f4r 7**??

[Richard102]

Hi all im trying to find out what the standard compression ratio is on a f4r engine but what does the 730, 732, 736 etc mean? The engine is a spare engine i bought off here so unsure what it came out of?

Rich

 

[bloke]

afik what it came out of.

 

[Richard102]

Does anyone know what the standard f4r compression ratio is?

 

[Dan@SJM]

11:1 for a 172
11.8:1 for. 197