Delboy2

I think Water Injection is definitely worthwhile as it increases the safety margin (reduces DET). Costs about £360-£380 for the 1s Aquamist setup and I'm not that worried by 330bhp

[Edited by Delboy2 - 8/1/2003 9:47:10 PM]

thelegend

hi

in a few weeks i will be purchasing a sti4 type r.

i currently own an mr2 turbo. On this i use water injection to help prevent detonation. This works by squirting a 50/50 mix of water/methanol into the intake pipe. The water cools the intyake charge and the cylinder temps and hte methanol increases the octane rating of the fuel. i found it did a great job on my mr2.

The question i want to know is wether i should bother keeping the kit to fit to my impreza when i get one?

has anybody here got a wi kit fitted?

cheers

lee

jonny gav

iTrader: (1)

the answer is yes, keep it for the scoob!

it will do an equally good job on your scoob as it did on your MR2 turbo.

oh, and welcome to scoobynet

thelegend

thank you for the reply.

does anybody know the material the sti intake mainfold is made from as methanol is very corrosive and my damage the manifold if not made from a suitable material.

cheers

lee

jonny gav

iTrader: (1)

ally so it will be ok

Delboy2

Definitely keep it M8. I had mine on an MR2Turbo too but removed it when sold. Now got mine on the scoob to great effect

jay_mcrae

i want some of that!! is it expensive? does it do any damage over a prolongd time? ive heard it does wonders for the supra in my area!(by the way if the supra man is reading this watch out for the 330 bhp wrx thats just moved in down the road from u, its gona whip ur *** haha!!!)sorry!

thelegend

i have a homemade kit developed by one of the mr2 owners who is an electronic engineer, so no its not just a washer jet pump

Its a twin pump system that the flow rate can be mapped using a unichip.

because it was home made this made it extremely cheap compared to the competition.

Similar kits are going to be distrubuted through owen developments.

http://www.owendevelopments.co.uk

i must admit it did cure detonation and let me run higher boost and more ignition advance.

I was running 0.2 bar extra boost and another 2 degrees of timing.

I was veryu pleased with the results and i hope to see the same on my impreza

cheers

lee

teknopete

Real water injection systems use extremely high pressure pumps to ensure complete atomization of the water into the airflow, for example the Aquamist system.
These have been used in various cars and a few of the higher powered scoobs to assist in retarding of the flame front
in a similat mannor to what octane booster does, with good results.
The kits are readily available from various outlets and vary from a basic water atomizing system to a fully mappable system with level monitoring. Obviously the price reflects the complexity of the system but a basic setup can be had for a few hundred £.

If u want / need more info gimme a shout

Pete

darkblueturbo

is water injection the same as intercooler water spray??

TBMeech

Dbt,

No mate, I/C water spray, literally sprays a small amount of water direct onto the intercooler.

Water Injection - Sprays a very fine mist of water (depending where you mount the jets) usually right into the mix, allowing the 'burn' to be cooler, thus reducing det and in most cases upping power

darkblueturbo

Thanks...!!

from that description water injection looks better for my plan of 330ponies on a UK00. And there was me looking at I/C waterspray kits. To reduce the intake charge and allow the IC to boost higher.

David_Wallis

TBMeech.. water injection doesnt directly gain you any power.. it will actually loose you power, it does allow more timing and more boost which does = more power.

David

TBMeech

Good point David, I was meant to add that but was just off to the dentist and cut me reply short

5 Type R

The Legend.

I used to have a Rev 3 MR2 Turbo that is now owned by Dino at Owen Devs and therefore you are probably aware of the car. It also runs the "PP" Water Injection Kit.

My Version 5 Type R, was the first that "PP" put his WI kit onto a Scooby and I am very happy with what it provides.
More than happy to show you fitting locations etc.

As with the MR2 , I am running a Unichip mapped by Mark at Owens and have a good 310(249@wheels) & 300lbft from a peak of 1.45 bar and holding 1.1-1.2