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My 1960's Appendix K Mini Cooper S and a bit of history.

Brett

New Member
Well after an utterly fabulous weekend walking around the pits of Silverstone Classic and plenty of nudges by my brother while I was there, I am un earthing my Mk1 Mini after 7 years of dry storage. The idea is to rebuild it to Appendix K regs. This means i will be able to compete in the FIA pre "66 Classic Touring Car championship.
Unfortunately I am unable to compete the car in its current form. This is because in the early 70's up to around 1974, the car was developed to a point where it was so extreme many classes would simply not allow it to compete. In its final days, it was competed in a Special Saloon class where heavily developed cars could mix it with one another. This was against famous names such as Steve Soper, Ray Calcutt and others.
The car sported a 970cc Cooper S engine which used a Formular Junior block, an ultra expensive Arden 8 port cylinder head, 9 post rocker gear, Tecalemit-Jackson injection system, ultra lightweight flywheel with titanium retainer, F1 suspension components and much more. It was one of the most heavily developed sub 1000cc Mini's ever. It revved to 12,000rpm and could make 120+ hp. This was all seen in Car and Car Conversions in 1990. One of its final races was the "Fastest Mini in the World" race in 2000.
Even today, there aren't really any circuit championships it can compete successfully in. For that reason I'll be building it up to a similar spec it started out with way back in 1964 when it began racing by a chap called Ryan Lee. At this point the car was very basic but still had a very sought after 970s engine just in a much more standard trim. Luckily for me, the FIA cater for genuine cars of this age and its called Appendix K. These cars must be prepared to a standard that are as close to the period race cars and works cars as possible. This means any fancy parts or mods that weren't fitted before 1966 to this make of car will not be legal. Everything must be perfect. The only difference being an up to date seat, harness and roll cage with HANS device compatability. To get a typical Mk1 mini to this standard costs alot of money. Fortunately, over the years, I have gathered many rare period parts for the car so it will be minimal for me. Although it won't be cheap getting the car to the grid, the value of the car will soar. The value of Appendix K Minis range from £30-50,000.

Plans are to restore the body back to oem spec using Genuine Heritage parts. Although the shell is immaculate, it has a one piece GRP flip front, tubed rear arches and wide hand made alloy arch extensions, none of which is legal. The car is fitted with a full rollcage but it will need changing for the FIA approved item. All pretty easy stuff. The wheels are currently 8x10" splits rims. They look great but again, not legal. They will be changed for 4.5x10 period rosepetal alloys. Brakes are currently 4 piston callipers and vented. These will be changed for 2 piston Cooper S callipers and disks. The engine is a tough one. It competed with a 970s engine since time began so its only right I carry this tradition on. The problem is it won't be very competitive against a field of 1275 Cooper S' using the standard 5 port mini head design. This may mean I build up an easier to come by 1275 unit. Although it won't be as strong as the front running Mini's, it will still offer enough go to mix it with the American machinery.

I'll post pictures once the car is on my drive and being put together
 
Good for you Brett!
It's taken me a long time to realise that sometimes the 'win' is about being involved with the scene and not necessarily about crossing the finish line first.
 
You are literally carrying out one of my dreams there. I've got a much later mini that I use in sprints and hillclimbs, and even though it's a great car, it doesn't quite carry the same character or kudos of a proper Mk1 historic race car. I'd love to see some photos of it as it comes together.

As an aside, if you find some of your old bits become surplus to requirements as you revert to period spec, please feel free to give me a shout, i'm always on the lookout for good quality parts.
 
Hmmmm....i have a few bits and bobs lol. Car currently sits on a set of 10" MB splitrims which need to go eventually, original Ripspeed hi-los, couple of forged EN40b crankshafts, 37.5x30 race head, turbochargers, mg metro turbo bottom end. The rest i reckon will be kept as a spares package. What do you run then? Many people have told me to take it sprinting/hill climbing so i can keep it kind of grp 5 spec but id rather keep it a circuit car.
 
At the moment it's not super fancy to be honest, but it's stripped out with plastic windows, carbon doors, bonnet, and boot. It's got 4 pots on the front with the KAD adjustable pedal box, it's on 10" mamba wheels with A032R tyres. The front subframe has been stiffened a little and a little of the dead weight taken out of it. Engine wise I've currently got a 5-port 1380 built by MED (the valves are a bit smaller than yours, think the inlet is only 36mm) with a DCOE 45 and a straight cut synchro box which has a bespoke drop gear set designed and made by myself. I have acquired a KAD 16 valve head which I plan to get built on to an engine over the winter, and a proper EN40B crank would probably be just the ticket! Elsewhere it's got adjustable suspension (high-lows, bottom arms, tie-rods and dampers), a single bucket seat and a a little bespoke aluminium fuel tank.

I'm pretty new to the whole mini scene really (and the Clio V6 for that matter), but I bought the car about three years ago. It's only a mk3 but for some reason the previous owner had gone to great lengths to restore the shell. I sort of bought it on a whim, then fell in love with it, and after my dad retired, we decided to strip it back, re-spray it and subsequently develop it a bit. I'll try and get a couple of photos up if I can.
 
It's by no means perfect but it's one of those cars that is always a work in progress. Lets see if this works..

IMG_1284_zpsbb406971.jpg.


