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Thread: Water Injection Setup for Golf R

  1. #1
    Senior Member Tarmac's Avatar
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    Water Injection Setup for Golf R

    Water Injection Setup for Golf R

    Hi guys & girls,

    Just thought i would share my water injection setup with you. Although you can also ruin a methanol mix i am only running water. Photos first, information after.


















    Ok so my setup consists of 2 nozzles. 1 smaller nozzle is placed just after the intercooler. I drilled and taped a hole in the intercooler outlet pipe and fitted the nozzle so it was flush with the inner diameter. This nozzle dramatically cools down the air going up the uptake pipe, most importantly it feeds the intake air temp sensor the information we want which is that the air is now super cool. This then tells the ECU "hey man its cool to run all that timing/boost we tuned into it".

    The 2nd nozzle is placed in my specially made throttle body spacer. You can purchase them here, i have plenty of stock. The best bit is i have made 2 different types. 1 for snow performance nozzles and 1 for devilsown nozzles (yes they are different) Anyway now my plug is over back to the story. The 2nd nozzle is larger than the first and this really feeds a lot of water/meth spray into the intake manifold which is fed down through the head into the cylinders. Note that having a main nozzle before the throttle body is not a good idea (some after market uptake pipes have a position for them) and it can damage the throttle body butterfly assembly and cause it to fail. Also note that i am using the stock uptake pipe.

    Now i have nice cool atomized spray (super fine mist) going into my intake manifold. This dramatically reduces heat inside the cylinders. (up to -300degrees, "apparently") Protects pistons, gives more consistent power, more power by enabling you to run a lot more timing and or boost. (more power) on a stage 2 Golf R you can obtain up to 28awkw more just be running a similar setup.

    The tank. 8.5 litre race tank. Baffled, 250psi pump attached to it and i have installed a float level sensor so i am warned on the controller when the level is getting low. How is it held in? With a custom bracket i made to hold the tank in place, this sits on top but is floating on the floor of the boot. I can still get my spare wheel out etc. Winning. How noisy is it inside the cabin? WELL, i cant hear it at all. It makes no noise.

    Controller: Progressive boost controller. I have mine set to start coming on around 8psi which it starts feeding at about 20% duty cycle. Then by 20psi it is at 95-100% duty cycle and stays on 100% until the throttle has been lifted off or boost goes below 8psi. Power light, pump on light and level sensor light so its a fairly safe setup.

    All in all i think this is a very neat and tidy setup. It serves its purpose perfectly and is a good value for money upgrade for anyone with a low to heavily modified setup. Especially in our hot climate.

    Cheers

    Ben
    Last edited by Tarmac; 03-04-2013 at 07:24 PM.

  2. #2
    Super Moderator Jig's Avatar
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    So clean Ben. I love it.

  3. #3
    Senior Member _gti's Avatar
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    Great set up, how are the gains?

  4. #4
    Senior Member Lazarus7's Avatar
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    Nice Ben, mines a bit different using the washer bottle and a MAF based controller but after running it on my 104 map this weekend for the first time I can certainly vouch for the significant power increase.

    I notice that you say not to mount it pre throttle body as it can damage it? I've got my nozzle mounted in the pre fabbed spots on the BSH throttle body pipe. Can you please elaborate on what damage it can cause?

    Thanks
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  5. #5
    Senior Member Tarmac's Avatar
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    Quote Originally Posted by Jig View Post
    So clean Ben. I love it.
    Thanks Jig

    Quote Originally Posted by _gti View Post
    Great set up, how are the gains?
    Tuning will commence this week. I will not push it to far at the moment as im at 270awkw on stock rods.

    Quote Originally Posted by Lazarus7 View Post
    Nice Ben, mines a bit different using the washer bottle and a MAF based controller but after running it on my 104 map this weekend for the first time I can certainly vouch for the significant power increase.

    I notice that you say not to mount it pre throttle body as it can damage it? I've got my nozzle mounted in the pre fabbed spots on the BSH throttle body pipe. Can you please elaborate on what damage it can caus

    Thanks

    Good to hear you got good gains mate. Any reason why you went MAF controlled? I guess it really depends on how much you are spraying before the throttle body and how close. What size nozzles etc. I believe it can cause the throttle body butterfly axle to corrode and possible seize or become sticky, also electrically i think from memory.

    Your car wont explode though, so thats a plus.

  6. #6
    Senior Member Scarlet's Avatar
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    Very impressive man! Love this system! So simple when you think of it. Can you now beat a WRX with this installed?

  7. #7
    Senior Member Tarmac's Avatar
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    Dont be silly scarlet, nothing can beat a wrx.


  8. #8
    Senior Member frazza's Avatar
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    It's an awesome setup and so simple to install, couple of hours, a stabbing and all is done
    ║ "The mind is willing but the body is weak - Frazza 2013" ║ Follow me on Instagram

  9. #9
    Senior Member 73landau's Avatar
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    It always works better when blood is spilt
    Quote Originally Posted by frazza View Post
    It's an awesome setup and so simple to install, couple of hours, a stabbing and all is done
    08 MY09 R32, DBP, DSG, GIAC, R8V10 reps, KW V3, RNS510/VIM/BT/MDI/multiregion, Haldex and switch, s2t paddles,HPA dogbone rubber,Mk7 climatrotronics, FIS+, Adams/RDA discs & Hawk pads, Garage opener button, GruppeM, .front fogs, Milltek. CF Chin spoiler.Strut support. UB+XB, superpro LCAs, Alloy riser knuckles, LEDs.....

  10. #10
    Senior Member frazza's Avatar
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    Quote Originally Posted by 73landau View Post
    It always works better when blood is spilt
    Well it should work "BLOODY" awesome then,


    Quote Originally Posted by grandturismo View Post
    Nice job Ben, it looks the biz. I like the idea of a bigger tank in the boot. Any extra noise in the cabin?
    I was sitting in the back with the seat down and i could not hear the pump running, i had to put my hand on the pump to tell that it was actually running, So very quiet
    ║ "The mind is willing but the body is weak - Frazza 2013" ║ Follow me on Instagram

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