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Default E85 Mix - 12-20-2018, 10:33 AM

I believe I asked several months ago on Vortex.

Anyone running a partial E85 tune? How rich can we get stock injectors to flow?

I know it's not as easy as a new Mini or BMW but can we run a solid 1/3 E85 and have tune adjusted for it as to not run lean?

I am currently running George's revised Map 6 created when my 1.8T Jetta was stock other than air filter. It now has lost the 2nd *** and has a straight resonator. Perhaps we can do a bit of revising although primary *** is still there.

I'm currently running a 88 (15% ethanol max) and E85 (minimum 51%) mix. 4.5 gal of E85 and 9 gal of E15. I've gotten EPC light but very rare. If using a higher minimum ethanol pump I'll dial back to mix to 4 gal.

Any input appreciated. I'm a cheap ass and plan to switch to Jetta from Mini (N14) for track days. So 2.5 hours at Sebring raceway is considerably cheaper when not running 93.
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Default 12-20-2018, 10:34 AM

I guess *** is kitten
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Default 12-20-2018, 12:59 PM

Typically we don't suggest going higher than E35 but its also relevant to how aggressive the boost is set. At a certain point the trims will max and AFR will run lean so this needs to be evaluated with some logging.


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Default 12-20-2018, 02:00 PM

Quote:
Originally Posted by George @ BMS
Typically we don't suggest going higher than E35 but its also relevant to how aggressive the boost is set. At a certain point the trims will max and AFR will run lean so this needs to be evaluated with some logging.
OK I'll probably do a log in Map 4 with that fuel mix.


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Default 12-20-2018, 02:02 PM

Quote:
Originally Posted by Spade
OK I'll probably do a log in Map 4 with that fuel mix.
Map 4 will target stock AFR levels so I doubt you will see any change. Best to test with the tuned maps.


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Default 12-20-2018, 02:09 PM

Quote:
Originally Posted by George @ BMS
Map 4 will target stock AFR levels so I doubt you will see any change. Best to test with the tuned maps.
OK I'll leave it on the 6 you made for me earlier.


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