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850 Is So Much Fun


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#1 ads7

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Posted 11 May 2019 - 06:48 PM

Well last Saturday I had a brilliant drive on my usual route from Oswestry to Bala via Llangynog over the mountains. First time I've really pushed the car with the recently fitted 850 engine.

Surprised by how it revved to 40mph in 2nd, 60 in 3rd, never had such fun in such a low powered car!

I'm aware of the inherent crank weakness at too high sustained revs so I won't be abusing the motor on a regular basis.

If you haven't driven the route mentioned I'd highly recommend it, just be wary of numerous sheep going over the high ground. I'm lucky to have these roads on my doorstep

#2 unburntfuelinthemorning

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Posted 11 May 2019 - 06:56 PM

That's why Minis are so much fun, enjoy.



#3 GT Jimmy

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Posted 11 May 2019 - 06:59 PM

Used to visit Bala on my bike, great roads, had many a near miss with those sheep haha

#4 mab01uk

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Posted 11 May 2019 - 07:21 PM

You might like this old thread......

 

Tuning The 850 Engine, Formula 850:-

http://www.theminifo...ne-formula-850/


Edited by mab01uk, 11 May 2019 - 07:22 PM.


#5 unburntfuelinthemorning

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Posted 11 May 2019 - 07:24 PM

It's the Muntjac deer you have to watch round these parts, and the mamils.



#6 ads7

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Posted 11 May 2019 - 09:08 PM

Thanks for the link to tuning thread, very interesting. Think I'll enjoy wringing the best out of the car on a budget until the current engine dies then try a modded 998. I've already been down the 1293 route and find I'm enjoying having to work harder to make progress

#7 DeadSquare

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Posted 11 May 2019 - 10:22 PM

First things first !    improve the brakes and suspension.

 

 

 

The crank isn't as weak as has been inferred in some of those earlier posts, but when you have the cash and strip the engine, having things lightened and balanced, helps a lot.

 

Meanwhile, you can get away without line boring the block if you don't use double springs, just stiffer single springs, which takes valve bounce well over to 6,000 RPM, and a  997 cooper cam won't add much stress. 

 

If you go to something hotter like an "Evo 001" cam, go for double springs and cam bearings.

 

It would then be worth polishing up the ports and chambers, and any time that you get the opportunity,  improve the exhaust and carb.

 

850 driving can be fun, because a lot of the time, you don't have to lift off for corners.  If you get too much power you have to start lifting off on bends !






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