Quote:
Originally Posted by jflogerzi
Now the next question 70mm vs 72.5. car will mostly run e85 but I will not be going flex fuel right away( in the future I will) so from time to time I may need to run 91. Also at the track I would only run 91 and maybe mix in some higher octane to help with knock protection Iam picking up a used 210 with intercooler setup. I am leaning towards the 72.5 for the best balance for when running 91. Also plan on running stock pump and injectors. Thoughts?
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Running E85 tune with FI without flex fuel is a little risky.
On 91octane it’s also probably a bit risky going below the 75mm.
Heat is sort of an issue on this kit with continuous hard driving. Meth or E85 will help with that a lot.
IMO I would stick to the 75mm with 91, and swith to flex fuel E85 with the 70mm pulley all at once later on when you can.
You’ll have a lot of fun with the 75mm and once it starts getting “boring” you have another big jump you can make to liven it up again. The jump from 75mm on 91 to 70mm on E85 will be as much as the original jump from bone stock to 75mm on 91 with header. 170whp to 230whp to 290whp
75mm pulley should make you about as fast as a 2019 370z then going E85 on the 70mm should make you about as fast as a 2019 mustang gt