Ok i know i should know how to do this right but i have a 89 turbo and i was wondering how to hook the turbo XS manual boost controler up. i have the lines right now going from the wastegate > MBC > turbo. i think thats right but i still dont have solid boost. it will jump to 8-9 and then fall to about 4 by the time i get to 6500. either i got a bad boost controler, hooked up wrong, or somthing else is wrong..any help would be great. THX!

 

turbo is too small

 

[quote name='Cowzzz' date='May 4 2005, 09:17 PM']Ok i know i should know how to do this right but i have a 89 turbo and i was wondering how to hook the turbo XS manual boost controler up. i have the lines right now going from the wastegate > MBC > turbo. i think thats right but i still dont have solid boost. it will jump to 8-9 and then fall to about 4 by the time i get to 6500. either i got a bad boost controler, hooked up wrong, or somthing else is wrong..any help would be great. THX!


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Got any modifications? A lot more involved than just adding a controller. Intake, exhaust, tid?

 

[quote name='Turbonut' date='May 5 2005, 12:54 PM']Got any modifications? A lot more involved than just adding a controller. Intake, exhaust, tid?


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yes i have alot...rb full exhaust, intake, TID, TB mod, FMIC, walbro, safc 2 , and alot of little goodies too but i still just want a sold PSI. not fluxuate up and down all the time.

 

i think the stock turbo falls off around there

 

[quote name='drftk1d' date='May 6 2005, 09:07 PM']i think the stock turbo falls off around there


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thats what im afraid to hear but i think its true. cars got about 97k on it, rebuilt engine and street port, but turbo is stock so i think it might be going. but it still pulls hard thats what i dont understand...

 

as in it runs out of efficency range at 6500 rpm.



its basically what j9fd says, so if you want to boost higher modify the turbo or get a different one.

 

[quote name='Cowzzz' date='May 6 2005, 09:34 PM']thats what im afraid to hear but i think its true. cars got about 97k on it, rebuilt engine and street port, but turbo is stock so i think it might be going. but it still pulls hard thats what i dont understand...


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yeah turbo is too small to make boost with all those mods at that rpm.

 

[quote name='j9fd3s' date='May 7 2005, 12:44 PM']yeah turbo is too small to make boost with all those mods at that rpm.


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toooo smalllll :P

 

the turboxs manual boost controller is complete crap. invest in a good greddy or blitz unit with a big solenoid