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Turbo cafe from the UK

7.7K views 12 replies 7 participants last post by  Big Fluff  
#1 ·
Hi guys, greetings from the UK (which is usually wet and miserable) :)

Just been having a look through the forum, there sure are some masterpieces out there... love them all!
I've had bikes for 35 years now, mostly Jap stuff but a lot of special framed bikes too including Harris, Moto-Martin and Rickman.
Just finished building this Z1000R Eddie Lawson Replica. It's been such a joy building it, but I couldn't get on with it so I sold it after just 250 miles.
I fitted a GPz1100B1 engine in it with ZX1100 cams, carb conversion, ZR front end and wheels, loads of one-off hand made parts and nicely finished with a Kerker exhaust.
The white dials I made myself as I run a business making them since 1991.






Immediately after selling it I bought a Honda VFR500 to restore over the coming winter.

My other bikes include this brilliant Kawasaki ZRX1100R,


and my beloved 1976 S+S Performance - Silver Saxon. This utter beast of a creation is actually the prototype of a standard production bike ! No shit !
There was only a total of 9 bikes built before the company went into receivership, 1 x prototype and 8 x production bikes.
They were built using a full rolling chassis from the Rickman brothers (another UK frame manufacturer), ran Ronal wheels, Lockheed brakes and housed a Kawasaki Z1 engine, bored to 960cc and turbocharged.
All bikes had extensive cylinder head work undertaken by a genius called Russell Savory, with enlarged exhaust valves and trick porting.
What I ended up with was the original prototype bike, which after being used for extensive research was fitted with an uprated A-flow race only turbine wheel, which gives well over 200bhp. The bike was then sold to the British heavy metal rock band “Saxon” who used it as a stage prop, riding on and off the stage at each concert for the “Strong Arm Of The Law” album world tour. After that it 1980 it was put into storage and simply left.
I found it in 2006, still unregistered and only 1100 miles on the clock! After a 1½ year restoration, it’s now been used on a very regular basis, though it’s now grown to 1200cc.
The bike came with both short tank (dual seat) and long tank (single seat) bodywork which was very lucky.
Sure I’ve had to adapt some later technical additions, but all done in a way that carries that 70’s look and feel, so the bike is still “stock” but with later ignition system etc.
This one's for keeps..... definitely !:D

Regards, Will




 

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#2 ·
Fooking Hell...you own a SILVER SAXON!!!!! and it was the Saxon tour bike!!!!. I have been wondering about that bike since the classic bike article from years back. Welcome. Looks like you know what you are doing with these awesome Zeds.
 
#3 ·
Yep...holy shit!!! Welcome!
 
#6 · (Edited)
Christ, that was 6 years ago :eek:

I didn't really know what I had at the time....Only as I uncovered more history and met the ex S+S company director Mike Cazalet from that time did I know the importance of it, and thus should return it to 100% standard.
What the hell was I thinking when I fitted that ugly bug-eyed fairing :confused:

Here's a few pics of the Mike Cazalet, meeting up with the "old girl" as he fondly remembers it by, some 30 years later!
These pics were taken by Classic Bike magazine, for the "Classic Bike Of The Year" award. Mike actually had tears in his eyes when he saw it, and it was only then did he tell me that what I actually had was the prototype from 1976. Faarrk!

Since these pics were taken, the paintwork has been done again (with the correct graphics) and the engine has been blown up twice (now out to 1198cc).



 
#7 ·
there is nothing about that bike that isn't awesome. One of the things I wondered about was how did the band treat the bike? Did they ride it through their hotel like John Bonham did at the Riot Hyatt, or did it just sit next to the amps and only racked mileage during load in and load out? Considering the debauchery stories the motorcycle guy in the village people told a buddy of mine about his bike I would like to think there are some deeply embeded sex stains in the fiberglass of the Saxon, but then again if it lived like a heavy metal superstar in the 80's it might have overdosed years ago and not have survived for you to own it.
 
#9 ·
there is nothing about that bike that isn't awesome. One of the things I wondered about was how did the band treat the bike? Did they ride it through their hotel like John Bonham did at the Riot Hyatt, or did it just sit next to the amps and only racked mileage during load in and load out?
You're bang on there... the only mileage that bike racked up was around 950 miles through R&D in the S+S years, the remaining 150 miles being covered by Steve "Dobby" Dawson (Saxon bass player) riding it on & off the stages and general arsing about on it.
This was the genuine mileage when I found it in 2006, still unregistered too. Note the authentic and rusty key fob (which I still have).



And here's a pic of lead singer Biff Byford (left) and bassist Dobby Dawson (right) at the S+S Performance stand after they were blew away with the bike at the 1979 Earls Court bike show.
They loved the bike so much they bought it there and then, Biff even sporting an S+S Silver Saxon T-shirt after getting some regalia thrown in for good measure.

 
#11 ·
To be honest I had passed this thread up a couple of times thinking it was another kid with a cm200 and an HX35 holset trying to make the two work together.

Glad I finally checked it out. That bike is beyond cool. And the history makes it pretty much unobtanium plated with unobtanium. Just awesome!
 
#13 ·
The turbo set-up started as a standard ATP (American Turbo Pak) kit, which utilized the Rajay 370 F40 turbo. These Rajay 370's were designed initially for Cessna aircraft.

On the compressor side; the compressor housing was ported by Russell Savory (of S+S) and fitted with an F-flow compressor wheel.
On the turbine side; a race only A-flow turbine impeller was fitted, these are only ever for use on "Funny" (drag) bike set-ups.

This pic shows the A-flow impeller fitted in the turbo, compared to the tamer F-flow impeller in my hand. Remember that the gas pressure comes from the REVERSE side!


I usually run around 11 psi, but with the A-flow turbine impeller, this equates to about 20 psi on a Z1R-TC (which utilized a F-flow turbine impeller.

A short while ago, the wastegate failed to open resulting in pushing 65 lbs into the engine, breaking all 4 pistons!


The wastegate houses an 80 lb spring (arrow), which is really too much as I have recently found out. In addition, I found that the 1/4" "vent" ball bearing (item 1) was also seized solid in the bottom of the wastegate.
I have now fitted a 40 lb spring (item 3) and completely overhauled the wastegate so hopefully this won't happen again!


When overboost (dumping) happens, the ball bearing (arrow) should shoot up and allow the air under the wastegate piston to vent, then fall and seal the airway, so no air is sucked in under throttle off (vacuum) conditions.


I have also adjusted the wastegate dump to around 6 lb's of boost, which still equates to around 10 psi on a standard ATP turbo set-up.