over-run valve? [was: Re: 4ksq turbo conversion]

Ken Keith auditude at neta.com
Sat Dec 2 11:45:45 EST 2000


Oh, I see.  I was calling that the deceleration valve.  I'm familiar 
with this one.  I guess you don't need one of those if you are not 
going to be shifting, but I haven't thought that one all the way 
through.

It looks like only one wire goes to it, besides all the correct fittings 
and such to hook it up.  So, much later, if I should decided to add 
one, it may be possible.  I wonder if there is a wire or a pinout at 
the ECU for this.

Thanks for the info!

Ken

Ameer Antar <ameer at snet.net> wrote:
>
> SJM does make a quick mention of it here:
> http://www.sjmautotechnik.com/vac.html#stall
> 
> but the over-run valve opens, creatinag a vac. leak and cutting off most 
> fuel when the throttle valve is closed, the engine is above 1400rpm, and if 
> it's warm enough. The ECU determines this and is meant to reduce fuel 
> consumption when you shift gears. I don't think you actually need it, but 
> I've never had one and couldn't say if you really could live w/ or w/o one.
> 
> -ameer
> 
> 
> At 11:38 AM 12/2/2000 , you wrote:
> >Thanks Ameer,
> >
> >I've never heard of the over-run valve, what is it?  I didn't see that on
> >SJM's site.  Is it there?
> >
> >Thanks,
> >
> >Ken
> >
> >On 1 Dec 00, at 19:24, Ameer Antar wrote:
> >
> > > I think they're similar, but not exactly the same. The auto doesn't have
> > > the over-run valve on it which the stick version does. The ecu sends a
> > > signal to the over-run valve to tell it when to go on. Worst case would be
> > > nothing going to the over-run valve, and it wouldn't work, but some can
> > > live w/ that...
> > >
> > > -ameer
> > >
> > > At 06:52 PM 12/1/2000 , you wrote:
> > > >"Ken Keith" <auditude at neta.com> wrote:
> > > ><snip>
> > > > > Let me just confirm what I think I know about using auto cars for
> > > > > donors:  I have to get a flywheel, and swap the pilot bearing in the
> > > > > driveshaft.<snip>
> > > >
> > > >I meant, pilot bearing in the CRANKshaft, of course.
> > > >
> > > >I'm so excited!
> > > >
> > > >Are the computers identical, as in I can do the same stuff to the
> > > >auto ECU as I could if it were a stick?
> > > >
> > > >Thanks,
> > > >
> > > >Ken
> > >
> > >
> 
> 





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