Holley hp help
Thread Starter
Teching In
Joined: Apr 2015
Posts: 15
Likes: 0
From: South Dakota
Holley hp help I have a 408 lq4 with ls3 heads and holley hi ram. Motor is 13.5:1 compression running on e85. Had it running very well and everything was good then all of the sudden it started falling on its face under a load. Sounds great in park runs right to 7000rpm nice and crisp. I've noticed it keeps coming off learn mode when driving
I know nothing about the holley systems, however it cant be much different than any thing else.
Id start with fuel pressure. Put a fuel pressure gauge on it and drive it. My guess is the pressure is dropping under load.
Id start with fuel pressure. Put a fuel pressure gauge on it and drive it. My guess is the pressure is dropping under load.
TECH Regular
Joined: Jun 2013
Posts: 487
Likes: 6
From: Orange, Texas
Check the parameters on CL and learn to see when it goes in and out. Also run a log to see how much correction you have in CL. You may have a hole in your fuel table that CL is correcting and when it drops out of CL it falls on it's face.
Look at the learn table and see if there and big numbers there.
Check the fuel table graph to see if there are any big holes or humps.
Look at the learn table and see if there and big numbers there.
Check the fuel table graph to see if there are any big holes or humps.
