Another Crackpot Engine Design?
07-01-2005, 03:06 PM
#11
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Join Date: Feb 2004
Location: Orange Park FL
Posts: 363
They don't show it, but the scotch yokes & the cylinder positioning gear are probably enclosed in a crankcase.
Ya gotta know those yokes are gonna get hot.
The side ports remind me of a Sterling engine.
Ya gotta know those yokes are gonna get hot.
The side ports remind me of a Sterling engine.
07-01-2005, 05:16 PM
#12
Senior Member
Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
the rotary is a very reliable motor, as long as its not in a 3rd gen.
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
07-02-2005, 06:27 AM
#13
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Join Date: Nov 2003
Location: Ireland
Posts: 907
[quote name='teknics' date='Jul 1 2005, 11:16 PM']the rotary is a very reliable motor, as long as its not in a 3rd gen.
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
[/quote]
Exactly! They said the 787b that won the Le Mans could have done another 24 hours.
The only piston engines that come close to rotaries are 170bhp/litre bike engines which start to deteriorate at 50k miles - 10 year rotaries have been making lots more than that and are still running strong.
Mark
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
[snapback]733075[/snapback]
[/quote]
Exactly! They said the 787b that won the Le Mans could have done another 24 hours.
The only piston engines that come close to rotaries are 170bhp/litre bike engines which start to deteriorate at 50k miles - 10 year rotaries have been making lots more than that and are still running strong.
Mark
07-02-2005, 11:34 AM
#14
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Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
[quote name='inanimate_object' date='Jul 2 2005, 06:27 AM']Exactly! They said the 787b that won the Le Mans could have done another 24 hours.
The only piston engines that come close to rotaries are 170bhp/litre bike engines which start to deteriorate at 50k miles - 10 year rotaries have been making lots more than that and are still running strong.
Mark
[/quote]
yea everyone says "oh the reliability sucks" yea, if you beat the **** out of it.
Also i like the rotary valve camshaft thingy they designed for piston engines, i forget who made it.
kevin.
The only piston engines that come close to rotaries are 170bhp/litre bike engines which start to deteriorate at 50k miles - 10 year rotaries have been making lots more than that and are still running strong.
Mark
[snapback]733287[/snapback]
[/quote]
yea everyone says "oh the reliability sucks" yea, if you beat the **** out of it.
Also i like the rotary valve camshaft thingy they designed for piston engines, i forget who made it.
kevin.
07-02-2005, 01:14 PM
#15
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Join Date: May 2003
Location: Orange County, NY
Posts: 635
[quote name='inanimate_object' date='Jul 2 2005, 07:27 AM']Exactly! They said the 787b that won the Le Mans could have done another 24 hours.
[/quote]
That reliability point is mute for us normal folk.
787b motor is NA. The only easily accessible NA Rotary motor we have are the 12a, 13b, and Renesis, all making "Sub-par" Horsepower unless introduced to FI. Once FI is there to make up for the lack of 2 more rotor's, reliability drops....
[snapback]733287[/snapback]
[/quote]
That reliability point is mute for us normal folk.
787b motor is NA. The only easily accessible NA Rotary motor we have are the 12a, 13b, and Renesis, all making "Sub-par" Horsepower unless introduced to FI. Once FI is there to make up for the lack of 2 more rotor's, reliability drops....
07-02-2005, 02:31 PM
#16
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Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
[quote name='PhoenixDownVII' date='Jul 2 2005, 01:14 PM']That reliability point is mute for us normal folk.
787b motor is NA. The only easily accessible NA Rotary motor we have are the 12a, 13b, and Renesis, all making "Sub-par" Horsepower unless introduced to FI. Once FI is there to make up for the lack of 2 more rotor's, reliability drops....
[/quote]
no, if you dont abuse the FI, its all good. Its when we push the envelope that **** pops.
kevin.
787b motor is NA. The only easily accessible NA Rotary motor we have are the 12a, 13b, and Renesis, all making "Sub-par" Horsepower unless introduced to FI. Once FI is there to make up for the lack of 2 more rotor's, reliability drops....
[snapback]733356[/snapback]
[/quote]
no, if you dont abuse the FI, its all good. Its when we push the envelope that **** pops.
kevin.
07-02-2005, 09:40 PM
#17
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
[quote name='teknics' date='Jul 1 2005, 05:16 PM']the rotary is a very reliable motor, as long as its not in a 3rd gen.
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
[/quote]
oh really? not my enduro motors. 62 hour inbetween rebuilds 750hp chevy. touche
judd v8 and v10 go for 45 hours before needing a simple freshining (rings bearings, seals)
lost of endurance racers dont need to rebuild their engine after every race, unlike the piston engine guys who tear it down after every race. probably another reason its banned, too easy.
kevin.
[snapback]733075[/snapback]
[/quote]
oh really? not my enduro motors. 62 hour inbetween rebuilds 750hp chevy. touche
judd v8 and v10 go for 45 hours before needing a simple freshining (rings bearings, seals)
07-03-2005, 07:09 AM
#18
Senior Member
Join Date: May 2003
Location: Orange County, NY
Posts: 635
[quote name='teknics' date='Jul 2 2005, 03:31 PM']no, if you dont abuse the FI, its all good. Its when we push the envelope that **** pops.
kevin.
[/quote]
So if I mod my 13b conservatively, but still push high HP, I can yield near 200k out of a 13b? My point was about HP (which creates more heat/stress, the more the worse-off for a rotary)
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
kevin.
[snapback]733379[/snapback]
[/quote]
So if I mod my 13b conservatively, but still push high HP, I can yield near 200k out of a 13b? My point was about HP (which creates more heat/stress, the more the worse-off for a rotary)
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
07-05-2005, 03:13 PM
#19
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Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
[quote name='PhoenixDownVII' date='Jul 3 2005, 07:09 AM']So if I mod my 13b conservatively, but still push high HP, I can yield near 200k out of a 13b? My point was about HP (which creates more heat/stress, the more the worse-off for a rotary)
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
[/quote]
whatever you wanna believe, god.
kevin.
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
[snapback]733578[/snapback]
[/quote]
whatever you wanna believe, god.
kevin.
07-05-2005, 09:15 PM
#20
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
[quote name='PhoenixDownVII' date='Jul 3 2005, 04:09 AM']So if I mod my 13b conservatively, but still push high HP, I can yield near 200k out of a 13b? My point was about HP (which creates more heat/stress, the more the worse-off for a rotary)
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
[/quote]
actually most rotaries live on a time clock, they seem to go for 6-8 years, the 1st gens did, the turbo cars did etc etc. the exceptions are the gsl-se's and the na fc's
Just never happens, coolant seals are bound to go with any turbo setup at some point in time before anything stupendous mileage wise...*shrug* eh?
[snapback]733578[/snapback]
[/quote]
actually most rotaries live on a time clock, they seem to go for 6-8 years, the 1st gens did, the turbo cars did etc etc. the exceptions are the gsl-se's and the na fc's