0.030 oversize pistons wanted; plus the name of a machine shop in Germany/Europe

What exactly are you looking for regarding compression ratio? I have a set of used .030 over pistons out of my Cleveland.

- Pistons via summit, .03 over is easy incl. different forms...even custom made is possible, did mine .02 over Ross racing..

- did have my block build by Jankee motors in Nürnberg, incl. balancing the crank, fylwheel...

Mattias

Jules , oh great! I search for pistions wich runs with the 4v closed chambers on pump gas. I think about 11:1
Mat , thanks a lot !
Können die auch intern wuchten ?
Danke
Thanks

quote:

Originally posted by GT4Peter:
Joules , oh great! I search for pistions wich runs with the 4v closed chambers on pump gas. I think about 11:1
Mat , thanks a lot !
Können die auch intern wuchten ?
Danke
Thanks

Balancing need to ask ...mine was internally balanced..app 400€.

11:1 is too high..use the spread sheet I got from our Danish kollege..goodroc..

Matthias

hi Mat, whay do you think that is to high ?
Thanks

Peter

Peter,

I am pretty sure the pistons I have are '74 stock Cobra Jet, so with closed chamber heads they will give you roughly 8.8:1 compression ratio.

Maybe take a different approach and state what you want to achieve from the engine and design what parts are optimal from there. A set of new pistons isn't overly expensive.

Peter Hi
first:
we talk pump gas in Germany Super..not Super Plus, correct?
The motor sucks app >20 liters/100km, so you want to manage this somehow, correct?

Second
are you building a race engine or a "dayly driver", you do not want detonations.. read VERY NICE PAPER from Geroge P. he got in there all the details you need ...AND use the spread sheet I sent you from Team member GOODROC to play with what you get/got...is a lot engine engineering to get it right IN THE FIRST PLACE, as you do not want to open up engine again to change cam or that sort of stuff...
In the excel sheet I got you, there are Trick flow heads (closed chamber) and cam from Crane...(see previous discussion..), and ref what I understand unless you go race 0.4...0.5 more static does not give you very much. The Team EXPERTS will tell you what it is, I guess 10 HP..


P.S.: Kevco pan came to Germany per USPS (did private shipment when I was over in the US) 86.50 USD ...at the limit on what USPS ships...but worked...

Matthias

Peter,

I sent you a PM with photos of what I have they are Keith Black KB148 +0.030'

They should provide roughly 9.8:1 with closed chamber heads.

Julian