1983 Oldsmobile Cutlass Supreme Sedan LS Turbo Build

Northernregal

Sloppy McRodbender
Supporting Member
Oct 24, 2017
3,125
113
Red Deer, Northern Montana territory
Track will tell the true numbers, but it made 500+ whp, 600+ ft-lbs thru an unlocked TH400 and Ford 9” rear end IN SECOND GEAR 👀

Also made 18 dyno pulls and it didn't blink an eye :D
Fixed that for you....
 
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Tony1968

Royal Smart Person
Supporting Member
Jul 1, 2018
1,855
113
NW Indiana
I don't get it...? Why would it be in 2nd gear?
And if it was I believe that scews the numbers obtained
 

GroceryGetter83

LS Mafia
Supporting Member
Thread starter
Sep 18, 2018
588
93
Tampa, Florida
I don't get it...? Why would it be in 2nd gear?
And if it was I believe that scews the numbers obtained
With my 3.25 gear ratio, the top of third was going to be nearly 180 mph wheel speed
 
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Northernregal

Sloppy McRodbender
Supporting Member
Oct 24, 2017
3,125
113
Red Deer, Northern Montana territory
True true. Not sure how that helps or hurts lol

I don't get it...? Why would it be in 2nd gear?
And if it was I believe that scews the numbers obtained
I believe Tony is right, I remember something about this in my hours of mindless youtubing.


Spongebob Squarepants GIF

Maybe you should send me some tunes or datalogs or whatever.... So I can peek up her skirt, so to speak. lol
 
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Northernregal

Sloppy McRodbender
Supporting Member
Oct 24, 2017
3,125
113
Red Deer, Northern Montana territory
Understood. However being in 2nd at 1.48 to 1, isn't the rwhp/rwtq going to be off? By a lot? Being that gears are torque multipliers and all.
😆
In theory it would look like this "diesel Volkswagen" dyno result... ;) ;) ;)
648752120.jpg
With massive torque that was higher than HP, like skewed by like 100hp.... Allegedly....
 
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GroceryGetter83

LS Mafia
Supporting Member
Thread starter
Sep 18, 2018
588
93
Tampa, Florida
Understood. However being in 2nd at 1.48 to 1, isn't the rwhp/rwtq going to be off? By a lot? Being that gears are torque multipliers and all.
😆
We did some wheel speed calibration to match the rpms of the tires to the dyno itself
 
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64nailhead

Goat Herder
Supporting Member
Dec 1, 2014
4,773
113
Upstate NY
If you can get it to hook, then you’ll know what it’s doing imo.

Well cooked tires, half *ss prepped track, 16 psi in the Mickeys and 8 degrees on the hit is what it took for me. At 10 degrees I couldn’t get traction.
Refresh my memory, 275/60R15’s on the rear?

Tony is correct. 2nd gear pulls will joy give the same result as 1:1 in 3rd gear.

Good luck Chris - hope to see some results!!!!!!
 
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GroceryGetter83

LS Mafia
Supporting Member
Thread starter
Sep 18, 2018
588
93
Tampa, Florida
If you can get it to hook, then you’ll know what it’s doing imo.

Well cooked tires, half *ss prepped track, 16 psi in the Mickeys and 8 degrees on the hit is what it took for me. At 10 degrees I couldn’t get traction.
Refresh my memory, 275/60R15’s on the rear?

Tony is correct. 2nd gear pulls will joy give the same result as 1:1 in 3rd gear.

Good luck Chris - hope to see some results!!!!!!
275/50-15s in the back
 

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