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Could this supposedly get round the issue of high revving engines wearing out main bearings. Or does it still not get round the fact that the centre main bearing would still not be of sufficient width to support the load placed upon it by 2 piston and rod assemblies?

Still, even if it doesn't sort this out the piston and rod assemblies look the dogs danglies.

Edited by minimole23 on 14th Jan, 2011.

[X] nail here for new monitor

It's completely different to the MED one. The MED one just has larger counter balance webs

The Swiftune one looks the nuts

Edited by Chris Dillow on 14th Jan, 2011.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Bearing (see what I did) in mind that the A-series cars at Goodwood have to be presented to the scrutineers with the heads removed to prevent the bore/stroke "cheating" that was rife a few years ago, how long before they have to be presented with the sump/gearbox removed ?

Metric is for people who can't do fractions.

Looks like an avolution of the Graham Russell crank.

TBH looks a lot like a Subaru crank with the journals so close and very thing webs

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

That is porn! aand a clever idea, although it can't be the first a series crank of this type? i would like to see an engine in action using this crank, interesting to see how much of a difference it actually makes.

[X] nail here for new monitor

On 18th Jan, 2011 Asphalt said:

On 18th Jan, 2011 george91 said:
That is porn! aand a clever idea, although it can't be the first a series crank of this type?

Apparently not http://www.ausmini.com/forums/viewtopic.php?t=68263

[X] nail here for new monitor

Inline crank?

If something is worth doing, it's worth doing half of.

bloody hell those russel cranks work out at £2500

MED are going to be making the Russel design cranks apparently, so the price should come down accouring to GR.

On 17th Jan, 2011 Vegard said:

On 17th Jan, 2011 stevieturbo said:
TBH looks a lot like a Subaru crank with the journals so close and very thing webs

Luckily A-series cranks don't break as easily

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

I want to win the lottery....

That'd be interesting to see.

Even the guy running the fastest 4cyl manual Subaru in the world hasnt broken one.
And he uses some crazy boost and rpm's !

I'd say anyone who has broken one has caused the damage themselves. They just do not break.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

I remember there being an issue with the Subaru gearboxes. Jim Bamber's Yumping Yarns on the back page of Car and Car Conversions made light of this fact depicting the parts store with racking only filled with Subaru gearboxes

Yep, a gearbox i could understand - that or the big ends self destructing, as that seems to be a pretty common problem too with the boxer engine - happens all the time.
I've never heard of a broken crank though, either....

Edited by Fortecphil on 19th Jan, 2011.

From what I remember, and I may be wrong, the Subaru issue with the crank was oil starvation that caused the failure. It was not the crank just failing.

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

Yes, big end failure is quite common.

Usually down to crap maintenance and abusive owners.

but improvements to the oiling system have been made over the years too on later models.

Use the right oil, service and tune the car properly, and they are very reliable.

But Ive never seen or heard of a broken crank. Very off topic though, so sorry.


The swiftune crank looks great though.

Any indication of prices for a rotating assembly ?

Edited by stevieturbo on 19th Jan, 2011.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Has anyone tried putting heavy metal into the webs of a normal billet crank?

As the do in F1

Chris @ Smart Performance