Been trying to get a read on how far (in terms of ethanol content) people have been able to run and at what whp?
Ideally want enough fuel system to just grab the E85 pump at the station and not have to cut it with gasoline, bc only have enough fuel pump for E30... I've read in the 600whp range, only fairly low ethanol content fuel can be used bc fuel system is maxed.
Does anyone have any number on say the following setups (all assuming stock cam fuel lobe). ie how much whp will 85% ethanol support with the following pump setups? Also, if anyone knows at what % ethanol they are hitting MBT, that would be useful as well!
1. Stock LPFP and HPFP
2. upgraded LPFP and stock LT1 HPFP
3. upgraded LPFP and LT4 HPFP
Vehicle of interest in L83 2018 silverado.
I put in the ethanol sensor, but if have to blend the fuel at pump, might as well just run a standard 93 octane tune and not mess with potential of running lean. Shooting for 500/500 with whipple 2.9L on my 5.3L.
Thanks!