I have to admit to cutting and pasting from wikipedia :-)

I can't write that succinctly.

I think I have read of some folk with TD vanagons using some water
injection, and perhaps I have read about turbo waterboxers using same.

alistair

On 30-Jan-11, at 3:39 PM, Jim Arnott wrote:

>
> On Jan 30, 2011, at 11:23 AM, Alistair Bell wrote:
>
>> water injection is a known and
>> useful technique. it even can be applied to vanagons.
>
> Alistair,  thank you for the write up.  My real world experience was
> on 1.) Datsun 1200 that through a slight miscalculation ended up
> with 12:1 compression following a bit of hot-rodding. and 2.)
> Triumph TR4 w/ a Judson supercharger on a 9:1 compression motor.
> Spearco's Injectronic allowed both to run on $1.25 Chevron Custom
> Supreme rather than having to visit the local race shop twice a week
> for +104 racing fuel at about $4.00/gal. (1974 dollars....)
>
> Water injection works just fine. Make horsepower? No. Allow you to
> run compression ratios that ought not work? Yup. Higher compression
> ratio make more horsepower? Yup.  Semantics.
>
> Jim