• Announcements

    • Mopar1973Man

      Quadzilla Tunes   06/12/2017

      QUADZILLA TUNE REPOSITORY - There is now a Quadzilla tune download area. When you submit a tune file to the download area it will automatically create a forum topic that allows discussion of your tune. So export your tune and upload it to the site. Then we all can help out in building better tunes. Check it out gang...
    • Mopar1973Man

      911 Support Group   06/22/2017

      Hey Gang, I've got the 911 support group database back up and running once again. It's listed in the 911 support category. It will allow members to list their contact information and location so other have a listed of members to call upon in the time of need. So if you wish to support other member please stop by and add your listing into the database. https://mopar1973man.com/cummins/911-support.html/contacts/
Pnwtree

Dead pedal at high boost

29 posts in this topic

On 6/6/2017 at 7:59 AM, jlbayes said:

We still need to know drive pressure and interstage boost pressure. Manual gauge is following the map readout on the quad right?

Especially with a new setup involved.

Lol well I'm back at it again, replaced the intercooler with mishimoto, It ended up not being the fix for my issue though I know my old Ic was leaking so wasn't a complete loss. I installed my dp guage, and ratio in the low end is around 1.1 and then as soon as it high 56 boost my dp still goes up, hit 70psi on so guage then blew a boot on hot side of intercooler. That being said I must still have a leake? But I don't know where. Only thing I know that might and didn't show on leak test is intake plenum gasket. I did use a AutoZone one when I got the billet plenum. That or it's internal? Any thoughts..... at a loss and losing my mind.

Share this post


Link to post
Share on other sites

That sounds like you are not getting enough exhaust through the secondary.

Share this post


Link to post
Share on other sites
On 6/19/2017 at 6:46 AM, jlbayes said:

That sounds like you are not getting enough exhaust through the secondary.

Well case closed finally, turns out the last twin kit interstage pipe probably was the culprit in the boost cut off. As for 56lbs of boost, well what's the odds of 3 boost preassure guage all having max reading of 56.... granted one is off map sensor, but one is glowshift 0-60 guage, one is the quad, and last is unknown max snow performance water meth. So yea anyways stuck a air chuck on them and learned the problem. Explains why been blowing boots now. Thanks for help, shity that it was so simple lol

Share this post


Link to post
Share on other sites
On 5/17/2017 at 8:45 AM, jlbayes said:

Interstage. Pipe between the two turbos on the compressor side.

You called it

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now