how do i hook up water-meth injection on a 1982 sigma turbo

[cordiafreak1988]

hi i was wondering what i will need to water/meth inject my my australian delivered 1982 gh sigma turbo they are a draw through carby setup, im running a 45mm dcoe side draft weber,
i need to know exactly what i need
aswell as how to set it up.
mix rates would help aswell many thanks luke

[wenzel]

I am not familiar with this particular car, but if it's setup like most turbocharged cars, install the injector in the pipe that runs from the intercooler to the throttle body spraying in the direction of the intake manifold, which goes to the spark plugs and fuel injector area. Make sure the seal is air tight so you don't develop a boost leak. Other than that, you will love the effect of WI with methanol. It's so awesome on my Dodge SRT-4!

[cordiafreak1988]

it is a carby drawthrough setup

[simple]

Mate, you have few option. You can inject water right after carburator and risk compressor blade life, or inject pass compressor closer to engine head.
What is the main reason for you injection water in?
Val
Brisbane

[cordiafreak1988]

it was hooked up on my car before i biught it... it was run through a hobbs switch but i was wondering how exactly to hook it back up,
what are the gains of this

[simple]

Sorry buddy, no easy answer here. Post some pics and piople may comment. At this stage i would recomend to read all this:
http://www.aquamist.co.uk/phpBB2/viewtopic.php?t=457
And this:
http://www.aquamist.co.uk/phpBB2/viewtopic.php?t=267

It will give you idea on how to set it up. All instals are too different to comment without specifics....

Good lack

[cordiafreak1988]

pretty much exactly the same as my engine....as its the same model car

http://i40.photobucket.com/albums/e204/cordiafreak1988/f6_1_b.jpg

[simple]

You can:
Inject water between carby and turbo intake
Inject water right after turbo (pipe above valve cover)
Inject water in to each cylinder separate (you will need 4 nozzles)

From what my limited experience telling me, the best would be to inject some water right after turbo to cool down charge and to inject some water in to each cylinder as well to suppress detonation.

With water quantities, usually suggested to start about 15% water to fuel ratio.
Make sure you tune the engine to water injection as otherwise you will not benefit from it. Treat it like fuel injection, too much or too little is not much good to you. Not to mention that ignition timing and air/fuel ration needs to be adjusted.

Just take your time and read thru the forum. There is a lot of useful info here. You will have to learn basics if you want to do the set up your self.