Quote:
Originally Posted by Gamerse
For my technical inquery, isn't propane technically a dry fuel, and as such, it has less effect on the charge temp in comparison to ohh say, water, meth, alcahol?
Its downfall I would think is the install costs. The cheapest kits I've seen start around $600.00  |
you gotta remember though, when a gas goes from high pressure to low pressure, it's temperature will drop. propane goes from a liquid state (very high pressure) to a gaseous state (much lower pressure) so it cools down significantly. that has a cooling effect on the intake charge.
i don't remember what ipo used to sell his kits for, but it was less than $600. i know DR used to sell a kit. don't remember the specific cost, but i believe it was under 600 as well. and after that, propane is relatively cheap to refill, as is meth/water.
as far as results, i don't have the webpage offhand, but i remember ipo did some tests with a datalogger a few years ago on a 17g vr4, and knock was all but eliminated. i don't remember the specifics of the test as it's been a year or two since i visited that page.