Log in

View Full Version : Crate LSX454 surging at low RPMs


pimlico
05-30-2015, 09:24 PM
Anyone else here running a crate LSX454 with LS7 intake from Jegs?

Noticed mine is surging at low RPMs.

Did you have to tune yours?

waynieZ
05-31-2015, 12:54 PM
I'm no LS mechanic but I've read that some big cams or larger throttle bodies can cause surging that can be tuned out.

canrc
05-31-2015, 10:05 PM
I had a similar issue due to my cam and after consulting many, I was told that I would have to live with it because of the factory ecu -- I went with the Holley setup and now the surge is gone.

pimlico
06-01-2015, 06:55 PM
Did you have a crate LSX454?

Who did you get to sort out the tuning with the Holley setup? Did you use the dominator? Was it an easy fix?