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Dakota Performance
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N56629
Dodge Dakota
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10/11/2005
16:38:09

Subject: RE: home brewed intake
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Waldo, I know you are BSing everyone, but you bring up an interesting point. So-called cold air intakes do very little to reduce the temperature. I'm running an extensive test to see which type setup reduces intake temperature the most. So far the difference is less than twenty degrees from a open air element and a so-called cold air intake system. The temperature is being measured at the IAT sensor location. Too many details to post right now but the test results will be posted eventually.



DSW
Dodge Dakota
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10/11/2005
16:55:36

RE: home brewed intake
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Ahhhh,,, less negetivity,,, me likes it ;-)

I had a WAI until I built a heat shield and turned it into a CAI. There is a HUGE difference between the temps in the engine bay and the filter side of the heat shield. If the engine is running at 190+ degrees and it's 100 degrees outside your looking at a 90 degree temperature difference.

The main problem with CAI's is most the manufacturers making them are are more interested in $$$ than HP. They would rather have your engine sucking in hot air than design a proper CIA,,, one that pulls fresh air from outside the engine bay.


I wonder if Waldo is from the North Pole and removed the rain flap from beside the radiator. This combined with a CIA might explain why his TB keeps freezing up...



zinnmaster
Dodge Dakota
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10/11/2005
17:26:06

RE: home brewed intake
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if you make one properly the filter shouldnt be in the engine bay. mine i installed has the filter tucked behind the bottom valince peice. it is compleatly out of the engine bay. the filter gets dirty faster but i will make a sheild to stop dirt flying directally at the filter. but so k&n filter cleaner cures that problem. the only heat i get is from the tube getting warm from the heat under the hood.



N56629
Dodge Dakota
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10/11/2005
20:07:50

RE: home brewed intake
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DSW, you would think that the intake (manifold, not air intake)temp difference between a good CAI and an open element would equal the difference between the outside air temp and engine bay temp. Unfortuanately that is not the case.

Right now my manifold temp readings are so accurate that I can guess would the outside air temp is with two degrees. I've been amazed at the wide fluctuations in temp at idle and cruise. The biggest difference between air intake systems is at cruise. The difference is far less than you would think. At idle periods of 30 seconds or more the temp difference becomes almost negligible.

Zin is right, no filter mounted in the engine compartment should ever be referred to as a CAI. At best it is a WAI.





beavernuts
Dodge Dakota
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10/12/2005
04:19:00

RE: home brewed intake
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Beat this, I took my sons rusted out swing set, put one of the legs on a bender, made the bends so i could run the opening to come out in front of the front tire, 1 family size tea bag, leave the tea leaves in, and duct taped it over the pipe. dats what you call home brew...3 million extra horse power at the wheels..I change filters when i get thirsty..total cost 2.97 plus tax.



Dakota5.2
Dodge Dakota
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10/14/2005
14:53:07

RE: home brewed intake
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N56629,

Your test sounds interesting. Is there anyway you would be able to cowl induction as well. Please post the numbers. Right now, I'm running a K&N in the standard breather, but have been thinking about using the FIPK style up front on the radiator. Does the tubing style (pipe vs standard bendable platic) affect the temp in anyway.

Thanks,
Dakota5.2



N56629
Dodge Dakota
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10/14/2005
17:21:31

RE: home brewed intake
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Dakota5.2, the test will take quite awhile. I probably won't have some serious numbers until next spring. A coupld of people said that they would loan me their intakes but they are not coming thru. Buying and building each type would take a long time and a lot of money.

The type of intake pipe will make very little (not measurable) difference. Air spends so little time in the tube. Remember, you are flowing anywhere from maybe 50 cfm at idle to 700 cfm at wot. The flow at idle is so little that it probably doesn't matter what kind of system you have.

The biggest advantage to taking in outside air is the "rate" of change in air temp. in the intake manifold. Probably 90% or more of the rise in temp takes place in the intake and not on its way in.

Sorry, I have no plans on doing a cowl induction at this time even though I have a cowl hood. If you or anyone else is really interested in this experiment let me know. I can show you the setup and how I installed the temp probe. The gage is only about $25 and the accuracy is very good.



tank
Dodge Dakota
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10/20/2005
03:54:28

RE: home brewed intake
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do dakotas have an mass air sensor



Android287
GenIII
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10/23/2005
22:50:16

RE: home brewed intake
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The air intake that seemed to worked best for me was actually a K&N drop in and a 3.5" mandrel bent length of pipe. I also took the snorkel off the front of the stock air box.

Nothing flows like a straight pipe

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