My 2022 gt500 3.8 whipple

12gt500

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So it’s been awhile since I posted, I’ve had my car a few months now and I put a whipple 3.8 blower on there. I was going to trick out the stock blower, but was concerned about IAT2 temps. So I first did it on stock fuel system with injector dynamics 1300x injectors and a 3.75 upper with cat less exhaust. Car made 951 on a 18 inch drag radial with a Lund tune, and I just ordered a fuel system and injector dynamics 1700s. Planning on pulleying down to a 3.00 fully or 3.25, should be making about 1100 wheel. Temps on a wot are 11* car feels like a beast. So far on the 18 inch Mickey Thompson’s car is hooking. Here is a few pics if anyone wanted to see.
 

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Klaus

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Monster. At what power level do you need to dig into the transmission and what needs to be done?
 

TAF

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VERY menacing looking Mustang...you should be proud, thanks for sharing!
 

cobrainfo1

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950whp on the 3.7 pulley on 93 is totally reasonable on a somewhat cooler day 17lbs of boost at 8000rpm assuming 2" headers & no cats for better flow.. probably not in 100 degree weather obviously

My 3.8 whipple on one pulley bigger (less boost) 3.85 made 915rwhp on 93oct...
75 degrees outside when mine was tuned / dyno'd
1030whp on E85 here at 8000rpm peek 16lbs of boost.

My car will be going back sometime sooner than later for the 3.75.pulley. I'd like to be right at or close to 1100whp with E85

Obviously you can make more with this set up pullied down (more boost) but my goals are 1100whp on E85 and one pulley for now.... at that power level I'd like to focus on getting 200lbs off the car and see how she goes. I'm halfway there -100lbs so far.
 

Klaus

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950whp on the 3.7 pulley on 93 is totally reasonable on a somewhat cooler day 17lbs of boost at 8000rpm assuming 2" headers & no cats for better flow.. probably not in 100 degree weather obviously

My 3.8 whipple on one pulley bigger (less boost) 3.85 made 915rwhp on 93oct...
75 degrees outside when mine was tuned / dyno'd
1030whp on E85 here at 8000rpm peek 16lbs of boost.

My car will be going back sometime sooner than later for the 3.75.pulley. I'd like to be right at or close to 1100whp with E85

Obviously you can make more with this set up pullied down (more boost) but my goals are 1100whp on E85 and one pulley for now.... at that power level I'd like to focus on getting 200lbs off the car and see how she goes. I'm halfway there -100lbs so far.

I would be interested in seeing your curve. Can you post it? Thanks
 

biminiLX

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I would be interested in seeing your curve. Can you post it? Thanks
I would like to see it also.
I’d assume peak out at 8000 and lower torque with a pretty serious 6000-8000 powerband.
I’ll look for the comparisons I had from my 5.8 TVS and the same blower on a 5.0 Coyote from the same dyno same tuner same day.
The Coyote made the same peak but 1000rpm higher and about 150rwtq less.
The 3.8 blower on the Predator 5.2 should have a nice dyno graph.
-J
 

cobrainfo1

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For whatever reason I had no tach signal for torque on the dyno..
So what you're seeing are only HP curves
93oct 915rwhp
E85 1029rwhp
 

biminiLX

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For whatever reason I had no tach signal for torque on the dyno..
So what you're seeing are only HP curves
93oct 915rwhp
E85 1029rwhp
They pull a coil cover and clip onto a coil wire when we dyno my ‘14 and I think that’s what I’ve seen on Coyote cars.
Either way great results!
-J
 

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