LMM: 2007.5 LMM power issues

[five21racing]

shim the fprv, also set the defuel level on the mini max to a higher temp.

Reset it so it defuels when the water temp hits 240*
If "fprv" stands for fuel pressure relieve valve, then there's already a PPE race valve (plug) installed.

Where are you guys installing fuel pressure gauges after the lift pump?

Looks like I'll be making a trip to see a mechanic soon.

No clue on the fuel temp when it goes into limp mode. Doesn't matter how long I drive when the trailer is hooked up.

I called up the company who builds the lift pump and talked to a tech. He told me I'd be fine running with what it comes preset at. I, think, that was 8psi. I'd have to look it up again.

 

[Harbin_22]

Might be able to monitor it with the H&S. I had an LBZ with similar issues and I had to add a fuel cooler on the supply side. His would start acting up after pulling a 5th wheel camper for an hour or 2 on hot days. Hasn't done it since