VocalNeal Posted May 7, 2014 Share Posted May 7, 2014 Thinking back to my machine shop days a shaper has a slow forward speed and a faster return speed so it is probably a factor of conrod length so it maybe an under-square engine. Stab in the dark to get the ball rolling 1.8l MX-5 Link to comment Share on other sites More sharing options...
Spoonman Posted May 7, 2014 Share Posted May 7, 2014 I reckon it is prolly some small cc capacity radio control engine like a 3.5cc nitro glow plug motor. Link to comment Share on other sites More sharing options...
guzzi850m2 Posted May 7, 2014 Share Posted May 7, 2014 Honda S2000? http://hondaswap.com/threads/engines-with-the-fastest-piston-speeds.72614/ Link to comment Share on other sites More sharing options...
Woodsie888 Posted May 7, 2014 Share Posted May 7, 2014 Honda S2000? http://hondaswap.com/threads/engines-with-the-fastest-piston-speeds.72614/ I suggested S2000 in an earlier post, but apparently that isn't the answer being looked for. Link to comment Share on other sites More sharing options...
transam Posted May 7, 2014 Share Posted May 7, 2014 Thought it was modern F1 engines, smallish displacement with incredibly high rpm. Link to comment Share on other sites More sharing options...
Jitar Posted May 7, 2014 Share Posted May 7, 2014 One for the technical which I stumbled onto the other day whilst researching something for the another "bike" forum Which production car has the fastest piston speed. Audi RS4 B7 4.2L V8 mean piston speed 25.7m/s at 8,250rpm. Link to comment Share on other sites More sharing options...
VocalNeal Posted May 7, 2014 Share Posted May 7, 2014 Honda S2000? http://hondaswap.com/threads/engines-with-the-fastest-piston-speeds.72614/ I suggested S2000 in an earlier post, but apparently that isn't the answer being looked for. I was happy with that answer. Until Google came along! Link to comment Share on other sites More sharing options...
Woodsie888 Posted May 7, 2014 Share Posted May 7, 2014 Honda S2000? http://hondaswap.com/threads/engines-with-the-fastest-piston-speeds.72614/ I suggested S2000 in an earlier post, but apparently that isn't the answer being looked for. I was happy with that answer. Until Google came along! Hmmm... Thinking cap time. Link to comment Share on other sites More sharing options...
VocalNeal Posted May 8, 2014 Share Posted May 8, 2014 (edited) Woodsie, As has been said Audi overtook Honda so the Audi is correct. So what about the fastest piston acceleration? Edited May 8, 2014 by VocalNeal Link to comment Share on other sites More sharing options...
Ace of Pop Posted May 8, 2014 Share Posted May 8, 2014 Why can you buy a New Ride and the Wheels have loads of Stick on Balance Weight's. Then Buy New Tires and the Weights have all but gone. ?.... A question put to me today by a Chevy MU owner...never mind the Pistons hes a bit shocked. Link to comment Share on other sites More sharing options...
Spoonman Posted May 8, 2014 Share Posted May 8, 2014 Why can you buy a New Ride and the Wheels have loads of Stick on Balance Weight's. Then Buy New Tires and the Weights have all but gone. ?.... A question put to me today by a Chevy MU owner...never mind the Pistons hes a bit shocked. All 4 wheels ? Rears dont need to be balanced but front do and unless they have managed a perfect combination they will need some lead to sort the balance. Link to comment Share on other sites More sharing options...
transam Posted May 8, 2014 Share Posted May 8, 2014 Why can you buy a New Ride and the Wheels have loads of Stick on Balance Weight's. Then Buy New Tires and the Weights have all but gone. ?.... A question put to me today by a Chevy MU owner...never mind the Pistons hes a bit shocked. All 4 wheels ? Rears dont need to be balanced but front do and unless they have managed a perfect combination they will need some lead to sort the balance. Wrong................. Link to comment Share on other sites More sharing options...
Spoonman Posted May 8, 2014 Share Posted May 8, 2014 please elaborate on what part is wrong. Link to comment Share on other sites More sharing options...
transam Posted May 8, 2014 Share Posted May 8, 2014 please elaborate on what part is wrong. An unbalanced rear wheel can fugg an axle bearing AND will/can cause vibration in the ride. Link to comment Share on other sites More sharing options...
Spoonman Posted May 8, 2014 Share Posted May 8, 2014 Not in my experience and that of many tyre shops. Link to comment Share on other sites More sharing options...
transam Posted May 8, 2014 Share Posted May 8, 2014 Not in my experience and that of many tyre shops. Up to you............................. Link to comment Share on other sites More sharing options...
Popular Post Woodsie888 Posted May 8, 2014 Popular Post Share Posted May 8, 2014 Why can you buy a New Ride and the Wheels have loads of Stick on Balance Weight's. Then Buy New Tires and the Weights have all but gone. ?.... A question put to me today by a Chevy MU owner...never mind the Pistons hes a bit shocked. All 4 wheels ? Rears dont need to be balanced but front do and unless they have managed a perfect combination they will need some lead to sort the balance. Not in my experience. Rears are just as important. 3 Link to comment Share on other sites More sharing options...
