Quote:
Originally Posted by Ventmaster
A "few more horses" does not justify the removal of your catalytic converters. Modern vehicles are actually fed a richer mixture of fuel to improve Cat efficiency. The "restriction" has often been tuned to create the appropriate backpressure needed for the surprisingly large amount of torque our little 217 cubic inch engines provide, and the restriction is miniscule compaired to the original cats.
Its like saying the computer you're looking at right now is just like the ones used in 1974 (1st year of unleaded gas and the "cat").
Too often a little more noise is mistaken for power-and very often just the opposite is the case. I'd bet $100 bucks right now if you make no mods to a modern Camaro and just cut off the cats you'll do nothing but make noise, smell like raw gas, have a check engine light to look at, and LOSE power.
IMHO, of course...
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I think that is a good argument to be honest. I have been following this and I understand the cats have been really improved as far as not hurting HP. I would love to see that test you want as I am very curious. I am curious as you said NO mods, so could that change without being stock or is it NO moding in conjunction with the cat removal, like headers at the same time? (before and after dyno's)
My thoughts are if you are modding it kinda changes things in the tune and therefore the extra flow could help. IDK I am just trying to understand.