Quote:
Originally Posted by armstrom
Thanks for the info. That's indeed an impressive torque curve! What other mods do you have? Presumably this was a built engine. Lower CR? E85? Do tell 
Why the 6758 over the 7163? Also, was this a twinscroll or single scroll? I like that treadstone has an EFR kit for substantially less than Full Race.. but as far as I can tell they don't offer a twin scroll option.
My ideal setup would be a very low front-mount EFR twin scroll with internal wastegate and an air/water IC in front of the engine (see the coyoda setup) using the mechanical oil pump... but no one seems to offer such a thing  |
Yup - built bottom end with lower CR dished pistons, rods, bearings and studs. Also an OS Giken twin disc STR clutch and an Xforce dual tip 3" exhaust. ID 1000 injectors, Fullblown rails, return system and Walbro 465 pump kit. Tuning, install and flex fuel kit by DD Performance Research. Also has an oil cooler and remote mounted filter. This tune in the video is the E85 tune. We are also using a 2 port actuator for the internal wastegate and a 4 port mac valve to control it.
The original goal was only 350 wheel for daily driving on 93. Wound up able to make well over 400 on 93, but dialed it back to about 380 wheel and we are using the ecutek boost control to raise the boost a bit on E85. Also have a detuned map for daily around town which has pretty scaled back boost in 1st and 2nd for traction reasons.
This turbo is twin scroll, and was picked because again - we were only wanting 350 wheel on pump with a very fun streetable setup. Wound up able to make a lot more than that, but we wanted fast spool with minimal lag, and this setup really delivers on it. We have done an STI fullrace kit with the same turbo and it has similarly impressive torque curve and power production.