speedometer changes in my tune?? any help??

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
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vnsswithcam
Posts: 79
Joined: Sat Mar 20, 2010 3:20 am
cars: vt ss commodore
Location: penrith n.s.w

speedometer changes in my tune?? any help??

Post by vnsswithcam »

ive got a vn ss and ive changed my diff gears from 3.08 to 3.45 ratio and i would like to know if anyone knows if i can change and what to change it to? i think its the ppk i need to change but not sure what to?
any help guys?
cheers
one point twenty one jiggawatts!!!! great scott!!!
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delcowizzid
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Location: Wellington NZ

Re: speedometer changes in my tune?? any help??

Post by delcowizzid »

it wont fix your speedo but it will help the ecu and tcc lockup idle speed limit etc do some maths useing the 308 and 345 ratio to find difference in pulses per km and change the ppk setting by the % you calculate
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem
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Doctor Bob
Posts: 195
Joined: Mon Mar 02, 2009 12:58 pm
cars: VN, VT
Location: Melbourne Vic.

Re: speedometer changes in my tune?? any help??

Post by Doctor Bob »

better off fitting a Jaycar speedo corrector circuit, this will fix all the problems in one go

Rob