At 10:33 PM 3/27/00 -0500, you wrote:
[...]
> However, in doing some research on ram air, it is my understanding
>that an engine doesn't see any benefits of true ram air until app. 100
>mph. Yes, the fresh air does help, but for the air force to the TB to
>be greater than atmospheric pressure, the 100 mph mark would have to
>be hit. Any speed less and you would not see any increase in performance
>than that of a FIPK or open air filter.
> So with that said, I don't think that the benefits of a air box justify
>the cost of fabrication.
[...]
I agree with your assessment of ram-air, but I feel that sealing off the
airbox is worthwhile. While it doesn't really benefit you in a ram-air
sense, it does insulate the air filter from the hot engine, cooling the
intake charge. I found that building a (temporary cardboard and duct tape)
airbox to seal off my ram-air hood was good for about 3 tenths on the
dragstrip. I plan to make a permanent one out of sheet metal one of these
days... :-)
-Jon-
.--- jon@dakota-truck.net -- or -- stei0302@cs.fredonia.edu ------------.
| Jon Steiger * AOPA, DoD, EAA, MP Race Team, NMA, SPA, USUA * RP-SEL |
| '92 Ram 150 4x4 V8, '96 Dakota V8, '96 Intruder 1400, '96 FireFly 447 |
`---------------------------- http://www.cs.fredonia.edu/~stei0302/ ---'
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