43 replies to this topic

[PhilipGCaldwell]

standard clutch fine

[MiniMadMan1996]

Nice! Think I've basically had all the answers I need! Thank you very much guys!!

[PhilipGCaldwell]

have a read through my build thread in my signature, may give you some pointers and pitfalls to avoid

 

Im half tempted to build up my old engine, I have a 12g940 lying about and would be able to stick a real cam in it, then swap the engines over at the weekend.

[Cooperman]

Ah right, I'll have to note all of this down, as far as clutches concern, will a standard 998 clutch be ok? Or would an ap racing clutch be better?

Don't use any sort of race clutch. A race clutch has a very strong spring and puts additional load onto the crankshaft thrust bearings. A standard 1275 'S' pre-Verto clutch with a pre-Verto flywheel, slightly lightened will do the job very well. After all, you are still not going to have the torque of even a standard Mk.1 Cooper 'S' which had 75 bhp, but loads of torque.

 

It really is not worth spending loads on modifying a 998 as it will still be slow by the standards of today and by the standards of, say, a Mk.1 Cooper 'S'. However, a decent 998 is still a lot of fun. I was thinking only today as I drove a Land-Rover Discovery diesel how slow it seemed, then I realised that its 0 - 60 time is about the same as a 998 Cooper of c.1964.

 

You will get loads of fun from it once it's all done.

[MiniMadMan1996]

Yeah, I just wanted a fun 998 before I go onto the big bore stuff, seeming as it's my first mini I wanted to do some stuff to it, Then eventually buy a 1275 engine and build up a proper beast

[PhilipGCaldwell]

1275 engines are a daft price too now, don't see them go for less than £400 on ebay atm. I bought my 998 engine for £34 on ebay!

[MiniMadMan1996]

Yeah, Swiftune have got a whole barn filled with engines!! Seen it personally

[Dusky]

Bought a 1275 Block Inc head and box for 150 euro, then a freshly bored 1330 for 150 as well (was a ripoff, Came without maincaps) but very lucky on the first one :)

[MiniMadMan1996]

Phillip, A lot of people on your rebuild thread seem to slate the sw5... Is that just because in your spec it was too tame? Or is that just in general? 

[PhilipGCaldwell]

just depends what people want I think, people seem to love revving the nuts off 998s so think they need a lairy cam. Maybe as well some people speak alot on forums rather than having actual real world experience of what was actually been done, the sw5 is by no means a race race cam but would give far better all around driveability, trust me, the 276 is just too much for general road use

[MiniMadMan1996]

Yes I defo agree on that! Keyboard warriors! I was just looking on the minisport site at their st544 cam kit, power band is a little higher than the sw5, 2000-7500, And Yeah I have to agree, even on my stage 1 998, I do rev the nuts off it quite a lot, but in a 998 it's quite fun to rev the ******* off of it! 

[Dusky]

The  544 ( or 643) is probably worse than the 276. You ve seen it on some of my vids, it needs revs. Anything over 3.5K and it starts to pull well , but for a road car I wouldn't use it. As always, everything depends on use, budget and what is  realisticly needed..

Totla different story in a 1275 tho :)

Edited by Dusky, 12 November 2015 - 09:53 PM.

[MiniMadMan1996]

Yeah, I did notice it had about 280 degrees, so yeah probably not good, AHH so hard trying to choose bits for an engine!!

[Mrpeanut]

Also consider the minispares evo1 and evo2 cams. The evo1 has bags of torque and is 266 ish. The evo 2 apparently SW5 ish. Both designed by Bill Richards I'm led to believe I've ran the evo1 and it was a great cam. Also consider AC Dodds range of cams. Either range will save you pennies over a Kent or Swiftune cam.

[PhilipGCaldwell]

Interesting about those minispares cams, never heard of them before, they are a fraction of the price!!!! May be buying one of those to build up my old engine, very attractive price