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Stroker ls 776 fwhp, what will rwhp be? What time should i run?

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Old 12-17-2015, 09:00 PM
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Default Stroker ls 776 fwhp, what will rwhp be? What time should i run?

Hey guys,

getting ready to dyno the car(2002 camaro). as a lot of you know the motor made 776hp and a little over 600tq on the engine dyno the dyno was done with 1 7/8 headers and the motor now has 2 inch headers(the 2 inch headers wouldnt fit on the engine dyno)(the build is in this section if you havent seen it) ... im very curious as to what you guys think will make it through the drive train and to the tires.

im looking for at least 600rwhp and hopefully to be in the 9's on the motor before hitting it with a 200-300 shot of nitrous (car is fully gutted, no dash, no heater/ac/ only 1 kirkey seat, no airbags) im guessing its around 3k-3100 pounds but has not been weighed)

DRIVE TRAIN;

TURBO 400 WITH 4200 CONVERTER AND TRANS BRAKE
MOSER 9 INCH REAR END WITH 392 GEARS AND 28X10.5 SLICKS

heres the dyno graph in case anyone didnt see it

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Last edited by Strokedcamaroz28; 12-17-2015 at 11:05 PM.
Old 12-17-2015, 09:04 PM
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583 is my guess with that combo. The slicks will eat some power.
Old 12-17-2015, 09:20 PM
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Originally Posted by DietCoke
583 is my guess with that combo. The slicks will eat some power.
I agree, 580-590ish. TH400, slicks and 3:92 going to cost you some power, especially the TH400. If you could get a TH350 to hold the power, it would cost you less power
Old 12-17-2015, 09:23 PM
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Originally Posted by DietCoke
583 is my guess with that combo. The slicks will eat some power.
I'm with this
Old 12-17-2015, 09:24 PM
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Originally Posted by Millenium Z06
I agree, 580-590ish. TH400, slicks and 3:92 going to cost you some power, especially the TH400. If you could get a TH350 to hold the power, it would cost you less power
Or a glide
Old 12-17-2015, 09:36 PM
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you guys got any times you think it will run on the motor/juice?
Old 12-17-2015, 10:50 PM
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scientific wild *** guess...10.20's low 130mph...3.92 gear is not your friend for n/a times. I bet you run out of track before you run out of rpm, especially where this motor is going to want to rev to.
Old 12-17-2015, 10:56 PM
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If thats the drag bar on the rear end, I don't think thats gonna cut it, with all that power. I suggest getting a much beefier bar or else get ready to TWIST.
Time to dial in on getting the power to the ground.
Old 12-17-2015, 11:03 PM
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Originally Posted by BOLO
If thats the drag bar on the rear end, I don't think thats gonna cut it, with all that power. I suggest getting a much beefier bar or else get ready to TWIST.
Time to dial in on getting the power to the ground.
car has suspension(that panhard bar is wimpy.. its something that hasnt been updated since the car has been sitting so long..

the car has:


90/10 lakewood front struts
competition engineering 3 way rear end shocks
adjustable umi torque arm
lower control arms
bmr k member

has some other stuff that i cant remember at the moment.. car has been sitting for so long i forgot lol
Old 12-17-2015, 11:04 PM
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Originally Posted by HighspeedLean
scientific wild *** guess...10.20's low 130mph...3.92 gear is not your friend for n/a times. I bet you run out of track before you run out of rpm, especially where this motor is going to want to rev to.

i hope i can at least hit 9:90s on the motor... she has always hooked pretty well with the suspension... i forgot to mention i have a trans brake as well
Old 12-17-2015, 11:20 PM
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My Prediction 610 RWHP! 170 FWHP is a lot of driveline loss, and the
2" LTs should add another 12-15 RWHP vs 1 7/8".
Enough Power for 9.90s on engine @ 3100 lbs if the Chassis is set up.
Old 12-17-2015, 11:23 PM
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Converter is too tight for n/a also I think. Seeing as we don't know where peak torque was made, bet you could add another 1000rpm to it and it would get you there. From there, it's all in the chassis setup.
Old 12-17-2015, 11:34 PM
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Originally Posted by Strokedcamaroz28
car has suspension(that panhard bar is wimpy.. its something that hasnt been updated since the car has been sitting so long..

the car has:


90/10 lakewood front struts
competition engineering 3 way rear end shocks
adjustable umi torque arm
lower control arms
bmr k member

has some other stuff that i cant remember at the moment.. car has been sitting for so long i forgot lol
I was referring to the drag bar, not the panhard bar. I would still upgrade to double adjustables in the rear and singles up front such as QA1's. Everything else on your list looks good.
Old 12-17-2015, 11:47 PM
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Originally Posted by NAVYBLUE210
My Prediction 610 RWHP! 170 FWHP is a lot of driveline loss, and the
2" LTs should add another 12-15 RWHP vs 1 7/8".
Enough Power for 9.90s on engine @ 3100 lbs if the Chassis is set up.
yea.. i wanted to try the headers back to back on the engine dyno but didnt get to. im hoping for increased gains as well
Old 12-17-2015, 11:49 PM
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Originally Posted by HighspeedLean
Converter is too tight for n/a also I think. Seeing as we don't know where peak torque was made, bet you could add another 1000rpm to it and it would get you there. From there, it's all in the chassis setup.
i had to find a happy medium with the convertor.. didnt wanna go too big for when nitrous is in use to prevent blowing through it... im hoping the trans brake helps as well
Old 12-19-2015, 10:43 AM
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2" LTs should add another 12-15 RWHP vs 1 7/8".
Sorry to say that the HP will likely be less, not more with a good reduction of torque too!
Old 12-19-2015, 01:37 PM
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Originally Posted by John B
Sorry to say that the HP will likely be less, not more with a good reduction of torque too!
How do you explain all of the back to back test showing that the big headers picked up? Even on stock cube motors.
Old 12-19-2015, 03:11 PM
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How do you explain all of the back to back test showing that the big headers picked up? Even on stock cube motors.
Please show me a back to back test with 2" headers over 1-7/8" with the same collector size where they picked up power with no other changes, especially on stock cubes.
Old 12-19-2015, 04:35 PM
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Originally Posted by John B
Please show me a back to back test with 2" headers over 1-7/8" with the same collector size where they picked up power with no other changes, especially on stock cubes.
This is 427" not "stock cubes" making 775+ FWHP @ 7500+ RPM
I am pretty sure 2" LTs will make more Peak HP 6500-7500+ RPM
LOL without significant torque loss Above 4500 RPM! Vs 1 7/8" LTs
All else equal (primary length, collector, etc.).
Old 12-19-2015, 05:25 PM
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If it weighs 3100, and really makes 775hp at the flywheel, it will run mid nines at 140 + with nitrous gear,converter

If it make 775 f/w hp and along with a loose stall and gears, it should run low 9s at 145 or so on motor

If it really makes 775hp


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