boost creep

[eclipsegsx97979]

took the car for a drive today after changing the exhaust manifold and i noticed that when i was in first and 2nd and punched it the boost would spike to like 25 psi... seems to be boost creep how do i get rid of this? i have a t3/t4 50 trim turbo internal wastegate, boost contoller, intake fmic, i/c piping, fuel upgrades and all that....


kevin

 

[NOSLO2PT0]

Does it spike or does it creep? 2 totally different things. Spike is reaching a boost level, then slowly falling, while creep is reaching a boost level, then slowing creeps higher.

 

[eclipsegsx97979]

at this point its spiking at like 25 psi.... i did notice a while back it would hit a certain boost level then go up a little bit as i went faster....

 

[VBGSX]

Who makes your turbo?
What o2 housing do you have?
Here's how I controlled mine.
I have a 50 trim also that's internally gated.
I hogged the o2 housing out a ton.
I payed even more attention to the wastegate tube on the housing. I ported it a ton and then polished it to a smooth shine. Stock, it's to small to flow enough exhaust through, to control your creep.
I then port matched the housing and gasket to the turbo and port matched the housing to the DP

After all was said and done, I could run 15lbs rock steady. It see's 21 daily now with no issues
Good luck

 

[NOSLO2PT0]

at this point its spiking at like 25 psi.... i did notice a while back it would hit a certain boost level then go up a little bit as i went faster....

That's boost creep.

 

[eclipsegsx97979]

i did notice it creeping on me today when i was on the highway getting higher in speed... the position im in since all the stuff ive done to my car is that im flat out broke now . is there anyway to fix this boost creep problem with having to get a manifold and wastegate?

 

[NOSLO2PT0]

i did notice it creeping on me today when i was on the highway getting higher in speed... the position im in since all the stuff ive done to my car is that im flat out broke now . is there anyway to fix this boost creep problem with having to get a manifold and wastegate?

Yeah. Search and reading is your friend. But since you prolly won't, I'll give you the answer. Port the wastegate hole.

 

[btrux06]

what turbine hosuing u have on that 50 trim? my pte boost creeped so i got a bullsye performance housing and pulls harder and no creep at all thanks to there bigger 38 mm internal setup

 

[VBGSX]

...... im flat out broke now . is there anyway to fix this boost creep problem with having to get a manifold and wastegate?

Like NOSLO2PT0 said"reading is your friend"

I guess you missed post #4 I just told you how to eliminate it...
good luck

 

[oldman]

Search and read, I picked out a couple of informative threads for you but there are much more if you do a search on "creep". Read through them carefully and come back and ask any questions you have. Good luck.

http://www.dsmtuners.com/forums/showthread.php?t=166082&highlight=creep

http://www.dsmtuners.com/forums/showthread.php?t=153141&highlight=creep

 

[oldman]

Here's an even better one.

http://www.dsmtuners.com/forums/showthread.php?t=108843&page=1&pp=25