[PAUL K]

Originally Posted by slowbird

If that balance hole offsets the gains from the alum rods, then the gain was so small it wasnt going to be noticable.
Besides that how does lighter rods increase performance?

The gains or losses from different reciprocating weights are usually small but real. Manual trans guys have played with flywheel weights for decades to increase their cars performance. It's kinda like the difference between power producing atmosphere and warm temperatures with lots of humidity and low barometric pressures.

[slowbird]

Originally Posted by PAUL K

The gains or losses from different reciprocating weights are usually small but real. Manual trans guys have played with flywheel weights for decades to increase their cars performance. It's kinda like the difference between power producing atmosphere and warm temperatures with lots of humidity and low barometric pressures.

So the lightest possible flywheel is always the quickest for stick cars?

[slowbird]

Light weight has its benefits but 99.9% of the people won't realize those benefits. It just costs more money and increases maintenance.

[PAUL K]

Originally Posted by slowbird

So the lightest possible flywheel is always the quickest for stick cars?

Not necessarily

[PAUL K]

Originally Posted by slowbird

Light weight has its benefits but 99.9% of the people won't realize those benefits. It just costs more money and increases maintenance.

Why does it cost more money and increase maintenance?

[AG]

Just picked up block etc for my brother's motor Friday. Eagle 6.625" rods, Icon forged pistons bob weight is 2190.6 g.

[slowbird]

Originally Posted by PAUL K

Not necessarily

But lighter is better isn't?

[PAUL K]

Originally Posted by slowbird

But lighter is better isn't?

Depends

[Dragncar]

There used to be a 56 chevy stick car that set a record years ago at our track. He had a very heavy flywheel, and a 265 small block.
Dan Whittmore about a couple of builds where the customer insisted on changing from steel to aluminum rods. Seen no difference. He generally did not like aluminum rods. Worrying about cycles and warming up your engine. Block heaters and all that. Had a customer who lived in cold weather and did not pay a lot of attention to warm ups, windowed the block.

[grandville455]

So My New Combo is balanced and with the bigger bore, but lighter rings etc, its lighter then last combo just a tad at 2238 now..

[GTOGEORGE]

2010.5



GTO George

[vidguy]

On the 400 Paul Carter built For me:
Bob weight = 2332..

But do you know how far off each end of your crank is?