Just wondering if any of you with Hallman Pro RX or any other MBC have to constantly adjust boost due to different temps. in morning and afternoon. I live in San Jose, Bay Area and have to turn boost down all the time or else I'll be boosting past my tuned 21psi. Does 49 Degree F to 65 Degree F make that much of a difference in cooler air for the turbo to effect boost that much? Just seeing if this is happening to anybody out there. Thanks.

 

I have the hallman pro rx and I never touch it. I am tuned for right around 25psi, in the mornings (30*F) I hit 27psi every once in a while. But then again I dont drive all that hard in the mornings because I am half a sleep so it doesn't really matter...

 

i just ordered my hallman so I should have some input in a couple of weeks

 

if you have an efficient setup then yes it will change, colder air is just more dense and since your by the water the humidity is probably always up as well, i have a hallman pro RX and i have to adjust mine constantly...but its In-cabin so i dont feel like its that bad

 

ive never touched mine once and i live in jersey

 

I run the hallman pro. I have it set to 23psi and never adjusted it. I've had it for 4 years.

 

I had to turn mine down over the winter, I plan on going back up a turn here soon. I do find part throttle at highway speeds it seems to spike real high, 27lbs or so. I'm tuned for more like 21lbs. I just try to keep my eye on the gauge and not let it do that by downshifting if need be.

 

my 0.02 log ur boost to make sure ur boosting at what u are, never go by eyeballin the gauge method, most gauges tend to be off 1-2 psi in some cases even more.

 

I have a hallman as well and its been great for a year. I was boosting 22 psi. The last week i havent been able to boost above 13 lbs.....any ideas. I cant find a vacuum leak or anything. please help!!!!

 

I live in the valley, Sacramento. I used to adjust my mbc all time as well. I'm tuned at 21psi . Now its close enough to where i just leave it alone. In the mornings and evenings I see 21-22 psi. In the afternoons when temp is warmer I usually see 19-20 psi.

 

I guess the best bet is to just get an in cockpit adjuster kit for the hallman mbc. Does anybody know if an EBC will maybe solve this problem?