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Old 03-13-2009, 12:22 PM   #1
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Default Manual boost controller

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Old 03-13-2009, 12:30 PM   #2
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Last one I bought off of ebay wouldn't go any lower than 15 psi.
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Old 03-13-2009, 12:41 PM   #3
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Get the (NSX or NXS)one. Something like that. I have 2 with no problems or even boost creep.
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Old 03-13-2009, 12:48 PM   #4
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Originally Posted by amagalla View Post
Works perfect, it's what I'm running now. If you're trying to run lower boost, under 8-10psi the spring might be too stiff. I robbed a spring out of a clicky pen at work and was able to adjust for lower pressures though.
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Old 03-13-2009, 02:10 PM   #5
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+1 on the NXS. Its a no-gimmicks MBC that works out of the box.
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Old 03-13-2009, 02:31 PM   #6
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+1 on the NXS. Its a no-gimmicks MBC that works out of the box.
You can get the NXS for the same price. It works great. And their service is unbeatable. I lost the guts to it by my own mistake. I emailed to buy some. They just sent them to me free of charge and shipping. So I decided to just buy another one to go with it to be fair. Now both cars have one.
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Old 03-13-2009, 03:56 PM   #7
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I bought that one and its fine from 10-18psi (I have a 10psi spring in my wastegate).
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Old 03-13-2009, 07:53 PM   #8
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Damn I need one, at less than $20 its way worth it so I don't have to unhook the lines, unmount it, and then use wrenches to adjust it. Anybody want my FM one?
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Old 03-13-2009, 10:55 PM   #9
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I had one of those... they were branded as Voodoo MBC. It was probably the single-best turbo purchase I made. It was perfectly adjustable from the start and worked exactly as advertised.

There are about 100 different MBC's out there of various shapes and designs. I did an absurd amount of homework, and I never found a single piece of concrete evidence of somebody saying-then-proving that a $100 Hallman works better than any el-cheapo $15 ball&spring ebay unit.

Install it, crank it down about halfway and go for a drive. Take it easy in 1st/2nd, cause if it's too high you may hurt something. Do a moderate pull in 4th and lift if you're seeing too much boost... pop hood, loosen a turn or two and repeat. You should be able to have the thing giving you the exact boost you want in about 10 minutes if you've got a road you can pull over on repeatedly.

Each time I would adjust the ****, I'd tap the body with the wrench to make sure the spring was at ease. Piece of cake.
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Old 03-13-2009, 11:34 PM   #10
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Quote:
Originally Posted by samnavy View Post
There are about 100 different MBC's out there of various shapes and designs. I did an absurd amount of homework, and I never found a single piece of concrete evidence of somebody saying-then-proving that a $100 Hallman works better than any el-cheapo $15 ball&spring ebay unit.
I bought a AEM-Truboost (msrp $352) and a turbonetics boost controller (msrp $108) they were both crap and didn't work at all. The only thing that has worked for me is the most basic cheapo ball and spring controller. It's really a simple simple concept, when companies try to complicate it and fancy it up things seem to go horribly wrong, at least in my experience.
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Old 03-14-2009, 07:26 PM   #11
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I built mine using the DIY MBC site.

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Only difference is I used an 8mm bolt instead of 5/16. Keepin it meteric LOL I think I am going to braze a tab to it so that I have a way to attach it.
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Old 03-14-2009, 07:57 PM   #12
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I use this one is its amazing!

Flyin' Miata 1 800 FLY MX5s
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Old 03-14-2009, 09:00 PM   #13
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That's the one I have but I don't really like it. There's no way to mount it (I'm using a ziptie and I hate it every time I look at it), and you have to unplug the outlet line, and carefully place two wrenches to adjust it. If the wrench on the lock nut is too low it'll lock into the body and obviously not loosen the nut. Those are just my pet peeves about it though. Its only a pain when you're adjusting it and I don't do that much at all.
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