Author Topic: Ice Cold Water or ice cubes in Water/methanol injection?  (Read 2628 times)

Offline DunnDeal12

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Would it be a good idea to use Ice cold water/methanol mix (1 degree above freezing) or ice cubes to aid cooling?
« Last Edit: 31 July 2012, 00:04 by DunnDeal12 »

Offline Agreeable Slick

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #1 on: 31 July 2012, 11:13 »
Why? :huh:

Offline Chris#101

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #2 on: 31 July 2012, 12:31 »
How do you plan keeping it cold  :grin:?


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Offline DunnDeal12

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #3 on: 31 July 2012, 16:54 »
found the answer i was looking for thanks to the guys on the evo forum  :smug:

Why? :huh:

to keep intake temps down at the pod plus using as an intercooler spray for a boost cooler.

How do you plan keeping it cold  :grin:?

well water/methanol mix has a freezing point of -48.5 so if i cooled it to -30 5 litres it would take quite a while to come up to temp. cooler intake temp = more power

Offline Agreeable Slick

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #4 on: 31 July 2012, 18:06 »
I highly doubt that it will make any difference unless you are going to massive power. Plus you'd need to change the compression ratio, timing, injection map it so it only doses on throttle wide open engine under 80%+ load, map the Ecu to compensate for it, emergency shut off if (when) it emptied.

Plus depending on where you mount the reservoir the heat soak would soon heat up the alcohol in the mixture

Offline DunnDeal12

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #5 on: 31 July 2012, 19:09 »
I highly doubt that it will make any difference unless you are going to massive power. Plus you'd need to change the compression ratio, timing, injection map it so it only doses on throttle wide open engine under 80%+ load, map the Ecu to compensate for it, emergency shut off if (when) it emptied.

Plus depending on where you mount the reservoir the heat soak would soon heat up the alcohol in the mixture

i run low compression JE pistons and timing has been adjusted via custom mapping and it will never be low enough to be empty. the tank is based in the boot with piping under the car so no heat soak. the skyline, evo and impreza boys seem to like it.
its going on the rollers next week so will update.

Offline danny_p

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Re: Ice Cold Water or ice cubes in Water/methanol injection?
« Reply #6 on: 03 August 2012, 21:46 »
latent heat of vaporisation

water, meth injection   mops up heat by vaporiseing    works bloody well if setup right  but no point in the stuff been cold,   what really mops up the heat is the change from liquid to vapour massive amount compared to a few degrees of liquid temp
all the VW's have gone bar 1.