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Drag valve on IATs stay high 40s low 50s

Got one from Beefcake for my Roush set up and now on my Whipple car. I can confirm IATs stay in the 60s in the 90 degree heat.

Go fuck with your shit Blower and stock exhaust and chase 5whp.

I have shared many Dyno pulls on this forum. Before after results. What have you contributed?

Why don't you make changes and pay for Dyno time and answer your own question?

I made 940whp Catless LTH into stock catback with resonator deleted.

3.8 Whipple 3.5 pulley 18-19 PSI Boost Stock Gen 3 Engine. Catless LTH 3" Cat Back 953RWHP

Wish I did a before and after. That's the question I keep going back and forth with myself.

Final Dyno sheet. Car makes great numbers on a stock sealed Engine. Waiting to confirm Air load (think its 2.2) and IAT2s, as the car has an interchiller installed. I do believe the Dyno Boost Ref is off. PD blower is not making 953whp on 15psi boost. @DRP Motorsports went above and beyond...

I spoke to a few people that have the 3.8 Whipple kit and know it well. 3.5 pulley makes 18-19psi boost with a stock lower. With the tune not 100% done. Looks like we are heading to 18-19 psi Gen 3 numbers.

Also Poted 103TB 2.7 pulley DRPMOTORSPORTS tune. Car made high 930s to low 940s WHP.

Blower wouldn't make more than 800whp unported on a 2.7 pulley. Unported the blower liked slower speeds and a 2.8 pulley make a bit more power than the 2.7. 103 TB inlet outlet ported blower will make 17-18 psi on a 2.7. Portered I started with a 2.6 pulley. Blower speed was to fast and made...

Also- Roush 2.7 pulley is stock cat back. Whipple 3.8 is full 3 inch cat back. Still making 922 on 14.5 is pushing turbo numbers.

Need to find out what 3.0 kits are making on 14.5psi boost. My thought were gen 3 engine on 16psi boost makes around 900whp.

My guess is 3.8 makes more power with less boost. 922whp on 14.5 is very efficient numbers.

Got a great deal on a 3.8 kit. I just thought at any given pulley size the 3.8 kit would make more than 1 psi boost more than a 3.0 kit.

3.8 Whipple

Plan is new Short block next year and more boost.

I recently pushed a Roush 2650 to the limts. Ported inlet and outlet let 103mm TB on a 2.7 pulley. Car made 17lbs Boost and 940whp. Sold the Roush to a member on here and installed a 3.8 Whipple. Had read that a 3.5 pulley would make 19-20 Psi boost on a stock lower. Thats not true in my...

Car will be ready for the dyno sometime next week. It's been a slow go. Had the 10R80 built Alum. Drive shft, 3 inch Exh. And 3.8 Whipple on 20lBs boost. The Roush 2650 was making 17psi boost.