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356-930 356-930 is offline
Acceleration Junkie
Join Date: Aug 2007
Location: Laguna Beach, CA
Posts: 263
Water/Methanol injection works to raise effective octane of gasoline/fuel. The system I use (Snow Performance) claims effective octane can be raised from 91 to 116 by use of its water/meth injection system.
For 930 engines without an intercooler, water/meth acts to take its place. Intercooled engines benefit from water/meth by adding still more cooling.
Water/meth by itself does nothing to increase power. What it does is allow timing to be advanced which results in greater power.
Dyno results posted on Snow’s website (water cooled engines) show HP increase of 5-10% and torque increase of 10-15%.
Because the 930 engine cannot live with detonation, I do not recommend tuning it for max hp/torque by benefit of water/methanol but rather as added insurance against detonation. In other words, tune for max power without injecting water/meth, then “turn the system on.”
$600 to prevent a $6000 repair = cheap insurance.
To learn more, go to
Chris Toy
356-930 Gone
Old 02-03-2009, 09:07 AM
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