jontysafe

Anyone seen this yet:

http://www.zrp-rods.com/default.aspx?id=3&cId=8&pId=902

Caddyshack

So what CC do you end up with? Would you then need to buy different pistons or have these machined depending on what camshaft and valves you have and what compression ratio you are running?

jontysafe

Using the 84mm stroke and 92.00mm you end up with 2.24. Seems very cheap!

Caddyshack

Yeah, that is what I thought, trouble is that if it breaks it can take a lot of expensive bits with it.

Mark Shead

Looks cheap it would be interesting to see what its like long term,
It would also need spray jets and clearance of the block, For me 84mm is very tight in there,
The pistons have thin wall pins also and I think comp is a little bit high if you want to run a small turbo at lots of boost.


Mark

Caddyshack

I hoped you would comment, at this level the engine builder is key

jontysafe

http://www.ikengineering.co.uk/index.php/products/crankshafts

There is also these but correct me if I'm wrong Mark 19kgs is very weighty?

He does rods to match for £525.

How much are oil squirt jets fitted nowadays?

Mark Shead

Oil flow through crank is not very good as its cross drilled. The crank looks very basic.

Mark

jontysafe

This is where the expertise comes in then because I wouldn't know that.

Is this where the arrow cranks are better machined?