[Diy_efi] Water metanol turbo assist - was Argon turbo assist

[Hugh Keir]

Not wanting to hijack the original Argon thread.

I use a 50 : 50 water methanol mix in my water injection system.

If you were to add some air and some of the 50 : 50 water methanol in the
exhaust manifold pre - turbo, it might be possible to create even more boost
with the only additional requirement being an air pump and some additional
plumbing and valves from the water injection pump.

Given the comments about how cold methanol burns it might be kinder to the
turbos than traditional rally car anti-lag systems that retard the ignition
and burn extra petrol in the exhaust to create the boost.

Any thoughts?

Would nitrous nozzles help mix the air and water / fuel for a good burn?

Hugh

----- Original Message -----
From: "Grant Beaty" <gbeaty at ufl.edu>
To: <diy_efi at diy-efi.org>
Sent: Saturday, December 28, 2002 10:40 PM
Subject: Re: [Diy_efi] Argon turbo assist.


> > Injecting water into the exhaust upstream of the turbine has the
> equivalent
> > effect of a temporarily smaller A/R ratio turbine housing.
>
> Very interesting... Is there any info online somewhere about this? In the
> achives? (I've searched, but the problem with the achives is that most
> posts' subject matter deviate from their subject quite a bit, much like
this
> one).
>
> I take it water injection also has the same effect? Or almost anything
that
> will vaporize?
>
> Thanks,
> Grant Beaty
>
> ----- Original Message -----
> From: "Greg Hermann" <bearbvd at mindspring.com>
> To: <diy_efi at diy-efi.org>
> Sent: Friday, December 27, 2002 3:02 PM
> Subject: Re: [Diy_efi] Argon turbo assist.
>
>
> > At 4:11 PM 12/27/02, William Shurvinton wrote:
> > >Water expands when vapourised. This does lower temps a little, but the
> > >increased velocity/mass flow rate more than makes up for it.
> > >
> > >Better minds than mine have done the sums  and they do stack up.
> >
> > Injecting water into the exhaust upstream of the turbine has the
> equivalent
> > effect of a temporarily smaller A/R ratio turbine housing. It will
> > definitely speed up spooling, at the cost of some additional
backpressure
> > on the motor. That this is true is WELL proven (in the real world, not
> just
> > in calculations) in a number of tractor pulling diesels !! (Which have
> been
> > known to use _FAR_ larger, slower spooling  turbos than what are found
on
> > (most) cars !!)
> >
> > Ideally, one wants to mooodulate (reduce) the water flow as the turbine
> > speed picks up, and shut the water off completely once the turbine is
> > operating in the range where the nozzle is the ideal size. At that
point,
> > the H2O in the exhaust would be detrimental to performance.
> >
> > Greg
> > .
> > >----- Original Message -----
> > >From: "Grant Beaty" <gbeaty at ufl.edu>
> > >To: <diy_efi at diy-efi.org>
> > >Sent: Friday, December 27, 2002 9:47 PM
> > >Subject: Re: [Diy_efi] Argon turbo assist.
> > >
> > >
> > >> The water would increase the mass, but lower the temp and velocity.
> Isn't
> > >> velocity more important?
> >
> >
> >
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> >
>
>
>
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