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Discussion Starter #1
I'm thinking of having an exhaust shop make my upper IC pipes from the IC to the throttle body. The question is that whether the metal piping (exhaust piping) is good or bad to use as IC pipes?

Is it too heavy?

It's going to rust?
 
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Bad idea in my opinion. Crush bends = shitty flow. Depends on what matter to you: money or performance.
 

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weld the ic pipes together using mandrel bends. Expand one end of the pipe, slide the other pipe in and weld, easy as pie. As for rust, coat/paint the outsides. dont need to worry about the insides as blowby oil will coat the pipes and inhibit any rust formation.

adam
 

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What kind of bends would you need for the upper pipe? Do you just buy the bends and then tell the shop to weld straight piping in between and you got yourself a new upper IC pipe or what?
 

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The metal piping at the exhuast shop is not ideal. It is an aluminized pipe (aka galvanized) that is designed to prevent rust. Although rust in your IC is a bad idea, aluminizing causes the weight to go up and is much more difficult to weld and cut. Look under a car at this shop before you consider putting their work on the top side under your hood.

While I'm sure the muffler shop will serve the purpose and most likely be better than the stock piping, consider other similarly priced option. In fact, last I checked you could buy prebent and straight aluminum off of ebay at nearly the same $/foot the local muffler shop will charge you for aluminized steel.

The aluminum is so much easier to work with that you could get a $3 hacksaw at Home Depot and spend a saturday cuting the pipe to fit the car. Now all you need is a person excellent with a MIG or good with a TIG.

This may be a bigger job than your interested in taking on, but I think you'd be happier in the long run. I've been through the aluminum and TIG before. PM if you need more details.
 

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you need like 1 180 bend and a couple feet of pipe. go in and do it with the exhaust guy, that way you get what you want. As for me, i had a 2.5" upper pipe made (with hks bov flange welded on) for all of 85 bucks canadaian. Not bad if you ask me.
 

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Unless you're making serious numbers, crush bent IC pipes will not inhibit performance in any noticeable way. Whereas exhaust needs to flow through the system as quickly as possible (making mandrel ideal), IC pipes are just pressurized, meaning that the flow of the air through it is so quick already, that crush bent will work fine. The reason we do metal IC pipes is not cause of their shape, but because they do not expand. As long as they are metal you are gaining the full benefit of doing metal IC pipes.
 

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how much for those? what about if you have like an HKS bov?
 

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Spoolme said:
how much for those? what about if you have like an HKS bov?
COOLEEZE Full IC Pipe Kit
$449.95

You can choose what kind of BOV, where you want the BOV to be, color, treatment, and coupler color ;)
 

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Discussion Starter #14
man. i guess i'll just wait till ssautochrome to come out with a 7m intercooler kit for $400 lol.
 

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think ill just make my own. hope that cooleze come with a BOV for that much holy shiznit.
 

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I have a pair of upper IC pipes that I made for sale:




I usually use exhaust piping. It works fine but the only drawback is weight. I used aluminized steel. If you use mild steel it will rust like crazy. Whatever you get, just paint it for protection.
 

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heard about a rather interesting idea last year at tx2k4....

we were at the dyno and talking to some of the people there. last year we were at an ls/corvette/camero shop and they had a nice pile of pipe in the back. so we go to talking with one of the supra guys there and he remarked how nice the bends were and how he used the stock pipe from a z28 as it was 2.5in (iirc)to make his ic pipe. he ended up doing very respectable but i cant remember the power exactly. was a red car with all sorts of vents cut in the hood, was asian.... still theres gotta be alot of nice stock mandrel bends out there behind shops....
 

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Discussion Starter #18
Spoolme said:
think ill just make my own. hope that cooleze come with a BOV for that much holy shiznit.
ya..hopefully ssautochrome will come out with a brand new IC kit which includes an intercooler for $400 eh eh?
 

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I PMed you Slimfast!!!
 

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Homemade stainless pipes...obviously I don't care how heavy they are... but all things considered, they aren't that much heavier than al pipes...plus they don't heat up very fast.
 
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