1.8

looking at the turboXS HP boost controller. since they claim..."The ball and spring mechanism keeps pressure out of the wastegate until the preset boost level is reached, significantly reducing wastegate creep and providing quicker turbo spool up."

did a search and the opinions on them are 50/50. some say boost creep, some say there is no boost creep.

i basically want a cheap boost controller. are the worth the money?

11psiTurboSI

Turbosmart

onePOINTsix

i never had any creep with mine on the GTI, i dont see a problem in using them

b18bturbo

i used one on the race car turbo xs high performance no issues no creep held boost fine on large turbo too

el arbi

Turbo XS isn't bad.

DRAGLS

I run one on the supra holds fine

1.8

cool. thanks for the positive replies. keep em coming.

W O T

I run a JoeP MBC, same design.

Works perfect, no creep or spikes, just ******* plants at 16psi and tells everything else to **** off lol

Got it for $25

warrick

use one on a b16 with a gt28, internally gated. creeps from 5 to 8psi.

when the same manifold, turbo, and mbc were used on a b18, crept from 8 to 11psi.

fairly sure the little rubber washer inside was useless... replacing that would probably help. it leaks.

HXMan

Mine doesn't creep.

wantboost

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by warrick &raquo;</TD></TR><TR><TD CLASS="quote">use one on a b16 with a gt28, internally gated. creeps from 5 to 8psi.

when the same manifold, turbo, and mbc were used on a b18, crept from 8 to 11psi.

fairly sure the little rubber washer inside was useless... replacing that would probably help. it leaks.</TD></TR></TABLE>
internal gate, thats your problem

boostedcivicsir

i have never had any issues with them, but i have never had any issues with my 30$ manual boost controller i make either.

littlebluecrx

we run there dual stage on all our cars, I would say most of the 9 second sport fwd cars run em... think they work pretty good, never creeps, responce is great between stages....

Snail Tuning

they don't seem to like vacume much. i had mine installed on the throttle body, and it leaked, and the car idled really crapy. moved it over to the port on the front of the intake manifold (d16y8) and it idled alot smoother and no leaking. no idea why the location made a differance.

make sure you install them the right way or they are usless.

good overall review from me. used one on 4 cars, and about 6 diffecnt setups.

093turbo16

iTrader: (2)

Works well if I didn't have a crappy internal gate at the moment. But it use to hold... I like it.

1.8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Snail Tuning &raquo;</TD></TR><TR><TD CLASS="quote">they don't seem to like vacume much. i had mine installed on the throttle body, and it leaked, and the car idled really crapy. moved it over to the port on the front of the intake manifold (d16y8) and it idled alot smoother and no leaking. no idea why the location made a differance.

make sure you install them the right way or they are usless.

good overall review from me. used one on 4 cars, and about 6 diffecnt setups. </TD></TR></TABLE>

i always thought that they're suppose to be hooked up on the intake manifold side. but if i had a vacuum manifold, i wouldn't have this problem, right?

evosol

yeah i run my HomeMade boost controller off of a vac manifold, with vac comming from the brake booster. This is the third boost controler ive used in a week and its the only one that holds boost like its supposed to.

check this link... it doesn't hurt to try it out... it cost me a total of almost $12. My only difference is that i used a wing nut for a jamb nut.
http://www.geocities.com/chmwatson/FAQs/mbc.html

lsturbo

Run a hallman MBC.... i've seen car made over 400whp that uses it... it was holding 27+psi... it doesnt creep or spikes...

http://www.gruppe-s.com/Subaru/subeng/hallman.htm

Rod.

turbo xs is pretty good. It started acting up a little but that is what you get when it is used

YashiMotors

this turbo xs MBC how exact can you controll the boost with it?
I mean can you raise from like 10psi to 11psi or isn't it that accurate.

littlebluecrx

like any bleed you have to turn it up to it's threshold, once there just turn it a slight bit like 1/8th of a turn and you should get a 1 psi increment...