engine and drivetrain New cnc machined roller rockerarm for M10/M30 by dynotech.se

[TobyB]

Don't get all twitterpated about overall lift- the real gain is in rate of opening and closing

between .050 and .350, in the real world.

THAT will be worth the wait, methinks...

 

t

[Tiger75]

Any progress on this?

[02robert]

Status about my roller rockers:

 

I have been working my ass at my shop building and fixing others cars. I have engine builders from England, Germany, Russia and united states that hhave contacted me and are very intrested in this. So now at low season I will end the last testing to made the product final! I have tested them and FEM analysed them to perfection. But since I'm never satisfied and would not compromisng anythng when finaly making a couple of hundreds of these rockers and cams. I decided to make it even more over laboured. I want to lose weight of it, a steel bearing ring will be heavy in my eyes, so therefor I decided to make the inside parts under the bearing in titanium also the roller axle will be titanium. This will putt the total bearing weight down to under 25grams with axle! And to total weight of the rocker to around 85-90gram totally with adjustmentscrew!!! I have not have any failure during testing of these, I just want to make it as good as possible before it goes to production. They will made of Swedish Material and 100% made in Sweden with Mazak/Mori Seki machines, no outsourcing to china or anything.Will this affect the price? Well yes but also the quality, I want it to be top end!

 

But I want to be 110% sure of all the clearance and materialinterferance, so I made a jigg to rev a camshaft with rockers valves and everything of to 8000rpm = 16000 Engine RPMS! With rpm meter and pre oil warming to 100% Simulating as they have been in a high reving engine. I can lock it at 10000rpms for a couple of hours and later dissembly the rollers and inspect them for wear and such.

 

 

 

Here you all have a small Sneak Preview

[Rocan]

Unbelievable work!!!! I can't wait to see the finished product!

Any idea on cost at this point?

[roadhog0]

Holy rollers batman! Those will be awesome!!

[02robert]

Here they are!

 

Total weight of only 82,4g!!! Thats 5grams less than OEM!!! With roller, titanium parts and adjustmentscrew with locking nut, complete!

[Rocan]

Now THAT is an amazing piece of kit right there. 

[MKINNA]

So when are the production sets gonna be ready, and how much will they cost$$?

[02robert]

Plan is to have a introduce-price at 1600usd for all preorders and then later be around 1800-2000usd I guess. Hard to say exacly becouse of the expensive materials and machining so plus minus alittle.

[ar_kid]

Are those Porsche 911 tappet screws? You may be able to shave a few more grams by cutting them down

Rgrds

[TobyB]

That $$$ is with cam, hopefully?

 

t

[zinertia]

Robert

Any more information on the roller rockers? 

 

thanks

Dennis

[Lorin]

What happened to this development?

[Harv]

I know really?

 

john

[DavidMatthew001]

Where these rocker arms ever available to the public?