Air intake question.... - BMW M5 Forum and M6 Forums
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post #1 of 6 Old 20th June 2002, 03:21 PM Thread Starter
325iBimmer
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Air intake question....

Here goes...I've recently installed a K&N intake cone type without a heat shield. Well, does having a heat shield make that much of a difference when it comes to gaining horse power? Wouldn't the car pull in cold air anyways since you're driving? While it's in motion I mean. I also zip tied aside the probe thingy that was originally plugged into the factory intake box. Is that alright or will that cause any problems down the road? Just wanna check with you guys before bad things starts happening. Thanks for reading.
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post #2 of 6 Old 23rd June 2002, 12:19 AM
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post #3 of 6 Old 26th June 2002, 06:16 PM
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The heat shield does make a big difference as you would still pull in more heated air without the shield. I can't remember the exact numbers but its like horsepower per every 10 degrees, or something like that.

Paul
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post #4 of 6 Old 26th June 2002, 06:57 PM
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the engine would benefit by a heat sheild, or better still, a duct from the front grille, so you can garauntee some cold air being drawn in. I've heard that just putting on a cone filter does nothing for engine output, as it draws in hot air. But a lot of companies now produce a duct that goes with the filter that effectively cures the problem. A better (so it's said) option is to replace the std element with a K&N equivalent.
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post #5 of 6 Old 27th June 2002, 06:30 PM Thread Starter
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Thanks for the input guys. As far as the intake is concern I've custom fitted a 3" intake pipe to the K&N so that the cone reaches the stock intake box inlet which is next to the left headlight housing. Hope it'll help draw in more colder air.
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post #6 of 6 Old 9th July 2002, 09:28 PM
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325iBimmer,
When you use a cone filter without a heat shield, air goes to the filter is affected by the fan and the filter socks up the hot air in the engine bay so you decrease the power of your car.
You better use a custom made heat shield or buy one from ECIS at the cheapest or just put your old fılter box and feed some air to box from fog light or brake duct.

ONUR
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Last edited by pride355; 9th July 2002 at 09:29 PM.
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