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Mills
Dodge Dakota
12/12/2001
20:58:00
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 Subject: k & n FIPK 4.7
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Message:
hi all.....getting a tad antsy, so i sent an email to K&N. here is the response:
Our R&D department has been designing and testing kits for the Dodge 4.7 Rams and Dakotas for several months. At this time, testing has not brought results that meet our standards for improved horsepower. We have some prototypes currently in testing now and if all goes well hope to have them in production in the very near future.
Unfortunately, though, until and unless the results of the current tests are positive and meet our standards, we cannot estimate when production will begin.
Please check back periodically or check our online application guide at http://www.knfilters.com/appinq.htm for update.
here is my question (s). would somebody please tell me what is so different about the 4.7 that some fairly common add-on's dont work. for example....exhaust robbing low end power. also, if k&n says their FIPK doesnt "meet their standards" how come other brands work? im mostly confused as to the touchiness of this engine...... thanks for the time
Mills
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joe
Dodge Dakota
12/12/2001
21:09:32
|  RE: k & n FIPK 4.7
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Message:
It must have something to do with the engine being ohc instead of a pushrod. I have seen other posts where the people have said that it is easier to modify the 5.9 v8. (pushrod)
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Mills
Dodge Dakota
12/12/2001
21:15:59
| RE: k & n FIPK 4.7
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Message:
ok....i know ohc is over-head cam.....the pushrod thing though....total mystery. for the uninitiated.....what does this all mean?
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joe
Dodge Dakota
12/12/2001
21:27:28
| RE: k & n FIPK 4.7
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Message:
here is a web site that should help. www.autoshop-online.com/auto101/eng.html scroll down to the explanation about engines.
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Mills
Dodge Dakota
12/12/2001
22:20:14
| RE: k & n FIPK 4.7
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Message:
ok....got the ohc thing down. actually, i did know that....i just "out-thunk" myself. but im still curious....why does this setup get affected by mods that rob it of backpressure. how does lacking pushrods cause this?
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Demon-Xanth
Dodge Dakota
12/13/2001
09:22:54
| RE: k & n FIPK 4.7
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Message:
My guess is that the 4.7 is tuned in too perfect for some mods to work well. A muffler along will lose power, however a muffler and a throttlebody will gain. An engine is always happiest when it's matched up and only swapping one component will skew it's matching.
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