It won't be off lol. 4g63 crank/rod 88mm/156mm, 100/150, 94/153, 4g64 100mm/156mm, 94mm/159mm, 88mm/162mm, ALL use the same pin height. The only difference between the 4g63 pistons and 4g64 is the 4g64 has a larger bore size. The taller deck of the 4g64 allows for a longer rod for a given stroke...

put these..
http://www.extremepsi.com/store/prod...at=1586&page=1
..in your 4g63 block with 88mm crank/156mm rods. They are "normal" stroker pistons.

The 4g63 starts with 88mm crank/150mm rods. If you go to 100mm/150mm, you raise the pin height in the pistons to account for the 6mm increase in stroke "radius". If you use an 88mm/156mm, you still raise the pin height 6mm, but this time its because the rod is 6mm longer. Therefore, "normal" stroker pistons work...

 

stroker pistons have larger dish because longer stroke brings more CR

if you put normal stroker pistons in a 88 mm setup you will have less CR

if you chek out the wiseco catalogue you will see the dish cc for various pistons and corresponding CR for various stroke and bore combos.

wiseco doesnt have a 10.5 piston for 156 rod 88 mm stroke in a evo application.. they do for DSM..

I have used 10.5 CR strokker pistons in my 156 mm 88 stroke setup and those yield 9.4 CR.

So no, you cant just slap in a set of strokker pistons.. OP needs specific pistons to achieve 10.5 CR on a 156 mm setup with 88 mm crank and CP stocks those.

 

After much consideration i go for CP as it easy obtained for their catalog. For wiseco it needed to wait for custom made as it not a plug n play from 2.3stroker as i will nt achieve yr desire CR.

So make up my mind to change from 2.4lr to 2.0lr with big turbo!!!!

I really appreciate all those who reply to my thread to enlighten my build.

 

So just to clarify, because I want to build a 2.0LR in the next month or so, your using a 156mm rod with a 88mm crank and a off-the shelf CP piston. What is your expected compression ratio, and can you tell me the part No of the piston. I was wanting to go with a 156mm Manley I-beam rod on a standard crank and a 85.5mm CP piston with a target compression ratio of 9.5 to 1.

 

http://www.cp-carrillo.com/Portals/0...CPCarrillo.pdf

page 56.. SC7238 just dont get confused as in the same table they have pistons for 156 mm rods and 94 mm stroke

I used wiseco hd 1400 stroker pistons for 10.5 CR on 100 stroke... when used with 88 mm stroke I get 9.4 CR as wiseco doesnt list pistons for 156mm rods in EVO aplication..

 

Thanks kikiturbo
Ok, so my plan is to use the CP SC7238 piston with the 14421-4 156mm Manley I-beam rod. Aiming for the 9.5ish compression ratio. Got R2 cams and 5041 gsc springs and retainers and a black turbo. Hoping this setup will let me rev out to 8500 or so to make the most of the cams and turbo's power band. Can anyone see anything wrong with my plans, all imput welcome.