[s-cars] Subaru Intercooler question - Add a fan?

[calvinlc at earthlink.net]

>Can't run leaded fuel and a cat- running catless is a no-go in PA- annual
>emissions inspections.

Well...at least for one day a year.

--Calvin


-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com]On Behalf Of Taka Mizutani
Sent: Wednesday, July 12, 2006 3:03 PM
To: Joe Pizzimenti
Cc: lebakken1 at netzero.com; s-car-list at audifans.com
Subject: Re: [s-cars] Subaru Intercooler question - Add a fan?


I would not necessarily tune for that intake temp- that's running on the
ragged edge.

Even if you were, where are the safeguards in your tuning process so that if
you have a failure
you don't kill the engine?!?

As for the weight, I don't agree- WRC has been using this for quite a while
and they are already
running a huge front mount intercooler on the WRC STi.

Can't run leaded fuel and a cat- running catless is a no-go in PA- annual
emissions inspections.

Taka


On 7/12/06, Joe Pizzimenti <joe.pizzimenti at gmail.com> wrote:
>
> And tons more weight above the center of gravity.
>
> Leaded fuel has no such downsides and it's foolproof.  I may be a bit
> biased since I've been through the dead water injection pump and have the
> head gasket to prove it, but messing around with tuning for an assumed
> intake temp drop is higher risk than just going with a front mount
> intercooler and putting good gas in the car to begin with.
>
> Joe
>
>
> On 7/12/06, Taka Mizutani <t44tqtro at gmail.com> wrote:
> >
> > Yes, the STi does have a water sprayer for the intercooler. However in
> > stock
> > form it is an external spray, which is of limited use.
> >
> > I would actually convert to an internal water injection setup, that will
> > yield a much greater intake temp drop.
> >
> > Also, as I said in another post, the water tank is pretty small- only 2
> > or 3
> > liters, the Spec-C giant tank will be much more useful for trackdays,
> > esp.
> > if you implement the full Spec-C setup that automatically sprays
> > according
> > to injector duty cycle (IIRC). With factory electronics and a conversion
> > to
> > water injection, you can have a really sano setup.
> >
> > Taka
> >
> >
> > On 7/12/06, Steve Powers < sbpowers at gmail.com> wrote:
> > >
> > > The STI already has a water squirter for the intercooler. (my
> > > brother's STI does)
> > >
> > > Steve Powers
> > >
> > > On 7/11/06, lebakken1 at netzero.com <lebakken1 at netzero.com> wrote:
> > > > Chris writes:
> > > > <<<<<<<<<<<<<<<<
> > > > Friend of mine owns an STI, he's contemplating adding
> > > > some sort of fan to blow through his intercooler in an
> > > > attempt to lower intake temps.
> > > >
> > > >
> > > > Questions are:
> > > >
> > > >
> > > > 1. would this actually lower intake temps during stop n go driving?
> > > >
> > > >
> > > > 2. Are there any good fans that are 6 1/2 in diamter max?
> > > > >>>>>>>>>>>>>>>>
> > > >
> > > > Chuckle. (A polite ROTFLMAO in my own mind). Oh make it stop.
> > > >
> > > > Only because of your impeccable taste in Scirocco's Chris, do I know
> > you
> > > are not contemplating this "mod" for your own purposes.
> > > >
> > > > Enough of the BS. To the questions!
> > > >
> > > > 1. Yes. For a specific ambient temperature, these intake
> > temperatures
> > > would likely be lower than any of the other, nearby turbocharged cars
> > going
> > > nowhere in that same traffic jam. This, however, would be primarily
> > limited
> > > to the "stop" part of stop-n-go driving equation, and also at
> > > old-man-with-a-walker type velocities. When actually in the "go" part
> > of
> > > stop-n-go, i.e., speeds above - say - 30mph, said intake temperatures
> > > would likely rise above the other turbo cars due to the mondo
> > restriction
> > > that has been "engineered" into the air flow path for the intercooler.
> > This,
> > > unfortunately, is when cooling of the charge air is most desireable.
> > When
> > > the engine is under load. When you are actually going somewhere. Maybe
> > even
> > > in a hurry. A more useful "intercooler cooling tool" - say that five
> > times
> > > fast - would be to tap off the windshield washer nozzles with a
> > switched
> > > solenoid valve to give the intercooler a quick bath. This would
> > increase
> > > conductivity, in addition to the latent thermal gains to evaporation,
> > and
> > > could be done during the go part and before the stop part. This could
> > also
> > > be done with an old windex bottle in one of the cup holders if one was
> > so
> > > Mcgyvered.
> > > >
> > > >
> > > > Must.....stop......now.
> > This.....is.....hurting.....my.....brain......
> > > >
> > > >
> > > > 2.) With reference to the above.....WHY?
> > > >
> > > >
> > > > Should your friend decide this is a worthwhile endeavor, I will
> > donate
> > > the thermocouples in order to help quantify the results.
> > > >
> > > >
> > > > Regards,
> > > >
> > > >
> > > > Craig Lebakken
> > > > 94S4
> > > >
> > > > _______________________________________________
> > > > S-CAR-List mailing list
> > > > S-CAR-List at audifans.com
> > > > http://www.audifans.com/mailman/listinfo/s-car-list
> > > >
> > > _______________________________________________
> > > S-CAR-List mailing list
> > > S-CAR-List at audifans.com
> > > http://www.audifans.com/mailman/listinfo/s-car-list
> > >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
> >
>
>
_______________________________________________
S-CAR-List mailing list
S-CAR-List at audifans.com
http://www.audifans.com/mailman/listinfo/s-car-list