How much power do I have?

[93formulalt1]

I don't want to try to get my car on a dyno, but I want to know about what kind of power it's going to make after I swap over my parts.

1993 Formula Firebird LT1
Stock HP Rating=275hp@5500 RPMs
Stock TQ Rating=325lb/ft@6300 RPMs
Stock 0-60=5.6 Sec.
Stock 1/4=14.1@98mph

Mods:
Flowmaster 80 Series single in>dual out
K&N Air Filter
Poly Trans Mount
Aluminum Driveshaft, about 11lbs, stocker's about 24lbs, I think.
Mobil One High Mileage Synthetic Oil
NGK Platinum Plugs
Accel Plug Wires

Otherwise, it's bone stock and has been babied all it's life. I don't want any overly dramatic posts about "Driveline Loss due to Mileage" Just tell me approx. what my car has right now, I want educated guesses for HP, TQ, 0-60, and 1/4 mile. Any guesses are welcome, I'm looking for the power ratings at the rear wheels AND at the crank, so if you have an idea of what a stock 93 LT1 runs HP-wise at the wheels, post it up.

Here's my estimate:
HP(crank):approx. 285hp
HP(RW):approx. 255hp
TQ(Crank):approx. 330 lb/ft
TQ(RW):approx. 300-305 lb/ft
0-60:approx. 5.3 sec.
1/4:approx. 13.9 @ 100

Am I too optimistic? Too conservative? I would go out and time my 0-60 time myself, but I haven't done all of this work yet, I'm doing an oil change and tune up next Friday after I pick up my check, and the driveshaft is going in probably Monday or Tuesday of this week, I need to find time to swap it in from the 'maro. Also, the trans mount will be installed at the same time as the DS.

Also, if you guys could give me an idea of what it would take to get this car in the 325hp-350hp range to the wheels, about 375-400 lb/ft, that would be awesome. That's basically my goal, but if it's going to take too much work, I'll settle for something less. Thanks in advance, guys!

[93formulalt1]

Man, I'm such a whore this thread was bumped out of the top 15 before anybody even responded!!! lol

[93formulalt1]

Does ANYBODY have any idea?

[JoeliusZ28]

if that car is in perfect tune you estimations are realistic, i would say youre rear wheel numbers are optimistic for an auto though. Remember autos dont dyno as high.

If you want 350 rwhp with an automatic youre gonna need longtubes, and a milder head/cam combo. plus everything to go with it obviously.

Also for what its worth im estimating my car to have about 285 at the wheels right now with headers and a 6 speed. Im sure people will call me out on that, but that is my estimation because of the quantity of LS1s I have been an even match with.

[MattODoom]

Also, if you guys could give me an idea of what it would take to get this car in the 325hp-350hp range to the wheels, about 375-400 lb/ft, that would be awesome. That's basically my goal, but if it's going to take too much work, I'll settle for something less. Thanks in advance, guys!

Port work / bowl blend, valve job. Ported intake, big cam, long tube headers... etc.

Maybe just an LT4 conversion with a bigger cam or something

[93formulalt1]

What would be a realistic goal for just bolt-ons and a set of heads or something?

[MattODoom]

Maybe just throw one of deez on there:



That's a bolt on.

[JoeliusZ28]

IMO do a cam before heads, unless you want perfect driveability more than the hp. My goal is 350/350 at the wheels with a 224/230 cam. do i expect to hit that? no. realistically ill probably be about 335-340

[93formulalt1]

Well, this car is my DD, so I am aiming for more driveability, but I've also been looking into the Powerdyne kit and running about 4.5 PSI on top of some other mods. . . Should be fun . . .

[JoeliusZ28]

driveable power is more expensive, just remember that before you start modding.

[93formulalt1]

Yeah, I know, that's why I'm starting to think that about 325 RWHP might be a better goal for me.

[JoeliusZ28]

325rwhp is more than you think with an auto. id say thats a 12 second car.

[93formulalt1]

325rwhp is more than you think with an auto. id say thats a 12 second car.

I could live with 12 seconds. What do you think it would take to get me over 300 hp? I was thinking long tubes, ram air hood with the airbox and everything, cutout, a tune, and some gears would get me into the low 13's. Is that realistic? I've got 3.23's in it now, just the stock gears, but I can get a low mileage 10 bolt with GM STOCK 3.73 gears for $350, then turn around and make some of that money back out of my stock rear. Good idea?

[97rs4life]

nitrous and you can meet all your goals.

[JoeliusZ28]

ram air hood is a really expensive CAI.