Toyota Supra twin turbo and water injection.

[Chris Wilson]

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.