Subject: Re: [Diy_efi] This turbo assist stuff, Questions!

[John Petersen]

>From what I understand the classic "anti-lag" systems used a
solenoid/similar device to let air into the engine, but instead of
cutting fuel to some cylinders, it put a lot of retard on the timing,
the exhaust gas was very hot and having so much retard didn't cause the
engine to accelerate. The open throttle and presence of exhaust gas
spooled up the turbo(s) nicely.

There are dangers to this, of course. The exhaust is so hot most
standard steels won't take it for long. Risk of mis-firing is pretty
high too if I recall correctly.

Hope this helps
-John


-----Original Message-----
From: diy_efi-admin at diy-efi.org [mailto:diy_efi-admin at diy-efi.org] On
Behalf Of Hugh Keir
Sent: Friday, January 03, 2003 1:56 AM
To: diy_efi at diy-efi.org
Subject: Re: Subject: Re: [Diy_efi] This turbo assist stuff, Questions!

I have been thinking further about this for getting some boost when at
standstill.

I wondered about the possibility of a solenoid to open the throttle to
create some revs, cut the fuel to some of the cylinders and use the non
firing cylinders as an air pump.

The Methanol / Water should hopefully ignite from the cylinder(s) that
are
functioning normally and the oxygen that is now in the exhaust manifold
will
burn enough to boost the turbo.

Ohio, I agree with your post about leaving the WI firing into the
exhaust
manifold until reasonable boost is present when you can switch to normal
WI.

Hugh


----- Original Message -----
From: "Ohio Benz" <ohiobenz at yahoo.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, January 02, 2003 5:30 PM
Subject: Subject: Re: [Diy_efi] This turbo assist stuff, Questions!


> Jumping back into the original topic - turbo spooling
> assist....
> I would like to try the WI into the exhaust manifold
> prior to turbo.  Plans had been for WI into the intake
> post IC, after about 5-7 psi was reached. (the CR is
> 10:1) So it would almost seem a natural to shoot WI
> into the exhaust under WOT until reaching 5 psi, then
> shuttling the valve over to intake injection.
> Does anyone have any suggestions for flow rate?? -
> running a 2.0 with agressive ported 16v head and a T3
> 63AR turbine housing. Pump will be a 100psi Shurflo.
>
> Thanks!!
>
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> http://mailplus.yahoo.com
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
>


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi