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BiKenG

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BiKenG last won the day on December 6 2017

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About BiKenG

  • Rank
    Moto Grand Prix Racer
  • Birthday 08/26/1952

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  • Location
    Surrey, UK
  • In My Garage:
    VFR1200SP-eVo4
    CBR1000FFX
    VTR1000-eVo2
    VFR800R
    RCBX1000
    CRF450X
    Montesa 4RT
    Triumph ThruxtonR

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  1. Not a bike sold here in the UK (I don't think) so I'm not familiar with it, but it would appear to use the exact same hub as the VFR750, but it also has the single nut fixing. Shame that Honda decided to use a different drive pin PCD (deliberate I wonder?), but great info. Thanks. Just need to locate a couple here in the UK though. If anyone over in the US has one spare and would be prepared to organise shipping, please let me know.
  2. Old thread, but had to correct this. An NC30 or NC35 hub is indeed the same diameter as for the RC36 but the NC hubs are 10mm narrower. If anyone knows how to make that work, please let me know. I've even contemplated cutting the 400 hub and inserting a spacing ring and welding it all back together. Otherwise, anyone got a spare RC30 hub and axle?
  3. I just had a look at Beasley Composites and they can supply RC45 parts suitable for road use with holes for the lights. However I'm also looking for the same for the RC30, but they only offer race versions for that. Either way, no prices so I've no idea if they're worth considering.
  4. My time frame is similarly 'extended' as I have many other products concurrently underway. Have fun with using ethanol. You do understand that more power does does not necessarily mean better acceleration, that being a function of torque. Increase the max revs of any engine means a higher max power figure, but that does not necessarily mean more torque. It may be the same or even be reduced. Power enables your top speed, but it's torque that gets you there. I'm not bothered about the 'power' of the VFR as that's not what I want it for. If I do feel the need, I have much quicker bikes to play on, although trying not to. 😀 I've not really thought about painting/decals etc. The RC45 uses an interesting idea of different fairing pieces having a different base colour, but then decals that spread across joins which is the simplest way to achieve that colour pattern. Whatever you do discover about decals etc, please report back here and I'll do the same. Hopefully we can help each other out on that.
  5. I haven't checked on Beasley Composites yet. I was going to do that yesterday, but forgot. I'm going to look today, but I suspect probably not ideal for me as I'm in the UK and I somehow doubt they are. Why do you want to use ethanol? Unless I'm very much mistaken, it's got a lower calorific value than regular petrol. Do you mean methanol? Personally I wouldn't. A small overbore and some suitable pistons a camshafts a la Mohawk would make a nice usable power output. Much as I cannot shake off the long held desire for more power, it makes no sense whatsoever with the limitations imposed on us by the authorities (over here anyway). 200hp and 200mph bikes is simply insane in this day and age and realistically totally unusable to anywhere near their max. I don't care how good a rider anyone thinks they are. 100mph in the UK and lose your license if caught. 120mph means possibly go to jail and I REALLY don't want to do that. So for me these days the emphasis is on interesting bikes to look at and comfortable ones to ride. 😀 Having said that, 120 rwhp from a VFR is a nice output. I've ridden a fair bit with Mohawk and his bike is the fastest VFR800 I've ever come across. Some way to go though until it can match my VFR1200 eVo4 😁
  6. Resurrecting this thread, but I actually looked into doing this and although yes you could cut the S/A mount off the back of the RC46 engine, the front mounts are way off. You would have the cut the original front mounts off the frame (i.e. those 2 lower side rails on the RC36), fabricate new mounts and weld them onto the frame. All in all I decided it wasn't worth it as the 4th Gen frame is not actually very similar to the RC45 frame anyway. Once the bodywork is on it wouldn't be too obvious, but the front engine mounts for the RC45 are more like the RVT1000, with long arms that drop down from the main frame rails which are themselves much deeper on the RC45. Presumably to keep it really stiff. I have decided to use a 5th Gen 800 as the starting point. Although as standard the frame looks quite different around the Swing/Arm area, by the time you fit a VTEC lower frame (with footrest mounts etc), you could then fit a simple plate between the 2 and it would at first glance look like the solid frame as used on the 4th Gen and RC45. The front engine mounts are then more similar (but hidden so no big deal anyway) and most importantly, it is then basically an RC45 engine with cam drive on the end rather than in the middle and of course, fuel injection. With some cams as designed by Mohawk (copying the RC45 profiles), it would make slightly more power than an actual standard RC45. That's what I'm starting with, anyway. Fortunately I have an actual RC45 to copy from as needed. Currently I'm looking into sources of plastics, both for this and an RC30 replica that WILL be based on a 4th Gen. 😀
  7. No doubt this has since been sorted, but any S/A without linkage is likely to be problematic trying to fit it into the RC36 chassis. One thing about those, the RC36.1 (3rd Gen) has a 243mm width (at the front) S/A, whereas the RC36.2 (4th Gen) is only 235mm. Both those are quite narrow so finding anything suitable to fit without any machining will be tricky. The BlackBird has a nice simple twin spar S/A, but it's 248mm. The CBR900RRW/X is 243 at the front, but although correct for the RC36.1, still a little too wide for the RC36.2 (and anyway has additional bracing which is not like the RC45 twin spar S/As. It may well be that some machining is the only option.
  8. Resurrecting this as I'm starting a similar project, but based on a VFR800. I'd be interested to know where the tank cover came from and also the rest of the bodywork. I rather hoped RC45 replica plastics could be sourced from China but I've not found anyone offering these (due to the low numbers of RC45s produced I guess). Any suggestions about finding suitable plastics would be gratefully received.
  9. Thread getting a bit dusty so I thought I'd try and resurrect it as I am intended to attempt the exact same conversion. Could Pachinko update us on how it all went? What tank did he use in the end etc. and from where did he obtain the replica bodywork? And as requested previously - pictures?
  10. We could calculate that. If someone was prepared to enter the power figures (read from the dyno graph) into a spreadsheet that could then be used to calculate and show the torque curve. Further, if other data from other dyno runs with different exhausts was also entered, we could build up a set of torque/power stats that would provide the perfect comparison chart. The only issue with that would be differing parameters like actual bike and dyno used and atmospheric conditions etc. However, it WOULD be better than nothing.
  11. I agree with both Seb and Mohawk. The Lextek looks like a reasonable system at a good price and depending on your individual requirements, may indeed be the ideal choice. But... I would have liked to see a back to back comparison with the same bike fitted with the standard system. In isolation, that dyno chart is let's say, not as useful as it would be if we had the standard one to compare. Maybe that bike on that dyno just produces higher figures and the standard system might produce higher/better results, showing the Lextek as perhaps significantly inferior. I'm not suggesting it is, but without the comparison, let's be honest, we don't actually know. I guess we could try looking at another chart of a standard bike and see how that compares. Not ideal, but probably better than nothing at all. Anyone got one to hand?
  12. Have a quick look on ebay here in the Sates and these showed up.

