for manual boost controllers

Mostly used on Mr2s and other 3sgte motors, my brother uses this unit on his MR2 turbo, and it holds very nice at 15psi. Its a dual ball and spring MBC. I needed something to up my boost a little for a temporary time. What do you guys think?


http://www.twosrus.com/catalog/produ...20f9d656e7d34e

 

ive heard good things about that particular boost controller

 

$50 bucks ??? Damn... lol.. go to your local hardware store.. HomeDepo, lowes, or whatever you can get it there for $2 dollars.. . i gave one to one of my friends he has a 97 eclipse gsx.. still have it.. its been 3 years.. same one i gave it.. only cost me $1.50. hahaha.. no boost spikes or anything..

but the answer is yes it will work... looks pretty good, but not for 50 let me tell you that..

 

$2? how show me now.

i was looking for ball and spring for the responsiveness. i heard bleeder is a little bit laggier?

 

Needle valve (bleeder) controllers still rely on the stock solenoids and ECU maps for control and are therefore prone to non-constant boost control due to weather changes, etc. They also are slower to respond, since there is more line volume to fill (all the way to the stock solenoids) through a very small bleed area.

Ball/spring (and electronic) controllers work quickly and control much more precisely, since (a) they have more flow area, (b) the volume to fill is reduced - the lines from the actuators are blocked, and (c) pressure to the actuators is directly controlled as a function of the spring compression or feed-back to the electronics, not a pre-programmed ECU map that has no idea what the boost is actually doing.

 

my buddy has a 93 mr2 running at 17psi with that mbc, no problems at all.

 

A poppet valve for $1.50? Link, please.

Grainger sells one for $9 and McMaster-Carr sells it for $7.50, but you need to tap a 1/4" nipple on the side, screw on a 1/4" nipple on the bottom (3/8" NPT female), and plug the hole in the top.

http://www.grainger.com/Grainger/wwg...628465&ccitem=
http://www.mcmaster.com/ part #48935K25

 

$50 is way to high, if you ask me. You can literally build the exact same thing using parts from Home Depot or Ace Hardware. I ran a few ball-and-spring controllers for a while. They cost me less than $10 each and about 30minutes of time to build. They worked great while I had them. IMHO, the only reason to pay any more than that is if you want a MBC that "looks" a little nicer (like the hallman MBC's) or you are stepping up to an electronic. Here's a DIY-guide that will give you a basis to start: http://www.geocities.com/chmwatson/FAQs/mbc.html.

-Rob

 

you guys chimed in way too late =(

 

I ended up throwing my old mbc in the trash. I've got a hallman RX pro now.

 

what! ahhhhhhhhh i never throw parts away....thats why my garage is like a junk yard.

 

It'll work to control your boost just fine. For $50 bucks it's a suckers deal.