Author Topic: what psi should a boost run at  (Read 1862 times)

Offline 123sparkiemarkie123

  • Not said much yet
  • **
  • Posts: 83
what psi should a boost run at
« on: 10 April 2010, 19:05 »
got my boost gauge and its boosting at 6 psi max not sure if its right

Offline Ben Lessani

  • I live here
  • *****
  • Posts: 3,873
  • The poor mans MK2 Haynes author
Re: what psi should a boost run at
« Reply #1 on: 10 April 2010, 22:46 »
Sounds fine to me.

Offline inivid

  • Not said much yet
  • **
  • Posts: 45
  • US Spec. MkIV
Re: what psi should a boost run at
« Reply #2 on: 11 April 2010, 00:25 »
The peak "specified" boost (what the ECU is requesting) is 8.7psi for all 1.8T motor variants, except for AWP motors (11.7psi). Your peak "actual" boost will always differ from your peak "specified" boost by a small margin.

Hope that helps.

Offline 123sparkiemarkie123

  • Not said much yet
  • **
  • Posts: 83
Re: what psi should a boost run at
« Reply #3 on: 11 April 2010, 09:52 »
cool just thought mine was inder boosting, only been in 3rd gear when i checked but my mate thought it was 12 psi and so did i but if you say its ok thats fine with me