Zigroid

That would have made a little more power if you wound it higher, it didn't look like it peaked yet.

thats 300 wtq, not hp. hp was 258.48. strong runner, thats for sure. do you have track times on it?

Jazsun

Ya those are all wrong. GM underestimated all their motors. The LT1 is probably more like 300 bhp from the factory and the LS1 350bhp. Take a look at the corvette LT1...4 bolt mains and they said it put down 300 bhp.

LSWHO

231/270 with a bad o2, unknown state of tune, plugs, wires. 97 a4. Pathetic, I know. But that's what mods are for. This same motor ran 13.0@108ish with 1.7s LTs and DRs.

4U 2 NV

if it helps..my LT1 with SLP TOTL only made 248 RWHP and 277 RWTQ..it was an a4 also

LT4 Formula

It might have made a bit more power with some more rpms, but the person that originally bought the car didn't spend the money on the 245/50s and just got the 235/55 tires. That came with the speed limiter. Couldn't wind it any faster at the time. We tried running it in 3rd on the dyno, but the numbers just didn't look right. It wouldn't have peaked much higher than where it was.

I never did run it at the track stock and when I ran it with just a CAI, I was still learning how to drive at the track. Spun the tires more than anything.

'94 Bad A Z28

Not stock but when my car had a Flowmaster muffler, a SLP CAI, and a 2800 converter it dynoed 262/292... if I remember correctly that was with like 20% converter slip. Then the same day on a NX Wet 100 shot dynoed 364/430.


I remember watching horse power tv a long time ago, probably about 6 or so years ago, and the got a hold of a bone stock automatic '94 Z28 to throw some bolt-ons on and see what it did. They did a base line dyno and the car dynoed 225rwhp and I don't remember exactly what the torque was, I think it was something like 255rwtq.

6SpdLT1Z

97LT4SS

For comparison sake my LT4 put down exactly 299 RWHP stock, don't remember the Torque figure. Unfortunately, I'm still having MAF issues so I still haven't driven the car this year.

94TEALz

I got 294 on my full bolt on car through an auto. This was on a shotty dynojet at the local community college that my 97 jeep cherokee laid down 143 rwhp on a 33 inch tire So given the classic nature of the dyno and the sweet noises the bitch made im gonna have to say it wasnt spot on.

Zeueses 97 RamAir

At 70k plus with HPP Holley 52mm tb borlas catback my 97 m6 ws6 made 291hp and 328 pounds torque. Then when took the HPP off I made 280 exactly just what HPP claimed 10 hp increase. Then at exactly 82k I put longtube headears tune and no cats, 308hp 338 pounds of torque. Now I have new opti 1.6 gm roller rockers and new water pump, im saying guessing 318 320 to wheels.

pologreenZ

thats tq numbers dark blue rwhp 255

MadMike 97 Z28

my 97 Z made 276 rwhp and 317 rwtq with 112,000 miles and only mod that would effect HP was a K&N CAI this was with a M6

ChevalierSS

Torque curve: flat
HP curve: positive slope

sleeperLT1Z28

There are almost too many variables here to accurately compare power numbers. The biggest one I see is what kind of dyno is used. Dynojets always read higher than Mustangs. We have a Mustang dyno at work, and my car put down 261 hp and 280 ft-lbs torque with LT headers, air intake, and tuning. The other thing to keep in mind is that the factory ratings are FLYWHEEL horsepower, not REAR WHEEL horsepower. 93s are rated at 265 fwhp, which would be somewhere around 220-230 rwhp stock.

brain

My 94 made 260 rwhp on a dynojet, bone stock. It ran 13.8 @ 101 in SC heat in the summer at a raceweight of 3750. It made 300 RWHP on the same dynojet (different day) with Hooker LTs and a CAI. It ran a low 13 @ 106 same conditions and weight.

FWIW, when the car was an auto, it went 14.3 @ 97. That auto sucked up a good bit of power, and 2.73s were poo.