Rx-8 redesign scheduled for 2010
08-23-2006, 12:11 AM
#78
Senor Carnegrande
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I ordered a DVD about hydrogen supplementation for gas engines running alternative fuels--ethanol, turpines, CNG, even diesel. Forget about running a renesis on pure H2, I'd like to see what it could do with just 5%~7%. That's all it takes to get the main benefit of H2, which is dramatically higher flame speed. Adding a small bit of hydrogen is like adding lighter fluid to your charcoal to get it lit faster. Yes, the charcoal (gasoline) has more energy, but it lights up relatively slowly. In a best case scenario, a gasoline-air mixture's flame will travel around 5,000 ft. per second. For hydrogen, it's more like 40,000 ft/sec. The difference is dramatic enough that you really need to retard your timing to take full advantage. It has advantages for piston motors, but for rotaries with their elongated combustion chambers, the improvement would be even more dramatic, I'd bet.
BTW, be very sceptial of any device that claims to produce hydrogen on the fly by using the vehicle's 12V power supply. This is most of the H2 supplement kits available right now. They may produce a little H2 (some don't produce any apparently), but it won't be enough to make a difference in combustion--it needs to be at least 5%, thus you need to carry a small H2 tank in your trunk. Or at least that's what this guy says. He goes through the calculations, and even using the most efficient electrolyzers and alternators available, you won't produce a net increase in HP or efficiency.
BTW, be very sceptial of any device that claims to produce hydrogen on the fly by using the vehicle's 12V power supply. This is most of the H2 supplement kits available right now. They may produce a little H2 (some don't produce any apparently), but it won't be enough to make a difference in combustion--it needs to be at least 5%, thus you need to carry a small H2 tank in your trunk. Or at least that's what this guy says. He goes through the calculations, and even using the most efficient electrolyzers and alternators available, you won't produce a net increase in HP or efficiency.
08-31-2006, 02:41 PM
#79
DaveCm
Join Date: Apr 2006
Location: Central North Carolina
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Originally Posted by DrDiaboloco
Technically, it's not really a sports car to begin with, it's a sport coupe. "Real" sports cars don't have four doors and don't have rear seats that you can actually USE... And yes, I consider the rear seats of this car usable, unlike the rear seats in "real" sports cars that have vestigal rear seats like the 911..
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