With ever rising gas prices, I'm trying to cut fuel costs. This is what i'm wanting to do:

Is there a way that if I am driving to work I can make it that to where i'm not boosting over X psi? However if I pull up to stoplight or turn down a curvy road and want my max boost back, I can just turn the knob (or button) back up.

Will this even help fuel cost? Is there anything else I would have to get to be able to do this?

Thanks,
Chris

 

get a mbc and turn it all the way down. get a forge unos mbc. use light sprng. tun it all the way down. i think 14 or 15 psi is lowest. or just run waste gate pressure

 

Alright, I went to buschur and found a forge mbc, is there one that I can put inside the car so that I can change it without getting out of the car and popping the hood?...

 

hallman sells a manual boost controller (MBC) that allows in-cabin changes. There is a cable leading to the interior that allows for adjustment. However, you can turn the knob 3 full turns for example, and be hitting an undesired boost level.

Or you could go with an electronic boost controller (EBC) which seems to line up with your criteria better.

I just use my right foot to control boost if I'm worried about gas mileage. That works fairly well for me. How often do you actually go WOT on the way to work though?

 

Hey thanks guys, actually on the crappy 2 lane highway I drive on you have to go WOT pretty commonly, apparantly 90 year old women like to drive on the particular highway during morning rush hour. I just don't want to lay down 30 psi of boost when passing a little old lady in an escort.

I am under the assumption the fuel will automatically adjust itself to the level of boost?

But you're right, the ebc is what i'm after...

Thanks again,
Chris

 

The ecu calculates how much fuel to add based on a lot of parameters, but mainly airflow as seen from the mass air sensor (MAS) which is pretty linear as far as boost level goes, so your thinking is correct.

If you're really concerned about fuel economy, I'd look into getting a retuned ecu as there is a lot of fuel economy that can be squeezed out of the stock maps.

 

No, you need to be tuned for drastic changes in boost. If you want to save gas, then just don't boost. Lowering your boost is only going to have a very minimal effect on gas mileage.

 

its pretty easy to drive without going over 10 psi, dont accelerate like you are racing at the track and you will be fine.... if you drive it normal, you either dont get into boost or dont go about 5 lbs.

 

Alright, I guess I'll just have to use moderation...thanks for the help guys.