tapkutez1
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| posted on 16/7/10 at 10:22 PM |
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some stupid questions
Hi, is there people who have cbr900rr fireblade engines?
I made my first ride and noticed that in 6 gear at 60miles/h my tacho shows about 6000 rpm, is that normal? I know it depends on diff and its ratio, I
think mine is about 3.6.
So its interesting what about your cars? but if 6000 rpm at 60 miles/h so will my top speed reach 100miles/h? Seems a little bit small........
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mangogrooveworkshop
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| posted on 16/7/10 at 10:29 PM |
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Not a stupid question
You will need a 3.38 diff to sort this problem out...
Ive got one for £199.00 plus 8 quid postage for sale.
Some might say you need a 3.14 but the lower power of the blade wont work well with that ratio.
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ReMan
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| posted on 16/7/10 at 10:30 PM |
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That is exacyly the same as mine, so top speed is approx 110
How much fasterer do you want to go?
These cars are at their best 30-70 mph
[Edited on 16/7/10 by ReMan]
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tapkutez1
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| posted on 16/7/10 at 11:01 PM |
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:)
I dont need big top speed, I better prefer good acceleration, just....its my first rides and I noticed that I am riding easily but rpm didnt drop less
than 4000....
I have sc28 engine, maybe someone knows real 0-60 times? as I read it seems to be about 4 seconds, but is it true?
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adithorp
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| posted on 17/7/10 at 06:48 AM |
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It'll take a while top get used to the engine revs, but that sounds normal.
0-60 times will be in the 4-5 sec range but to do 4sec you'd be on a flyer. Getting off the line quick isn't the easiest thing to do.
It's the 30-60 where the BEC comes into it's own.
Where abouts are you? Put your (rough) location into your profile.
adrian
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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ReMan
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| posted on 17/7/10 at 06:54 AM |
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quote:
Originally posted by tapkutez1
I dont need big top speed, I better prefer good acceleration, just....its my first rides and I noticed that I am riding easily but rpm didnt drop less
than 4000....
I have sc28 engine, maybe someone knows real 0-60 times? as I read it seems to be about 4 seconds, but is it true?
For accelleration leave it as it is
In normal driving you need at least 3500 at all times under load to not labour then engine
0-60 4.00 to 5.00 seconds depends very much on driver weight (4.8 for me 17st)
Enjoy
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mark chandler
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| posted on 17/7/10 at 07:28 AM |
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I had a 3.65 diff in mine, it could just hit 12,500 in top so was geared correctly, worked well on short tracks.
I now have a 3.14 which does drop the revs down a fair bit and makes first gear useful, it does feel much nicer on those long straights not to be at
the limit!
6000rpm = 60mph sounds right to me.
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