please share your views on meth/water injection.
10-12-05, 04:52 PM
#1
Rotary Enthusiast
Thread Starter
Join Date: Mar 2004
Location: springfield MO
Posts: 805
Likes: 0
Received 0 Likes
on
0 Posts
please share your views on meth/water injection.
I have heard some mixed reviews on meth, some people swear by it others say its ok for a short time and then some say its not worth it. So im just wanting to hear some arguments on why or why not to use meth.
10-12-05, 05:23 PM
#2
3rd motors a charm I hope
Join Date: Apr 2003
Location: Central New York
Posts: 2,054
Likes: 0
Received 0 Likes
on
0 Posts
awesome stuff, i cant say enough about it
I run 100 percent water usually, but once in a while i add some methanol. I dont notice any difference except i can smell the meth for some reason, lol. I have blown 2 motors in the last year and a half without the water injection, and this one seems to be all good running even more boost with the water injection.
I run 100 percent water usually, but once in a while i add some methanol. I dont notice any difference except i can smell the meth for some reason, lol. I have blown 2 motors in the last year and a half without the water injection, and this one seems to be all good running even more boost with the water injection.
10-12-05, 06:05 PM
#5
Rotary Enthusiast
My opinion is that a properly tuned engine shouldn't need it. It's a crutch. The water is just taking up space that could be used by fuel and air.
That being said I guess water injection has it's place in certain hot rod applications.
That being said I guess water injection has it's place in certain hot rod applications.
10-12-05, 06:07 PM
#6
Full Member
Join Date: Sep 2003
Location: Minnesota
Posts: 179
Likes: 0
Received 0 Likes
on
0 Posts
Are you looking for some good facts on this subject or do you just want everyones i know whats best. Because there are alot of peeps on here that will give you their two cense. I don't know whats the best, if i'm correct, both methods are used basically to help move the heat out. If your running cooler, your making more power. I'm sure there is someone who can throw some numbers your way, if thats what your looking for.
Trending Topics
10-12-05, 08:41 PM
#10
It Just Feels Right
It was good enough for World War II fighters. Intake air at 20,000 feet is def cooler than what we're dealing with. Water injection has always been viewed as experimental. I'm considering it as a cheap bastard IC replacement. At least until I can afford a big one...
10-12-05, 09:05 PM
#11
Senior Member
Join Date: Jun 2002
Location: Monterey
Posts: 342
Likes: 0
Received 0 Likes
on
0 Posts
I run 100% water from the washer fluid tank. My car is fully tuned with sufficient mods so I dont use it as crutch, it just like how it keeps the intake temps down. Ive seen my intake temps drop up to 10 degrees C. by just getting into boost once or twice. Apneablue dynoed his FD with and without it and only lost 4hp with it on his setup. You can probably find the thread if you search. Hes also got some nice pics of his setup in the thread.
Ben
Ben
10-12-05, 09:31 PM
#13
Eats, Sleeps, Dreams Rotary
Originally Posted by Jason
I run 28 lbs of boost in my EV08 with alky injection and pump gas. I know its not the same as a rotary but it lets me run 9 more lbs of boost over stock boost levels. Its similar to running race gas but cheaper.
Jason
Jason
Jason, I guess you tuned for it since you are running more boost? I read on a water injection forum that the methanol can make measuring the a/f ratio difficult. How did you get around this?
10-12-05, 10:04 PM
#15
Originally Posted by 7racer
Jason, I guess you tuned for it since you are running more boost? I read on a water injection forum that the methanol can make measuring the a/f ratio difficult. How did you get around this?
Jason
10-12-05, 10:05 PM
#16
Eats, Sleeps, Dreams Rotary
Originally Posted by Jason
Yes I tuned for it and didnt notice any problems reading the A/F. I street tuned it and havent been on the dyno, so Im not sure about the torque gains.
