And there was no 1992 1000F in the U.S. either.

 

Bad luck, 1992 are the fastest ones

 

Hmm i believed that the -87-88 was the fastest one?

 

Yes your right, they where definitly competetive during the first years. My old CBR is although fast enough to envy many sport bike riders. Maybe, just maybe, I'll take it to GellerĂĄsen this sunday where Bike magazine subscribes are allowed to use the track. Havn't decided finally yet, but with the suspension retuned today, which was a great improvement and took away the understeer at corner entrance, I might change plans and take the thrusty old Honda. It's no competition anyway, just for pleasure (I almost beleived that myself...)

 

No Blackbird in U.S. after 2003.

 

Mine was the 87-88 type, but I thought the title stated 89 - doesn't matter it was the original hurricane with the 140 rear tire.

thanks, Pat

 

Hehe.. I got a friend with an YZFR1000 Thunderace -98 and he has problem trying to outrun me in the topspeed.. and that is strange I can´t get over 265km/h.



Ok... strange behaving by Honda I think.
http://www.hondamc.com/homc/template...l____2783.aspx

 

"Hehe.. I got a friend with an YZFR1000 Thunderace -98 and he has problem trying to outrun me in the topspeed.. and that is strange I can´t get over 265km/h."


There is almost always a faster gear to activate....BTW, the old CBR should indicate about 280 km/h top speed, that would be a real speed at 255 km/h according to my GPS. The missing 15 km/h on your bike could be caused by a slipping clutch.

 

Yeaa.. the clutch .. he is doing 265km/h@10500rpm .. slipping clutch then?

 

If the reading is 265@10500 on the gauges it could be that the clutchs slips but I can not say for sure, some work has to be done first. The wind resistance is very high at those speeds, so a weak clutch could be slipping. My bike shows 280 km/h on the speedo when it runs 255 km/h according to GPS. It would go a few km's faster since it was still increasing speed slowly, but I had to slow down due to bumps on the road.

To be able to tell more for sure about your bike, the following is needed:

- Speed reading calibrated by GPS, or if you can estimate the misreading some other way.
- Be sure that the rpm gauge reads correct. Even cheap digital engine diagnose instruments, like Biltema stuff, often has a built in rpm meter which normally is quite accurate since it just count pulses and not converts from pulses to a analogue reading like the stock meter. I beleive that the CBR rpm gauge reading is fairly OK, so you can probably skip the calibration if you have the same impression about your rpm gauge. To be real sure, you need to calibrate.
- The gearing, does it has stock 17/43 gearing (I belive that is was it should be on your bike) or something else?
- The rear tyre dimension and profile

After getting the data above, you can calculate what the top speed with your gearing and tyres should be at 10500 rpm and compare with the calibrated achieved top speed and see if there was a clutch slip. Trips from Australia posted a very useful Excel based gear/speed calculator in another thread earlier. See https://cbrforum.com/m_56038/tm.htm