ignition retard on boost on n/a breakerless ignition ???????
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is it possible to use original management on a n/a car thats been turboed with breakerless ignition. i know old school distributors could be retarded manually but is there any way on a fixed breakerless system ?
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Turbocharged cars generally have a rising rate fuel pressure regulator - the higher the boost pressure the higher the fuel pressure upto a set maximum
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#3
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Originally Posted by Graceland
Turbocharged cars generally have a rising rate fuel pressure regulator - the higher the boost pressure the higher the fuel pressure upto a set maximum ![Clap](https://passionford.com/forum/images/smilies/9c-clap.gif)
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#4
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so if i get an adjustable rising rate fpr and some 635 injectors that should sort fueling then
anyone know an easy way to retard ignition on breakerless ignition ? from what ive read need retarded ignition for when on boost
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anyone know an easy way to retard ignition on breakerless ignition ? from what ive read need retarded ignition for when on boost
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As chip, dont know if still available but years ago turbo technics had a diaphragm type vacuum two way advance unit that advanced under vacuum and retarded the ignition when on boost, when i did a escort cvh in 93, for some reason had to use a bosch type dizzy and the advance linkcage rod had to be cut to give the required amount of ignition retard. i think the old audi's and saab had this advance unit. i was on the limit of det @ 12psi.
Regards Dave R.
Regards Dave R.
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#8
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The dissy boost retard capsule is off early turbo Saab's. i convert them to fit other dissy's, abit like TT used to.
But you can run a Micro Dynamic's EMs 5 or 6, to retard once boosting, and the 5 is adjustable to how much retard, @ what rpm, and also allows for the timing to be re advances after the det threshold has passed.
But you can run a Micro Dynamic's EMs 5 or 6, to retard once boosting, and the 5 is adjustable to how much retard, @ what rpm, and also allows for the timing to be re advances after the det threshold has passed.
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Originally Posted by Chris@torque of the devil
MSD do a boost timing control unit, it automatically retards a preset amount of timing per pound of boost IIRC.
it was called a boost timing master
it was called a boost timing master
cheers mate checked them out have to be run with msd management. they do a stand alone controler but its for points systems only
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il keep searching the net though i know what im looking for now
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#12
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Here's the one i have on my TT now. fitted with late xr2 dissy setup, and grpA coil.
http://modifying.demon-tweeks.co.uk/...EMS5&grp=RC014
and here's the cheaper version.
http://modifying.demon-tweeks.co.uk/...EMS6&grp=RP111
http://modifying.demon-tweeks.co.uk/...EMS5&grp=RC014
and here's the cheaper version.
http://modifying.demon-tweeks.co.uk/...EMS6&grp=RP111
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