MY Boost controller DID IT!!!!!

[gsxtacy]

Well kinda got a little anzy and installed the Brand New Hallman MBC I got a few weeks ago. Real easy install......worked great right out of the box. I went out for a drive.....boost shot to 24psi!!!! I was like whoa., horsey!!! Turned it down a turn or so.....hell yeah right on 18psi. Thats more like it!! So I was playing around enjoying the new found 20hp (or so it felt like) and decided to give the GSX a good launch. Revved her up to 4500 and slipped it out while stepping more into the gas. WTF??? Clutch slipped pretty bad.....revved all the way to red line before I could let off!!!!!! Needless to say I turned the MBC back down to 13-14psi and won't be doing that again till I get a ACT 2600 in there!!!!! But the boost controller works awesome!!

GSXTACY

 

[larryd]

mods are fun huh

 

[DMS-WhiteGSX]

I remember when I first made my MBC, it felt like a brand new car.

 

[Bohrn]

Yep, fortunately my clutch held, but I love the extra 30 or so hp I got from going to 16 psi from 10. Great stuff, best $13.58 canadian I ever spent! Well, aside from a case of beer

 

[kingearl]

$ 13.58 Canadian? Where did you get that. I was going to get a boost gauge and BC before the month ends. That sounds like one hell of a good deal. Do tell.

 

[Bohrn]

sure, I got a brass "T" fitting, 2 brass nipples, one cap, one spring and one ball bearing. Total cost $13.58

I put the nipples in the bottom and side of the "t" and put them in real tight with sealer.

next the ball bearing was put in so it fit in the bottom nipple, closing off the hole.

Then the spring was cut to length. and the cap put on the top.

and then I drilled a 1/16th" hole in the body of the "T" near the middle. This is a bleed-off hole to allow excess pressure to escape. Without it, the boost pressure would not allow the ball bearing to close off the lower hole, and you would slowly loose boost.

I put mine in-line between the boost nipple on the turbo outlet, and the nipple on the wastegate. When the boost pressure overcomes the spring pressure, the ballbearing moves outta the way, and allows boost to open the wastegate.

It took some adjusting, and some fine tuning, but now it is pretty good.

"nother tip, keep the hoses short and stiff. Longer, limper hoses create lag and spikes etc.

also, get a spring that is at least twice as long as you will need, so you can mess one up, and not have to go back to the store

Sorry, I don't have any measurements, I just went to a welding supply place and picked up the peices. I took a simple drawing and told the guy what I wanted to do. I think it could have been cheaper, but the guy new I couldn't find the stuff anywhere else, so he hosed me a bit. $9 for the "T". S'ok, still pretty dang cheap.

also, my drawing is pretty simple and quick. There are alo of others out there. Have a look. Also, my pic is just about real life size(before scanning in 3" top to bottom, not hoses)

and of course, standard disclaimer applies. If ya frig it up, I won't be fixing it. take it easy and use a boost guage.

 

[kingearl]

sweet man. Thats some nice info. The good thing is I would be able to grab all those parts free from work. Thanks

 

[Bohrn]

u got it man. Canada kicks ass

 

[BigJohnGSX]

Hey there, I'm new to these forums with my question about my 95 GSX. All I have to do is buy a boost controller, plug it up and have 24lbs of boost at the end of my foot?????/

Thanks for any help I get.

 

[92rslaser]

I recommend the Hallman or the Joe P controllers because of the low price and how great they work.

 

[EuroGSTSpyder]

Originally posted by BigJohnGSX
Hey there, I'm new to these forums with my question about my 95 GSX. All I have to do is buy a boost controller, plug it up and have 24lbs of boost at the end of my foot?????/

Thanks for any help I get.

Well not that easy but almost*S* BUT...dont get the MBC installed until you have a real boost gauge to see how it doing on the boost level.The stock one sucks and cant be trusted for much at all..and you dont want to blow something right?So get a real boost gauge and hook it up before you go turning up boost any more.

And onemore thing...the stock BOV on a 2G wont hold much more then 12 psi..so even if you get a MBC and gauge you wont be able to turn it up much since the BOV will leak anyway.

 

[BoostinAWD]

I paid $100 for my MBC, at least mine is shiny and has a cool sticker to boot.

Hehe it works perfectly so I'm not complaining..

 

[larryd]

haha.. its like justification for the price.. its shiny

 

[boostineklipz]

Originally posted by BigJohnGSX
Hey there, I'm new to these forums with my question about my 95 GSX. All I have to do is buy a boost controller, plug it up and have 24lbs of boost at the end of my foot?????/

Thanks for any help I get.

24 psi on the stock turbo, whoa man...you trying to blow your **** up...but seriously do some more research before putting that thing in....try 15 or 16 psi on the stock turbo for one thing...you need to get a BOV like mentioned and a boost gauge then you can safly up the boost to 15 or 16

Brode UICP -$60
1G BOV- $50->
MBC-$50->
Boost Gauge->$50

about $200 and you are good to up that boost

 

[kylemoto]

Originally posted by Bohrn
sure, I got a brass "T" fitting, 2 brass nipples, one cap, one spring and one ball bearing. Total cost $13.58

I put the nipples in the bottom and side of the "t" and put them in real tight with sealer.

next the ball bearing was put in so it fit in the bottom nipple, closing off the hole.

Then the spring was cut to length. and the cap put on the top.

and then I drilled a 1/16th" hole in the body of the "T" near the middle. This is a bleed-off hole to allow excess pressure to escape. Without it, the boost pressure would not allow the ball bearing to close off the lower hole, and you would slowly loose boost.

I put mine in-line between the boost nipple on the turbo outlet, and the nipple on the wastegate. When the boost pressure overcomes the spring pressure, the ballbearing moves outta the way, and allows boost to open the wastegate.

It took some adjusting, and some fine tuning, but now it is pretty good.

"nother tip, keep the hoses short and stiff. Longer, limper hoses create lag and spikes etc.

also, get a spring that is at least twice as long as you will need, so you can mess one up, and not have to go back to the store

Sorry, I don't have any measurements, I just went to a welding supply place and picked up the peices. I took a simple drawing and told the guy what I wanted to do. I think it could have been cheaper, but the guy new I couldn't find the stuff anywhere else, so he hosed me a bit. $9 for the "T". S'ok, still pretty dang cheap.

also, my drawing is pretty simple and quick. There are alo of others out there. Have a look. Also, my pic is just about real life size(before scanning in 3" top to bottom, not hoses)

and of course, standard disclaimer applies. If ya frig it up, I won't be fixing it. take it easy and use a boost guage.

Congrats Bohrn! Glad to see your design worked out so well. You might let the other guys know that your BC is a ball valve type, not a bleeder type, which means you get faster spoolup, quicker boost response, etc. although you stand an increased chance of boost spikes (but this will probably happen at low to medium speeds and the overshoot probably won't be too bad).

Kyle

 

[BatmanGSX]

Here is my MBC (this never get's old):

You must be logged in to view this image or video.

 

[Bohrn]

hehe, Batman, I figured you'd bring that thing out