So if i understand this correctly, with a stock s/c and crank pulley our ratio is something like: 2.56
Installing a 57mm s/c pulley only changes that to: 2.84
A 179mm crank pulley only changes that to: 2.83
1. So am i correct in understanding that a 180mm crank pulley would match the s/c pulley for ratio?
2. What ratio would a 187mm crank pulley change the ratio to (if s/c pulley was left stock)?
3. When you install a Stage 2 tune, what would happen if you were running a 187mm pulley (as it would offer a more aggressive ratio compared to a 179/180mm pulley)? Would a tune run lean?
Just trying to understand this better.
I suspect i may start with a crank pulley and tune and enjoy the car before going dual pulley....
Ryan
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