How safe is meth injection on the LSJ
Senior Member
Joined: 02-03-08
Posts: 3,454
Likes: 1
From: Port Perry Ontario
well the butt dyno is all i got, and ive got nothing to prove so im not going to the time and expense of dynoing my car (cause real men always race dyno sheets). i know there is a slight power gain with the meth, as i said, not much. i can do a 3rd gear pull with and without meth and on my interceptor i can see the difference in timing, without the meth it will pull 2 to 3 degrees above 5000rpm. im running a stage 2 tune with a 2.85" pulley, knock retard is a fact of life. a small shot of meth gets rid of the knock retard, and as we all know adding 3 degrees of timing can make a difference.
dont say it will have negative effects on every car that isnt tuned for it. not every car will respond the same. its been run without issues on many lsj's, and it does help when your pushing the limits of the stage 2 tune.
dont say it will have negative effects on every car that isnt tuned for it. not every car will respond the same. its been run without issues on many lsj's, and it does help when your pushing the limits of the stage 2 tune.
Rent me! per hour
Joined: 03-22-07
Posts: 24,161
Likes: 20
From: Still fixing others mistakes.
if a true meth tune is in a car and you run out of meth. you have serious issues.
one. the afr leanes out
two. you run into a huge issue with timing
if a car is truely properly tuned for it. you must NOT run out. period. end of story.
sharkey. your butt dyno isn't calibrated. you ARE slower with the untuned water injection kit than without it. you're not thinking of the fuel being added, and you are not compensating for it. sure it's taking care of the knock, thats no big deal at all. however with air fuels of 9.8 and richer, you lost power. big time.
i get away with what i do due to various things.
one. the mixture i run
two. the timing i run
three. the afr i command {not actual}
these three things yield big power increases.
one. the afr leanes out
two. you run into a huge issue with timing
if a car is truely properly tuned for it. you must NOT run out. period. end of story.
sharkey. your butt dyno isn't calibrated. you ARE slower with the untuned water injection kit than without it. you're not thinking of the fuel being added, and you are not compensating for it. sure it's taking care of the knock, thats no big deal at all. however with air fuels of 9.8 and richer, you lost power. big time.
i get away with what i do due to various things.
one. the mixture i run
two. the timing i run
three. the afr i command {not actual}
these three things yield big power increases.
sharkey. your butt dyno isn't calibrated. you ARE slower with the untuned water injection kit than without it. you're not thinking of the fuel being added, and you are not compensating for it. sure it's taking care of the knock, thats no big deal at all. however with air fuels of 9.8 and richer, you lost power. big time.
New Member
Joined: 07-25-06
Posts: 196
Likes: 0
From: Connecticut
well the butt dyno is all i got, and ive got nothing to prove so im not going to the time and expense of dynoing my car (cause real men always race dyno sheets). i know there is a slight power gain with the meth, as i said, not much. i can do a 3rd gear pull with and without meth and on my interceptor i can see the difference in timing, without the meth it will pull 2 to 3 degrees above 5000rpm. im running a stage 2 tune with a 2.85" pulley, knock retard is a fact of life. a small shot of meth gets rid of the knock retard, and as we all know adding 3 degrees of timing can make a difference.
dont say it will have negative effects on every car that isnt tuned for it. not every car will respond the same. its been run without issues on many lsj's, and it does help when your pushing the limits of the stage 2 tune.
dont say it will have negative effects on every car that isnt tuned for it. not every car will respond the same. its been run without issues on many lsj's, and it does help when your pushing the limits of the stage 2 tune.
ok guys, its not like im a rookie at this ****. ive built and tuned enough boosted stuff (ive been working on top alcohol dragsters and funny cars for the past 12 years) to know how it all works. i bought the meth kit from a friend for dirt cheap, put it in with the expectations of gaining absolutly nothing. i was amazed when i tried back to back pulls with and without it and felt a difference. im not saying i gained 20hp, heck, id be surprised if 5hp showed up on a dyno. had i feld zero difference or even lost power, id take the kit out and sell it.
you guys can say what you want about it, i know what my car does.
you guys can say what you want about it, i know what my car does.
Last edited by Sharkey; Nov 10, 2008 at 02:28 AM.
New Member
Joined: 07-25-06
Posts: 196
Likes: 0
From: Connecticut
ok guys, its not like im a rookie at this ****. ive built and tuned enough boosted stuff (ive been working on top alcohol dragsters and funny cars for the past 12 years) to know how it all works. i bought the meth kit from a friend for dirt cheap, put it in with the expectations of gaining absolutly nothing. i was amazed when i tried back to back pulls with and without it and felt a difference. im not saying i gained 20hp, heck, id be surprised if 5hp showed up on a dyno. had i feld zero difference or even lost power, id take the kit out and sell it.
you guys can say what you want about it, i know what my car does.
you guys can say what you want about it, i know what my car does.
You Da' Man!
Senior Member
Joined: 08-22-06
Posts: 7,591
Likes: 1
From: In a house.
Before I got tuned for it I could tell the difference. While I don't think I got any more power, I still feel as if the car ran smoother under wot. It was most likely cause I was running a 2.8 with 42's and maxing out the injectors and the meth gave it the extra fuel it needed.
Senior Member
Joined: 06-28-06
Posts: 2,755
Likes: 0
From: Illinois
You are too!
I don't know why it is on this site more than any other you can never get a good answer from anyone. Someones always a hard ass, then another hard ass comes in arguing. Everyone thinks they know more then everyone else.
The only fact I've seen in this thread is that your butt dyno needs calibrated sharkey. The butt dyno is effected by the brain which is run on emotion and is a very powerful tool. You can fool yourself into believing all sorts of things. You running meth injection untuned and believing you are making more power is just like the guys with the 2.2s who filled up with race fuel and swear they got 20 more hp. You didn't, it's in your head.
I don't know why it is on this site more than any other you can never get a good answer from anyone. Someones always a hard ass, then another hard ass comes in arguing. Everyone thinks they know more then everyone else.
The only fact I've seen in this thread is that your butt dyno needs calibrated sharkey. The butt dyno is effected by the brain which is run on emotion and is a very powerful tool. You can fool yourself into believing all sorts of things. You running meth injection untuned and believing you are making more power is just like the guys with the 2.2s who filled up with race fuel and swear they got 20 more hp. You didn't, it's in your head.
as i said, i installed the kit expecting no gain whatsoever. ive been modding cars for a long time, i can admit when i do something and i have no gains. im not the guy doing some small mod that beleives he has huge gains. its not like im claiming 20hp gains, i did say it was a small gain.
no 2 cars are the same, nor do they respond the same. mine seems to work ok with meth untuned, others may not have that experiance.
no 2 cars are the same, nor do they respond the same. mine seems to work ok with meth untuned, others may not have that experiance.
Non Authorized / Non-Supporting
Joined: 10-17-07
Posts: 488
Likes: 0
From: Columbus, OH
Rodney
Have questions about water methanol injection give us a call directly at 801.447.2559 and we would be more then happy to go over and answer any questions you may have. At that time we can find out more information about your Cobalt and explain exactly what you can expect to gain from using a system.
Rodney
Rodney
Have questions about water methanol injection give us a call directly at 801.447.2559 and we would be more then happy to go over and answer any questions you may have. At that time we can find out more information about your Cobalt and explain exactly what you can expect to gain from using a system.
Rodney
Rodney
Non Authorized / Non-Supporting
Joined: 10-17-07
Posts: 488
Likes: 0
From: Columbus, OH
Rodney
Sure thing.
Last edited by AIS; Nov 11, 2008 at 03:10 PM. Reason: Automerged Doublepost
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