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Discussion Starter · #1 ·
Well I was really hoping to get my car back from the tuner today with my PT6265/39mm precision wastegate/ log cast manifold. I had the wastegate hole port matched for the 39mm wastegate.



Went to make a pull with the 1 BAR spring in it, and it instantly shot to 20 PSI. Took the wastegate off, inspected it AND the springs. Everything is just FINE. Even by-passed the boost controller and ran just off wastegate. Put a 10 PSI spring in the wastegate. Result?



With everyone running an identical set up to mine with a treadstone manifold, I think its obvious this is the weak link. Maybe if I ported the hell out of it may work, but after seeing flawless results with the treadstone, i'll go that route.

So if anyone wants to buy it and ported it them selves, it'll be for sale shortly!!
 

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Discussion Starter · #3 ·
Yea he ported out 39mm all the way. I think its just the angle of the picture.

-Larry, can I get your opinion on this?


Got the treadstone manifold in yesterday. From memory this does look better than the godspeed manifold. Here are some pics from taking it out of the box:






Here is after my machine shop porting it to a 39mm and cleaning it up for me.











Do you think this looks OK?
 

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Here's a ported out Treadstone I recently saw in a thread on the UK forums:





with a 67mm on it


the guy's kit
 

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Discussion Starter · #5 · (Edited)
Holy shit. That looks really good. I hope I've opened it up enough to
Prevent some boost creep...

I just really hope this manifold works....
 

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That looks pretty nice Pat, I wouldn't be too worried. There were no signs of boost creep on the car we did. I think you'll be very pleased.
SP tuned my car on a treadstone log mani and I have zero boost creep. You should be good.
 

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Discussion Starter · #8 ·
That looks pretty nice Pat, I wouldn't be too worried. There were no signs of boost creep on the car we did. I think you'll be very pleased.
Ok thanks Reid, That makes me feel better :)

I was sick to my stomach when I was running a 10 psi spring on the wastegate, and it boosting 20psi!

SP tuned my car on a treadstone log mani and I have zero boost creep. You should be good.
Excellent to hear. Did you port yours out at all?
 

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Discussion Starter · #10 ·
Mine was ported and looks very similar to yours pictured in your post above.
Awesome that is what I was wanting to hear! Thanks for letting me know. I'm
Looking very forward to getting this car dynoed with this manifold on!
 
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