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IMG_0931_zpsafb4a95b.jpg
 
Oh well that didn't work too well, but it turns out you can see some photos of it if you click the link... and some of the vee and M3 for that matter. I'm sure no-one can tell that I don't use the forum that much!
 
16v KAD is about as special and as expensive as it gets. Last motor I built for mine was a 1460 16v using a BMW K1200rs head and that was a world of difference compared to any stg5 5 port. KAD is a small bit better still. Would love to go to town again on a fancy engine but 1. It won't be legal and 2. I don't fancy spending £15,000+ on another A seires engine.
 
Did you do the BMW head yourself or did you use the bits from specialist components? I quite fancied that as an option. To be honest i'm still amazed by how well a sorted 5-port goes, but i've seen a few KAD engined cars and they are something else. Good luck with your build, i'll be following with great interest.
 
I did it before Specialist Components started offering it as a package. I used a company called Morspeed who were the first to do it in this country. Although i couldnt fault what i got off them, there time scale were terrible and they gave me the run around more than once. As im sure you can appreciate, spending many thousands of pounds on an engine block and head alone was a worry but when they werent delivering it soon turned to anger. Needless to say, they soon went bust.
Once i had the head and block worked over, it ended up 1460cc, custom low comp JE pistons, Arrow rods, 86mm one off forged crank, 4 bolt center mains, fully worked 1200rs head, gt28 turbo, gsxr throttle bodies, custom twin plate pre verto clutch, 1:1 sc drop gears, Quaife sc dog box, plated sailsbury diff and a load of other bits.
 
Well there's no turning back now. After a chat to a guy who runs the HSCC at the NEC this weekend and a few emails else where the cars restoration will be very in depth with visits from officials to make sure what im doing is correct for 1962-64. I'm actually really excited in having a real bit of british motoring nostalgia in the garage. Doesn't make me feel quite so bad about the vee losing a little originality now.
Problem now is how to make it competitive. Pretty much all the Minis that compete against the Mustangs, Cortinas etc ets are 1275 Cooper S's (1293cc bored out engines) and there is a huge field of them. To be in the mid to top field ill need to spend at least £10k on a Swiftune engine as every lb/ft and hp helps. Although the engines are 99% legal many of the parts in my opinion aren't true to early 60's tuning. The materials used are bang up to date and it really is a case of 50 years of development to give perfection. Although I could build a decent speced 1275 motor it just couldn't compete with these guys. For that reason I'm swinging towards the sub 1150cc class where there's a smaller field and the competition will be the likes of Fiat Abarths. This means I have to source an extremely rare crankshaft, either being a 970S or 1071S. Head line power figures will definatly be less but I am allowed a slight weight advantage which could be good in a car weighing just over half a ton.
The end result will be the ultimate in OEM+ classic car! :race:
 
Sounds great Brett, the long wait to chat to someone on Sunday has paid off!

Better get your finger out then! I want first dibs for a lap around Silverstone in it with you! ;)
 
Brilliant Brett!! :bow: :bow:

have you thought of a Bill Needham of Coldwell engineering 8 porter with 4 Amals, he was fitting these early/mid 60s before the Arden developed 8 porter, these tended to end up in hill climbing 999cc 'S' Terrapin Mins and the like but did get onto quite a few circuit racers. Last time I saw Bill in the 80s he had a few unmachined castings lying around and the patterns in his workshop on Sandygate Road in Sheffield, wonder where they are now??
 
rustedandrotten":21xrihe7 said:
Brilliant Brett!! :bow: :bow:

have you thought of a Bill Needham of Coldwell engineering 8 porter with 4 Amals, he was fitting these early/mid 60s before the Arden developed 8 porter, these tended to end up in hill climbing 999cc 'S' Terrapin Mins and the like but did get onto quite a few circuit racers. Last time I saw Bill in the 80s he had a few unmachined castings lying around and the patterns in his workshop on Sandygate Road in Sheffield, wonder where they are now??

http://mk1-performance-conversions.co.u ... eering.htm
Just answered my own question, Nick Rogers probably has them now, Albert Road in Heeley, Sheffield, got his private numbers if you want to talk to him, he also has a stack of OE Mk 1 Mini panels if you want to get the shell back to appendix k
 
That's a real oldskool setup that! I've only ever seen 1 in the flesh and it may have been on that green car. His car probably competed against mine at some point. As much as I'd love to go back down the 8 port route it's not legal in App K. The Coldwell heads were never used in production or on works cars so the only class I could compete with a crossflow is grp 5 which the car is currently. If I was to compete in the grp 5 class with the HSCC it would be with an Arden head and TJ injection if I could find it.
 
Fantastic Brett!

Look forward to it. I'll be next in line to have a passenger ride in it, assuming you will have two seats in of course.........
 
Oldskoolbaby":3pna0ai9 said:
That's a real oldskool setup that! I've only ever seen 1 in the flesh and it may have been on that green car. His car probably competed against mine at some point. As much as I'd love to go back down the 8 port route it's not legal in App K. The Coldwell heads were never used in production or on works cars so the only class I could compete with a crossflow is grp 5 which the car is currently. If I was to compete in the grp 5 class with the HSCC it would be with an Arden head and TJ injection if I could find it.
Brett,

Just spoken to Nick, he has loads of original gear for App K hidden in his cellar at home! Will PM you with contact details.
 
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