Engine, Intake, Exhaust Modifications to your Normally Aspirated Hyundai engine. Cold Air Intakes, Spark Plugs/wires, Cat back Exhaust...etc.

cai with flexible hosing (questions)

Old Nov 30, 2001 | 04:51 AM
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Default cai with flexible hosing (questions)

three questions.

1. won't the ribs restrict the air flow in the cai?

2. the exhaust tubing used, is it the same stuff home depoe sells? they sell aluminum exhaust tubing, for household applications. is this the same stuff random and other guys are using? if not what exactly are they using.

3. 2.5" or 3" what do you think would be better?
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Old Nov 30, 2001 | 05:14 AM
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[QUOTE]Originally posted by tibby:

1. won't the ribs restrict the air flow in the cai?

i dont know, but if it does sad.gif. i have a weapon r CAI sad.gif.
Im not sure if it restricts, but you should try to avoid it.

2. the exhaust tubing used, is it the same stuff home depoe sells? they sell aluminum exhaust tubing, for household applications. is this the same stuff random and other guys are using? if not what exactly are they using.

Random doesnt use a flex, hes krazy. Hes smart, he made his intake with stock tubing. I suppose you could use home depot tubing. Its cheap and it will do the trick and i have heard of some people doing this.

3. 2.5" or 3" what do you think would be better?
if your throttle body and intake manifold are bored out, then you will benefit from the 3".
but just for the hell of it, get the 3"

[ November 30, 2001: Message edited by: JAWS 021 ]
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Old Nov 30, 2001 | 08:18 AM
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My intake is made with Flexable exhaust tubing, and yes, it is MUCH different that the stuff they sell at home depot.

The Flexable tubing I use is meant for automotive exhaust use. This means it can withstand high pressure and high heat. Most hardware store crap is cheap thin tin/aluminim foil wrapped around a wire. The true automotive exhaust tubing is much thicker, much stiffer, much harder to bend, and overall much SMOOTHER, than hardware store tubing.

The spirals in the tubing DUE disrupt air flow, but in a good way as far as I can tell. In my air flow test, the flexable tubing flows more air (as read by the MAF) than smooth bore tubing of the same diameter.
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Old Dec 1, 2001 | 06:06 AM
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i used the same tubing as random. it does work very well. i just used 2.5 but this is on my accent. where the hell did you make up that story about how random is crazy and he made his out of stock tubing? WTF?
get the galvanized or stainless steel tubing to prevent rust.
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