GolfGTIforum.co.uk
General => The garage => Topic started by: DunnDeal12 on 30 July 2012, 21:13
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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?
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Why? :huh:
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How do you plan keeping it cold :grin:?
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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
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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
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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.
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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