Thread: E85 tuner

I recommend to everyone that mods their grand prix to buy an HP Tuner. it is simple to tune for E85 with it, and really is necessary because you never know what's going on without it. Just buy a new pro version so when you get a wideband it's easy to add to the tuning. 679 from summitracing and free shipping, or you can get it from intenseracing.

Not trying to push things very far at the moment, just trying not to get walked by another stock wrx haha

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Originally Posted by Scottydoggs

it rained here last night, just yesterday i finally got my tune set up for real 50/50 meth, went food shopping and didnt even floor it and it busted the wheels free at 60 mph, wet roads of course, all i did was give it enough gas to pull out and pass the guy a head of me, never made it past him. its never done that before. from a stop on wet roads, theres no more being in a hurry, cant even take off if you give it more then say 10% throttle. then once moving on local streets 25 mph ish any extra pedal made them spin with way to much ease. cant wait for dry roads, maybe i can find one of them wrx things while im out lol

Gap one for me cuz the one I went with from a dig handled me.

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I used a stock fuel pump all the way to a 2.6 with E85 and 42's, but it was leaning out and the pump wasn't cutting it. with the upgraded pump, I'm at 80% duty cycle and that is the highest i want to go. I do feel like i'm the exception to the rule as I live at 7000 feet elevation, so the air is so thin up here that I don't need near as much fuel. I also run water/methanol so I get more fuel headroom from there.

you can get away with not using a tuner with E85, but in my opinion you should use one.