[Diy_efi] New to list, have a question about speed density and turbos

[Eric D Byrd]

No actual experience, alas... but I have fairly broad theoretical
knowledge ranging from engineering courses from college to more specific
stuff picked up from websites, several different forums on EFI, Honda
performance, turbo sites.  Am currently working on putting a t25 on my 90
CRX Si, but having heard horror stories about blowing up engines from
turbocharging wrong, I decided to learn all about it before actually
doing it, and the more I learn, the more I see I need to know to do it
right.  The "ghetto" methods of fuel delivery and timing control are too
rough to do it safely and above all cleanly.  I am even researching ways
to boost, while keeping mix close to stoich, because the reason we have
emissions laws is that we have too many cars making too many emissions. 
You could justifiably call me a "tree-hugger".  The information I have, I
gleaned from dozens of other guys who do have direct experience with
turbos, and I am careful to file divergent information away until I find
out whose opinion is correct.  I am currently working on a patent
application for a rotary valve cylinder head, which will have no poppet
valves, no valve springs, no cam.  I started this project before I knew
there were already companies producing rotary valve cylinder heads, so I
know it's a great idea.

On Fri, 1 Nov 2002 11:22:53 -0600 "arnie" <arnie_ at charter.net> writes:
> I personally am enjoying the knowledge I have been gaining by 
> reviewing
> the posts of both you Adam, as well as well as Eric.  Although I'd 
> like to
> ask a question of both of you guys, so I'll have a better 
> understanding as
> to the potential amount of knowledge that I can gain from either of 
> you.
> That being, to what extent does your actual experiences with 
> turbocharging
> lie.  Thanks and take care.
> 
> GAS
> 
> ----- Original Message -----
> From: "Adam Wade" <espresso_doppio at yahoo.com>
> To: <diy_efi at diy-efi.org>
> Sent: Wednesday, October 30, 2002 11:51 PM
> Subject: Re: [Diy_efi] New to list, have a question about speed 
> density and
> turbos
> 
> 
> >
> > --- Eric D Byrd <klox at juno.com> wrote:
> > > I think my final goal is to set up boost fuel
> > > control with a wideband O2 and a feedback circuit.
> > > I.e., the equivalent of a second "closed loop" in
> > > boost.
> >
> > A great idea, if you don't mind running terribly,
> > terribly lean between upping the boost and the lean
> > exhaust gases getting read by the sensor.
> >
> > If it was really a good idea, don't you think a
> > manufacturer would already have tried it like that?
> >
> > O2 sensors in the exhaust are grat for setting cruise
> > mixture, which is basically what they are designed
> > for.  However, MAF and TPS sensors still get used a
> > LOT during normal driving, even when the car is well
> > warmed up...
> >
> > | Adam Wade
> 
> 
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> 


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