VHR + FD Gear Ratio upgrades - 3.9 and 4.08

Originally Posted by javol Why do you have to "wait for a programmer like UpRev that can tell the ECU about it too?" Maybe i'm wrong but... I do not

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
VHR + FD Gear Ratio upgrades - 3.9 and 4.08

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08-05-2009, 11:14 AM

#11 (permalink)

wstar

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Quote:

Originally Posted by javol

Why do you have to "wait for a programmer like UpRev that can tell the ECU about it too?"

Maybe i'm wrong but...

I do not see the reason to advise the ECU.

If you call a gear downshifting, ECU-tranny will give you it anyway, just checking the RPM, not speed...

Or I'm wrong?

Anyone has experience with changing ratio in AT (infiniti, 350Z etc)?

Bye!

I meant so the speedo will be correct.

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