Hi
I have planing to build 4G63 2.2L stroke kit and CR would 10.5:1
I'm going to use 94mm crank, so what is rest spec of other rod length and custom piston ?
does this possible for long rod setup? ( 4g63 blcok 94mm crank 10.5:1 )

 

I don't like high rod ratios. It puts a lot of strain on your rod bearing and can cause failure. When road racing you run into oil starvation (unless your willing to shell out 5K for a dry sump). Your at a much higher risk of failure . I do like2.1L with the 4G64 block, longer rods, and 2.0L crank.

 

what spec piston is used in the 2.2 build is it a custom piston ?

 

Manley makes a off the shelf piston for it. For rods most people use 150mm (stock) as 156mm dont leave much room for a good ring position. If anyone needs a 94mm crank i have a new spare, fully balanced and blueprinted.

 

stock RR is 1.70
94mm crank with 150mm rod is 1.59
100mm crank is 1.5

150mm rod with a 94mm stroke will see the oil ring above the pin hole.
156mm rod with a 94mm stroke will see the oil ring into the pin hole, so the rod/pin will have to be installed before the rings.

http://www.manleyperformance.com/dl/2012/cranks.pdf
page 157 - 159

 

Manley??

 

here is a listing of what they offer. there are quite a few 94mm stroke pistons.

http://www.manleyperformance.com/sc/..._pistons.shtml