[minioneandrew]

Ok before everyone on the forum says by an S, i am only wondering what the differences between the two engines are. The main differences i can think of, are:
1) Supercharger duh
2) Ecu
3)the pulleys etc for driving the supercharger
4) different intake system including different cylinder head?

I cant think of any other differences (engine wise as i know that an S has uprated brakes etc). Just thought of this as you see used superchargers on ebay all the time! And also because a friend has just upgraded from a Yaris t sport to a civic type R. He has wasted so much money buying a new car after only having his yaris 6 months all for the desire to have more power. With the depreciation in cars for people who like modifying , why not just upgrage your car if it can be done simply? Opinions?

[CC07ERS]

no its not simple but it has been done i think 123autos has one

[humph]

Quote: Originally Posted by cco7ers (original)

no its not simple but it has been done i think 123autos has one

I may stand corrected but I think the 1320's autos car is a one with an S engine in it.

I believe that the S engine is substantially uprated from the One/Cooper. It is reasonably common knowledge on here that 140bhp is about as much as you can reliably get from a One/Cooper lump. Have a look at the Lohen 150 bhp kit and check out the amount of stuff they uprate to get that.

[minioneandrew]

I really dont know? I heard the engine blocks where exactly the same apart from the intake manifold etc , supercharger and cylinder head. If i was to go onto ebay i could buy almost all these parts for less than 5oo quid so... (however i may be talking ****)

[CC07ERS]

i was close but your right

[MINIAC]

FAQ: Where can engine, powertrain and supercharger details be found?

[minioneandrew]

So basically if they are so different you would be better just tracking down an S engine and getrag gearbox putting them in....brakes and clutch etc would have to be uprated - i plan on uprating my brakes and clutch in the future anyway. However wonder if a one/cooper engine could handle the extra power. Lohens car handles 150bhp easily so an extra 13bhp from an s engine surely couldnt hurt that much???

[1320autos]

Cylinder Block are different in that the Cooper S has oil squirters that squirt oil under the piston to help them cool down.

Crankshaft Cooper and One are cast and the Cooper S are Forged so are a lot stonger.

Con Rods One/ Cooper con rods are cast where as the Cooper S is forged and the piston pin is fully floating and bigger

Pistons One Cooper are Cast

The worst job is changing the master to slave cylinder pipe you will also need quite a few silly parts as well.

I'll be loading some pics on our website showing the difference soon, when I get 5 mins

WELCOME TO 1320autos.com

[Ant FR]

surely the S lump must have a lower compression too to run the Supercharger.

Also are'nt the brakes all the same on one - cooper - cooper s. read that in modern mini somewhere.

[Richard Crofts]

The engines are very different. The only bit thats pretty much the same is the actual block itself. Obviosuly you have all new/different bolt on bits like the pulleys etc etc. But the head, pistons, cam, and numerous other engine internals are different to allow for the correct required compression and also enough strength to cope with the extra power. It is far more difficult than just bolting a SC and intercooler on it. Basically is not financially viable or worth the bother to do. A small size turbo kit would be a better bet, but your still not gonna be able to achieve S output without some serious work to strengthen the internals on the engine to allow it to cope with increased power it has to handle. The other major area of concern is the gearbox and possibly clutch plate. On the older Coopers and ONEs the midland gearbox was defo not up to the job of coping with much more than 140-150bhp.

Good luck if you try it but I'd advice dropping a full S engine in or a turbo kit TBH.

PS. The S doesn't have different brakes, I believe the S only has different brakes on the new R56 model, which is turbo not SC.

R

[alski]

lsd option from 04 onwards, so if you get the power it helps to stick it on the road, budget 500+
to 1 k to stick that in, imho it would be far less work to get a wrote off s and rebuild body panels and paint
rather than do all that work with a one engine, and also dont forget insurance cost will be more for a 160hp one than a 170 hp s
enjoy your dream