I have a 2004 evo rs im just wondering going about tuning it. The previous owner ran e85 in it . I run 91 in it now it seems to run a little sluggish. Im just looking to get it running rite for the type of driving I do which is just daily driving


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Go into the ECUFlash sub forum in the engine management/ ecu tuning section. Look at the stickied thread for important ecu threads and links. There is a link to how to tune an evo. Download and read Merlin's tuning guide. Go on youtube and search for Recompile's ECUFlash tutorial. Ask questions in the ECUFlash forum. That is if you want to do it yourself.

If you would like it done for you there are vendors that can take care of it via email.

 

Maybe a dumb question, but were the injectors down sized before going back to unleaded?

 

PM tscompusa or another tuner on the forums. Check out the dyno tuning and results section there's a bunch of tuners on there.

If I were you I'd go back to running E85... that stuff is truly amazing

 

check us out http://www.mellonracing.com/index.ph...dex&cPath=1_28

 

If you need any help, just let me know.