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Discussion Starter #1 (Edited)
I am wondering if anyone have done this because I am about too. Are the rod journal the same in diameter on both motor?

My new simple oem build

k24a4
balanced, micropolished and chamfered crank
09 tsx 11.0:1 piston .25mm over
07 tsx rods
k20a oil pump, pan, oil cooler
k20z3 head / k20z1 cams
Rbc im
:confused:
 

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yes there the same
 

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Discussion Starter #4
Would I be able to rev this motor reliably to 8000rpm with this setup? I will post up pics of the build soon.
 

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Would I be able to rev this motor reliably to 8000rpm with this setup? I will post up pics of the build soon.
Yes.. With no problem...
 

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Discussion Starter #6
throw some 06-07 TSX cams in there :up:
I though about that but the k20z1 has almost identical cams as the k20a so I was debating on whether I should spend that money. I think I would prefer to save up some money and buy the Ips Kme for a 250whp simple build later on.
 

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It will fit in the block, but from the looks of it, you will experience Piston to Valve Contact. Check out the design of it.

 

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Discussion Starter #11
Well I found out that I could not use the 09 Tsx piston and rings that I had bought. I will probably go with the 07 Tsx 10.5:1 pistons. It starting out pretty bad already. I should have done more research before ordering parts.
 

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Well I found out that I could not use the 09 Tsx piston and rings that I had bought. I will probably go with the 07 Tsx 10.5:1 pistons. It starting out pretty bad already. I should have done more research before ordering parts.
Sorry to hear that, what was the issue with them?
Do you have the pistons fitted to the block?
I would like to see a pic of them if you don't mind posting one up.
 

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This is the older TSX piston compared to the new one.




You can clearly see that the design of the piston has changed a lot.
 

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So... does the main problem lay in the rods? Are TSX rods longer than Accord A4 rods?
 

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Discussion Starter #18
Sorry to hear that, what was the issue with them?
Do you have the pistons fitted to the block?
I would like to see a pic of them if you don't mind posting one up.
The 09 Tsx piston looks like the Accord K24a4 piston but instead of a dish it as a dome in the middle. The tsx piston has the same raise edge that the k24a4 piston has and that is the problem. It will hit the k20 head.



 

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instead of using a 09 TSX piston, im pretty sure an alternative for higher compression you could shave the black deck height a couple thou, or machine the head, and use some high compression valves
 
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