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Rover Mini Cooper (John Cooper Converstion) (12 replies)

Alfabee71
4 years ago
Alfabee71 4 years ago

Hi Does anyone have a genuine picture of the engine bay of a Mini Cooper that has been converted by John Cooper garages ?
Also were the converted heads ever painted blue ? Just need to clear up some issues before starting a renovation Thanks

Tony S
4 years ago
Tony S 4 years ago

I can't help you with an engine bay shot, but I have had two Cooper Conversions.  The first was a Mainstream Cooper and the second a 998 conversion.  In both cases the cylinder head was blue.

1970cooperd
4 years ago
1970cooperd 4 years ago

Alfabee71,

 

I have a JCC on a 1990 Flame if that helps.  I do know that the majority of heads were painted a fairly bright blue colour. I think that these were the ones supplied by Janspeed.  But not all heads were blue. Mine is actually a yellow-green colour and it's been untouched since 1990 when it was fitted.

https://www.minicooper.org/wp-content/uploads/2017/11/mini2.jpg
1970cooperd
4 years ago
1970cooperd 4 years ago

Here's the cylinder head colour

https://www.minicooper.org/wp-content/uploads/2017/11/cooperid-002.jpg
Alfabee71
4 years ago
Alfabee71 4 years ago

Hi All thanks for the replies a real help. I'll probably be asking more questions later in the renovation. If there are anymore of these types of querks with the JC Conversion cars it would be very useful to know.
Thanks again

1970cooperd
4 years ago
1970cooperd 4 years ago

Here's one of the JCC heads in blue to give you an idea of the colour.

https://www.minicooper.org/wp-content/uploads/2017/11/Screenshot_20160129-152959.png
Alfabee71
4 years ago
Alfabee71 4 years ago

Thanks for the picture 🙂

NCMINICOOPER
2 years ago
NCMINICOOPER 2 years ago

Hello there,

I have just bought a 1992 Spi Rover Cooper. Its a 13K miles car. Totally original.  I have always wanted the Cooper and had wanted to convert using the John Cooper tuning kit sold via Mini Sport. 

I have been told by a couple of people to NOT convert. Reliabilty (oil leaks) has been mentioned, and it actually is only effective with shifting down and revving high to get the best - it sort dies if you leave in fourth and try to accelerate - not great on torque. And lastly, just the leave the car 'as is.'

So, what has been the experiences of anyone who has done the conversion? Is it worth the money to get the official kit for the improved performance ?

Lastly, will I harm the value of the car ? It's completely original.

Cheers

David

Patsy
2 years ago
Patsy 2 years ago

David

It does depend if you brought for investment or pure fun and to run it into the ground !! 

Best prices are paid for high quality low milage - ORIGINAL cars so leave well alone if you want a return on your investment

stuartadams1963
2 years ago
stuartadams1963 2 years ago

Hi Patsy,  

 

I've just joined the register and have a Rover MPI Mini Cooper Classic, one of the last Mini's produced (registered Nov 2000). She (sorry tend to name my cars) has covered £30K and is unmolested immaculate and all original.

I'm also keen to add the John Cooper Works conversion, do you think that spending an additional £2350 on a genuine conversion will actually de-value the car? The Cooper Sports seem to be a valued higher than the standard Coopers.

 

Thanks

Stuart

1970cooperd
2 years ago
1970cooperd 2 years ago

Stuart,

Firstly welcome to the register and the forum.  As Patsy advised David, fit it if the cars is purely for fun and you want to enjoy it.  However, if you are looking at the car as an investment then leave the car standard.  I don't believe that the current JCC kits sold by MiniSport hold the same cache as the oringinal ones fitted in the very late 80's and 90's.  Unless someone can correct me on this 🙂

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