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Is methonal necassary?

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Old Oct 28, 2007 | 09:52 AM
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Default Is methonal necassary?

I am having my motor freshened up and was told that meth. would help it last longer. I have heard it robs horsepower and then read it gives you more, so which is it? I have a 395 stroker with a DISC. It made about 700 rwhp then it dropped a lifter and almost trashed the motor. Comp R's with about 5k miles.
Thanks DG
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Old Oct 28, 2007 | 11:51 AM
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I don't know any way that it could rob HP... Where did you hear that? Meth will definitely help. It increases equivalent octane and cools the IAT's way down and prevents detonation.
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Old Oct 28, 2007 | 12:04 PM
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Say not changing anything other than adding the meth. will add HP?
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Old Oct 28, 2007 | 12:09 PM
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pretty much. Might have to change the tune a bit.
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Old Oct 28, 2007 | 12:28 PM
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Originally Posted by David Gordon
Say not changing anything other than adding the meth. will add HP?
It should add a little by itself due to the lower IAT's. However, where you will pick up more power from meth is in adding in more timing- which meth allows you to do.
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Old Oct 28, 2007 | 03:39 PM
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Is meth. and alky the same?
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Old Oct 28, 2007 | 05:09 PM
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If you run methanol,just becareful,because you have to lean out your a/f when running meth,and then if you run out of it,it will go lean and hurt your engine.
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Old Oct 28, 2007 | 05:19 PM
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I am thinking of running it on my setup.
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Old Oct 28, 2007 | 05:25 PM
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Originally Posted by 02SSLE
I am thinking of running it on my setup.
Just get a bigger/better intercooler and you won't have to worry about using it! My understanding is that methanol is used to keep your iat's down? If you intercooler is efficent enough and correct in size for your hp goal's you would not need it! Meth is just one more thing to worry or forget about.
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Old Oct 28, 2007 | 05:51 PM
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Originally Posted by HUNTER02SS
Just get a bigger/better intercooler and you won't have to worry about using it! My understanding is that methanol is used to keep your iat's down? If you intercooler is efficent enough and correct in size for your hp goal's you would not need it! Meth is just one more thing to worry or forget about.
I agree, I have a FMI from EPP. Seems to work well. They have mad I think it was 940 RWH threw a TH400 with it.
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Old Oct 28, 2007 | 05:57 PM
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If that is the one you have,I wouldn't worry about using meth.Like someone else told me,meth is a cheap intercooler kit!
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Old Oct 28, 2007 | 06:33 PM
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Originally Posted by HUNTER02SS
If that is the one you have,I wouldn't worry about using meth.Like someone else told me,meth is a cheap intercooler kit!
But it also adds very detination resist fuel also. Meth is fuel. It just also cools intake charge.

Your not giving it enough credit.
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Old Oct 28, 2007 | 06:41 PM
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Originally Posted by Dragframe
But it also adds very detination resist fuel also. Meth is fuel. It just also cools intake charge.

Your not giving it enough credit.
I am not saying it is a bad thing, it is just unecesary to use if you setup is though out! it dos offer detination resistant fuel until you forgot that you are out of it and lean your motor out and burn up your head's. Ask stevieturbo! That is what happened to him.His meth kit didn't work or something and burned up his plug's and messed his head's up.If you are making the hp#'s that you would need to use it,then you should just use race fuel!
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Old Oct 28, 2007 | 07:15 PM
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No more than I drive mine a tank of meth would last years. 2001 model with 17k miles and most were done the first year. So I am thinking adding meth w/ the intercooler I have would benifit somewhat.
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Old Oct 28, 2007 | 07:35 PM
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Originally Posted by David Gordon
No more than I drive mine a tank of meth would last years. 2001 model with 17k miles and most were done the first year. So I am thinking adding meth w/ the intercooler I have would benifit somewhat.
Methanol evaporate's. Just becareful when using it. You will have to lean your a/f out when tuning with it. Good Luck!
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Old Oct 28, 2007 | 10:13 PM
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I am still on the debate wether I will use it or not, I agree with hunter and I think I will opt for not using it. I built my 408 with 8.5 CR so I didn't ahve to worry as much about the fuel when turning up the boost. More street friendly in which it will mostly be
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Old Oct 28, 2007 | 11:35 PM
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If you know what you're doing, methanol is quite useful. I chose a T67 on my front mount for fast spool; using an AlkyControl kit (on top of my FMIC) I see IATs about 30 degrees F. below ambient. I make the power in my sig on 11 psi, forged LS6. If you put a lot of miles on your car then it may be a hassle to keep filling up the methanol tank... but for the occasionally driven "fun" car, it's a no brainer to keep the tank topped off. I also have my wideband set up to audible alarm if I'm over 80% throttle and the AFR goes leaner than 12.5.
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Old Oct 29, 2007 | 12:05 AM
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Originally Posted by HUNTER02SS
Just get a bigger/better intercooler and you won't have to worry about using it! My understanding is that methanol is used to keep your iat's down? If you intercooler is efficent enough and correct in size for your hp goal's you would not need it! Meth is just one more thing to worry or forget about.

you are seriously discrediting something that you it sounds like you haven't even tried. You can tune for 11.5 off the alk and let it fatten up to high 10s and you will get cooling below ambient. No A2A can do that. I have an A2A too, but the meth is awesome. Even at the 9psi lo-boost setting I run, you can FEEL the difference. It adds octane too that also fights detonation (as does the lower IATs). It can sit in your tank for a long time and not evaporate either. Oh yeah, you KNOW what a few degrees of timing is worth too.
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Old Oct 29, 2007 | 12:13 AM
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Originally Posted by Frost
you are seriously discrediting something that you it sounds like you haven't even tried. You can tune for 11.5 off the alk and let it fatten up to high 10s and you will get cooling below ambient. No A2A can do that. I have an A2A too, but the meth is awesome. Even at the 9psi lo-boost setting I run, you can FEEL the difference. It adds octane too that also fights detonation (as does the lower IATs). It can sit in your tank for a long time and not evaporate either. Oh yeah, you KNOW what a few degrees of timing is worth too.
Well said.
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Old Oct 29, 2007 | 12:19 AM
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Originally Posted by HUNTER02SS
If you are making the hp#'s that you would need to use it,then you should just use race fuel!
Consider this: On a street driven vehicle, fill up with race fuel at $6 or more a gallon, then 90% of the driving is putting around in stop/go traffic. Alot of precious fuel goes to waste. In my setup, I can run around with any 92 octane in the tank, and the meth is boost activated to give the better octane when I need it. This allows me to run a few more psi boost on pump gas than without it. If it runs out, I would just stay off WOT until getting more.
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