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Old 08-16-2005, 08:25 PM   #1
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Question Meth injection question

While on the dyno we were playing around with some methanol in a spray bottle, Tom was showing me how good it cooled. I was amazed how just a couple of quick squirts and a little breeze could cool metal down so fast.

So I decided to order the SnowPerformance stage 2 meth injection with the boost switch. We were looking into where to place it, and the idea came up about mounting the injectors in the charge pipe BEFORE the intercooler so it could cool quicker and give the meth a chance to dissapate before it got the the MAF.

So, whats your thoughts??


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Old 08-17-2005, 09:51 AM   #2
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i still would spary after the i maf, so it is cold going in.. but maybe i would also put it in the itake manifold as a small shot also. b\c i was sparying full blast on my s\c, w\ straight 200 proof achol. i wanted to spary after the charger also so it was cool it a little more. i wanted my temps lower. o well s\c gone now.

i have used both grain and wood achol. grain a little batter.

the reason why i wouldnt spary it before the ic is, because it wouldnt really get any cooler going throw the ic. but you can say it would dissipate before the intake manifold. so that my 2 cents.
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Old 08-17-2005, 09:22 PM   #3
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We used to alcohol inject bikes and it worked very well to avoid det. with the turbo kits. But this was with Carbed machines, we did inject it after the carb... There used to be a company that made a very cool tank that was the rear liscense plate holder, neat piece..
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Old 08-18-2005, 09:57 PM   #4
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You do not want to spray anything before the MAF, if that alcohol gets on the sensor you will peg the MAF at 4.8+ volts and run so rich you may damage something.
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Old 08-19-2005, 07:36 PM   #5
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For what I know it is not a good idea spray before the intercooler.
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Old 08-19-2005, 08:25 PM   #6
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How much better is putting the MAF after the turbo, this is something that is not really clear in my mind. let say that the maf is readind 3.0volts before the turboand the boost is set at 20psi at that moment , would it still read 3.0 volts if it blown thru under the same condition?.
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Old 08-19-2005, 09:23 PM   #7
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What the volts would be is hard to say , It will depend on many things

How far after or before a bend the MAF is installed
What size MAF housing
Size of the piping

And a few more things

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Old 08-20-2005, 08:12 PM   #8
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If you dont cool it before the MAF housing wouldn't that throw off you maf readings? Like the MAF would be reading say 94* IAT and you'ld actually have air in the cylinder several degrees cooler?

PS sending you a PM Tom
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Old 08-20-2005, 10:11 PM   #9
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Just off set the iat, spray in between maf and iat. may have to correct thechanges in advance depending on iat readings.
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Old 08-20-2005, 10:24 PM   #10
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this link may help: http://www.dsmtuners.com/forums/show....php?p=1625163
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