29 replies to this topic

[Jammy]

This page should help.

EDIT:And this.

[wolfys_mini]

Morspeed phase 2, MLs favorite same as the 246 but even more lift and faster opening rates, The hottest cam that can be used without up setting the idle. Pretty much the ultimate in terms of low mid and top end torque production for a smooth idle cam. Does tend to have a little noisey valve action than the other cams dues to I suspect the rapid opening rates employed to make this work so well.

Morspeed phase 3, MLs favorite ultimate road cam, can be looked at as a modern 276 kent with none of the bad bits. More low down pull, more mid range and more top end wthe less emissions. For road work ML recommends a 1.25 rocker. You can expect a lopy idle with this grind.

[Jammy]

Which one to choose.

Lookin for a lot of orque, so guesing a high lift kit with a 266 should do it.
But Which????

Swiftune SW5, recommended where maximum low and mid range torque output is the main aim of the engine build. Designed to make full use of a 1.5 rocker on larger engines.

[wolfys_mini]

the ultimate in terms of low mid and top end torque production for a smooth idle cam

[Jammy]

Suppose it depends where you want your torque then! If you want to have to rev your engine a fair bit to get anywhere (and the higher you have to rev your engine, the shorter its lifespan will be), get the Morspeed ph3. If you want a bit of a lazy engine to drive, put still pulls well throughout the rev range get the SW5.

I suspect the Phase 3 would make a great fast road/trackday Mini, and the SW5 would be great for general town and motorway cruising.

[Sam Walters]

sw5 all the way, i had a piper 285 and changed it for a sw5 and its loads better

bit of a diffrence in cams there, the 285 is nearer the sw10. basicly a fairly fast road cam with lots of duration

the sw5 is fairly short around the 240 mark so it will run better.

[wolfys_mini]

spot on jammy

thats what the ph3 is for, but sticking in a road engine would be niiiice!

ultimatly, go for a 649!

[Andy_Jansen]

The car will be used for cruising around. No daily driver.
Once in a while to use it for a trackday, but mostly going to cruisin around in the mountain (ahum no mountains in the Netherland, but still a lot of hills) in the weekend.

Just want lots of torque at 1500 RPM, but still be able to rev it up to 6000-6500 at maximum.

[wolfys_mini]

ph3 it is then

649, nothing until 2-3k, then loads!

thats what you want!

Edited by wolfys_mini, 04 March 2008 - 10:07 AM.

[Andy_Jansen]

It still is 6-1 for the SW5.

Heard a lot about this cam, but don't know anyone who has one.
A friend of mine drive a mini with a 276 from Kent and he car is rubbish, he loves it though.

But since that's a 1380 with a Weber I don't think that I can compare his engine to mine.

I just want lots of torque from the beginning.

Hope I will achieve is by using

1275
Stage 4 head
Ultralight flywheel
camshaft ?????????????

[Jammy]

Personally I think you could go for either the SW5 or the Phase 3 and not be disappointed at all.

[wolfys_mini]

ph3 all the way

[edi57]

Here is a Camshaft Comparison spreadsheet made by a good friend of mine.

http://www.edhodson....tcomparison.htm

It may be of use to you.

If anyone spots any inaccuracies, let me know and I'll get him to sort it out.

[Andy_Jansen]

That's very usefull

Thank you.

The only thing I see now is dat in and out duration are different in some cams.
Which one is it when they say it's a 266 or 276??

The SW5 had less out duration then the standard one I've got

[edi57]

That's very usefull

Thank you.

The only thing I see now is dat in and out duration are different in some cams.
Which one is it when they say it's a 266 or 276??

The SW5 had less out duration then the standard one I've got

Those numbers are just the manufacturers model number. They tend to just give a rough idea to the customer of how hot the cam is.

The SW5 has less duration but has more lift than a standard cam. It's the combination of lift and duration that gives power.

The longer the duration the less smooth the engine is at low RPM. Higher lift tends to affect this less so a short duration high lift cam gives smooth running and good power but short duration high lift cams put more strain on the valve gear as the ramps are steeper on the cam.

Edited by edi57, 05 March 2008 - 10:33 PM.