Hmmm that makes all types of sense Diymark!!!

I also want to inject post turbo but probably straight into plenum as there are tapped holes ready and waiting for it.
That and the distance from compressor outlet to plenum is so short there's not really anywhere to put it there.

So I'd love some more info on how you are gonna set the injection seup up and what parts u are using.

Cheers, Jon

If I get a moment I'll try and draw up a diagram + give pointers for parts on ebay.

many thanks!!

Geez, this was the most work I done all week! (Broken leg and staying at home - yes its the throttle foot!)

Heres a "plumbing" diagram, layout for the electrics box and even a circuit.

Suitable pump - http://cgi.ebay.com.au/12-Volt-High-P ... ories&hash=item335eb16681

Suitable Switches (need to be calibrated) - http://cgi.ebay.com.au/HOBBS-PRESSURE ... ories&hash=item4cf04fff4f

Needle valve - http://cgi.ebay.com.au/CO2-NEEDLE-VAL ... plies&hash=item43a02681f8

Solenoid - http://cgi.ebay.com.au/12V-DC-1-4-Sol ... plies&hash=item1c13ec1ec0

RRFPR - http://cgi.ebay.com.au/NEW-RISING-RAT ... ories&hash=item2a080948b9

Nozzle - http://cgi.ebay.com.au/Misting-Fog-No ... pment&hash=item4a95dd07ed

Float Switch - http://cgi.ebay.com.au/Horizontal-wat ... pment&hash=item45f34e2f8a

You can use a surge tank for the water tank.

Electronics are pretty straight forward (Jaycar, RS, Farnell, etc).

The boost cut is crude and allows for fully sick back fires!
You can add a 1000uF capacitor across the boost cut LED to stop flashes and to get a better indication.

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So...

Whoz gonna build one for me and tell me how it works :D

Lolz, I will.... eventually!!!

Looks simple enough though I can make that for sure.

Bummer about the leg mate but thanks a heap for that.

I appreciate ur time!!!

Anyone know what the benefit would be of having seperate water and methanol injection circuits on a suck through setup?

Baz @ Datsport reccomended this in a thread I started over on OZDAT and has yet to explain why.

Only thing to gain would be control over how much water to meth you have - but you can do that simply by adding whatever ratios of H2O and meth. you want in the tank in the first place.

I guess if you really wanted you could use a microprocessor and injet water depending on intake air temps then separately inject meth. according to a reading from a knock sensor. Only benefit from with is possibly less meth/water consumption as in my system I designed you just inject both at the same time and more than needed to be on the safe side.

ahh I see... sort of.

So they perform separate functions.

Water to cool charge via evaporation and methanol to suppress detonation via octane boost.

Cool, thanks for that I'm slowly learning about these funky turbo things.

Umm looks like Dr Who Science project. I think Ill stick with a switch on the pedal
and a higher pressure pump and good nozzle just after the Carb.
I dont see an issue with rusting as the heat is too great to matter once you
turn it off after a 30 second idle and water not being squirted during idle.

thedevilshands, I have seen what water/meth does to an SR20 with a t66 turbo at idle, at 2500rpm, at 5000rpm and at 8000rpm and i can say...

IT's SCARY, the instant torch, power increase is unbeleaveble, a SR20 turbo is big i know, but the differance....

IM hooked, like a puppy on dagga, my A14 turbo will be getting this conversion in the future.
ps i have never heared of a sentra wheelspin in 3de,
I have now had the privalidge to drive one wheel spinning throu 3de and into 4
cheers