Mazda Rotary Club

General => General Technical => Technical Stickies => Topic started by: SmbFD3S on July 06, 2009, 12:19:42 PM

Title: Hi/Lo Switch for Profec B Spec 2
Post by: SmbFD3S on July 06, 2009, 12:19:42 PM
Just found this on the t\'interweb and though some of you would/may find it useful :D
 
http://www.skylinesaustralia.com/forums/Switch-Profec-Spec-Ii-t209903.html (http://www.skylinesaustralia.com/forums/Switch-Profec-Spec-Ii-t209903.html)
Title: Hi/Lo Switch for Profec B Spec 2
Post by: Prof on July 06, 2009, 12:54:32 PM
The only thing that really bugs me about the Spec 2 is that the remote input toggles between the 2 modes.
 
It would have been so much more useful if you could select Hi or Lo specifically, for instance if you are running WI and run dry, you can force the boost controller into Lo mode.
 
Never mind...
 
Excellent find by the way :Thumbs-up
Title: Hi/Lo Switch for Profec B Spec 2
Post by: hairyhoover on July 06, 2009, 07:30:42 PM
cant you just cut the live to the boost controller using a relay? would this drop the boost to wg pressure?
 
ps good find scott!
Title: Hi/Lo Switch for Profec B Spec 2
Post by: Prof on July 06, 2009, 07:38:58 PM
Quote from: hairyhoover;623561cant you just cut the live to the boost controller using a relay? would this drop the boost to wg pressure?
 
ps good find scott!

That\'s the idea I\'ve come up with - as my wastegate spring will still let it run between 7 and 9 psi depending on load.
Title: Hi/Lo Switch for Profec B Spec 2
Post by: hairyhoover on July 06, 2009, 08:35:57 PM
Im going to use the dd3s it cuts power to the boost controller when theres a low level and also when the flow drops below a certain amount.
 
Looks great!