CK5
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Fragmented piston
- Thread starter Rugger187
- Start date
Unless you are getting those "d-dished" pistons already talked about, you might as well throw the Vortecs away and put some camel humps or something on there, as the chamber characteristics are pretty well ruined IMO if you have some super deep dish pistons on there.
Either D-dish pistons or chambers that are large enough to get you the compression you need, with a good chamber.
Everyone likes to talk big about the LS-series motors, to my knowledge dished pistons are not used in those, seems a no-brainer to take GM's lead here. Fully dished pistons are 70's leftovers as far as I'm concerned. Quench is a known and important measurement that is pretty well static, you run excessive clearance and you remove one of the benefits of the chamber design.
Either D-dish pistons or chambers that are large enough to get you the compression you need, with a good chamber.
Everyone likes to talk big about the LS-series motors, to my knowledge dished pistons are not used in those, seems a no-brainer to take GM's lead here. Fully dished pistons are 70's leftovers as far as I'm concerned. Quench is a known and important measurement that is pretty well static, you run excessive clearance and you remove one of the benefits of the chamber design.
I don't see a problem if that is the case. Building a motor where all the pieces work together takes a bit of thought. 
All this talk about the static compression, quench, etc. What about calculating the dynamic compression?
Well without a knock sensor to take away timing when the engine was detonating it surely isn't a good thing. The knock system can only take away so much timing though so it may have still melted a piston.
Do yourself a favor and get a proper "tune" done to the prom before you grenade another engine.
The dynamic compression is what you should really be concerned with. That is the actual compression your engine will be at when it is running.
Here is some info to help you understand dynamic compression and also calculate your engine's dynamic compression.
http://www.empirenet.com/pkelley2/DynamicCR.html
Here is some info to help you understand dynamic compression and also calculate your engine's dynamic compression.
http://www.empirenet.com/pkelley2/DynamicCR.html
slimwhitman
Registered Member
hmmmm
why repost?
why repost?
this is correct, I just assume people can choose cams and one for this will tend to hold lots of cylinder pressure to keep low end tq. That is another reason I recommended 9 to1.
I decided to go back to a 350. Money and time dictates the switch. The crank needs turning and that coupled with new pistons and bearings is a wee bit of money.
I will be moving in the next few months and need my rig up and running and dependable.
So the machine ship is getting me everything I need for fairly cheap. And yes, I am keeping my stroker crank for the future.
I will be moving in the next few months and need my rig up and running and dependable.
So the machine ship is getting me everything I need for fairly cheap. And yes, I am keeping my stroker crank for the future.
