[Diy_efi] Water metanol turbo assist - was Argon turbo

[Grant Beaty]

Do you know some formulas to size turbine wheels and housings? If so, please
share.... I've never been able to find any info on that.

Thanks,
Grant Beaty

----- Original Message -----
From: "Matt Porritt" <porrittm at anet.co.nz>
To: "DIY-EFI" <diy_efi at diy-efi.org>
Sent: Tuesday, January 07, 2003 12:43 AM
Subject: Re: [Diy_efi] Water metanol turbo assist - was Argon turbo


> Ok.. To go to 9k on a 2l I pressure you will be looking towards a 0.86
> housing with big comp and a 76 trim exh wheel?
>
> Does you application rile out nitrous?
> I can't rant enough about the advantages of it with big turbos ;)
> --
> Matt Porritt
> RC Race Cars and Supplies
> ICQ #22776813
>
>
>
> On 7/1/03 11:53 AM Ohio Benz wrote
>
> > I agree! Someone here must have some more suggestions
> > based on scientific data?
> > Regarding matching of turbo to application/engine. I
> > think there's always an area of sacrifice, you can't
> > just have it all.  If I wanted to come screaming out
> > of the hole a small AR turbine like a 48 (for a 2.0L)
> > will do the trick. However when I hit about 5K, it's
> > done and opening the wastegate to keep the poor thing
> > from spoooling to destruction doesn't make any more
> > HP.
> > So in order to keep screaming into the 9K redline we
> > are looking for...it takes a bigger AR housing. Now to
> > help us get out of the hole we are running a higher
> > base CR and a head that flows a lot of air - but those
> > first seconds till we get past 7psi are still gonna
> > kill us!
> >
> > Now WI into the exhaust would ONLY happen for seconds
> > at WOT, ONCE during a pass or hard acceleration. So
> > washing a turbo etc are all not issues.  Issues could
> > be the boiling off of the water between the jet and
> > the check valve - whether that creates a vapor lock is
> > another subject too.
> >
> > My question still remains - how do I calculate how
> > much H2o flow (ml/sec) I would need? EGT will have to
> > be a factor in vaporization plus an estimate of
> > exhaust flow under WOT conditions.
> >
> > Second question is more experimental - nozzle size for
> > proper atomization.  I'm assuming that once I know
> > flow, and have a pressure value, this again is a
> > calculatable item.
> >
> > So please help me with (still)the first question!
> >
> > Thanks!!!
> >
> > Date: Mon, 06 Jan 2003 22:29:35 +1300
> > Subject: Re: [Diy_efi] Water metanol turbo assist -
> > was Argon turbo
> > From: Matt Porritt <porrittm at anet.co.nz>
> > To: DIY-EFI <diy_efi at diy-efi.org>
> > Reply-To: diy_efi at diy-efi.org
> >
> > Come to think of it, no water will end up in the sump
> > if its going into
> > the
> > exh housing!! :)
> >
> > Someone here must have some more info on this (or
> > around the place) I
> > for
> > one am awaiting an answer, hopefully not by my own
> > experimentation.
>
>
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> Diy_efi at diy-efi.org
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