Ace of Pop Posted May 8, 2014 Share Posted May 8, 2014 It came with the Rear Wheel heavily balanced from the Showroom. i saw it but as usual wasn't surprised not being Honda or Toyo Precision. O.K. pause for Yawn.........Now the Michelin Folks say the Bridgestone was a crappy mould that just squeeze through SQA,hence the load of balance strips. All Honda's and Chevs come balanced F&R by the way. The Change was due to he chucks em away after 2 Year ,regardless of ware. So who thinks the Mould was out.?. Link to comment Share on other sites More sharing options...
Ace of Pop Posted May 8, 2014 Share Posted May 8, 2014 How Many Tire Shops you been in Gooney, apart from Bicycle Tire Shops... Link to comment Share on other sites More sharing options...
Jitar Posted May 9, 2014 Share Posted May 9, 2014 Woodsie, As has been said Audi overtook Honda so the Audi is correct. So what about the fastest piston acceleration? OK now that the tyre balance is sorted, some piston speed and acceleration from another forum. Audi R8 V10 5.2L 560hp - at 8700 RPM, average piston speed is 26.9m/s, max. piston acceleration is around 5000g. Ferrari 458 Italia V8 4.5L 570hp - at 9000 RPM, average piston speed is 28.2m/s, max. piston acceleration is somewhere around 5400g. The Ferrari V8 Stroke is 81mm so the piston speed above seems wrong. The Audi V10 maybe the production engine piston speed & acceleration champ? For comparison, some other engines quoted were: 2003 BMW F1 engine at 19000 RPM, average piston speed is about 25m/s, max. piston acceleration is around 10000g. 2006 Cosworth CA F1 engine at 20,000 rpm piston acceleration 10,616g. 3.5cc R/C racing engine, 16 mm stroke and 48,000 rpm 25.6 m/s 26,000g Link to comment Share on other sites More sharing options...
Spoonman Posted May 9, 2014 Share Posted May 9, 2014 How Many Tire Shops you been in Gooney, apart from Bicycle Tire Shops... Your childish behavior does not warrant an accurate answer Iam afraid. if you want to hold an adult conversation or ask an adult question you will need to start acting like one. Link to comment Share on other sites More sharing options...
Ace of Pop Posted May 9, 2014 Share Posted May 9, 2014 You should have been a Preacher Young Man. Some of us just enjoy ourselves, others like You just Show Off their limited knowledge Link to comment Share on other sites More sharing options...
transam Posted May 9, 2014 Share Posted May 9, 2014 Just another point about balancing ALL the wheels, when you go for a service they swap the wheels around, rear to the front, front to the rear. Link to comment Share on other sites More sharing options...
Spoonman Posted May 9, 2014 Share Posted May 9, 2014 Just another point about balancing ALL the wheels, when you go for a service they swap the wheels around, rear to the front, front to the rear. If they are not performing a new balance when they rotate I would look for another place to service my vehicle. Link to comment Share on other sites More sharing options...
transam Posted May 9, 2014 Share Posted May 9, 2014 Just another point about balancing ALL the wheels, when you go for a service they swap the wheels around, rear to the front, front to the rear. If they are not performing a new balance when they rotate I would look for another place to service my vehicle. Never seen wheels being balanced during a service. Your place don't balance the rears anyhooooooooooo.... Link to comment Share on other sites More sharing options...
Spoonman Posted May 9, 2014 Share Posted May 9, 2014 (edited) Just another point about balancing ALL the wheels, when you go for a service they swap the wheels around, rear to the front, front to the rear. If they are not performing a new balance when they rotate I would look for another place to service my vehicle. Never seen wheels being balanced during a service. Your place don't balance the rears anyhooooooooooo.... Well they should be re-balanced when rotating but in regards to my rears, they are balanced and I also get free rotate and balance every 10,000 km for the life of the tyres as well. I suggest you find a better place for yours. Just because it is done does not mean it is necessary though. Edited May 9, 2014 by Spoonman Link to comment Share on other sites More sharing options...
Jitar Posted May 9, 2014 Share Posted May 9, 2014 OK now that the tyre balance is sorted, Mmm, could have been wrong on that one.... 1 Link to comment Share on other sites More sharing options...
transam Posted May 9, 2014 Share Posted May 9, 2014 OK now that the tyre balance is sorted, Mmm, could have been wrong on that one.... But but but, we haven't sorted the pressures in them yet..... ................ Link to comment Share on other sites More sharing options...
Jitar Posted May 9, 2014 Share Posted May 9, 2014 OK now that the tyre balance is sorted, Mmm, could have been wrong on that one.... But but but, we haven't sorted the pressures in them yet..... ................ No worries, any pressure will do, especially at the rear.... Link to comment Share on other sites More sharing options...
Ace of Pop Posted May 9, 2014 Share Posted May 9, 2014 Wish id never Asked.. Link to comment Share on other sites More sharing options...
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