Megasquirt Boostcontroler - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 03-31-2010, 10:53 AM   #21
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Sorry I thought your previous statement meant it wasn't broken! :(
richyvrlimited is offline   Reply With Quote
Old 03-31-2010, 11:11 AM   #22
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,819
Total Cats: 1,780
Default

no, I was saying if it weren't brokenz, i'd probably go build the second hall circuit.
Braineack is online now   Reply With Quote
Old 03-31-2010, 01:47 PM   #23
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

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.

Quote:
Originally Posted by stranges12712 View Post
so i just went out and bought a Forge MBC. This may be a dumb question but could i route a vac line all the way inside by the dash and put my mbc beside or under the dash and run the other vac line back to the turbo? Would that **** up the boost settings?
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.
AbeFM is offline   Reply With Quote
Old 03-31-2010, 08:22 PM   #24
Junior Member
iTrader: (1)
 
Join Date: May 2009
Location: Niagara Falls, ON
Posts: 433
Total Cats: 0
Default

Quote:
Originally Posted by AbeFM View Post
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.
LMAO. Well Forge was the cheapest one if you can believe that, buddy owns a performance store. I think it was 80$...meh. To much work to do all that. Il just keep her at 30lbs, just try to keep my foot light . 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.
stranges12712 is offline   Reply With Quote
Old 03-31-2010, 08:44 PM   #25
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,819
Total Cats: 1,780
Default

my car isnt, my 3 day old MS-III CPU is.
Braineack is online now   Reply With Quote
Old 04-05-2010, 05:38 PM   #26
Newb
 
Join Date: Apr 2010
Location: San Francisco
Posts: 24
Total Cats: 0
Default

interesting read on the boost controller likes/dislikes. I need to learn more about MS
gnx7 is offline   Reply With Quote
Old 04-06-2010, 04:14 PM   #27
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

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.
AbeFM is offline   Reply With Quote
Old 04-07-2010, 12:04 AM   #28
Junior Member
 
Join Date: Dec 2009
Location: Shelbina, MO (North East)
Posts: 335
Total Cats: 0
Default

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.
rweatherford is offline   Reply With Quote
Old 04-08-2010, 03:08 AM   #29
Elite Member
iTrader: (3)
 
AbeFM's Avatar
 
Join Date: Aug 2006
Location: San Diego, CA
Posts: 3,048
Total Cats: 8
Default

It's a testament to what a bad driver I am, but I find turbo lag the only way to get traction in an autocross. :-)
AbeFM is offline   Reply With Quote
Old 04-08-2010, 09:13 PM   #30
Junior Member
 
Join Date: May 2007
Location: Columbia, MD
Posts: 248
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
my car isnt, my 3 day old MS-III CPU is.
Have you gotten the hardware back together yet so I can load the bootloader for you?

Also, based on your post on the msextra forum, it seems like you're having better luck with the PID boost control on ms2.

Ken
muythaibxr is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
Any pnp megasquirt for 2001 Big_gumby WTB 0 09-30-2015 04:34 PM
1996 Turbo Build Goldwar DIY Turbo Discussion 2 09-29-2015 10:20 AM
First gen (white) megasquirt pnp 90-93 Miata firmware reflash Johnny Tater MSPNP 1 09-27-2015 01:38 AM
Megasquirt died mid operation psyber_0ptix MEGAsquirt 4 09-22-2015 10:35 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:32 PM.