Food for thought, this was a discussion between myself and Mace (Steve)
High ratio 1.9:1 (inc pushrod) and 1.9:8 does, I understand there is a specification difference, but I need a actual explanation what difference it makes in pro's and con's. (more fuel consumption, risk of blowing something, greater wear and tear to motor )", I understand giving me the Cons is actually not such a good sales technique, but honesty is what secures sales, (for me anyways).”
Great minds think alike I personally strive to be transparent about our products to enthusiasts, based on their needs/requirements, such that we can insure that they get what they’re after. I’m more then happy to answer questions, if I’m asked (I’m no mind reader LOL!).
The pros with rockers is that they offer quick and easy genuine bolt on gains, with minimal impact on fuel economy (depending on how it’s driven). The cons well there really isn’t any with the exception of tired valve springs, (on cars which have travelled a fair few k’s), may cause the valves to float in rare instances. If not treated (replaced) will eventually fail.
“Basically I want to know what rockers can do for the car, and what the ratio's do differently, also how does it act with your 10psi pulley system and your Int Cooler setup.”
As mentioned before, they allow the engine to breath much better much easier. In the case on an L67 with a 10psi (3.4”) pulley I would stick with the 1.9:1 ratio rockers, if you plan on running even more boost with an intercooler then I would go the 1.98:1’s
----------------------------------------
Just thought, seeing it has been covered before