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Re: dual exhausts
On Tue, 20 Aug 1996, Graydon D. Stuckey wrote:
> On Tue, 20 Aug 1996, todd candey wrote:
> > So, it appears that the S6 is a car with an inline 5cyl, 20v turbo motor.
> > Correct?
> How do you divide 2 into 5 evenly? It wouldn't make alot of sense to
> split it 3 and 2 unless you sized the twin exhausts perfectly so that a
> smaller one had 2 cylinders and a slightly larger one had 3 cylinders.
> They other option would be to split one cylinder into two, but there
> would still be a chance that the split cylinder would flow differently as
> compared to the rest of the cylinders. The only other option would be to
> have a small plenum after the headrer to mix all the gases, then run them
> down twin pipes, but that would defeat some of the purpose of duals in
> the first place.
> > Could a dual exhaust really make enough of a performance difference to
> > justify the related expense in hardware? Anybody ever thought about
> > retrofitting this to other 20v turbo cars, or even 10v turbo cars?
> A dual exhaust might be a little easier to package into the restricted
> space of the 5KCSTQ cars.
> > Could this be a way to get even less restrictive exhaust than say a
> > single 3" system?
> I think I'd still go for a 3" system. (or a 2.5" system with a separate
> 1.25" pipe for the wastegate only. Just for grins :-)
> Later, ----------------------------------------------------------
> Graydon D. Stuckey '85 Mazda RX7 GS, no toys
> email@example.com '86 Audi 5000 CS Turbo Quattro, has toys
> Flint, Michigan USA '89 Thunderbird SC, lotsa toys
You were talking splitting the ports......such a pain and a definate drop
in HP......evidenced in the siamesed ports of the older Capris.......