[s-cars] What about a sequential turbo

Chris Covington malth at umich.edu
Mon Jun 17 14:55:28 EDT 2002


Why not just disconnect the turbo all together if you're going to get a
blower?  You'd then have equal boost at all RPMs, given a Roots-type
blower and not a centrifugal (Vortech, ATI, Paxton) type.  Or is it better
to have more boost at high RPMs and lower boost at low RPMs (which is how
I'd imagine a supercharged and turbocharged engine)?

Also, is it easier to implement sequential turbos (low + high) ala RX7 vs.
super+turbo?

Chris
'91 200q20v


On Mon, 17 Jun 2002 FvAMI at aol.com wrote:

> --
> [ Picked text/plain from multipart/alternative ]
> In a message dated 6/14/02 9:04:15 PM Pacific Daylight Time, S4audinut writes:
>
>
> > The trick way is with a supercharger which has a clutch which cuts it off
> > about 3krpm and a bigger turbo than stock takes over. If you are going to
> > gee whiz, go all the way. I am having enough trouble w/only 1 turbo.
> > :-)
> > Rod
> >
>
> I agree as long as you have some type of bypass when it switches off and how
> would you mount it and then you need the specialized belt. A second turbo
> with an integrated wastegate could be controlled via an aftermarket
> controller with some additional exhaust and intake pluming. It seems that a
> few have spent a lot of money getting very high horsepower but none (to my
> knowledge) has addressed the low end torque question.
>
> Best regards,
> Feico van der Laan
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