95 formula tuned for 4.10s running
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Joined: Aug 2010
Posts: 7,322
Likes: 528
From: Ann Arbor, MI
No, only the Speedometer will be off.
If you don't change the tune (to fix the Speedo), the trans will shift at the exact same RPM regardless of what rear ratio or tires you have on.
However once you do re-tune for the speedo, you will have to change the shift Speed tables.
If you don't change the tune (to fix the Speedo), the trans will shift at the exact same RPM regardless of what rear ratio or tires you have on.
However once you do re-tune for the speedo, you will have to change the shift Speed tables.