| compression (8.5.1) or 8.1 for their builds as these compression numbers are more desirable for bigger power. I also think you'll find the exception being the higher compression ratios. Ash is also one of the more experienced and knowledgeable guys in the Z community. Not that you have to listen to everything he says but he's not steering you wrong here. Hes not saying you cant run 9.1 he's simply saying that 8.1 was more desirable in this case. There are in fact guys who have turbo'd the NA engines with stock NA compression 10.5.1. I know guys who run 9.1, I even had for awhile without issue, but it isn't ideal in many cases. It can be a limiting factor in reaching higher hp numbers with increased boost reliably. It depends on what you're building towards.
" I told my son, you have to catch the football other wise this just looks like child abuse." - My brother |