En0203 2nd Gear September 29, 2003 Share September 29, 2003 but how come i heard from car dealers that RX-7 engine get spoilt easily ler ↡ Advertisement Link to post Share on other sites More sharing options...
Mmythos Neutral Newbie September 29, 2003 Share September 29, 2003 If it's so reliable, then why F1 isn't using it? With F1 current power output for a 3l size, if rotary is to be used, wouldn't it go to 1000+ bhp? Link to post Share on other sites More sharing options...
Regboyboy Neutral Newbie September 29, 2003 Author Share September 29, 2003 Which mag did u see it on? Link to post Share on other sites More sharing options...
Tiger156 Neutral Newbie September 30, 2003 Share September 30, 2003 Good question. Reliability and capability are limited by size and design. Notice that rotary engine is always small? And lesser parts may also mean that design/automotive engineers have lesser/limited areas for breakthrough. Unlike normal piston engines, you can change many things to make improvements. And these changes are cheaper because they are individual mechanisms. On a further note, rotary engines run hotter than normal engines and F1 engines cannot afford high heat with prolonged run. High fuel consumptions also means more pit stops, which is detrimental to their race. Link to post Share on other sites More sharing options...
Tiger156 Neutral Newbie September 30, 2003 Share September 30, 2003 Earlier engines does not have sufficient cooling systems. Rotary engines run at high temperature so if cooling is compromised, then !!! Adding things like turbos and aircons adds heat and load respectively. The catch is.... rotary engine by itself is reliable. However, the overall design of the system that supports it must be good to make the whole car reliable. I believe we will see a better supporting system in RX8 than in previous RX7s. Link to post Share on other sites More sharing options...
Mmythos Neutral Newbie September 30, 2003 Share September 30, 2003 haha.. maybe ur prof and my prof from different planet one cos my prof told us rotary engine isn't reliable as the wearout will cause critcal malfunction unlike reciprocating engine. Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 "Which mag did u see it on?" aiks..sorry eh.. i forgot the magazine name liao... give me some time to see if i can get the pic online Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 "haha.. maybe ur prof and my prof from different planet one cos my prof told us rotary engine isn't reliable as the wearout will cause critcal malfunction unlike reciprocating engine." mmm.. interesting.. so we actually have two sources saying different things.. anyway, i did read before rotary engine is more reliable becoz it has lesser moving parts. and the coolant part is also true besides, i also read that the seal technology is not there to support bigger rotary engine.. if i remember correctly the biggest rotary is about 1.8 only? as to how true is these articles i really don't know Link to post Share on other sites More sharing options...
Mmythos Neutral Newbie September 30, 2003 Share September 30, 2003 Rotary engines indeed have less moving parts and in terms of reliability of couse lesser parts means higher reliability. But the conbustion chamber of rotary engine is far less reliable than reciprocating engine cos if u look at the way rotary engine works the edge of the rotor tends to wear out fast and this wearout can result in 'leakeage' of the conbustion chamber... So you need to replace the edge rather frequent... Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 Rotary engines indeed have less moving parts and in terms of reliability of couse lesser parts means higher reliability. But the conbustion chamber of rotary engine is far less reliable than reciprocating engine cos if u look at the way rotary engine works the edge of the rotor tends to wear out fast and this wearout can result in 'leakeage' of the conbustion chamber... So you need to replace the edge rather frequent... oh i see.. now that's something new to me thanks! Link to post Share on other sites More sharing options...
Tiger156 Neutral Newbie September 30, 2003 Share September 30, 2003 Hahaha... Anyway, ultimately the car damn chio and damn powerful. Actually in terms of power-weight ratio, power-price ratio, and power-door ratio, all damn attractive. Imagine having 210 horses for S$129k, come with 4 doors, and looks really like an exotic car. Got money sure buy one. Dunno if Mazda will sell it soon. Link to post Share on other sites More sharing options...
Mmythos Neutral Newbie September 30, 2003 Share September 30, 2003 Even cheaper than RX-7. But heard that RX-7 basically spent 7 mths in the garage doing repairs ahha.. don know how true... I'd seen the RX-8 on the road, front and back view nice but not the side view... Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 "Hahaha... Anyway, ultimately the car damn chio and damn powerful. Actually in terms of power-weight ratio, power-price ratio, and power-door ratio, all damn attractive. Imagine having 210 horses for S$129k, come with 4 doors, and looks really like an exotic car. Got money sure buy one. Dunno if Mazda will sell it soon." yalor the look damn nice!!!! might get a second hand on in malaysia as a second car next time when i have some extra cash to spend.. a 2nd rx-7 only cost around RM90k in malaysia (~SGD$45k) and the car in malaysia never expired coz no COE Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 Hi! regboyboy, here's what i found, though it's a bit different from the pic that i saw in mag.. Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 here's the article... Link to post Share on other sites More sharing options...
Buzz Neutral Newbie September 30, 2003 Share September 30, 2003 Wah look veri serious man Link to post Share on other sites More sharing options...
En0203 2nd Gear September 30, 2003 Share September 30, 2003 "Wah look veri serious man" i don't know about u.. but i still prefer the look of old RX-7 FD3S Link to post Share on other sites More sharing options...
Regboyboy Neutral Newbie September 30, 2003 Author Share September 30, 2003 ok thanks ↡ Advertisement Link to post Share on other sites More sharing options...
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