Got my MBC in the mail and hooked it up!

736 Views 6 Replies 3 Participants Last post by 20VsilvrGTI, Feb 9, 2002

20Vhybred

Discussion Starter · Feb 9, 2002

Well i got my Joe P Manual boost controller in the mail today and i wasted no time hooking it up.I installed the MBC before the n-75 in hopes i coulld squeez one or 2 more pounds out of my k-04.On my first run i noticed at part throttle i was already boosting a little got into the throttle boost gauge shot up to 2.00 bar

Holy $hit guess i got to back off on the valve some more.I ajusted it all the way out and went for another run .Boost spiked at 1.7 in fourth i backed off and removed the MBC .I might play with it a lttle more but it doesnt look like it can be ajusted open enough just to gain 2 tenths of a bar .Its half a bar or nothing at all.

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mrkrad

· #2 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (20VsilvrGTI)

is that a ball-spring type valve?
if so, you need to understand how the spring tension effects the amount of boost you dial in. (hint: bigger stronger spring = more boost, weaker = less boost).
In my corrado i had to add a second spring to go over 20psi of boost. I think your mbc has too much tension. Ask MR. JOE about this..

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syntrix

· #3 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (mrkrad)

but you also have to understand that at part throttle, even with a chip, the fuel maps most likely can't deliver enough fuel.
Be very careful, people kill turbos experimenting like this all the time. Got an egt gauge installed?

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20Vhybred

Discussion Starter · #4 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (mrkrad)

Yes it is the ball spring type valve.I will sak Joe if he can change the spring for me.I already have a chip and just wanted to trick my N-75(stock EBC) into clossing the wastegate enough for another couple of pounds of boost.

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20Vhybred

Discussion Starter · #5 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (syntrix)

Yea i hear you i think i an done playing with this .

quote:[HR][/HR]but you also have to understand that at part throttle, even with a chip, the fuel maps most likely can't deliver enough fuel.
Be very careful, people kill turbos experimenting like this all the time. Got an egt gauge installed?
[HR][/HR]

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mrkrad

· #6 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (20VsilvrGTI)

http://home.earthlink.net/~turbogus/tech.html
Read over gus's site. Although its pretty archaic information there's a ton of poop on his site to learn about.. Not all of it applies, but its damn good read regardless.
Don't forget to check out the 12 second caravan...
your probably just better off buying a k04 chip imo...

[Modified by mrkrad, 8:55 PM 2-8-2002]

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20Vhybred

Discussion Starter · #7 · Feb 9, 2002

Re: Got my MBC in the mail and hooked it up! (mrkrad)

I have a AWW 1.8T and there is only 1 chip maker with k-04 sofware and i will never buy anything from them.So i will have to wait i guess.

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