Mazda MX-6 Forum - View Single Post - Update on 90 1g dx. New wheels too
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post #12 of (permalink) Old 6-27-19, 15:37
Mazda Carnage
 
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Quote:
Originally Posted by 1FIERCEGT View Post
I Presently it spins 215/47/17 Dunlop Direzza's for a bit even at 120 km speed before it gets traction. The Direzza's were great for up to around 250whp but now it's just spin city, even on lower boost (around 270 whp), the lower gears are useless unless just cruising.
I hope your going with at least a 225 tire width, an N/A tune f2 can spin 215's, you have increase hp by 240% and torque by more than 200% over stock F2T and you have increase the tiny patch of rubber that meets the road by only 10% (20mm/2cm).
Just program lower boost and a bit less timing in 1st and 2nd gear and get wider tires.

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