Has anyone successfully installed a LS4 TB on a LSJ and got it to idle factory smooth. I have got this car dialed in very good. But the idle is still jumping around +/-150rpms from desired idle rpm.
I have messed with the ETC Scalar quite a bit with different numbers. Around 4950-4500 have seemed to be the best so far, but not perfect like I would like.
This is a tubro LSJ, stock camshafts. Idle is set about 1,000rpms. Car also is on 93 octane with 80lb/hr injectors. Just recently lowed fuel pressure from 58psi to 43.5psi to try and get the idle better. If anyone has some good pointers, it would greatly be appreciated.
Thank you