Fuel Pump Fix / HCP / DME Tunes

JBA87 · 03-21-2020, 10:53 PM

Quote:

Originally Posted by Hockeytyme

Quote:

Originally Posted by JBA87

I still think it could shave another .5

I'll let car adapt

And wait until a little cooler

Will add a gallon of e85 later too see

Another 0.5 is a lot... haha Good Luck though

I think under 7.0 is pretty solid stage2 and with good temps and DA and fuel then mid 6's are good. For race fuel you can get to lower 6's or maybe high 5.9 with custom tune, negative DA and downhill...haha

Which stg2 tune did you run?

DME

ss_m5 · 03-22-2020, 12:42 PM

Does any know if either DME or HCP’s tunes will autocorrect to the corresponding fuel? You have a Stage 2 93 Octane tune and want to add some E85, will you see additional gain?

JBA87 · 03-22-2020, 01:04 PM

Adding a little bit of E85 might see a slight improvement in times because it might make the quality of the 93 octane a little better

But .. you would need an e30 map to blend to that fuel and see real time improvements

03-22-2020, 12:42 PM	#24
ss_m5 Private First Class 73 Rep 174 Posts Drives: 2019 M5 Compitition Join Date: Sep 2019 Location: V iTrader: (0)	Does any know if either DME or HCP’s tunes will autocorrect to the corresponding fuel? You have a Stage 2 93 Octane tune and want to add some E85, will you see additional gain?
	Appreciate 0 Quote

03-22-2020, 01:04 PM	#25
JBA87 Lieutenant 107 Rep 411 Posts Drives: 2019 BMW M5 Join Date: Jan 2020 Location: Palm beach gardens iTrader: (0)	Adding a little bit of E85 might see a slight improvement in times because it might make the quality of the 93 octane a little better But .. you would need an e30 map to blend to that fuel and see real time improvements
	Appreciate 0 Quote