Rx8 Module Enjoy
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Rx8 Module Enjoy
http://www.rx7club.com/showthread.ph...hreadid=320546
Download and You'll Love it. Hell I dont even have an Rx8 and I was amazed by the dam diagrams.
Download and You'll Love it. Hell I dont even have an Rx8 and I was amazed by the dam diagrams.
Last edited by Fatman0203; Jun 24, 2004 at 04:15 AM.
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In the rotary engine, the rotor creates three chambers within the housing and three separate events in the 4-stroke cycle are taking place at the same time. Think of the rotor as doing the work of three pistons at once.
The displacement of a conventional reciprocating piston engine is calculated by multiplying the swept volume of one cylinder times the number of cylinders.
In a rotary engine, each rotor forms three working chambers, and rotor displacement is figured as the swept volume of one of those chambers. The swept volume is the chamber volume at its greatest minus the chamber volume at its smallest.
The total engine displacement is the displacement of one rotor times the number of rotors in the engine. In the 13B engine, the single chamber displacement = 40 cu.in. (654 cc). Since this is a two-rotor engine, the total engine displacement is twice this number or 80 cu.in. (1308 cc)
The displacement of a conventional reciprocating piston engine is calculated by multiplying the swept volume of one cylinder times the number of cylinders.
In a rotary engine, each rotor forms three working chambers, and rotor displacement is figured as the swept volume of one of those chambers. The swept volume is the chamber volume at its greatest minus the chamber volume at its smallest.
The total engine displacement is the displacement of one rotor times the number of rotors in the engine. In the 13B engine, the single chamber displacement = 40 cu.in. (654 cc). Since this is a two-rotor engine, the total engine displacement is twice this number or 80 cu.in. (1308 cc)
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Immediately after ignition takes place, the apex seal sweeps over the trailing spark plug hole. High pressure gases from combustion could leak into the next chamber. To reduce this leakage, the trailing spark plug hole is kept as small as possible. While the small hole makes the trailing spark plug more likely to foul at low speeds, it self-cleans at higher rpm.
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Originally posted by JasonHamilton
Is this where people get the 'drive it hard to make sure it stays working' from?
Is this where people get the 'drive it hard to make sure it stays working' from?
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That is interesting stuff. But since the engine actually does 3 cycles in one, it's really 1308 * 3 = 3924cc
Originally posted by Enzolor
Actually, no I think it's still considered 1308cc because that's the amount of displacement necessary to make one revolution of the eccentric shaft (recall that the shaft rotates at 3x the speed of the rotor).
Actually, no I think it's still considered 1308cc because that's the amount of displacement necessary to make one revolution of the eccentric shaft (recall that the shaft rotates at 3x the speed of the rotor).
However, if your logic were the case, a reciprocating piston engine would be measured at 1/2 of its actual displacement since it takes two revolutions of the crankshaft for a cylinder to complete a combustion cycle. That would make a 2.5 liter engine a 1.25 - the opposite of what most people argue in that the rotary 1.3 is effectively a 2.6.
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Psssst..... Rotor does the work of 3 pistons... 3.9
But to be accurate and measure them both the same way.
The displacement of a piston engine is the volume displaced by compression during one complete turn of the crankshaft times the number of pistons. Commonly expressed as piston area times stroke times number of pistons or compressed volume times number of pistons.
The displacement of a rotary engine is the volume displaced by compression during one complete turn of the excentric shaft times the number of rotors. Commonly expressed by maximum volume at start of compression minus volume at end of compression times number of rotors or compressed volume times number of rotors.
The efficencies of the rotary engine design is what makes it unique in that each rotor does the total work of 3 pistons. That, however has nothing to do with actual displacement.
But to be accurate and measure them both the same way.
The displacement of a piston engine is the volume displaced by compression during one complete turn of the crankshaft times the number of pistons. Commonly expressed as piston area times stroke times number of pistons or compressed volume times number of pistons.
The displacement of a rotary engine is the volume displaced by compression during one complete turn of the excentric shaft times the number of rotors. Commonly expressed by maximum volume at start of compression minus volume at end of compression times number of rotors or compressed volume times number of rotors.
The efficencies of the rotary engine design is what makes it unique in that each rotor does the total work of 3 pistons. That, however has nothing to do with actual displacement.
Last edited by RX4+30Years=RX8; Jun 25, 2004 at 09:55 AM.
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Hey, I'm still watching the module and I am on the VFAD part. I was wondering if it would do harm if we leave the VFAD door open at all times. They just said that it is not open due to increase in noise. I mean come on, how noisy could it get? :D
Anyone interested in creating a hack for this to let the VFAD open even at lower RPMs?
Anyone interested in creating a hack for this to let the VFAD open even at lower RPMs?
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Originally posted by Xyntax
Hey, I'm still watching the module and I am on the VFAD part. I was wondering if it would do harm if we leave the VFAD door open at all times. They just said that it is not open due to increase in noise. I mean come on, how noisy could it get? :D
Anyone interested in creating a hack for this to let the VFAD open even at lower RPMs?
Hey, I'm still watching the module and I am on the VFAD part. I was wondering if it would do harm if we leave the VFAD door open at all times. They just said that it is not open due to increase in noise. I mean come on, how noisy could it get? :D
Anyone interested in creating a hack for this to let the VFAD open even at lower RPMs?
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From what the design looks like, the VFAD door seems to be free but with a spring to make it close at all time. The VFAD opener (module) just pushes the door to open it. I think even a clip could hold that door open and the opener won't even notice a difference.
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I just found this from racing beat's site. They mentioned about a VFAD modification, but their methods were more drastic. Check it out: http://www.racingbeat.com/FRmazda4.htm
Go to the middle, before Follow-up Notes, it says:
1. Intake – enlarging the oval inlet to the factory air box - +2 HP (this modification eliminates the VFAD intake duct.) Developmental work is still being undertaken.
:D
Go to the middle, before Follow-up Notes, it says:
1. Intake – enlarging the oval inlet to the factory air box - +2 HP (this modification eliminates the VFAD intake duct.) Developmental work is still being undertaken.
:D
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Originally posted by MarthaStewart
How did you make this The Original Renesis GIF. Thats a real nice animation. Can you please tell us.
Thanks.
How did you make this The Original Renesis GIF. Thats a real nice animation. Can you please tell us.
Thanks.
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