[signalpuke]

Brand new, the 06 tsx rods/pistons/block will be the strongest oem k24 bottom end.
The TSX blocks have piston squirters, and the rods are stronger than the accord and crv variants.

 

[signalpuke]

For now, my K20A2 is internally stock with a 3" custom intake, RBC IM, DTR headers, 2.5" exhaust and Kpro. If I upgrade to something like IPS-K2's, valvetrain, PnP and maybe over sized intake valves, ported RBC, 70mm TB , 3" exhaust with a K24 block, would forged rods and pistons be necessay?

No, they are not necessary, but you could skip the head stuff (pnp/ os valves). Just get the cams.
Spend that money on rods and pistons and you will see a larger gain throughout the powerband and less risk at higher RPM.

 

[signalpuke]

I took a K24A1 crank and a K24A2 crank to the balance shop and the K24A2 crank had far less deflection at higher RPM's, so yes the K24A2 crank is stronger.

Were they both new?

 

[signalpuke]

The A1 crank was new and the TSX crank was a used crank.

Cool, thanks for sharing.
I wonder why one would be stronger than another, are they made in different locations?

 

[signalpuke]

Could be, bearings are made by different suppliers, maybe different suppliers for the Cranks, I know that I took 3 cranks to a balancing shop and the CRV ones were not balanced, just the TSX one, They only need it to touch it up when the guy took it to 11,000 RPM.

Yeah, I saw that in the other thread. I think talon is on the mark with what he said regarding the difference in oem bob weight.

could be the same molds just different metallurgy....

I was thinking either that or heat cycling. Maybe just a more powerful press.