2G Weisco 1400hd what ratio?

[bmw335ikt]

What is good 8.5:1 or 9:1? I'll be running 93 octane and maybe later on e85

 

[99ECLIPSEGSXDSM]

Both will be fine on both pump and e85. Might have a little less knock with the 8.5:1 pistons on pump gas but in all honesty, you probably won't notice a huge difference between the two.

 

[ShadyDoins]

You won't really get any performance difference between the 2 except a slightly bigger tuning window on the 8.5 so that's what I would go with. Basically same as hombre above me said.

 

[Rich94]

Personally I'd go with the 8.5:1, you can run a little more boost.

 

[Spades]

If it's daily driven, you might appreciate the better gas mileage of the 9:1