1990 rvf750 factory racer - Speedzilla Motorcycle Message Forums
 
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post #1 of 14 (permalink) Old 06-14-2011, 10:45 AM Thread Starter
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1990 rvf750 factory racer

very rare magazine find.beautiful shots of the 1990 RVF750 factory 8 hour machine
I saw Wayne Gardner ride this for a few laps back in 2007(little promo race with T Taira)
the power and response seemed as good as a modern factory bike

Enjoy!




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post #2 of 14 (permalink) Old 06-14-2011, 10:50 AM Thread Starter
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post #3 of 14 (permalink) Old 06-14-2011, 10:53 AM Thread Starter
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post #4 of 14 (permalink) Old 06-14-2011, 11:05 AM Thread Starter
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post #5 of 14 (permalink) Old 06-14-2011, 12:34 PM
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The RVF750 in its various versions was, in my opinion, one of the finest racers ever made.
Thanks for the pictures.

PS: are those HRC-stamped calipers an in-house design?

Shame on me, my heart is black.
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post #6 of 14 (permalink) Old 06-14-2011, 09:11 PM
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Nice

Great pics Simon, those perforated fairings look neat. Great piece of Honda history!! Hoovy

2005 RC51 Sato pipes, rear sets & Exhaust hangers,Penske Rear shock, Turn One air box & Snorkle, MR hugger, dash & front fender, Hotbodies undertail, proton flushmounts, carbon V cowl, Galfer lines, Scotts Filter, Heli Bars, PWR com III, Custom HID projector lights.
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post #7 of 14 (permalink) Old 06-14-2011, 11:11 PM
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Nice but Id rather have that RCB
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post #8 of 14 (permalink) Old 06-14-2011, 11:20 PM Thread Starter
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Quote:
Originally Posted by DesperateSP2 View Post
The RVF750 in its various versions was, in my opinion, one of the finest racers ever made.
Thanks for the pictures.

PS: are those HRC-stamped calipers an in-house design?
Was made by HRC I heard .Seen those on the same year NSR500
material was A7075,but brembo's were preferred by most so the change there


This is the 2 piece billeted swingarm for that bike!




Last edited by simonkobe; 06-14-2011 at 11:48 PM. Reason: added info
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post #9 of 14 (permalink) Old 06-15-2011, 12:43 AM
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Simon, which magazine(s) do you get these from?

'06 FZ1 - the teleport
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post #10 of 14 (permalink) Old 06-15-2011, 05:51 AM Thread Starter
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mainly bikers station,station,riders club and a cool new series called "racers"
Plus many others such as Clubman,Big machine,riding sport,road rider and some special issues that come about.

I have a lot more stuff that I plan on putting up when I get time etc.

These days since there are not many interesting new models there's kind of an 80's-90's renaissance here(ie magazines can't fill their issues with new stuff so they are raiding the Honda museum or their own archieves!)
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post #11 of 14 (permalink) Old 06-15-2011, 03:36 PM
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Amazing stuff here simon! Thanks again for always coming through with the goods.

In picture #7 they show one of the factory HRC gold clutch levers, do you have any idea what company produced these? It almost looks like a modified old school dirtbike lever design but fitting possibly an OEM clutch MC and made out of some unidentified gold material. I have always kept my eye out for these but have never came across anything like it so any insight would be greatly appreciated.

Thanks for the link on the pink tubing in the other thread as well! Ill be contacting you about that soon.

Stunna

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post #12 of 14 (permalink) Old 06-16-2011, 12:06 AM Thread Starter
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that will be for the works Nissin clutch master
probably very difficult to get maybe!

pretty funky old master cylinders!
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post #13 of 14 (permalink) Old 06-16-2011, 04:40 AM
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Quote:
Originally Posted by simonkobe View Post
very rare magazine find.beautiful shots of the 1990 RVF750 factory 8 hour machine I saw Wayne Gardner ride this for a few laps back in 2007(little promo race with T Taira) the power and response seemed as good as a modern factory bike

Enjoy!
Stunning scans as usual Simon... I saved them all...

My RVF notes...

Developments of the 91 NSR 500 focused around Doohan testing a number
of designs as HRC shifted their main push behind the new up and
comer... For some while Doohan had been asking engineers to replicate
the wide power band characteristic of the 90 RVF750 4 stroke endurance
bike, which he and Gardner had used to lead the previous summer's
Suzuka 8 Hours... HRC answer was the 2 stroke equivalent of the the 4
stroke Big Bang... technically speaking all four cylinders fried within 70
degrees to afford the tire more time to hook up...


