DeMan Motorsport

DeMan Motorsport 4.0L GT4 is complete and dyno tested!

UPDATE 2/24/16 - Continued tuning to the ECU and other developments were dynod yesterday on our 4.0L engine package in our GT4. Attached is the latest dyno sheet. Testing short tube (red) vs long tube (green)header. 410HP and 345FT/LB at the wheels!




12/14/15 - First Test - 403HP at the WHEELS! and 340FT/Lb of TQ at the wheels!

Given an average and arguable percentage loss thru the drive train of between 10-12% we could say we have the GT4 4.0L with 450+ HP and 380 TQ!






DeMan Motorsport 4.0L GT4 Stage 1 in RED compared to Stock 3.8L GT4 in GREEN. It consists of 4.0L stroker kit, 82mm Throttle body, Headers and appropriate DeMan Motorsport in-house tuning on our Dyna Pack dyno.

Joe Weinstein

Dyno graphs?

Winegums

Is this only available to GT4 engines or could this be done to a Cayman GTS?

PCA1983

Or a 981 Cayman S?

DeMan Motorsport

This can be done. Feel free to reach out for more info.

DeMan Motorsport

Yes, this can be done as well.

ChrisF

When will there be a proof of concept?

Rick DeMan

GT4 4.0L has been Dyno tested and driven!!

Results and Dyno sheets coming soon!

DeMan Motorsport

DeMan Motorsport 4.0L GT4 is complete and dyno tested!

403HP at the WHEELS! and 340FT/Lb of TQ at the wheels! Dyno sheet attached to the first post.

altonj

nice

DeMan Motorsport

Continued tuning to the ECU and other developments were dynod yesterday on our 4.0L engine package in our GT4. Attached is the latest dyno sheet. Testing short tube (red) vs long tube (green)header. 410HP and 345FT/LB at the wheels!