has anyone run the Meth-kit on a N/A motor? I get what it does for FI, just wondering if there would be any gains on a Mild N/A build. Snow Performance makes a pretty nice kit for N/A. Just trying to do a lil research before jumping into anything.

 

Doubtful. If you upped the compression on your motor to levels that would dictate a race fuel, then you would obviously see that benefit. Adding some timing to your basically stock N/A motor may yield you some gains, likely not enough to warrant a injection system to combat the detonation tendencies associated with extreme timing or boost/compression though. The whole point with water/meth injection is to inject a race fuel octane which will prevent detonation so you can run more boost/timing, wile retaining the ability to run on pump fuel as a daily driver. In most cases injecting on a standard N/A motor including ours will yield no gains and could even hurt performance in some cases.

If your racing your car, I could see a slight benefit to the cooling attributes of the injection in an N/A motor, where higher AIT heat could be a factor. But not as a means of increasing power, just better maintaining the power you have from heat soak.

 

Wow thanks for all that, I really appreciate you takin the time to respond
I was thinkin that was probly gona be the answer. I'll just stick to the
old school cooling methods.

Thanks again

 

I posted this on another thread and thought it would be more appropriate on this thread.

Its basically about pre-turbo water injection by using ALL MECHANICAL METHODS. No pump, so no failers.


"I don't know if I agree with your theory. There are many people in AUSI land that DUMP IN water. I mean 1200-1500 cc of water into there motors and make REDICULOUS power.

Here have a good read.

http://www.rx7club.c...water+injection

Its all about getting the atomization.

Here is some more reading about pre-turbo injection as well.

http://www.rx7club.c...water+injection

RX7 boys have been doing this for years. I have installed it on one car, an evo, and it really does push the compressor map. WILD stuff. Kills detonation as well. I LOVE WATER. DID I MENTION ITS FREE?
"

 

 

Who are you talking to btw? You have copy/pasted this same post twice now that I have seen. Your posting info on what some guys have done with a rotary motor, which is entirely in its own category, its difficult to translate that to a piston driven motor. Every application is different. There are fundamentals to follow, but beyond that the nature of this technology is custom to the motor size and type, desired goals etc. All you can reasonably do is learn from a case by case scenario, look for the commonalities between set ups/application for comparisons and build/learn on this.

 

As stated. It made no sense to post this on that guys thread and that was bad form of me, so I moved the post over here to a thread where it made sense.

Yes, in the US it is used on rotary's. That community has embraced it. In the rest of the world, its not really used on rotaries, so help me understand what your rant about piston vs rotary motors was again. :-)

 

As stated. It made no sense to post this on that guys thread and that was bad form of me, so I moved the post over here to a thread where it made sense.

Yes, in the US it is used on rotary's. That community has embraced it. In the rest of the world, its not really used on rotaries, so help me understand what your rant about piston vs rotary motors was again. :-)
[/quote]

As someone that uses water/meth for some time and is familiar with its strengths and weaknesses. Simply saying that a guy with a rotary motor is having great success injecting 1600cc of water into his motor therefore it can be done on any type of engine/set up... is not something I agree with. For example, A triangle piston that spins has a different sealing capability and use of materials (ie apex seal) completely different design then a piston engine, which I believe to be much more sensitive to washing of the cylinders, especially when injecting a 100% non combustible liquid into the combustion chamber. I want to see how much traction you gain if you start preaching to people in this thread that the OP would have been successful if he simply injected 4x400cc injectors into his i-4 with 100% water. Or even a single 1600cc injector Pre TB. My point is, if your going to disagree with my position that’s fine, but back it up with something that is at least relatable. As I said, there are numerous variables that will dictate success or failure with this type of injection and there is no one right way for all. Just the right way for that particular application. One thing I agree on is that atomization is extremely important, no matter what fluid used or motor and set up.

 

As stated. It made no sense to post this on that guys thread and that was bad form of me, so I moved the post over here to a thread where it made sense.

Yes, in the US it is used on rotary's. That community has embraced it. In the rest of the world, its not really used on rotaries, so help me understand what your rant about piston vs rotary motors was again. :-)
[/quote]

As someone that uses water/meth for some time and is familiar with its strengths and weaknesses. Simply saying that a guy with a rotary motor is having great success injecting 1600cc of water into his motor therefore it can be done on any type of engine/set up... is not something I agree with. For example, A triangle piston that spins has a different sealing capability and use of materials (ie apex seal) completely different design then a piston engine, which I believe to be much more sensitive to washing of the cylinders, especially when injecting a 100% non combustible liquid into the combustion chamber. I want to see how much traction you gain if you start preaching to people in this thread that the OP would have been successful if he simply injected 4x400cc injectors into his i-4 with 100% water. Or even a single 1600cc injector Pre TB. My point is, if your going to disagree with my position that’s fine, but back it up with something that is at least relatable. As I said, there are numerous variables that will dictate success or failure with this type of injection and there is no one right way for all. Just the right way for that particular application. One thing I agree on is that atomization is extremely important, no matter what fluid used or motor and set up.
[/quote]

No one is disagreeing with anything other than I don't believe your reading my posts. I told you this was not about rotaries above, and now here we are again with you preaching about the difference between rotaries again. WOW is all I can say. I would go back and quote my exact messages, but I don't think it would matter. Its like a reading disconnect we got going on or something??!

Do I need to write in caps. Fine then: THIS IS MAINLY USED IN AUSTRALIA ON PISTON MOTORS, but only the rx7 forum in the USA seems to have started embracing it here in the US. I installed this setup ON A EVO and had GREAT success with it.

Wait, are you going to reply to my thread now about how an evo has a rotary motor? :-)

 

I know Joeyballs is and making 550whp with 70/30 mix