Best EFI harness and ECU for LS transplant.

[gnx7]

To add to this....

We went to the Shift-Sector 1/2 mile shootout in Coalinga, CA this spring with my buddies built LS9 powered turbo FD RX-7. With about 50 miles of engine break in on basic uploaded borrowed tune the Holley made revisions to the base tune......then we pretty much had to clean up idle, cold/hot start. The car was then driven to the event about 150 miles (50 miles away) until an oil cooler line ruptured putting the car on the trailer. The issue was fixed, car pressure washed, and then the next am it went to the event. He ended up beating an 1150rwhp+ Ford GT (supercar) twin turbo with nitrous setup in the domestic finals with his car. This was with no dyno tuning, about 1.5hrs worth of messing with the Holley software, and traction issues. His car went 193.5 in the 1/2 mile with around 150-200rwhp left on the plate. Next time out will be traction control and boost controller (he ran a manual one due to lack of time) working. He is shooting for 200mph+ in the 1/2 mile.

The car should trap in the high 170's or 180's in the 1/4.