Megasquirt Boostcontroler
03-31-2010, 12:47 PM
#23
Why is your car always borken? :-P Don't feel bad, I'm building a new motor because I'm just... suspicious about mine. And because I like horsepowerz.
Forge, wow, fancy. I'm a big fan of the Cheap. Just ask any girl I take out. :-) That said, much better than running the lines in the cab, which will give you overshoot and poor control.... Run a long cable into the cab, the kind you can twist, like a speed cable. I've heard of people do this and they are happy about it.
Another option, JoeP does this - he puts a couple solenoids in the cab with an MBC each, and energizes one or the other depending what boost he wants.
Personally, I just tune for high boost and alter boost with the throttle.
Another option, JoeP does this - he puts a couple solenoids in the cab with an MBC each, and energizes one or the other depending what boost he wants.
Personally, I just tune for high boost and alter boost with the throttle.
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03-31-2010, 07:22 PM
#24
Why is your car always borken? :-P Don't feel bad, I'm building a new motor because I'm just... suspicious about mine. And because I like horsepowerz.
Forge, wow, fancy. I'm a big fan of the Cheap. Just ask any girl I take out. :-) That said, much better than running the lines in the cab, which will give you overshoot and poor control.... Run a long cable into the cab, the kind you can twist, like a speed cable. I've heard of people do this and they are happy about it.
Another option, JoeP does this - he puts a couple solenoids in the cab with an MBC each, and energizes one or the other depending what boost he wants.
Personally, I just tune for high boost and alter boost with the throttle.
Forge, wow, fancy. I'm a big fan of the Cheap. Just ask any girl I take out. :-) That said, much better than running the lines in the cab, which will give you overshoot and poor control.... Run a long cable into the cab, the kind you can twist, like a speed cable. I've heard of people do this and they are happy about it.
Another option, JoeP does this - he puts a couple solenoids in the cab with an MBC each, and energizes one or the other depending what boost he wants.
Personally, I just tune for high boost and alter boost with the throttle.
. I like my EBC but she went all fucky last year i will try to fix her at the dyno this year if not il just the forge, alot easier to operate but you just have to turn it up or down and usually when you have the boost down is when some tool wants to race.
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04-06-2010, 03:14 PM
#27
Oh, the ones you build from McMaster parts are like $15-30 depending if you throw a light weight ball in there, etc.
30 psi is quite a bit! But yeah, control it with the foot, or a single solenoid and two MBC's. Won't cost a hell of a lot.
You could also go the "calibrated leak" route - then your solenoid can be much smaller. Put a small orfice (0.020"?) on a T with a solenoid, and that leak will let the wastegate respond slower and give more boost.
30 psi is quite a bit! But yeah, control it with the foot, or a single solenoid and two MBC's. Won't cost a hell of a lot.
You could also go the "calibrated leak" route - then your solenoid can be much smaller. Put a small orfice (0.020"?) on a T with a solenoid, and that leak will let the wastegate respond slower and give more boost.
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04-06-2010, 11:04 PM
#28
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Join Date: Dec 2009
Location: Shelbina, MO (North East)
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If you are auto-x or tracking I'd say controlling boost with your foot can be interesting. My datalogs show me doing most of a good auto-x run with small spikes to 100 % TPS and much of the acceleration during runs is around 60 % TPS with 10-11 PSI in 2nd gear. So anything above 50% basically = full boost.
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