Min assembly weight effect on ET

[Rob Petrie E395]

Originally Posted by Stan Weiss

That depends on where and how much weight was removed. Is the part now no longer as strong as it needs to be, and it is flexing which will cost you more HP than the weight saving gave you?

Stan

The bulk of the weight reduction would come from a lighter rod. Production GM rod that has had small end bushed and ARP rod bolts installed vs significantly lighter Manley Rod thats on the approved list.

[Stan Weiss]

Originally Posted by Rob Petrie E395

The bulk of the weight reduction would come from a lighter rod. Production GM rod that has had small end bushed and ARP rod bolts installed vs significantly lighter Manley Rod thats on the approved list.

Then you should be fine. I took it as you were going to lighten the parts you had.


Stan

[GTX JOHN]

On our small block Mopars less than a hundred.

[Jeff Stout]

I was hoping for a better outcome. Im about 120 grams per assembly heavy. Thats basically running a ninth piston assembly

[Kirk Morgan]

I dont know about horse power but it should help the engine accelerate quicker.

[Stan Weiss]

When I produced that graph I just used the weight stated and picked a distance from the center line and an acceleration rate.

How much does that weight change reduce the needed bob weight, or it other words how weight can be removed from the crank also?

Stan

[Signman]

When we were looking at this back when piston rod assembly weights were enacted the thought was to remove as much weight as possible from reciprocating components and bring it toward the center rotating mass. This would be just one place to work.