smaller pulley.

[GAF2]

Orite guys, when changing to a smaller pulley i.e from 60mm to 58mm is a different chip/map required or can the ecu match the fuelling etc to the extra boost?

cheers

[scotsjohn]

You'd need a re-map or a dedicated chip for that size of pulley. I don't think Jabba did anything below 65mm. Maybe G-werks.

[type-r-dunk]

Just out of interest what size is the oem pulley? (is it 60mm?)
Dunx

[PeteG40]

oem is 76mm

[GAF2]

ok guys cheers, will see about a chip to suite.

[tez]

Just a bit of a hijack, what do you do about a belt? Do you need to get a shorter belt for the smaller pulley?

Cheers

[GAF2]

Yeah you need shorter belts the smaller you go.

[tez]

Where can I get belts to fit a 65mm pulley? Thanks

[samg40]

If you are on standard v belt pulleys the standard belts are fine. I never had any problems when I ran them.

[PeteG40]

as sam said - normal v belts for v pullies but with a very small toothed pully set you need a smaller  belt