Roller Bearing Cam Conversion
Turbo Mini Forums

Afternoon

This might interest you guys. We can now do a kit which converts the cam to roller bearing. There is quite a bit of block work as you can imagine and it also needs a special cam but bloody hell it makes the cam run free. Should make a nice revving engine.

More info at

http://www.avonbar.com/product/?pid=15294



Cheers

Ian

Edited by AV-R Technologies on 23rd Jul, 2008.

http://www.avonbar.com

so what does it cost?

Paul

EDIT, OK saw it on the link

Edited by paul wiginton on 23rd Jul, 2008.

I seriously doubt it!

you owe me a new laptop...
i just spat out my tea....lol

£428.88

WOW!

Do you think thats a lot then?? We think thats quite good considering the amount of time and machining thats involved. Not forgetting the bearings, Cam and oil feed.

Edited by AV-R Technologies on 23rd Jul, 2008.

http://www.avonbar.com

I think it is a lot of money compared to the gains it might give. It would double the cost of my engine (not including head and box) and it certinally wouldn't double the bhp.

But, considering the work involved I'm sure it's good value.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

what % bhp gain could you expect from this?

Interesting,

I have been looking into ways of incorporating roller lifters into the A series block, I shelved this for the time being to get the car usable.

I will PM you some thoughts Ian.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

I'd definately rather see (and pay for) roller lifters than this.

Don't get me wrong - i do like the idea, but the hp/£ is - as Wil pointed out - rather high.

Nice Idea guys good to see this type of inovation. I dont realy see it as a Kit tho not realy like anyone elce can fit it is more of a service well done,

Yeh..i mean this is mainly aimed at our racing customers who want every last ounce out of there engine.
The last car we had this in was a miglia spec mini. It revved bloody well. It's not about a gain in hp it reduces friction and makes the engine spin quicker. Trust me...it works. After the car was tested it was sold to a jap so was never out on the rollers. Oh well.

http://www.avonbar.com

Yes - Miglia guys will definately go for this. I understand they off-set bore the cams to keep the correct tension on the timing ger without resorting to friction adding devices like tensioners. So if you're already prepared to offset, it's not a significant cost add I imagine.

BTW - you say SKF bearings, but that one in the picture has a Schaeffler unit. That is all i can fault really.

ps - Definately look into roller followers!!!!

out of curiosity, how could you definitively measure the difference in friction betwen this and the standard bearing?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

you could get 2 built engines, put the pistons at half mast, take the cam drives off, fit a 12v motor (something like a big cordless drill) and then see how much current each draws to spin it at the same RPM?

you can then work it out as a percentage?

Edited by Joe C on 23rd Jul, 2008.

so you can treat it just like a difference in resistance?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

yeah, reckon so,

bit basic but should give a good idea.

Combine this with roller cam followers and I'll be the first in the queue .

http://i28.photobucket.com/albums/c248/spe...er1/mini007.jpg

If it a'nt broke don't fix it !!!!!!!!!!!!!!!!!!!!!

No you won't, you'll be second!! :)

http://cgi.ebay.co.uk/A-Series-Camshaft-wi...p3286.m14.l1318

Ahh i was racking my brains for where i had heard of roller bearing a series cams recently,

you posted this the other week didn't you V?

jesus my mamory is getting bad lately....

so will this work with a std cam?? As all mini7 and miglias must buy there cams via the club

Team Racing

I seriously doubt it!