1. A10 E85 car will beat M6 roush car. we knowin 1/4 the m6 is a disadvantage no matter the setup. (unless someone is as good as they think they are and even then)
2. A10 bolt on E85 car will give a stock A10 roush car a hard time..
The roush tune is setup for peak number and safety its not...
the NT05R will be better suited as a drag tire. even though id still choose a different tire for drag. the MPS4S is a better daily driver tire.. the NT05 non R is crap at everything
the PS4S is way better. i have had both the NT05 is scary in the rain, poor traction in the dry and i went about 8k miles on a set. i replaced them with MPS4S on my last car and was absolutely better in every way. I didnt keep car long after replacing but on my current car i have the stock MPS4S...
"retain" you get a roush warranty but the dealerships are pretty friendly about it. but it all depends on goals. if warranty is #1 then yes its hard to beat. But if later you decide youre not worried about warranty your gonna be fighting uphill.
you havent seen reality.. Roush tune delivers power soft. Plus if you have a Roush car with manual vs an A10 E85 car. my money is on the NA. id bet an A10 roush car would have a tought time against a bolt on E85 car.
i seen some posts about the changes an aftermarket tune will still yield more power and faster times. from what i have seen the heat exchanger and the inlet are limiting factors if you decide to make more power.
He has 18.. might still be too early to tell but this seems to be limited potential according to some tuners. so if plan to upgrade it seems its not worth it.. a lot of people going whipple stage 1 as they offer a warranty.
yes the roush tune is going to be soft. NA e85 cars will probably give you a hard time, especially if manual. Like i said depends on goals. if a warranty is number 1 for you then it would be best to leave it alone
with the failures happening on the 18s the OPG/CS is my last concern. lol as posted dozens of times before if hitting the limiter or running a 2 step then they could be a good idea. ill swap mine out when i build the engine.