Author Topic: smaller pulley.  (Read 3395 times)

Offline GAF2

  • Members
  • *****
  • Posts: 295
  • serious supercharging
smaller pulley.
« on: March 02, 2011, 08:26:53 pm »
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
« Last Edit: March 02, 2011, 08:47:57 pm by GAF2 »

Offline scotsjohn

  • Members
  • *****
  • Posts: 967
  • Probably the oldest G driver in the Universe.
Re: smaller pulley.
« Reply #1 on: March 02, 2011, 08:50:35 pm »
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.

Offline type-r-dunk

  • Members
  • *****
  • Posts: 95
Re: smaller pulley.
« Reply #2 on: March 02, 2011, 09:43:59 pm »
Just out of interest what size is the oem pulley? (is it 60mm?)
Dunx

Offline PeteG40

  • Administrators
  • *****
  • Posts: 4036
  • Housewives heart throb
Re: smaller pulley.
« Reply #3 on: March 02, 2011, 09:49:16 pm »
oem is 76mm

Offline GAF2

  • Members
  • *****
  • Posts: 295
  • serious supercharging
Re: smaller pulley.
« Reply #4 on: March 03, 2011, 06:49:20 pm »
ok guys cheers, will see about a chip to suite.

Offline tez

  • Members
  • *****
  • Posts: 113
Re: smaller pulley.
« Reply #5 on: March 04, 2011, 05:51:58 pm »
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

Offline GAF2

  • Members
  • *****
  • Posts: 295
  • serious supercharging
Re: smaller pulley.
« Reply #6 on: March 04, 2011, 07:32:43 pm »
Yeah you need shorter belts the smaller you go.

Offline tez

  • Members
  • *****
  • Posts: 113
Re: smaller pulley.
« Reply #7 on: March 04, 2011, 08:41:36 pm »
Where can I get belts to fit a 65mm pulley? Thanks :)

Offline SamG40

  • Administrators
  • *****
  • Posts: 1108
  • Take.... on.... me....
Re: smaller pulley.
« Reply #8 on: March 04, 2011, 10:43:17 pm »
If you are on standard v belt pulleys the standard belts are fine. I never had any problems when I ran them.

Offline PeteG40

  • Administrators
  • *****
  • Posts: 4036
  • Housewives heart throb
Re: smaller pulley.
« Reply #9 on: March 05, 2011, 12:49:34 pm »
as sam said - normal v belts for v pullies but with a very small toothed pully set you need a smaller  belt