Jump to content
The mkiv Supra Owners Club

Bpu


gurteen0

Recommended Posts

Evening all

I just put on all the bits for a bpu set up but boost is sitting at 0.7/ 0.8 mark I've done fcd, plugs, decat, Full exhaust, filter, just wanted to know if I've miss something along the way any help would be great oh it's a tt manual by the way

Link to comment
Share on other sites

No, the restrictor ring helps to stop the turbos over spooling bud

 

You can achieve your desired boost level, by carefully selecting the right sized restrictor gasket. But, it would take a fair amount of trial and error, so most folk just fit a 2" restrictor gasket, and use a boost controller to raise the boost.

By using an electronic boost controller, you can also play around with the gain setting, to help the turbos spool faster

 

 

Link to comment
Share on other sites

Evening all

I just put on all the bits for a bpu set up but boost is sitting at 0.7/ 0.8 mark I've done fcd, plugs, decat, Full exhaust, filter, just wanted to know if I've miss something along the way any help would be great oh it's a tt manual by the way

 

J-spec or UK spec?

 

If it's a j-spec then increasing the diameter of the hole in the restrictor ring will make the exhaust more free flowing, which will raise the boost pressure. On a j-spec I'd use a restrictor ring to cap the peak boost pressure at 1bar then use a good quality electronic boost controller to then raise the boost to 1.2bar.

 

If it's a UK spec it will need a boost controller to raise the boost pressure.

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.