Toyota Supra twin turbo and water injection.

[Bruce Plecan]

-----Original Message-----
From: Chris Wilson <chris at maximum-bhp.u-net.com>
To: DIY_EFI Mailing List <diy_efi at efi332.eng.ohio-state.edu>
Date: Friday, April 02, 1999 1:19 PM
Subject: Toyota Supra twin turbo and water injection.

Need to measure your temps before you do anything.
Once that is done, add the water to the intake charge as close as possible
to the turbo.
The heat turns it into steam, and since it has the longest path posssible
the greatest amount of time to become equal amongst the incoming air, and
absorb heat.
  Sir Harry Ricardo in the "High Speed Internal Combustion Engine" covers it
well.
Just my 02 cents
Bruce


>I am in the UK where direct Japanese imports are common.I have a `94
>Supra twin turbo,Jap spec,with speed density measurement,not MAF as I
>believe the US spec ones are.I was wondering how to speed the old
>girl up a bit.Water injection is popular here in England,so I thought
>of adding that,if I raise the boost a bit.The Supra only has a small
>intercooler,and although I have not yet done charge temp
>measurements,I feel water injection may be beneficial.But where to
>inject? Having twin,sequential turbos suggests I inject water *after*
>the intercooler,maybe just in front of the throttle body? Or should I
>be injecting elsewhere?
>
>Thanks for any help.
>
>
>--
>               Best Regards,
>                        Chris Wilson.
>
>
>