Water Injection

Submitted: Saturday, Jun 19, 2004 at 13:54
ThreadID: 13917 Views:2651 Replies:5 FollowUps:0
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G'day all i some how come accross this convisation and this bloke said that once a week he'd pour(1 litre in 30 secs aprox) a litre of water down his carby whist reving the petrol engine at 3k and said that it cleans the inside of his motor the first thing that i said was that your full ofbleepe so he showed me a lot of black stuff was comming from the exhaust i didnt think it would be possible because you would be instantly cooling the engine and cause things to crack.He had seen the idea from another vehicle that had the same thing but it was a perminantly fixed water injection set up.He now does it because he stripped the engine that had the water injection and found it very clean he highly recommended that i should be doing it.

Any thoughts on this?

cheers paul
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Reply By: Shaker - Saturday, Jun 19, 2004 at 14:01

Saturday, Jun 19, 2004 at 14:01
I have done it & seen it done! We used to use a garden hose with a very fine spray straight down the carby, Ford Escorts used to have a big problem with pre-ignition when you turned them off, an instant 'decoke' always fixed it.
I assume it wouldn't be recommended practice but it certainly works, if you have ever seen an engine that has blown a head gasket between a water gallery & combustion chamber, you would have seen that the cylinder head & top of the piston are spotless.
AnswerID: 63925

Reply By: hoyks - Saturday, Jun 19, 2004 at 16:20

Saturday, Jun 19, 2004 at 16:20
Old WW2 vintage fighters had it as standard for a few extra horse power when in a fight. There was a dedicated nozzle that sprayed water into the carbie.

I supose it would work if it was a nice fine spray/ heavy mist, a garden hose would be a bit extreme though, if you ask me .
AnswerID: 63947

Reply By: Aston - Saturday, Jun 19, 2004 at 18:36

Saturday, Jun 19, 2004 at 18:36
A fellow by the name of frank Klienig made a kit that had a plate that you inserted between the carby and the manifold with a needle control on it.
The water bottle that was hooked to the system contained a mixture of water and methylated spirits.
That was over 40 years ago as I used to install them.
Whats new?
In your case if your car uses unleaded petrol don't bother!!!!!!!!
Its a waste of time.
If you are worried about any carbon buildup, go and buy some Caltex "Techron" injection cleaner it will after three applications remove most of the carbon buildup from the engine combustion chambers.(SAE Papers)

Cheers Aston
AnswerID: 63970

Reply By: Member - Bear - Sunday, Jun 20, 2004 at 19:53

Sunday, Jun 20, 2004 at 19:53
Frank Jnr still uses this fixed system on his Charity rally vehicle and it does get along like a 747 shot in the arse. Frank still operates as Frank Klienig Motors in Sydney if you want to get any more info - Nice bloke .
AnswerID: 64112

Reply By: IXP10R - Sunday, Jun 20, 2004 at 22:55

Sunday, Jun 20, 2004 at 22:55
I use a modified water injection system on my skyline gtr running high boost pressures increases the risk of detenation which will destroy a motor fast the water injection system cools the intake mix slightly to lower the risk or pre detonation early ww2 fighters used these systems aswell to gain extra horsepower cant tell if my skyline is any quicker with water injection more of an insurance policy. I would assume the internals would be cleaner however too much water and you a likely to bend a conrod or valve stem
AnswerID: 64148

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