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*Anecdotes* here suggest much larger than 850cc. Anything obviously wrong with my parameters above?
Lastly, what's the best way to go about getting a tune to start and idle a motor after switching to E85 and 13:1 heads on a stock cammed LS7? HPTuners or EFILive, and does anyone have a suitable starting point tune they could share.
(This thing needs to start to get it up onto the street and into a winchable position for the trailer.)
Last edited by carefulnow; May 11, 2016 at 11:37 PM.
I would think your tuner could supply both of these things.
I would say most people I read on here in E85 threads run at least ID1000 if not 1300, BUT if I was doing a build like you are, I would have been talking to my tuner far before now to see what they suggest or think I would need.
Same on the second point. Might cost you a little money to have your tuner come out and load you a base tune, but IMO thats the way to go.
I can tell you for sure that ID1000's idle just fine on a stock displacement LS2... so they'd be fine for your setup. ID1300's would be fine too, and they're made for E85, but cost more too
Tune wise the tuner should be able to get you going fairly easy just by changing injector data, stoich value and letting fuel trims help get rid of whatever fueling errors there are after that. Won't be perfect but should be more than enough to do what you want.
Where are you located?
Last edited by schpenxel; May 12, 2016 at 06:18 PM.
Take stock tune, change AFR table to 9.85 across the board, use injector data provided by ID for whatever injectors you end up getting and then see if it'll start
Last edited by schpenxel; May 12, 2016 at 09:49 PM.
Your lambda at WOT may be a little low depending on your target AFR; however, that would only lessen the amount of fuel consumed. With your setup, a 60 lb./hr. would suffice.
Appropriate injectors for E85, 13:1 LS7
