MBCs: What you don't like
I have had my Dejon Tool MBC on my Evo for about three years. I have been through about three different bolt-on turbos since the Dejon install. It still works. Zero problems to report. I see no reason to change it.
I've had all 3 hallmans on my car and the hallman pro is the best followed by hallman es then hallman pro rx.. The pro rx has very touchy when ajusting boost so changes in weather affect it. The more turns it takes to adjust boost the more stable it is. The hallman es is just as good as the hallman pro but is a pain to adjust.
Some interesting info on here. The forge unos boost controller on my brothers car worked well at holding boost in the summer. Now in the ice cold northeast air it spiked at 27 psi when it was set at 23 psi. Might be worth investing in a hallman
So correct me if I am wrong here guys. Since the tempatures (under the hood) would be effecting the spring located inside the mbc thus effecting the stability of the boost, then wouldnt having an in cockpit mbc adjustment make the boost alot more stable?
it would help the spring to be more resistant to ambient temperature changes, but the added hose length of locating the MBC in the cockpit would lead to boost spiking
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Joined: Mar 2004
Posts: 1,635
Likes: 3
From: Butt**** Nowhere
I've seen a +1.5 psi jump from my Hallman Pro in the winter. Anyone know if the Perrin/NewBuschur MBC changes with cold weather.
It's not that big of a deal, but if there was one that was dead consistent, that would be the one to get.
It's not that big of a deal, but if there was one that was dead consistent, that would be the one to get.
I have the Hallman thats adjustable inside the car. Its great for that reason, but the boost changes with the temperature. I am able to hold 1.5 bar (almost) to redline so that is good. It spikes to just over 1.5 bar
The Hallman Pro... Cheaper one.... Only has one spring thats what makes it so good. The more turns it takes to adjust boost the more solid itll be. MBC's that only need 1/2-1 turn per pound are going to be the worst with controlling boost.
Cheers!
You'll always get just a little spike no matter what in cold weather, its just find the MBC that spikes the least.
Keep in mind guys I dont sell the Hallman MBC's so this isnt a sales pitch. I've been trying to get Steve to start carrying them since the cars I tune with Hallmans always have the best results and never get a huge spike so that keeps your tune in check. Good for you and your car so you can beat on it anytime, any temperature.
Cheers!
1.5 jump in snow weather is very good.... Most others will jump 3-4 pounds....
You'll always get just a little spike no matter what in cold weather, its just find the MBC that spikes the least.
Keep in mind guys I dont sell the Hallman MBC's so this isnt a sales pitch. I've been trying to get Steve to start carrying them since the cars I tune with Hallmans always have the best results and never get a huge spike so that keeps your tune in check. Good for you and your car so you can beat on it anytime, any temperature.
Cheers!
You'll always get just a little spike no matter what in cold weather, its just find the MBC that spikes the least.
Keep in mind guys I dont sell the Hallman MBC's so this isnt a sales pitch. I've been trying to get Steve to start carrying them since the cars I tune with Hallmans always have the best results and never get a huge spike so that keeps your tune in check. Good for you and your car so you can beat on it anytime, any temperature.
Cheers!
Should i be concerned by the sensitivity of the Hallman Pro RX? I figure for the little price difference to go with what I thought was the "better" product you know?
i have had my perrin for 2 years and no problems to report. its pretty sensitive but i've been able to tune it over 28psi back when i thought boost was everything lol. i like it no spiking very consistant.