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1988 John Cooper Works 1380 Engine Limited Ed.


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#1 CLCBurnout

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Posted 10 December 2012 - 03:04 PM

right so cut a long story short im a delivery driver for a well known supermarket and we deliver to a old guy, huge house £2m+ with loads of cars, countless, anyway i got speaking to him turns out hes got 2 minis a 69 standerd 998 which he wants 2500 for but what im interested in is hes got a late 80's JCW cooper s, the body is mint sitting on 13's as standerd i would expect,
Full roll cage, leather seats its the full works jcw brakes, the whole bottom is covered with various guards i havent seen it in detail as ive been asking to buy it for 6months or so and now hes finally said ill dig it out and you can see it at the end of next week.

he has said about every 100 standerd mini's in this eera they made 1 of these particular ones how true this is i dont know.

some of you may think oh he dont even know much about his own car sounds fishy etc but if you knew how many cars he has yourd realise that this mini is irrelevant

he drives it rarely between 2011-2012's mot it did 46 miles and done 23k miles total, its red, white roof white bonnet stripes.

so down to the dirty im not expecting any of you guys to say oh between for instance 4000-4250 im after a real rough, say 4k-6k that type of variance.

any opinions will be appreciated

Edited by CLCBurnout, 10 December 2012 - 03:06 PM.


#2 MaxAndPaddy

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Posted 10 December 2012 - 03:19 PM

Very early conversion car, you dont see many from the 80's as the majority were available for 1990 onwards models

Having said that John Cooper Garages were supplying the kit in the late 80's mainly for the Japanese market. Rover then recognised the potencial and expressed their interest to John and Michael Cooper.... hence the rebirth of the 'Cooper' in the 90's

I would say its got a fair value especially if he has paperwork to back up it is a late 80's conversion car

I'l do some more digging ...not sure on value yet :shifty:

#3 MaxAndPaddy

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Posted 10 December 2012 - 03:32 PM

Ive got my detective hat on :shifty:

These late 80's JCG kits were done in the Uk for mini enthusiasts, I wonder if they came with the signed certificate Mr Cooper gave out for his conversion cars in the 90's early 2000's?

I'm chuntering

#4 Guess-Works.com

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Posted 10 December 2012 - 04:11 PM

I think he's selling you a yarn...

There were 4 'prototypes' created for the 1300 JCW conversions, details of which were divulged in Mini world 2001.

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Prior to this I believe the JCW conversion was a kit and were 998 based, delivering about 70hp.

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Edited by Guess-Works.com, 10 December 2012 - 04:19 PM.


#5 MaxAndPaddy

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Posted 10 December 2012 - 04:53 PM

Before Rover had any involvement you could buy a kit from John Cooper Garages's for your mini but I cant find any details about it other than it was a 'Cooper conversion kit'

#6 jamiestevenbell

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Posted 10 December 2012 - 06:28 PM

A 69 for 2500 lol what conditions that in? Sounds cheap to me! And personally that's the one I'd be interested in

#7 CLCBurnout

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Posted 10 December 2012 - 09:52 PM

thanks for all your replies! im seeing them both the end of this week and probally buying the pair as there work out cheaper, once i see them ill post back with the correct decade of which the jcw is hes had it for 8 years and highly doubt he would have bought anything that would have been anysort of 'lookalike'.

does anyone have any valuations? id be interested to know what you guys think all i know about the 69 is that its white and described as abit ropey,

#8 Guest_minidizzy_*

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Posted 11 December 2012 - 02:09 AM

There is no such thing as a 1988 John Cooper Works 1380 Limited Edition, unless you mean late 1990s, but also not as a limited edition. The 1400cc (1380) Cooper conversion did not feature until the 1993 John Cooper Garages brochure and would have had to be done to a 1275cc Mini, either carb or SPi. There were no 1275 Minis in the 80s. The Cooper RSP was the first 1275 since the end of production of the 1275GT and it did not become available until mid 1990. The Cooper conversions before that were for 998cc engines. 13" wheels are much later. If it's a genuine Cooper 1400 S of the 90s it must be worth up to £15k. They are extremely rare. Conversion 0001/S, H15 FUN, listed in the letter quoted in Guess-Works' post was Mike Cooper's own car and was a standard S conversion in late 1990, the first ever for a 1275. It was bored out to became a 1400 S conversion later.


Edited by minidizzy, 11 December 2012 - 02:13 AM.


#9 Bungle

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Posted 11 December 2012 - 09:26 AM

i thought the 80's kits were 998 based and came in a nice wooden box that fitted on the back seat

#10 Shifty

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Posted 11 December 2012 - 10:05 AM

i thought the 80's kits were 998 based and came in a nice wooden box that fitted on the back seat


Yup, thats what I remember as well.

I seem to recall some 'factory jcw' conversions being done with red hots/racing greens?

#11 Bungle

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Posted 11 December 2012 - 06:12 PM

but all 998 based weren't they

i'm sure it wasn't till the cooper came out they started playing with 1275 based engines

#12 The Matt

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Posted 12 December 2012 - 06:52 AM

If the guy is minted, then maybe a one-off conversion was paid for? Value will depend on paperwork and receipts from JCW mate.

#13 The Matt

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Posted 12 December 2012 - 06:52 AM

If the guy is minted, then maybe a one-off conversion was paid for? Value will depend on paperwork and receipts from JCW mate.

#14 Guest_minidizzy_*

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Posted 13 December 2012 - 12:44 AM

I did think that it might be possible for a unique private conversion in 1988 but then again I think it would not have gone unnoticed. Mike Cooper lists all the early conversions in the letter shown above. G828 MGK was John Cooper's successful attempt to fit a 1275 MG Metro engine into a Mini Mayfair. It was given a power boost similar to the later 'S' kits. That was in 1989. Rover revived the Cooper in 1990 with a 1275 engine in the RSP and then the Mainstream. H15 FUN was a Mainstream and the first ever 'S' conversion to a Rover Cooper. I do not think anyone was considering 1380cc in those early days.
If it has 13" wheels it is most likely a mid 90s car. The 1400 S conversions are so rare that they do not come on the market so it is impossible to value them but they most be worth a lot more than the late Cooper Si models which tend to sell for around £10k.




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