     

    https://www.ebay.com/itm/1999-HONDA-CBR900RR-CBR-900RR-FRONT-END-FORKS-TRIPLE-TREE-CLAMP-FORK-TUBES/292648320766?fits=Model%3ACBR900RR&hash=item442332fefe:g:DDUAAOSw65FbUiEO:rk:42:pf:0#shpCntId

     

    Not the prettiest but looks serviceable. I would contact him to verify what he means by some damage, hopefully its the pitting on the top. He says he ships to many countries also. Regards, Michael

    1. race549

      race549

      I sent you a PM with everything I have.

  13. Just to clarify this, or indeed correct it, although the calliper fitment is the same on all the above, they are not all the same. The CBR900RRW/X and the SP-1 (early RC51) all have 32 and 34mm pistons. The later RC51 (SP-2) and 954 'Blade use 30 and 32 pistons (same as later radial callipers) and the CBR929 (CBR900RRY/1) has 30 and 34 pistons. The differences are not huge, but they are different.
  14. Yes, they would not be powered and simply generate an electromagnetic pulse signal over the 2 wires. 2 wire Hall effect sensors for ABS are a touch more complicated.
  15. Well electrics are no problem and I have designed some simple electronic circuits, but the 2 wire Wheel Speed Sensors defeat me. 😕
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