charlie_sohc

ok...guys I cant figure why my car is boost creeping...Its a Full-race top mount signle 044 wg...I have the new tial mvr 44 with the 5.8 lbs springs. Its creeping to 11 or more ...dont know how high it was going because my hondata 4bar is on order...its creeping around 11 or so at 6500-7000 rpm.. My wg open not connect to down pipe..vacuum is one line all the way to the intake manifold and just running off the wg.The my set-up is...full build 2.0L ls-v, 9.6:1, ported head, 68mm tb, eldbrock intake manifold, full race top mount, garrett gt35 w/ .82 ar. any help will do thanks....

wilham320

iTrader: (1)

I would move the wg boost line to the turbo compressor housing, instead of the manifold. Also, have you taken the tial apart to verify what spring it has installed?

charlie_sohc

yeah i have, there were 3 spring in there so i took two of them out and left the 5.8lbs spring in there, recheck the mvr spring chart at atp turbo, i have the gary spring ....

QwkD16

The wg might be too small or have a bad placement (teardrop) on the manifold. I had to run a 60mm wastegate/gt35 with my 90* 2.5 bend coming out of the manifold, because we didnt have the room for it to exit and teardrop straight out of the manifold.

hybrdthry911

this isnt uncommon at all, i always recommend twin gates or a 60mm on any gt35r with a manifold thats power oriented and not WG oriented, especially if they have a ported head.

laosonick

iTrader: (5)

i had the same manifold and had the same problem, i also had a 46mm on it

charlie_sohc

[QUOTE=QwkD16;44156971]The wg might be too small or have a bad placement (teardrop) on the manifold. I had to run a 60mm wastegate/gt35 with my 90* 2.5 bend coming out of the manifold, because we didnt have the room for it to exit and teardrop straight out of the manifold.

i dont think wg placement is the problem ...its is teardrop like yours in the picture...was thinking the same...i need a bigger wg...i have the same manifold as picture here...

blackmugensivic

Like stated above move your vaccumm line from the wastegate to the manifold over to the compressor housing on the turbo and see if that helps any

0PSI2HI

Why are you trying to run 5psi on a 35R w/ a topmount in the first place? have you tried a higher boost level and see if it stables out?

charlie_sohc

at first i thought it was an 8 lbs spring but i was looking at the 38 mvs chart...plus i'll trying to get traction on the street...i already made 392 when it creep to 11-12 lbs at 7200 rpm on pump 91 and still got to go to 8700rpm...but stop when its creeping too much...i havent try moving it vacuum line yet...when let you know when i do

turbociv910

Y r u driving it.. is the car tuned?? Run more boost. Get a better manifold.

QwkD16

Minus the wastegate flange, this would be a better design. Your manifold actually has the entry for the wastegate going in the OPPOSITE directions. Not a good design. The exhaust should flow into the wastegate.

0dancing_ninja

Put a 60mm on it or dual 44's. This is the solution to your problem sir.
..... we sell those btw.

charlie_sohc

yeah i drive it now and then...and yea it tuned but we limit the rpm so it cant creep over 10lbs of boost puls i have lean cut with s300 on...so if it goes lean, lean-cut kick in...still wainting on my 4bar from hondata...and retune