Jump to content
The mkiv Supra Owners Club

Not making suffiecient boost :'(


islandsupra

Recommended Posts

Hi Guys,

 

Really need some help here ... I have a 98 vvti TT, with a blitz catback, mid pipe and dug out the cat converter with no restrictor ring .... from what I see on various posts, I should get about 1.2 bar with this setup ... well maybe not because I would hit the boost cut first. At first, I would hit the boost cut with absolutely no problems from third gear up

 

However, at present, I am only getting up to .9 bar ... Not certain where to begin with diagnosing this problem ..... I have an HKS SSQV ... the old type (with the screw at the back) fitted .... thinking that this maybe the culprit.

 

Any advice you can give would be greatly appreciated.

 

Thanks

Link to comment
Share on other sites

Not sure how you'd tell if the IC is leaking. Have you a picture you can post.

The bung that has been put on the turbo pipework oposite the bov, how is it looking?? Is it on tight?? Hasn't mis-shaped or melted in any way??

 

Thanks ... will check all of these and let you know what I find

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.