2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

Big Bore Throttle Body?

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Old 04-24-2006, 10:52 PM
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Big Bore Throttle Body?

So... Saturn Motorsports is making Big Bore throttle bodies for the 2.4's... they're like $325... but if you return your stock T/B you get $200 back.

Looks like this is gonna be my next mod...
Old 04-25-2006, 12:53 AM
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thats not a bad deal, will it make any differences?
Old 04-25-2006, 02:56 AM
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Question

Are they making big bore TB's or are they boring out stock TB's?? I would want more than just a bored out stock unit. There is already one out that's a bored out stock unit, has a red butterfly (throttle blade).

How big are these?? Do you have a link for us??
Old 04-25-2006, 03:02 AM
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I wonder if it is the same as the one for the 2.0. ExHondaMan did a how to/review on the 2.0 bored TB a while back. He said it wasn't much larger than stock. Here is the link with pics.

https://www.cobaltss.net/forums//showthread.php?t=6527
Old 04-25-2006, 05:15 AM
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Yeah i'm curious at what kind of size increase were gonna see.
Old 04-25-2006, 08:28 AM
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Yeah... looks like the same thing that ExHondaMan did... but I think that for $125-$150 it's a good deal.
Old 04-25-2006, 11:39 AM
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Originally Posted by CobaltCoupeCrazy
Are they making big bore TB's or are they boring out stock TB's?? I would want more than just a bored out stock unit. There is already one out that's a bored out stock unit, has a red butterfly (throttle blade).

How big are these?? Do you have a link for us??

You buy it for 3something when you get it and put it on you mail them your stock one and they send you back 200bucks or whatever it is.
Old 04-25-2006, 12:31 PM
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It wont work on the 2.2l though, will it?
Old 04-25-2006, 01:01 PM
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As the 2.2 and 2.4 are externally identical... it should work fine... I think they have one specificly with a part number for the 2.2 though.

check saturnmotorsports.com
Old 04-25-2006, 03:47 PM
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i heard that we dont need throttle bodies
Old 04-25-2006, 06:06 PM
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Originally Posted by FRIARPOP
i heard that we dont need throttle bodies
Can you explain?

A bigger throttle body certainly won't hurt anything... should give us improved throttle responce.

Why don't we need it? Who'd you hear that from?
Old 04-25-2006, 06:08 PM
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you don't necessarily <sp> need a larger overall bore, but one that has been opened up at the mouth to increase velocity can definitely help you out.
Old 04-25-2006, 06:13 PM
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From what i recall one main advantage to get your T/B borded out is more torque though the downside is you will burn more fuel.

Is it worth it?? Up to you...

Fidget future cobalt ss/sc owner
Old 04-27-2006, 09:56 AM
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Originally Posted by SilverStreak
As the 2.2 and 2.4 are externally identical... it should work fine... I think they have one specificly with a part number for the 2.2 though.

check saturnmotorsports.com
I believe the 2.4L TB is throttle by wire where the 2.2L TB is not which would make them very different from each other.
Old 04-27-2006, 11:22 AM
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Originally Posted by brentil
I believe the 2.4L TB is throttle by wire where the 2.2L TB is not which would make them very different from each other.
on the Cobalts, both the 2.2 and 2.4 should be throttle by wire
Old 04-27-2006, 11:49 AM
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what kinda Hp/Tq gians can bee seen form thebored TB for the 2.0/2.2/2.4 motors???
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