Red Line
Super Moderator
Joined: Jul 2001
Posts: 17,839
From: NJ
rx7's come from the factory with this round thing. it has red.uuuuummmmm lines on it. that would be the factory redline and yes they have redlines. they like to rev and are less to damage anything over revving but it depends. the redline is there for a reason 
Senior Member
Joined: Apr 2002
Posts: 870
From: NASA/JSC - Clear Lake, TX
oh yeah, like most things that that are physical, rotary engines have natural frequencies / yield stresses / fatique limits / etc.
as a result, rotary engines have red lines, or a limit as to how fast the internal parts can revolve without failing. this might be a surprise because of the deseptively smooth, free revving nature of the wankel, however, it is purely a myth. ROTARIES HAVE A REDLINE, JUST LIKE EVERY OTHER ENGINE.
1st gen: 7K
2nd gen (s4): 7K
2nd gen (s5 NA): 8K
3rd gen : 7.5 K?
RX-8: 9K
as a result, rotary engines have red lines, or a limit as to how fast the internal parts can revolve without failing. this might be a surprise because of the deseptively smooth, free revving nature of the wankel, however, it is purely a myth. ROTARIES HAVE A REDLINE, JUST LIKE EVERY OTHER ENGINE.
1st gen: 7K
2nd gen (s4): 7K
2nd gen (s5 NA): 8K
3rd gen : 7.5 K?
RX-8: 9K
Senior Member
Joined: Apr 2003
Posts: 2,259
From: Schofield Barracks, HI
Originally Posted by RX7Aggie' date='Jan 22 2004, 12:54 AM
oh yeah, like most things that that are physical, rotary engines have natural frequencies / yield stresses / fatique limits / etc.
as a result, rotary engines have red lines, or a limit as to how fast the internal parts can revolve without failing. this might be a surprise because of the deseptively smooth, free revving nature of the wankel, however, it is purely a myth. ROTARIES HAVE A REDLINE, JUST LIKE EVERY OTHER ENGINE.
1st gen: 7K
2nd gen (s4): 7K
2nd gen (s5 NA): 8K
3rd gen : 7.5 K?
RX-8: 9K
as a result, rotary engines have red lines, or a limit as to how fast the internal parts can revolve without failing. this might be a surprise because of the deseptively smooth, free revving nature of the wankel, however, it is purely a myth. ROTARIES HAVE A REDLINE, JUST LIKE EVERY OTHER ENGINE.
1st gen: 7K
2nd gen (s4): 7K
2nd gen (s5 NA): 8K
3rd gen : 7.5 K?
RX-8: 9K
1st gen: 7K
2nd gen (s4 na and turbo) - 7k
2nd gen (s5 gtus): 8K .... (turbo) 7k
3rd gen : 8.5k
RX-8: 9K
Senior Member
Joined: Mar 2002
Posts: 2,723
From: Ky
Originally Posted by djgiantrobot' date='Jan 22 2004, 01:06 AM
just think, with no redline, you wouldn't need gears! put it in first and keep going
Heres a little story one day i decided to let someone i know drive my car they started out going nice and easy through the first few gears and then started to push a little harder. I told them not to go over redline, they look over and ask wheres the redline i dont see it? I amediatly had them pull my car over and get out.