I've always taken the NSX Prime suggestions seriously, and I decided to buy a stock air filter to replace the K&N that was in my car when I bought it. I assume the prevoius owner has used it for about 15000 miles or so. The K&N was actually a lot smaller then the stock filter.
Just for fun I did some measurements with the G-tech pro gadget, to see if there was a noticable difference. I know the G-tech is not the most acurate tool out there, but my experience with it is that it is faily consistent, even though not acurate. I've used it on my ITR before and always got around 140 hp.
With K&N, 220-222-223-225 --- Avrg. 222.5 hp
With stock filter 222-225-223-226-228 --- Avrg. 224.8 hp
The runs were done within 10 minutes apart and the swap was done 4 times (i.e. in and out with stock 2 times and k&n 2 times)
so the weather and other conditions sould be the same.
What does this prove? Well, actually close to nothing. But at least it's nice to see that the stock filter is not losing any power to the K&N (maybe the other way around), and I now drive with the nice feeling of not damaging the car any more than necessary.
My stock ITR's numbers on the same G-tech was 140, showing about 20 hp less that what people typically het at the wheels on "normal" dynos (typically 160-165) The NSX average should be 224.8 + 20 (friction loss and drag loss) = 244.8 at the wheels.
Ok, enough talk. Any comments?
Just for fun I did some measurements with the G-tech pro gadget, to see if there was a noticable difference. I know the G-tech is not the most acurate tool out there, but my experience with it is that it is faily consistent, even though not acurate. I've used it on my ITR before and always got around 140 hp.
With K&N, 220-222-223-225 --- Avrg. 222.5 hp
With stock filter 222-225-223-226-228 --- Avrg. 224.8 hp
The runs were done within 10 minutes apart and the swap was done 4 times (i.e. in and out with stock 2 times and k&n 2 times)
so the weather and other conditions sould be the same.
What does this prove? Well, actually close to nothing. But at least it's nice to see that the stock filter is not losing any power to the K&N (maybe the other way around), and I now drive with the nice feeling of not damaging the car any more than necessary.
My stock ITR's numbers on the same G-tech was 140, showing about 20 hp less that what people typically het at the wheels on "normal" dynos (typically 160-165) The NSX average should be 224.8 + 20 (friction loss and drag loss) = 244.8 at the wheels.
Ok, enough talk. Any comments?