Quote:
Originally Posted by ag1leSS
Gah. Making me want to break warranty even more everyday. Lol. Especially since you're fairly close to me...
Is the tune a flex tune that allows whatever e content? I have ethanol close to me but still around 30 minutes from me. Is the rotofab that much more favorable over the gm performance (I already have it)?
|
Just do the ported IM/TB and tune. Then you can flash back to stock if you have to take it in to the dealer. Yea there is a flash counter in the ECM, but most dealerships are looking for the stock tune because they have to send it out to GM for warranty coverage or so I heard. Honestly I think most of what gets posted is BS and it really all depends on the dealership you use. Supposedly One guy had a warranty voided over a catch can others have done heads/cam with custom tunes and their dealership left warranty in tact...so it appears to be a huge gray area.
To answer your question, yes flex tune allows you to run either 93, E85, or both mixed. The sensor reads the E content and the ECM adjusts for it.
Jenetty Racing stated that the GM and RotoFab are within a couple HP of eachother but the RF has the advantage.