Methanol nozzle placement

[tekdeus]

I'm in the middle of installing an AEM water/methanol kit, and it says you can place the nozzle farther away from the throttle and manifold for an "enhanced cooling effect". I will likely install the nozzle into my HKS 3000 pipe right after the blow off valve(to avoid spraying mist out of the BOV), but I was just curious to hear some opinions about placing the nozzle farther away to allow the spray to cool the air better before it enters the engine. Is this effective? Or does water/meth do all of its cooling during the compression stroke?

Also, I plan to run around 20psi on 92-94 octane pump gas. Considering that it is already pretty safe at 15psi, should I opt to run a small to medium sized nozzle? I estimate to hit around 450+hp. The kit comes with 3 nozzles:
small 130ml/min 150-250hp
med 315ml/min 250-400hp
large 550ml/min 400-650hp

 

[Zazzn]

I'm running the M15 nozzle on my TB. Havn't had any issues at all, 24 PSI with pump gas.

It's on the 2jz tb btw.

 

[tissimo]

The nozzle placement has more to due with atomization rather then cooling. The actual effect is mostly inside the combustion chamber, keeping the heat down and adding octane (meth) allowing to run more boost.

 

[suprahero]

I installed mine right after the intercooler and right before the bov, but mine is on the 1.5jz.

As for the nozzle, I was using the 625mm nozzle and I just couldn't get it to tune right so I went with a smaller nozzle. It's a 325mm nozzle and it seems to tune a little easier. The larger nozzle was just adding too much meth and water. I'm running 21psi but I hope to increase it to 24psi since I just installed my larger rear housing. I couldn't seem to get the smaller housing to flow enough air. I'm also going to try and install a four inch exhaust from the downpipe back. Hopefully I won't have any fitment issues.

 

[tissimo]

oops, I just realized in my post I didn't answer the question.

with that being said 3-6" in front of you TB should work fine.

 

[JesseH]

oops, I just realized in my post I didn't answer the question.

with that being said 3-6" in front of you TB should work fine.

Thats what I've always heard from any kit, is 6 to 8 inches from the TB... I mounted mine around 7 inches away.

 

[suprahero]

Mine is actually about sixteen inches from throttle body, but I believe that's what the Snow's Performance kit called for.

 

[hottscennessey]

Mine were placed a good distance from the TB without any ill effects. Probably about 15+" from the TB.

 

[CajunKenny]

Brad, where'd you mount the resevoir/tank? Got a pic?

Or if anyone else has a pic of their install. That'd be cool too!

 

[IJ.]

Had 6x 100cc nozzles in the intake runners, if done this way you have to run a solenoid (I do anyway no matter where the nozzle ends up)

On the Chev I'm going to use a single 625cc in the IC pipe about 10" preTB.

 

[tekdeus]

Brad, where'd you mount the resevoir/tank? Got a pic? Or if anyone else has a pic of their install. That'd be cool too!

I was actually considering using the stock windshield washer tank, and mounting the pump upside down right into the metal plate the tank is mounted to. But I opted for a larger trunk mounted tank. Will post pics soon

 

[suprahero]

Brad, where'd you mount the resevoir/tank? Got a pic?

Or if anyone else has a pic of their install. That'd be cool too!

I mounted my tank to the back of the rear passenger seat.

Had 6x 100cc nozzles in the intake runners, if done this way you have to run a solenoid (I do anyway no matter where the nozzle ends up)

On the Chev I'm going to use a single 625cc in the IC pipe about 10" preTB.

I also installed a solenoid in my engine bay about two feet from the nozzle. It keeps the fluid from being able to fill up the intercooler while you're parked somewhere. It only opens up when the pump is on.

 

[IJ.]

I also run a level switch to the Boost control so when it's out of methanol it's limited to the WG spring.

 

[Turbo Drifter]

I was actually considering using the stock windshield washer tank, and mounting the pump upside down right into the metal plate the tank is mounted to. But I opted for a larger trunk mounted tank. Will post pics soon

That's how I have mine done, should work out well and is nice and easy to install and fill. I'm at the same point as you, just need to install the nozzle and wire it.

p.s. wana race?

 

[tekdeus]

I mounted my tank to the back of the rear passenger seat. I also installed a solenoid in my engine bay about two feet from the nozzle. It keeps the fluid from being able to fill up the intercooler while you're parked somewhere. It only opens up when the pump is on.

I was thinking I would also need a solenoid but luckily the AEM kit comes with an inline check valve that negates the need for it (when before the TB).

I also run a level switch to the Boost control so when it's out of methanol it's limited to the WG spring.

I wouldn't have it any other way either. Don't have to be a fool to want your shit foolproof!

That's how I have mine done, should work out well and is nice and easy to install and fill. I'm at the same point as you, just need to install the nozzle and wire it. p.s. wana race?

Did you use the Snow 2.5 gal res? Send me some pics already.

Heavy car w/stock 7M/ECU vs fully built cammed ViPec 2JZ? You'd better win or your pride will be hurt I'm assuming I will hit fuel cut above 20psi.

 

[tekdeus]

Also, what is the approx. ideal Air/fuel ratio when spraying 50/50 Methanol/water? The article below says that the stoich point of gasoline is 14.7:1, or 14.7 parts oxygen to one part fuel and the stoich point of methanol is 6.4:1. http://www.srtforums.com/forums/f18...-fuel-raios-mixtures-latent-heats-etc-461354/

What would be the correct *volume* mix of 50/50 Methanol to water, if the mix is supposed to be 50/50 by *mass* and Methanol is about 74% the weight of water? Is it 1L of water to 1.26L of Methanol?

 

[suprahero]

I mixed mine up fifty fifty by volume, not weight.

 

[Turbo Drifter]

I was thinking I would also need a solenoid but luckily the AEM kit comes with an inline check valve that negates the need for it (when before the TB).


I wouldn't have it any other way either. Don't have to be a fool to want your shit foolproof!


Did you use the Snow 2.5 gal res? Send me some pics already.

Heavy car w/stock 7M/ECU vs fully built cammed ViPec 2JZ? You'd better win or your pride will be hurt I'm assuming I will hit fuel cut above 20psi.

I am debating even running a check valve in mine its going to be pre TB and the pump and tank are well below the nozzle height. The problem with the check valve is there restriction I think snow did a test and it was surprising.

I will have mine set up with a inline flow meter wired into the ViPEC and running on a 4d map. If flow drops below a expected amount the ViPEC will drop timing and boost. I have not set any of that up yet but should work, looking forward to the challenge....ok I will get Bill to help.

I am using the stock washer tank and have the level sensor included with the AEM kit mounted in there and the pick up coming out the bottom of the tank.

I have no expectations of my car right now, I have learned to never underestimate any set up (as in your set up). It would be cool to see how the cars match up, if you beat me I have no pride to hurt and would just think its cool that your setup and car beat me.

Honestly after having my car not working right or driving for 5 years just driving it alone is fun enough.

Jeremy

p.s. I will try and get some pictures for you tonight.

 

[MRSUPRA]

Good question on what's the proper air/fuel mixture when using a water/methonal mix. I have heard all kinds of answers. Some say high 10's while I have heard others say in the 13's.

I'm pretty sure you should use about a 70/30 mix to get a 50/50 mix by volume of methonal to water.

 

[grimreaper]

if your wideband is reading lambda for gas, it will read richer when the juice is flowing. Lean it out accordingly (more timing would help too). You could run strait methanol and your wideband would still read the scale for gas - stoich= 14.7. (keep in mind this is if you have a gas only wideband that cant be switched to different fuels)