Alistair,

One of the most effective applications of water injection is for turbo-charged engines. Pre-turbo water injection is uniquely helpful in reducing the thermal load on intercoolers and extending the effective boost pressure range of smaller turbochargers. I put a significant amount of material in threads on this subject on tdiclub.com. This also described the modifications I developed for my Vanagon TDi installation.

Frank Grunthaner

 

 

 

-----Original Message-----
From: Alistair Bell <albell@SHAW.CA>
To: vanagon@GERRY.VANAGON.COM
Sent: Sun, Jan 30, 2011 4:31 pm
Subject: water injection in vanagons, was Re: [VANAGON] Hydrogen help for the Vanagons

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