The factory ECU's are better than the aftermarket ones. You have lots of factory tested, high resolution maps,limp home mode, compensation for sensor fail etc, etc.. And they are free (or not much extra) with the half-cut. The only thing they lack is those high boost maps and the ability to run bigger injectors.
I thought a unichip or other piggyback ECU with FCD could be used for the high boost areas. But if it is going to cost more than $500 + the frigging around, I agree you are better buying an aftermarket ECU for >$1K Do the Porsche BOV's hold more than 20psi without leaking? Do you know how much they cost? Nick > > From: Tony Bryant <[EMAIL PROTECTED]> > Subject: Re: DIY Fuel Cut Defender > Date: 01/05/2002 17:59:52 > To: [EMAIL PROTECTED] > > > > Questions.... > > How do you compensate the A/F ratio 'properly' for the extra boost with the > > FCD? Do factory FCD's compensate for this lean-out at high boost. > > A rising rate pressure regulator seems a bit dodgy(?) > > Will a 'piggy-back' uni-chip fit the bill? how much do these cost? What > > about re-programming if you upgrade after the initial installation? > > I'd rather not stuff about with the factory ECU, if the factory ECU won't > do the job. Go buy a Haltech or Wolf or whatever and do it properly. Anything > else is a hack job. > > e.g. A FCD won't retard timing to suit the extra boost. > > > > > I am also looking into the bosch (Porsche, audi) BOV. how much do they > > cost? Do they perform as well as the polished doof-doof ones? > > I know a bunch of knowledgable Supra people who all run them. They're cheap, > reliable and they work well - and If you're a grown up you'll appreciate the > (relative) silence. > > This message was sent through MyMail http://www.mymail.com.au --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
