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Replacing Air Bridge and Bellows???

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Old Mar 1, 2005 | 09:35 PM
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Default Replacing Air Bridge and Bellows???

Is there any noticeable HP and/or torque gain to be seen by using an aftermarket air bridge and bellows (the tube that connects the air bridge to the throttle body)? Many of the vendors who sell these parts claim that they will add horsepower over the stock pieces. Is this the case or are these parts simply "eye candy"?

Thanks in advance.

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Old Mar 1, 2005 | 09:51 PM
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Don't waste your money if you are looking for more HP. If you are doing it for looks go ahead and buy them. As you said they are just "eye candy".

Last edited by Mitch C; Mar 1, 2005 at 09:54 PM.
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Old Mar 2, 2005 | 01:40 AM
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Originally Posted by Mitch C
Don't waste your money if you are looking for more HP. If you are doing it for looks go ahead and buy them. As you said they are just "eye candy".
Huge waste of money but they do look good.
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Old Mar 2, 2005 | 01:41 AM
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Originally Posted by Mitch C
Don't waste your money if you are looking for more HP. If you are doing it for looks go ahead and buy them. As you said they are just "eye candy".
Thanks for the info Mitch! I love how some vendors claim that replacing the air bridge will give you 5+ horsepower. If they could prove this via a dyno sheet I might spend the $150+ and pick one up. Although there is something to say for making one's engine look prettier...but $150??? I think I will save the money and put it toward a good set of heads.
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Old Mar 2, 2005 | 01:56 AM
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Originally Posted by Korreck
Huge waste of money but they do look good.
Korreck, thank you as well....you just chimed in as I was responding to Mitch's post.

You know, I would probably go broke trying to sell performance auto parts as I just couldn't embelish the functionality of a product like this. I could just picture this in my online store....

C5 LS1/Z06 Air Bridge

This custom air bridge will really dress up the engine compartment
of your C5 but won't give you sh^t as far as performance
goes....only $205.99. (Supplies are limited).


Last edited by Jiver67; Mar 2, 2005 at 01:59 AM.
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Old Mar 2, 2005 | 02:53 AM
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Originally Posted by Jiver67
Korreck, thank you as well....you just chimed in as I was responding to Mitch's post.

You know, I would probably go broke trying to sell performance auto parts as I just couldn't embelish the functionality of a product like this. I could just picture this in my online store....

C5 LS1/Z06 Air Bridge

This custom air bridge will really dress up the engine compartment
of your C5 but won't give you sh^t as far as performance
goes....only $205.99. (Supplies are limited).

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Old Mar 2, 2005 | 03:18 AM
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Originally Posted by Jiver67
Is there any noticeable HP and/or torque gain to be seen by using an aftermarket air bridge and bellows .....Many of the vendors who sell these parts claim that they will add horsepower over the stock pieces. Is this the case or are these parts simply "eye candy"?
I had bought a nice carbon fiber airbridge and my tuner suggested to ditch it... those stock pieces are not the restricting factor in the LS1 intake... but that CF airbrige was purrteeeee!
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Old Mar 2, 2005 | 08:25 AM
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I did it, fully expecting that 5 hp to be all but invisible. It was, I didn't feel a thing. Come on, 5 hp out of 350-400 hp? You'd have to have an extremely accurate butt dyno to feel that!
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Old Mar 2, 2005 | 09:01 AM
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Keep an eye on the CF bridge, long term the CF tends to dry out from the radiator heat. It then becomes brittle and cracks. The cracks cause air leaks and to some it causes idle issues and surging on decel. If you just drive for show, it is not usually a problem, but it you DE or autocross, it will show up.
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Old Mar 2, 2005 | 09:13 AM
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Thats why I bought the plastic setup fro Zip products. Looks pretty, didn't really care about HP gains, won't dry out, and it was a little over a $100.00 with a red coupler, all the hardware and a z06 badge. The badge alone runs for 21.00 in MA.

Originally Posted by Gordy M
Keep an eye on the CF bridge, long term the CF tends to dry out from the radiator heat. It then becomes brittle and cracks. The cracks cause air leaks and to some it causes idle issues and surging on decel. If you just drive for show, it is not usually a problem, but it you DE or autocross, it will show up.
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Old Mar 2, 2005 | 09:41 AM
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I (and c4c5specialist) did enough comparisons on a dyno with different intake combinations, including the "smooth connector" vs. the bellows and a BPP air bridge.

No hp gains, and the car ran actually performed better with the stock bridge and connector. Don't waste your money.

Oh, plus the the workmanship on the BPP air bridge was awful.
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Old Mar 2, 2005 | 09:50 AM
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Get a Halltech Stinger. It has a pretty Airbridge and Coupler, plus it adds 20HP

[IMG][/IMG]
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Old Mar 2, 2005 | 08:10 PM
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Originally Posted by Gordy M
Keep an eye on the CF bridge, long term the CF tends to dry out from the radiator heat. It then becomes brittle and cracks. The cracks cause air leaks and to some it causes idle issues and surging on decel. If you just drive for show, it is not usually a problem, but it you DE or autocross, it will show up.
It's not that it dries out. It should be fully dry as soon as it's done being made. Brittle is just the way carbon fiber is. In the air bridge application, it's being forced to hold up the air filter. If it cracks, it's because of two reasons:
1. It was never strong enough in the first place, so they should either make it thicker, use a stronger resin, or process it better.
2. The resin isn't capable of handling the heat, and it's basically evaporating.

Let's also not forget that the air bridge is porous, even when brand new. When carbon fiber is used as a tank, it's used with a liner, usually steel, to keep the substances inside, and to prevent it from weakening the structure. Anyway, I could go all day. When it comes down to it, the carbon fiber air bridge you used was made or designed poorly. Not saying it isn't purty, but it should not have failed in the application you used it for.
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