2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Manual boost controller

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Old Jul 21, 2004 | 03:53 AM
  #1  
rotarracer's Avatar
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From: Ca
Manual boost controller

This boost controller came with my car. Therefore I know nothing about it. my question is where do I connect it? And is it possible to run the vacuum hose all the way into my cab or would this be a bad idea?
Attached Thumbnails Manual boost controller-mbc2.jpg   Manual boost controller-mbc.jpg   Manual boost controller-mbc3.jpg  
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Old Jul 21, 2004 | 04:01 AM
  #2  
VietFC's Avatar
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From: Wichita, KS
that's a new lookin one. it needs to go between the little nipple off the compressor and the wastegate. You probaby WOULD want it quite far away from the turbo since it says max temp is 150 F. Though im' not sure how good that would be.
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Old Jul 21, 2004 | 06:32 AM
  #3  
1SxyRXy's Avatar
my fc broke
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From: rohnert park,CA/ bay area
dont be so cheap and buy a fully electric one
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Old Jul 21, 2004 | 07:30 AM
  #4  
3RotorRocket's Avatar
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From: Metro Detroit
damn ive never seen a mbc like that

here you go buddy

http://www.lotuselancentral.com/mbc.htm
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Old Jul 21, 2004 | 07:45 AM
  #5  
SureShot's Avatar
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From: Orange Park FL (near Jax)
Does your dash boost gauge work?
Even if it does, is it accurate?
You must be able to tell what the actual value is when you force up the boost pressure.
My dash gauge is ~5 PSI at half scale & ~10 PSI at full scale.

The stock compressor has more boost potential than the stock fuel system can match.
I have personally verified this.

Will you be able to replace your engine when you detonate it? - (as I had to)
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Old Jul 21, 2004 | 02:19 PM
  #6  
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From: Ca
Thanks for the writeup

damn that looks pretty simple. well I've got an aftermarket boost gauge I just havent had a chance to check if it's hooked up yet.... so it would be a bad idea to run the vacuum lines to far from the wastegate?

Last edited by rotarracer; Jul 21, 2004 at 02:38 PM.
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Old Jul 21, 2004 | 06:05 PM
  #7  
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From: not in winterpeg anymore
I have the same MBC, it is actually made by the company that makes HKS MBC. I bought it used and have yet to use it myself, but the guy I bought it from said it worked great.
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Old Jul 21, 2004 | 06:24 PM
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pip's Avatar
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From: Milwaukee, Wisconsin
dont be so cheap and buy a fully electric one
Although a fully electric stepping motor is ideal these bleeder valves will work just fine, however I would reccomend you go with an aftermarket boost gauge otherwise you can never be to certain as to what kind of boost you are making.
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Old Jul 21, 2004 | 06:35 PM
  #9  
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Is that thing Turbo?
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From: Maryland
I'm am also interested in whether or not it would be ok to run the vac lines into the cabin, anyone have any info on this?
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