170 vs. 225
Maybe I should have chosen different words. Maybe "better" isn't what I was lookin for. When you go forced induction, cubic inch displacement doesn't matter as much as going N/A. That's probably a better way to put it. There are a LOT better people than I to help you. I am sure they will chime in and we might BOTH learn sumffin. lol
The various "hot rod associations" such as NHRA and IHRA have always classified modified cars according to their weight, divided by their engine displacement, with the exception of a few "spec classes" like Pro Stock..
The difference in a 170 and a 225 is virtually 33-percent.
ONE-THIRD.
That's lot to make up.
The 170 has one thing going for it; having a one-inch shorter stroke than its 225 brother, it loves to rev...
But, that's it.
EVERY OTHER engine specification relative to
output at full throttle gives the advantage to the bigger motor.
In certain classes of competition (in organized drag racing) the 170 has the advantage, but in the (street driven) real world, there is no comparison.
Unless you're running an NHRA or IHRA class with your car, and it's a pound-per-cubic inch class, there's no eathly reason to give away 33-percent of your engine's power-making capability.
One reason might be if you were looking for that last mile-per-gallon of fuel economy.... but, I can't think of another.
Hope this helps...:cheers:
