ss.slp.ls1

iTrader: (36)

1969 Firebird: 12.29@115.78 mph on street tires with a fine 2.01 60ft time. 6.0 LQ4, L92 heads milled 10.8:1, L76 intake, 90mm Holley TB, 85mm MAF, 39lb SVO injectors, custom Comp cam (222/238 duration, 581/605 lift, 114+4) Hooker LT, PYPES dual exhaust with an X pipe, 4L60e with all of the good parts inside, TCI 3500 Super Street Fighter TC, 12 bolt with 3.73 gears. HP Tuner tuned. 3700lb race weight.

Any guesses?

03 BUSA

iTrader: (25)

I would post this in the racer's lounge section for a better response.

ss.slp.ls1

iTrader: (36)

Will do, thanks.

Mods, if this is not suited here, sorry, go ahead and move it.

forcd ind

iTrader: (7)

if i look at the power cal., 116 MPH @ 3700 lbs comes close to around 440 HP
range, fig a 20% loss to the rear wheels, around 352 to the rear wheels
fig with a better 60', you could get down in the 11.6-.8 range
just all based on formula though

ss.slp.ls1

iTrader: (36)

I thought most of those calcs give actual horsepower to the wheels and you'd have to add ~20% to get the hp at the crank?

Either way, that's not as much power as I was hoping that engine would make.

69LT1Bird

iTrader: (1)

This is pretty entertaining. It did 390 rwhp running bad on the dyno already so his calcs are off.

Geez, if your gonna use my car you may as well have all of the data, here is the HP Tuners log and time slip. You can see where I didn't go WOT for the first 3.3 seconds of the run do to running street tires.

ss.slp.ls1

iTrader: (36)

Just trying to get a ball park idea of what those mods, and a similar cam (), will make for my buddy that wants to swap in a L92/LQ4 into his car.