Quote:
Originally Posted by Aire valley
That's a big jump from 19t to 28t.....
I would think 19 is too small unless you have a massive amount of boost..
With 13.5t I would try around 25 and go from there..depending on the track..
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I agree I’d personally run around 25/81 . I run a 19t spec motor in mine at 24/81 and that’s spot on .