Quote MCI

"Though it had another purpose throughout the 1980s, Honda's world
title-winning F1 have permitted the Camel Honda team to and Endurance
weapon, the RVF750, has run bikes that are more RVFthan RC30 in the
latterly been developed with a single objective - winning the Suzuka 8
Hours. Since Honda's approved achieving vital corporate goal has been
to import their works 500cc riders for a one-off four-stroke race,
it's not surprising that the RVF has been more and more modelled on
the NSR500 GP racer in chassis terms, while the V4 engine - based on
the RC30 for homologation purposes, but hyper-developed almost without
regard for cost - has come to resemble ever more closely a four-stroke
GP race motor.

This means that the ultimate RVF750 racers, the am/pm sponsored bike
which Eddie Lawson/Satoshi Tsujimoto took to second place in the '93
Suzuka race, and its companion OKI-backed bike ridden to fourth place
by Mick Doohan and Darryl Beattie - are the trickest, costliest, most
potent and most effective round-piston four-stroke road racers ever
built. To contest the eight-hour GP race that is Suzuka, Honda poured
decades of four stroke tuning experience into extracting maximum
performance from the 70 x 48.6mm engine, without sacrificing
reliability. This meant using the motorcycle that Beattie and Wayne
Gardner took to victory in '92, with some extra refinements to Honda's
pet 'throttle linear throttle concept also yielding a further 5bhp.
This was achieved through painstaking work to reduce friction and
reciprocating weight to the minimum, with extensive use of titanium
and ceramic coated components. Much of this technology - also crucial
in saving weight, allowing the RVF to scale an incredible 140kg
half-dry without lights - was directly transferred to the RC45. So was
the RVF's fairing design, incorporating carbon-fibre air ducts below
the screen to feed the airbox around the carbs, in which the underside
of the fuel tank plays a critical part. Thanks to the restrictions on
bodywork shape imposed by Superbike rules. Honda could do what the
Rumi team wanted to but couldn't, with the result that the
ultra-trick, ultra-expensive 40mm flatslide Keihin carbs breathe from
a pressurised airbox as is now the norm in top-level racebikes of any
type. The right rear Keihin has a sensor which monitors throttle
position for the Programmed Ignition Control (PIC) system. This
employs a microprocessor to monitor this sensor and one in the tacho
to vary the digital ignition between anyone of the five curves, and is
a key element in retaining the smooth power delivery and flat torque
curve the Y4 motor has always been famous for, in spite of the radical
valve timing now required to obtain 'over 150bhp' (believed to be
157bhp at the gearbox) at 14,000rpm from a nominally production-based
750cc engine. One can only speculate about the useof titanium, but for
sure the conrods, valves, seats, retainers and springs would be made
from it, while the camshafts have two-gear cam drive to reduce weight
and friction. Yet, because of the standard-engine-castings Fl rule,
all this trickery is concealed from view: externally, the RVF motor
looks innocuously similar to the RC30 engine. But it isn't. Nor is the
chassis - but this time you can tell, not only by looking at it, but
just by sitting on the bike. The motor is fitted to a meaty,
fabricated alloy frame using triple box extrusions for the twin spars
and essentially identical to the '92 race-winning frame. The spars are
thicker and deeper than on the RC30,and the engine is fitted much
further forward. To help deliver the GP feeling that their riders
wanted, Honda produced steering geometry befitting an NSR500
four-stroke clone, with that steep 22 head angle, a 55/45 frontal
weight bias, a 1,385mm wheelbase and 98mm of trail that was lengthened
via the offsets to give Eddie Lawson the extra high-speed stability
round fast turns he's always preferred. Honda's dynasty of central
cam-drive V4 four-strokes reached its ultimate technical expression
with the '93 RVF.Too bad it didn't achieve its objective with oil left
by another bike sending Lawson into the sand and Kawasaki into victory
lane. But as the rolling testbed for the RC45, it had more than served
its purpose."

Mick on the RVF...

Larry L
94 RC45 #2
90 RC30 #44 sold
Have a wheelie NICE day...
Lean & Mean it in every corner of your life...
If it wasn't for us the fast lane would rust...
V4'S are music to the seat of my pants...
1952 De Havilland Chipmunk...
Yank and bank your brains loose...

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post #14 of 14 (permalink) Old 06-21-2011, 05:03 PM
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THX Simon! I love your posts! I really love the Honda RC30,RC45,RC51,CBR1000RR with al the trick parts by HRC,Moriwaki,TSR etc etc... Do you have some pictures of tricked out CBR954RR i used to have one and i really loved the bike thx!
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