Jason
Jason
10-12-05, 10:20 PM
#17
Rotary Enthusiast
Join Date: Mar 2001
Location: Edwards, CA
Posts: 1,023
Likes: 0
Received 0 Likes
on
0 Posts
Go to turbobuick.com, read about the results and make you're own decision. To me, getting the same results as running 110+ octane with a well sorted WI kit is amazing, but some see that as a bandaid.
10-12-05, 10:31 PM
#18
Originally Posted by John Magnuson
My opinion is that a properly tuned engine shouldn't need it. It's a crutch. The water is just taking up space that could be used by fuel and air.
https://www.rx7club.com/showthread.p...ighlight=29psi
Last edited by t-von; 10-12-05 at 10:33 PM.
10-12-05, 11:16 PM
#19
Senior Member
Join Date: Jun 2002
Location: Monterey
Posts: 342
Likes: 0
Received 0 Likes
on
0 Posts
Heres the thread, some pretty good info with dyno testing:
https://www.rx7club.com/showthread.p...ht=coolingmist
https://www.rx7club.com/showthread.p...ht=coolingmist
10-12-05, 11:29 PM
#20
At one of the tech seminars at Sevenstock, I asked this question to Rick Engeman. He said something along the lines of "I don't know why you'd need this on a car that is tuned well."
Personally, I think it would be interesting to test water injection as a replacement for an air-to-air intercooler. I've heard of at least a couple turbo Miata guys who've done this.
-s-
Personally, I think it would be interesting to test water injection as a replacement for an air-to-air intercooler. I've heard of at least a couple turbo Miata guys who've done this.
-s-
10-13-05, 04:28 AM
#21
Full Member
Join Date: Oct 2004
Location: Aucks, NZ
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by mibad
I'm considering it as a cheap bastard IC replacement. At least until I can afford a big one...
Even after beating the cars hard, the intake manifolds are still cool to touch. Generally setup to use the rear window washer tank for water storage - keeps it away from the warm engine bay.
http://pinz.acasa.co.nz/index.php?op...d=16&Itemid=27
Will certainly be getting one myself when I rebuild next month.
10-13-05, 07:57 AM
#22
Banzai Racing
I am running 21psi on 94 pump gas with WI. I am running a 50/50 water/meth mix and plan on tuning to 25psi. It does not matter how well you tune once you start exceeding 16psi on pump gas you start asking for trouble.
WI is as much of a bandaid as installing an ignition amp for spark break-up or a single turbo for more boost
WI is as much of a bandaid as installing an ignition amp for spark break-up or a single turbo for more boost
10-13-05, 07:58 AM
#23
Full Member
Join Date: Jan 2005
Location: Va
Posts: 80
Likes: 0
Received 0 Likes
on
0 Posts
I've been putting Meth in my engine for a while now. The car seems to run great, but the people begind keep running into things and actin all crazy..can't figure out why...
OOHHHH...you ment Meth-anol. Oh nevermind then.
- Phillip
OOHHHH...you ment Meth-anol. Oh nevermind then.
- Phillip
10-13-05, 08:23 AM
#24
fart on a friends head!!!
Originally Posted by FD3SR1
I have heard some mixed reviews on meth, some people swear by it others say its ok for a short time and then some say its not worth it. So im just wanting to hear some arguments on why or why not to use meth.
really, i dont know why people like to call it a bandaid. . . well i could understand this. . . but when people have purpose built cars and they add this type of injection. . . its different. just like bluetII said. . . ya know, i guess porting is a bandaid too. . . cause you can make more power with larger ports.
beyond that. . . i think its funny how people throw the bandaid thing out there. . . like theyre pros of tuning and car building!!! this car NEEDS bandaids. . . piston engine powered car owners laugh at us because we run an engine that blows so easily. . . i think the entire engine needs one gigantic bandaid to wrap up in so itll just stay together.
Last edited by rotorbrain; 10-13-05 at 08:27 AM.