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I don't think a dyno will truly show anything. But if you do get a dyno and be like the car lost 1HP! The engine will flux 2-3HP per pull on its own naturally. So it's hard to figure it out... I believe the only way you could compare is if you had a stock car with stock intake. Then compare the AFR's with and w.o. Otherwise it's just false data. PLus when you speak of throttle response we are talking milliseconds here. Also all CAI in your theory would have the same waves you are talking about and create bad throttle response since they don't have resonators. (the only reason cai's have better throttle response is the added volume in the tune and it's not so aggressive bends. This creates better air flow)
My theory: The resonators are put in place to reduce induction noise. All stock cars have zero induction noise. The sound tube was created to increase engine noise in the cabin to give that little extra pazaz of performance but in reality doesn't really change anything that dramatically. You can hear my intake scream now after 4k RPM's when my vvt and dual avcs kick in harder. Also i'm assuming w.o the resonators the car wouldn't be carb legal. Plus on a stock car when you are talking about 2k response time the only time I would see myself at 2k RPM's is in first rolling at 5mph and there will always be a flux in throttle response in first due to the drivetrain and gear size as well as 2nd. This will be more dramatic with a LWCP and LWFW. Since the ratio is so small and if you have the reduction in spinning weight/mass the ECU has to really think to go with throttle position let alone all the other variables. If you are in a higher gear your car in general is about to hit the torque dip and w.o headers the plot from 2k-4k is discusting. Mine shows this on the dyno graph. a camel back of torque between 2k-3k is always going to feel weird while driving.
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2013 Sion FRS
2014 Subaru WRX
2014 Subaru XV
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