Where to Mount Water Meth Nozzle on OE Throttle Body Hose?

[HUFset]

I have a FMIC that uses the OE throttle body hose and just got a methanol kit. I am going to mount my meth nozzle pre TB as the directions and my tuner have requested for now. I am looking for IC piping to weld a bung onto later. Please don't respond with, "buy a TB spacer" or "tap your manifold". I want to run one nozzle for now and will consider 2 later(TB spacer and post IC).

Anyone have any pictures of a OE TB hose with a meth nozzle tap?

I was going to use washers to mount the nozzle like they have suggested in this excellent article:
http://www.alcoholinjectionsystems.c...articles_id=75

I also have seen this picture in another AZ thread where it looks like someone has used the OE hose and it leaked:
http://www.audizine.com/forum/showth...Meth-injection


I have read that the nozzle should only be mounted between 12 and 3 o'clock. I want to be as far away as possible from the TB(5-6"is suggested by AEM). The OE TB hose has many twists and turns. I don't know much about fluid dynamics, thus I am worried about meth puddling up in my TB before it atomizes.

Any suggestions on where to tap?

Is the location in the picture above fine? It seems like he should have moved his location 1/2" to the left at 12 o'clock so he wasn't spraying directly onto the TB. The white audi marks on the TB hose are 12 o'clock on the TB itself. Can you move further down/away from TB on that hose at 12 o'clock and not cause any puddling of meth before the turn?

Here are the yellow numbered locations I am considering to tap the TB hose orthogonally:

[HUFset]

Anyone?

[Jonnyth3boy]

You can always move farther down, there's no where for the meth to go but into the throttle body, concentrations might change but it'd be so miniscule because it's a closed system. I wouldn't spray directly onto the TB plate, although I also wouldn't spray in front of it anyway. The drive by wire electrical in the TB is very sensitive so I'd be wary of putting anything near it besides air. I know you said you weren't going to tap it yet, but honestly I'd consider getting it past the TB somehow with a spacer (yes I know you said you didn't want to). But that's just me.

Edit: the force of air being drawn in, should never let the meth puddle.

[HUFset]

You can always move farther down, there's no where for the meth to go but into the throttle body, concentrations might change but it'd be so miniscule because it's a closed system. I wouldn't spray directly onto the TB plate, although I also wouldn't spray in front of it anyway. The drive by wire electrical in the TB is very sensitive so I'd be wary of putting anything near it besides air. I know you said you weren't going to tap it yet, but honestly I'd consider getting it past the TB somehow with a spacer (yes I know you said you didn't want to). But that's just me.

Edit: the force of air being drawn in, should never let the meth puddle.

Thanks for following he reply, I was leaning towards spot 3. For best atomization.

Troy at Apikol told me the best spot is before TB. Says the TB airpath doesn't have any electronics and if it gets past the TB bearing then the TB is bad anyway.

AEM instructions state specifically 5-6" before TB.

I don't think tapping before TB is an issue and I'd like to lower my IATs and increase octane instead of mostly increasing octane.

He also said not to tap rubber hoses and I'm worried about the nozzle backing off and getting eaten by the engine.

Maybe I should just buy an extra nozzle, buy a spacer and call it a day with 2 nozzle setup.

[430hps4]

I think the amount of boost and which turbo you plan on using, will matter.

I had a dual nozzle setup on my 2.0T. I had a GT28RS setup, with a TB spacer for one nozzle, and another nozzle placed in one of my IC couplers. The one in the couple always had a small leak. I tried a couple different fittings, and different sealants. But the boost pressure always found a way out.

Just my two cents...

[HUFset]

I think the amount of boost and which turbo you plan on using, will matter.

I had a dual nozzle setup on my 2.0T. I had a GT28RS setup, with a TB spacer for one nozzle, and another nozzle placed in one of my IC couplers. The one in the couple always had a small leak. I tried a couple different fittings, and different sealants. But the boost pressure always found a way out.

Just my two cents...

I have a hybrid F21L that runs 24psi max on a Motoza file. What psi were you running? Did your nozzle ever come loose? That's my main concern. I am going to try a few different washers per the above AI link. Maybe eventually a two nozzle setup with bung and throttle spacer or a hard pipe with bung if I can figure out to fab one for my FMIC. For now, I am trying to get recommendations on nozzle placement, but very much appreciate the input about leaky hose taps.

[430hps4]

I ran around 22lbs, if I remember right. We only have 91oct here, so the meth was more for temp control, given the AZ heat.

I had one of these in the coupler...

http://www.usrallyteam.com/index.php...roducts_id=304


It wasn't the nozzle that was loose. Is was just the lack of a good seal between the nozzle holder and the silicone intercooler coupler. I couldn't squeeze it tight enough, or use enough sealant, to keep it from leaking. I would always see "moisture" around that area, so it lead me to believe it was always leaking when under high boost situations.

If I had to do it again, I would have taken one of the intercooler pipes off, taken it to a shop, had them drill/weld in a bung, and put it all back together. In my mind, its the only way to ensure a tight fit.