Dave, tym or jerrod, (or others)

i have had teh BR440 on my car for about 2 weeks now and i've been troubleshooting it for about 1.5 weeks now, trying to figure out why i only see 15 psi (wastegate pressure) boost in 1st-3rd, then can hit 18 psi tapering to 15. Is my hallman jacked up or what? everything runs fine, it spools great pulls hard.

I thought that my Stock BOV might be leaking, and i think it was..as it doesn't drop as rapidly, however upon spool up in 1st-3rd it hits full boost and is pegged at 15 psi..

HELP?

 

That's weird. Do you have your MBC hooked up to the WGA and compressor housing directly, or do you route the BOV side? I'm assuming your stock turbo was hooked up the same way, correct?

Also, if you're using the BOV, is there a brass pill still inline immediately next to the compressor side? Tell us more about how your MBC is hooked up.

 

i'm hooked up to the compressor housing to the wastegate, with the boost controller in the middle

and i'm using all new lines... stock vac lines aren't big enough

 

I am curious as to why you are limiting your boost to such a low 15 psi? That turbo was never really configured to run at that low boost level. If running at 18-20psi, the boost should be much more stable between gears. It is not uncommon to see an initial boost spike (especially in higher gears) when running manual boost controllers. You may have simply not been getting a spike in 1st through 3rd.

 

If you're hoooked up that way, the pill doesn't matter, becasue you can bleed off directly, which IMO is the best way to do it. I wish I lived a little closer to try and help diagnose it. Since the MBC is in the middle, is there another one (friend's) you have easy access to that you could swap with and try?

 

i'm trying to run 20 psi, but i just can't

so maybe i'll crank the boost controller and see what i get in 1-3

 

Tym-

I think he's saying that he cannot achieve more than 15psi in those gears, no matter how much he opens the valve up.

 

Nastea, what spring are you runing in your Hallman? The boost levels you're hitting are the same as what I was hitting before I swapped to the heavier spring.

Steve

 

i'm using the heavy spring, it use to work fine on the stock turbo, i'm gonna pull it off my evo tonight and check it out..)

 

If you're hooked into the compressor for the psi side of your boost controller, I'm not sure that is correct. I believe that boost controller is a type that requires a different vaccum source. I know when I had my AMS boost controller, Martin told me that the connection from the compressor would not work, and it had to be tapped off of the BOV line instead for it to work properly. Try capping off your compressor line and T off of your BOV line into the same place to your boost controller. Make sure to turn it all the way down before you try it for the first time.

 

that's why i'm specifically asking dave and tym and crew, i am not saying that won't work but this is there turbo so...

 

I had a Hallman when my car was a Buschur Stage 1, and Tym told me to hook it up the exact same way Nastea's is currently. It worked perfectly, and never spiked or tapered down, just held rock solid to redline.

 

Although I'm running the stock turbo, I'm feeding my Hallman directly off the tap on the compressor outlet pipe. There's been alot of debate as to which where to tap for a boost signal for an MBC but I really think it's a matter of preference. In my case it works perfectly, with no boost spikes or significant taper.

 

i think my hallman may be the issue...

 

ok i fux0red with my hallman, i gave it a good turn, started the evo up and hit the boost. ban 20 psi in a 1-3, i noticed a "click" when i turned it, i think the spring maybe getting caught up?

i dunno i took it off my car and now its in my hand i dis-assembled it to check it out, only thing i noticed is there is a little bit of "calcium" build up on the spring but it works fine..