[mfalba]

Anyone know the dome volume of these?

 

[mfalba]

Bump!

Anyone know?

 

[brassman]

check with Don ( dewey's heads ) I think he sells them

 

[claydbal]

dome volume on flat top? maybe valve relief volume?? if not cut for oversize valves, try 1cc

 

[strokerjlk]

dome volume on flat top? maybe valve relief volume?? if not cut for oversize valves, try 1cc

:beer:..........

 

[mfalba]

dome volume on flat top? maybe valve relief volume?? if not cut for oversize valves, try 1cc

Mais ya!!!

Well, most of the companies that manufacture pistons do list a "dome volume" for their flat top pistons as a negative number.

Unfortunately there is little to no information out there on these particular pistons, and these are the pistons I happen to have.

So far I've been quoted two different values from the place where I got the pistons and cylinders, -2.0cc and -3.0cc. so I'm kind of wondering now what the actual truth is, as the valve reliefs have not been cut for oversize valves.

I've measured the volume of the valve relief's myself by dripping fluid onto them, using a syringe on a level surface and got about 0.5cc for each pocket, so if the valve reliefs are the only factor in determining the "dome volume" of a flat top piston, then I guess I've got my answer.

I just figured that there must be someone on the forum who has experience with this particular piston and who would know the actual specs.

 

[Don Dorfman]

Sorry I would be of no help.
I would think Chaz could help you.

 

[mfalba]

So I assume that your opinion of Wossner Pistons isn't too high?

Well that's helpful to know.

I think I'll just call GMR for a set of his 98" cylinders and pistons and be done with it!

 

[Don Dorfman]

I love the guys at Axtel and wouldn't want to say anything malicious but my personal experience with those pistons was not profitable and there were some very unhappy customers. I set them up at .0027 every time and the bores were perfect.
Use CP pistons for your project and all things will be fine.

 

[mfalba]

I love the guys at Axtel and wouldn't want to say anything malicious but my personal experience with those pistons was not profitable and there were some very unhappy customers. I set them up at .0027 every time and the bores were perfect.
Use CP pistons for your project and all things will be fine.

Thanks for your advice, CP it is!