will be putting on my new set of 083's partially ported. With these heads i should have 9.6 compression ratio. My cam isn't too big but isn't exactly small either(its in my sig). Does the job for TPI Quite well. My exhaust is fully custom mandrel dent from the Edelbrock
TES headers, going into a Borla Race Muffler and out two 3" pipes.

My tranny is reasonably new less then 1k miles old. It has Alta Red Racing Clutches, Kevlar bands, Corvette 2000RPM stall, A corvette servo and a B&M shift kit. My rear end slips a bit, but nothing too much to worry about.


Now my buddy can drive a stick, he's not like other people that think they can, this guy can drive a stick very well and is pretty darn consistent as well.

I know howto to launch my 700r4 quite well.


Who do you think would win in this event?

cas0484

Don't quite know what you will run but that Lt1 with those mods should be good for mid to high 13's with a good driver. If he's got headers and some Dr's he could hit low 13's no problem. Should be a good race, let us know how it goes and goodluck!

TexasLT1

your cam looks a little smaller than a Hotcam on duration, quite a bit smaller on lift. It'll definitely be an increase over stock, but even with ported heads, I wouldn't expect much out of that cam. If you wanted to take him for sure, go bigger on the cam and the convertor and have no troubles. If he can drive as good as you say he can, I'd be willing to bet he'd take you. You might get him out of the hole just because of the TPI torque, but even though they're relatively minor his mods will help his LT1 breathe better.

tpivette89

my GFs 94' Formula has similar mods as the guy youre racing: CAI, catback, LCAs, DRs. her car runs consistant 13.3/13.2s at 103mph

im not sure what youre car is capable of, but it better be faster than low 13s if you want to win

ChevyRacer

Well his car is pretty nice. I'd expect low to mid 13's.

I reason i picked such a low profile cam is simply becuase it matches TPI torque range. I can get a larger cam, but tpi would be be hindering performance of that cam.

I still have a very large cam that has 12k miles on it. Torque range on it ends at 6500rpm. I'll use it when i go carb or get a Stealth Ram.

But for right now, i'd only expect max of 350 crank hp, and more relatively 325 crank out of it.

My buddies car came stock with what 275(rated) and with exhaust and intake work, might free up 35-40hp on a LT1. thats about it. So he'd be runnign similar numbers, with a heavier car.

I think it would be very close.

cas0484

It should be a close race, although I think if you go from a roll he should be able to take you. Right when you're running out of breath he'll start pulling slowly.

urbanhunter44

iTrader: (3)

Those ratings are bs.

That car in reality had about 305 at the crank stock, not 275.

Yeah he's running a mid-13 if he can drive. Sounds like you might pull him out of the hole, but then he'll pass you somewhere in the middle/top of second gear.

ChevyRacer

well, seems i'll just have to port the TPI until i get a better intake of go carb with a better intake.

I'm hoping i can get the stock tpi to flow up to 5k, where my shift points are. My 305 would fall on its feet around 4k. So the 350 would start to below that. I think i can get it to work. My heads will be ready to flow 230cfm by the end of the week. My intake, i dont even think TPI can flow 230.

ShiftyCapone

iTrader: (7)

I agree. You have a great start on your combo and a few more things down the road will really wake it up. You are hindered with the stock TPI and chip. You really need to do some chip work to make the most out of your cam. Even though it is mild the prom still needs attention.

ChevyRacer

i dont really see the need to tune the chip if all i'm going todo is either go StealthRam or LT1 later. Sure tuning would wake my engine up very much. But the intake is the complete hinderance.

I wanted to design my own intake. I have a drawing and stuff with short runners and the sorts, but no real way to even create it. Would be a really neat design if i could use it though.

Its sorta like a Lt1 with a removable top, that i designed to look quite interesting.

but most likely i'll end up using the lt1 intake i have around the house, get the smaller distributor, and go from there.

After an intake swap my car will breath so much better and power will increase imensely.

ShiftyCapone

iTrader: (7)

Absolutely but you still want to look into chip work. You have already increased the VE of your engine with the mods you have. speed density systems don't re-learn and hardly adapt at well. Even a simple exhaust change can throw the parameters off int he chip that relly on VE. Your engine will run okay without it now but you are leaving some drivabilty, and power out of the equation. Switching to a better induction as you have planned will require it. You could be adding 30+ hp on top of what you already have. Without the chip work you may only see half of that. Its is very worth considering given the nature of yours mods. You will be happier in the long run and make more

ChevyRacer

See if i change intakes, my cam isnt the best for up high breathing as well. I have another cam hydrolic flat tappet and the lobes all around are still in good condition. It only has 12k miles on it. If i install brand new lifters fro this cam, i'll have to rebreak all of them in, but the cam breathes way up until 6500.

here are the stats of my extra cam,
Duration 234/244 Lift .488/.510

That cam will breath even more air into a short runner intake. adding even more power. If swapped at the same time of intake, power increases should be upwards of 50+ in the higher RPM range, but will drop in the lower ranges. I am still thinking i could buy another cam that peaks at 5500, when my car and tranny could most use it tho.

Tuning is a definate. When swapping intakes and to a larger profile cam, tuning is nothing but required.

92rs85berlintta

iTrader: (1)

I would bet my money on the lt1 powered camaro. Im not sure how well you would hang with him but it sure would be interesting to see. You would need different heads cam and intake just to flow as well as a lt1.