how safe is water injection?

[Akane]

Gary, as far as I know the ST205 came with anti-lag installed but not activated. I have NEVER heard of water injection came factory installed for road cars. I'm not sure if you're trying to convince me they do or they actually do and I'm mis-informed. If they are installed, why don't you activate the said system instead of buying Aquamist?

Sure they don't rob much power, but it still does, and all my previous comments still stand.

Please let me know about this factory WI for ST205, the suspense is killing me.

[GT4 20]

the suspense is killing me.

Not much of an incentive for me then is there
Gary

[sergei]

Ooops I missed sarcasm...
Google for WI on ST205WRC, I've seen on few sites mentioning it...
As far as I know ST205WRC has:
Antilag
Intercooler sprayer
Water Injection (instead of CSI they had water sprayer)
Silly bonnet wing
spacers on rear wing
Steel turbo
and....

[GT4 20]

Silly bonnet wing

Which was placed there to prevent the bonnet from buckling at speeds over 250km/h

spacers on rear wing

Which produced 50kg of downforce at 100km/h.

Gary

[RomanV]

Silly bonnet wing

Which was placed there to prevent the bonnet from buckling at speeds over 250km/h

Which part of the bonnet is this referring to?
The bump where the IC is or something?

[RunningRich]

He is referring to the small wing at the back edge of the bonnet that only export ST205 and JDM ST205WRC got.

And all export ST205 are steel turbine. And the factory WI system is only a nozzle of unknown flow or quality. There is not wiring or pipework.

[sergei]

there is a small wing on the windscreen side of the bonnet, look here
http://www.st205.net/techinfo/wrcornot.htm

[Akane]

Thanks for the info, I learnt something today.

The rest of the comment still stand tho. Sif use WI for road car.

[RomanV]

Aaah okay.

I would have thought that a wing like that would be to help smooth the transition between the bonnet and the windscreen.

Which, I suppose would perhaps reduce pressure at that point, and put less stress on the bonnet.

And BTW.
My old man told me about some american car from the 70s or 80s IIRC, that used to have water injection on a street car.
It worked brilliantly.... except everyone forgot that they had to top up the water all of the time, and the cars all crapped out fairly quickly.
IIRC, it was a non intercooled car, and the water helped cool things.

[Mr Revhead]

escort cosworth had homologation WI as well.

i never used to be a fan of it, then i did some reading.... it has its place

[Vertigo]

so does it behave somewhat like a poor mans nos?

[GT4 20]

so does it behave somewhat like a poor mans nos?

No. It allows you to run more advance. The water is injected as a very fine mist into the intake system (usually post i/c) which reduces intake temps as well as in cylinder temps. This reduces the chances of detonation which is why more advance can be dialed in.
Gary

[Wildcard]

For the record since my pump was fixed [the reason for the death of my first pump is still unknown, it may have been starvation] I've been running it for 6 months now without any problems. The addition of flow sensor and relay and I have a very reliable setup. Not as reliable as when the car was factory, no, but then again I would not class any performance modifications strictly 'reliable'.

With car modification the rule of the game are all about mitigating risk - an errant boost controller or wastegate can easily provide a greater risk in terms of operational failure yet they are still acceptable tools to the likes of Akane while WI is not.

As with anything it depends how its implemented and how savvy/conscientious the user is - I change oil almost as often as I need to top up the Water/Meth tank...

In hindsight I'd like to have had the time/money to do a dyno tune before and after WI install but since I didn't I can't claim any performance benefits. However, I certainly sleep better at night knowing I have additional protection and longevity WI should provide...

[matt dunn]

I should ask Dad about it as He actually worked for TTE in NZ and Australia with the ST185's and the ST205's..

He was on Tyres and Ice on the service points so He will know where and what the water/ice was for.

he's still in Oz till next week though.

Matt

[GT4 20]

A marority of the time people slate something because they lack the full details of its advantages/disadvantages etc. Ignorance is no reason to say that something is a waste of time

Matt
Would defiinately be interesting to hear any feedback/info your father that your father may have. Please keep us updated
Gary

[Akane]

an errant boost controller or wastegate can easily provide a greater risk in terms of operational failure yet they are still acceptable tools to the likes of Akane while WI is not.

Hey bish, 1.3bar = I'm hardcore!

BTW, I'm actually interested in the power levels with and without the faaganol injection on your car.

[strx7]

I'm pretty sure for the 2006 WRC season that banned Water injection, but i'm pretty sure most, if not all the top teams have been running it for a number of years. its the only way they can run some of the boost pressures they do with 100 octane fuel.