Water/Methanol Injection...

[Tony Davila]

Originally Posted by VetteVet

Tony,

I'm not sure of how the control systems on these systems work, but you're not getting a valid vacuum signal by tying in upstream of the throttle plates at the IAT sensor location.

As load increases, plenum pressure rises, however at the air horn pressure is at it's highest at low load and decreases as load increases.

Don't know if this means anything or not. Just throwing it out there.

Jep

Hi Vette Vet, I have attached the diagram below. What you are talking about is not my vacuum source but where I am spraying my mist.

This is the diagram that came with the Snow Performance Water/Meth Inj system.

A close up of where I installed the injector.

Inside view of the nozzle in the Air Horn.

From the Vacuum activation switch I used manifold vacuum. I attached there because it was available due to no secondaries installed.

Hope this helps.

[rkreigh]

a couple of recommendations for you

even though it's super convenient to use that port on the throttle body I'd move it to the bottom and center it so the fan sprays straight down the throat and gives a better mixture/distribution. I'd use a silicone samco duct and just cut right in the center more towards the air filter to give the alchy the best suspension and more time to make the turns into the ports.

your way will probably work just fine, but I'm a purist and want to get the mixture as even as possible on all 8 cyl.

it might be overkill but I always worry about puddling injecting at a 90 deg angle to the airflow

also, spray pure meth. it will give you all the cooling you need and burn it all for more power. the water/meth mix will work well too but I think you'll be happier on pure alchy

good luck, great project.

[Tony Davila]

Originally Posted by rkreigh

also, spray pure meth. it will give you all the cooling you need and burn it all for more power. the water/meth mix will work well too but I think you'll be happier on pure alchy

I'm doing research on the pure Meth solution. I might slowly add more alchy to my mix to a possible 75% Meth to 25% water and see how she performs. This is new to me so I need to be careful to not assume anything.

You are right the IAT port was convenient place to install the injector. If you could see how big the spray plum is when on and know that it is only activated at WOT, I think there will be no pooling problem because the Air Horn is tilted down. I will be careful though and thanks for your suggestions.

[VetteVet]

Originally Posted by Tony Davila

Hi Vette Vet, I have attached the diagram below. What you are talking about is not my vacuum source but where I am spraying my mist.

This is the diagram that came with the Snow Performance Water/Meth Inj system.

A close up of where I installed the injector.

Inside view of the nozzle in the Air Horn.

From the Vacuum activation switch I used manifold vacuum. I attached there because it was available due to no secondaries installed.

Hope this helps.

Sorry, Tony. I misunderstood your description of the system. Makes more sense now.

Jep

[rkreigh]

Originally Posted by Tony Davila

I'm doing research on the pure Meth solution. I might slowly add more alchy to my mix to a possible 75% Meth to 25% water and see how she performs. This is new to me so I need to be careful to not assume anything.

You are right the IAT port was convenient place to install the injector. If you could see how big the spray plum is when on and know that it is only activated at WOT, I think there will be no pooling problem because the Air Horn is tilted down. I will be careful though and thanks for your suggestions.

tony, now that I look closer at the meth jet my idea wouldn't work anyway

great system, thanks for the write up. one weather gets better love to see back to back runs at the track to see how much MPH you pick up

back to back dyno runs would do it too. I'm betting there is about 20-30 hp available on pure meth

on the turbo cars, it's worth a ton and can almost eliminate the need for intercoolers (nice "liquid" intercooler)

on the turbo z06 I have I go from 600 rwhp at 13 psi to 800 rwhp at 17 psi on meth with pump gas probably a bit more boost would produce more but I run out of nerve at 800

[FU]

The alc./water inj. should work very nice when tuned into the new Mega-Raptor engine management system.

A good progressive shot of NO2 would be nice with the Mega-Raptor system too

[Tony Davila]

Originally Posted by FU

The alc./water inj. should work very nice when tuned into the new Mega-Raptor engine management system.

A good progressive shot of NO2 would be nice with the Mega-Raptor system too

Man I am excited about your endeavors.............

I have scheduled a dyno run for next Saturday the 2nd of Feb.

Test #1. Baseline run without Water\Meth
Test #2. Then run a 50\50 mix Water and Meth
Test #3. Then a 75%Meth\ 25% water

I'll post my results next Sunday, good or bad, then you decide for yourself whether it is worth it..