Thinking of water injection..any recommendations?

[FC3S Murray]

I have been searching recently for AUX injection just because I am looking for a safety cushion for my FC. I have read countless threads from the Aussie's and how most rotaries down under run water injection.

What i want to know is which company makes the best product.

I plan on using a single nozzle set-up that will spray right before the throttle body.

I have found a couple kits for a good price:

cooling mist: http://www.coolingmist.com/pagedispl...ey=gasvehicles

Devils own: http://www.alcohol-injection.com/uni...stage-1-8.html


I have also considered doing dudeman's mechanical WI set-up.

Any input would be appreciated.

I will be running 14psi on 91 octane with my set-up(S4 13bt street ported, 62-1, 8.5:1 rotors, heavily modded) and this just seems like a smart investment.

[classicauto]

Best as I'm sure you know is relative to your goals.

Sounds like you're looking fora little saftey net, yes? Not a full blown 1500+cc of meth and 30psi setup?

I would personally recommend either snowperformance or devil'sown. They're both simple, inexpensive and on most accounts pretty reliable. My snow system has been running for over two years with a variety of fluids and nozzles. Im running a progressive kit with a single nozzle. BUilt my own tank though.

I know coolingmist is also good but I've got no personal experience with their system(s). Their HSV system seems nice though, definetly next level.

[85rx-7gsl-se]

I have been running a snow performance stage 1 for about two years and it has worked great.

[FC3S Murray]

Originally Posted by 85rx-7gsl-se

I have been running a snow performance stage 1 for about two years and it has worked great.

What are you running for meth/water mix?

I am curious on how much of a mixture I am going to need to run since this is really geared for reliabilty and not max power output.

[85rx-7gsl-se]

I run two bottles of Heat Fuel Line Deicer mixed with a gallon of washer fluid usually. But recently I have went to straight meth since my dad had some left he wanted cleared out.

[FC3S Murray]

I might do straight water since my garage is heated....just hope my heater never goes tits up. I will never have the FC out in the winter or cold fall mornings.

How much of a mixture would one need to prevent freezing but not required to do a major up-tune.

[classicauto]

from my experience straight washer fluid doesn't alter the wideband readings. Assuming you're not spraying LOADS in there. I used up to 625cc with no real, quantifiable, change. Straight meth on 625cc would richen up consistently .2-.3AFR.

Straight water is what I run mostly, wouldn't think of using anything else if its saftey you're after and can keep freezing in check.

[RICE RACING]

Hello,

You may want to read this thread http://www.aquamist.co.uk/phpBB2/vie...=1706&start=30

I have run and set up allot of rotaries at varying levels over the years, you can see video and read more on the topic as it applies to wankels http://www.riceracing.com.au/water-injection.htm

Quite a few have followed and had similar results after following my guidance on set up and how to run it, you can achieve the same with virtually any decent "kit" does not need to be a certain vendors.

If you want a recommendation then you cant go past Aquamist for quality and freedom of placement of injector and fluid container.

Hope this is of some help to you?.

Peter

Originally Posted by FC3S Murray

I have been searching recently for AUX injection just because I am looking for a safety cushion for my FC. I have read countless threads from the Aussie's and how most rotaries down under run water injection.

What i want to know is which company makes the best product.

I plan on using a single nozzle set-up that will spray right before the throttle body.

I have found a couple kits for a good price:

cooling mist: http://www.coolingmist.com/pagedispl...ey=gasvehicles

Devils own: http://www.alcohol-injection.com/uni...stage-1-8.html


I have also considered doing dudeman's mechanical WI set-up.

Any input would be appreciated.

I will be running 14psi on 91 octane with my set-up(S4 13bt street ported, 62-1, 8.5:1 rotors, heavily modded) and this just seems like a smart investment.

[RICE RACING]

Originally Posted by FC3S Murray

I might do straight water since my garage is heated....just hope my heater never goes tits up. I will never have the FC out in the winter or cold fall mornings.

How much of a mixture would one need to prevent freezing but not required to do a major up-tune.

To save you reading, from my findings 50/50 water and methanol will meet every requirement of yours.

No freezing
No retune
Best power
Highest cooling to economy of fluid use *important aspect*


Flow rates you need are posted in the other links I gave you. Tested to 17.5psi with T04Z and 13B-REW engine (higher compression than you).

[FC3S Murray]

Thanks Peter! BTW impressive numbers on that Rice Racing webpage.

I am thinking of going the snow performance route. I am still in the air if I want to go 50/50 oir straight H2O. If I do run 50/50 I will tune it to about 11/10.9:1 AFR since my last set-up was tuned at 11:1 AFR at 14.5 psi and about 10* IGN Leading and 11* Split on just 91 octane.

[RICE RACING]

With your compression ratio you will have no problems at all, you wont require much water if any at that boost level though it will be excellent insurance for you which is what its all about.

I run all my cars water injected, I hate turbocharged rotaries without it honestly. I have one customer in New Zealand who has been running my WI kit on his C16 8 sec drag car and he will not take it off due to his motor now running 3 times longer than it has at any time before and it sill has perfect compression.

It transforms the reliability of these engines. As another example in my apex seal collection I have a set out of one car that I maintained for years and in that time it covered 55,000km at boost levels of 25psi to 21psi all the time and making honest 530bhp *engine power* and the apex seal height with right level of premix and WI was better than a stock motor that had covered only 20,000km with no chamfering or nay signs of abnormal wear.

Should be compulsory on all Rotaries

[FC3S Murray]

I agree. I just want to MAKE SURE that if my WI system ever fails that my motor won't pop due to it being progressivly tuned for the 50/50 mix...hence why I am thinking leaving it un-tuned.

[FC3S Murray]

Originally Posted by classicauto

Best as I'm sure you know is relative to your goals.

Sounds like you're looking fora little saftey net, yes? Not a full blown 1500+cc of meth and 30psi setup?

I would personally recommend either snowperformance or devil'sown. They're both simple, inexpensive and on most accounts pretty reliable. My snow system has been running for over two years with a variety of fluids and nozzles. Im running a progressive kit with a single nozzle. BUilt my own tank though.

I know coolingmist is also good but I've got no personal experience with their system(s). Their HSV system seems nice though, definetly next level.

Hey Classic, how much PSI is that Snow pump rated at?

[classicauto]

I believe the smaller, or standard, pump is 130-150psi which is what I'm using at the moment.

They offer a 220 or 240psi pump for multi nozzle setups. That will be the only upgrade I'd do. IMO the higher the pressure the better in these systems with a mechanical pump. Plus taking into account the different losses AND manifold pressure you really don't end up with much pressure at the head of the nozzle.

[FC3S Murray]

I emailed Snow and they said the newest stage 1 kit comes with a 220 psi output pump.

Either Devils own or Snow...need to decide. hmmm.

Devils own stage 1 has a 250psi pump but no tank for 240.00. Additional 35.00 for a 4qt tank.
Snow has the stage one for 304.00 with a 4 quart tank.

How long does a 4 qt tank last in relation to spirited driving?