Post by: ashpeat on January 26, 2013, 04:20:25 PM
I find i probably change gear way to early cos im conscious of blowing the engine (if thts possible), just after its been in the powerband for a few seconds, i know this is not right as when you listen to pros riding two strokes they maintain that really high revving sound, and you cant even really tell when they have changed gear, its like a continious noise.
So at what point do you all change gear, ive heard of people saying a technically sound engine can rev up to 20,000 rpm. what are your thoughts?
Post by: _X_ on January 26, 2013, 04:26:42 PM
Post by: ashpeat on January 26, 2013, 04:31:00 PM
you shift just before it falls off the pipe, if it keeps pulling to your braking point no worries. but you should feel when it runs itself out power, it will just stop pulling and flatten out(just make noise).
ok so what your saying is don't worry about it, as long as it theres no risk of damaging it i think thats the best option as it is limiting my riding, im gonna just strangle it frm now on!
Post by: _X_ on January 26, 2013, 05:38:40 PM
Post by: SachsGS on January 26, 2013, 08:18:27 PM
Post by: Stusmoke on January 26, 2013, 08:48:47 PM
I would suggest that you find a nice flat long patch of dirt and practise keeping it in the sweet spot when its wide open. Its harder than it sounds, even in a straight line on flat ground.
Good luck, don't stress. IT takes hours of practise for anyone.
Post by: msmola2002 on January 26, 2013, 10:10:33 PM
Post by: motoman356 on January 26, 2013, 11:24:04 PM
Post by: 2T Institute on January 26, 2013, 11:43:35 PM
Ok so i was wondering exactly how far can you rev your 2 stroke, i know they dont have rev limiters as such, to what point can you keep the throttle on full before you need to change up a gear?
I find i probably change gear way to early cos im conscious of blowing the engine (if thts possible), just after its been in the powerband for a few seconds, i know this is not right as when you listen to pros riding two strokes they maintain that really high revving sound, and you cant even really tell when they have changed gear, its like a continious noise.
So at what point do you all change gear, ive heard of people saying a technically sound engine can rev up to 20,000 rpm. what are your thoughts?
36,000 rpm is no problems. all depends on the bore and stroke of the engine to get your rpm ceiling
https://www.youtube.com/watch?v=5aBCQGq5Al4
Post by: Stusmoke on January 26, 2013, 11:57:11 PM
Ok so i was wondering exactly how far can you rev your 2 stroke, i know they dont have rev limiters as such, to what point can you keep the throttle on full before you need to change up a gear?
I find i probably change gear way to early cos im conscious of blowing the engine (if thts possible), just after its been in the powerband for a few seconds, i know this is not right as when you listen to pros riding two strokes they maintain that really high revving sound, and you cant even really tell when they have changed gear, its like a continious noise.
So at what point do you all change gear, ive heard of people saying a technically sound engine can rev up to 20,000 rpm. what are your thoughts?
36,000 rpm is no problems. all depends on the bore and stroke of the engine to get your rpm ceiling
https://www.youtube.com/watch?v=5aBCQGq5Al4
Holy crap... That sounded like a big arse mosquito. thats a high revving engine alright...
And to ashpeat, alot of people shift when they're in mid air and hold a gear on the ground. If they have to shift on the ground they shift with no clutch while wide open. Hence the continuous noise.
Post by: TMKIWI on January 27, 2013, 07:53:33 AM
125's 12k
250's 9k
500's 7k
MX bikes that is. Road racers will rev more.
Hold it open till just before it falls flat.
Post by: Stusmoke on January 27, 2013, 08:00:36 AM
85's rev to 14k
125's 12k
250's 9k
500's 7k
MX bikes that is. Road racers will rev more.
Hold it open till just before it falls flat.
Are you talking about redlines or when the power falls flat?
Post by: TMKIWI on January 27, 2013, 08:05:12 AM
Post by: shanes on January 27, 2013, 10:21:35 AM
85's rev to 14k
125's 12k
250's 9k
500's 7k
MX bikes that is. Road racers will rev more.
Hold it open till just before it falls flat.
Sounds about right
My TZ 250 GP bike reved to about 13,000
The NSR 500 I tested stopped making power about 11,000
Post by: metal_miracle on January 27, 2013, 03:44:36 PM
and that the cr125 prototype dual was max 20000
Post by: 2T Institute on January 27, 2013, 09:19:23 PM
Post by: Stusmoke on January 27, 2013, 10:19:24 PM
Ok so i was wondering exactly how far can you rev your 2 stroke, i know they dont have rev limiters as such, to what point can you keep the throttle on full before you need to change up a gear?
I find i probably change gear way to early cos im conscious of blowing the engine (if thts possible), just after its been in the powerband for a few seconds, i know this is not right as when you listen to pros riding two strokes they maintain that really high revving sound, and you cant even really tell when they have changed gear, its like a continious noise.
So at what point do you all change gear, ive heard of people saying a technically sound engine can rev up to 20,000 rpm. what are your thoughts?
36,000 rpm is no problems. all depends on the bore and stroke of the engine to get your rpm ceiling
https://www.youtube.com/watch?v=5aBCQGq5Al4
This vid still gets the trophy
