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ECMlink Help tuning 850cc on e85

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99bluegst

10+ Year Contributor
200
1
Mar 10, 2010
houston, Texas
hello everyone I need advice and tuning my car on e85
current setup is:
6bolt 9.1 cr with 2g head all arp studs
delta 272 evo9 springs
evo3 intake with 60mm throttle
fic 850cc wally 255 rewire fuel lab fpr and filter
eclink v3 full sd, 3gm map, gm iat

turbo currently is a saml tdo4hl-19t max flow @34lb
I plant on running bigger turbo later but I want to learn more of this e85 magic fuel
any advice on my setup I know my injectors are small but my power goal is to max out this turbo and maybe if dont run out of injector I can throw my fp t28, thanks guys heres my idle log on e85
 

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  • log.2019.01.28-01.elg
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Nobody has answered you yet?
Well I can try. I run SD on all my dsm's.
Global set at -26.8?
 
Nobody has answered you yet?
Well I can try. I run SD on all my dsm's.
Global set at -26.8?

no one but you my friend according to the math that gofer said on my previous post 850/1.48=570 now 450/570-1 =0.21 or -.21% global
on ecmlink showing -.21.9% maybe you can take at look at my log and see what you think?
 
Can't see the log on my phone and my country internet sucks but yeah I need to see it.
According to the ECMLink global fuel calculator it is recommending -26.8 if you are running 43.5 lbs of base fuel pressure.
Do you run that or lower?
 
Ok good. Can you change your global fuel and it still run and idle? Thats the next step. Then we go for a cruise for 15-20 mins in varying conditions and let SDadjust do the rough math for us and apply those. Do that again 2-3 times and always reset fuel trims so that Link can do its best to dial you in.
Have you done any of this before?
Corey is a great help on the forum and his explanations are great. I am going with the Link Calculator suggested setting and he is right about most fuel being E10 already.
 
Last edited:
Ok good. Can you change your global fuel and it still run and idle? Thats the next step. Then we go for a cruise for 15-20 mins in varying conditions and let SDadjust do the rough math for us and apply those. Do that again 2-3 times and always reset fuel trims so that Link can do its best to dial you in.
Have you done any of this before?
Corey is a great help on the forum and his explanations are great. I am going with the Link Calculator suggested setting and he is right about most fuel being E10 already.

yes I have done the cruise but have not reset the fuel trim just yet, that is a good idea, im 40 minutes home in traffic I will reset the fuel trim and record data log also I altered fueltrimthershold in the DA table so I can stay in close loop as long as possible and repot back with cruise log, thanks :thumb:
 
Well I'm not the pro, but I can get ya thru to a decent point. Even I need help from those guys!
 
Sorry. Gotta get it to my laptop that isn't here right now. Didnt mean to leave you hanging.
 
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