Piston Engines.
08-18-2003, 08:20 PM
#52
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
Originally Posted by Eric Happy Meal' date='Aug 18 2003, 01:53 PM
dsm's dont have crank problems. the crankwalk happens to less than half a percent to them.
but theyre allright cars, if you plan on racing people on the street it wont be a good idea because it needs high rpm launches to be fast, and you cant do many of those with that tranny.
but theyre allright cars, if you plan on racing people on the street it wont be a good idea because it needs high rpm launches to be fast, and you cant do many of those with that tranny.
08-18-2003, 08:37 PM
#53
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
From a non-biased standpoint
1. Rotaries have less frictional losses, this is especially true at high RPM's, where power is made. There is also no oil windage, which also robs a wee bit of power. Volumetric efficiency is where rotaries have a slight advantage. This is shown by the motors very high specific output. Thermal efficiency is where we lose out BIG time. We are small fast and light.
2. Piston engines....the backbone of our infrastructure. Diesels especially. From a sporting stand point, they make no sense, big heavy and dumb. The might of every motor company investing billions of dollars into R&D have made them so dead reliable. The reciprocating motion of them creates torque, which ppl feel. They suffer from enormous frictional losses at high rpm's, due to the large surface contact area of the piston's rings. The large area the the piston rings contact make them reliable. i'm not typing anymore because i'm my fingers are tired..hit me up on aim for a enlighting discussion
1. Rotaries have less frictional losses, this is especially true at high RPM's, where power is made. There is also no oil windage, which also robs a wee bit of power. Volumetric efficiency is where rotaries have a slight advantage. This is shown by the motors very high specific output. Thermal efficiency is where we lose out BIG time. We are small fast and light.
2. Piston engines....the backbone of our infrastructure. Diesels especially. From a sporting stand point, they make no sense, big heavy and dumb. The might of every motor company investing billions of dollars into R&D have made them so dead reliable. The reciprocating motion of them creates torque, which ppl feel. They suffer from enormous frictional losses at high rpm's, due to the large surface contact area of the piston's rings. The large area the the piston rings contact make them reliable. i'm not typing anymore because i'm my fingers are tired..hit me up on aim for a enlighting discussion
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