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Old 01-13-2009, 08:08 PM   #1
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Default turbo exhaust manifold

i have a 97 trans am, lt1, im getting it read for turbo, what kind of exhaust manifold do i need to run? would headers be ok?
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Old 01-13-2009, 11:12 PM   #2
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No you would need turbo manifolds.
Kinda hard to find for LT1s.
Unless you wanted to go with a STS turbo system, in that case I would recommend keeping the stock exhuast manifolds.
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Old 01-14-2009, 08:37 PM   #3
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You can run stock manifolds switched around and have a collector made with the turbo up front.

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Old 01-20-2009, 02:25 PM   #4
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I have mocked up 82-92 T3 flanged turbo headers on my 93 Z
They dont clear the steering knuckle
They also will not clear the ABS box and the turbo will be in that corner (DS)
Also the turbo exhaust housing side on the right will be in the battery/battery tray. (PS)

This is on a LT1 Twin Turbo Setup 2 A/R T3's
I can show you a picture of it if you would like to see for a better look
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Old 01-30-2009, 08:38 PM   #5
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I would get you some flanges for the heads and t3 turbo flanges or which ever turbo you decide to go with. Some piping from summit and do a set of custom headers. This was my plan when i was going to twin turbo mine instead of having the procharger.
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Old 01-30-2009, 08:43 PM   #6
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whats the diff between gen 1 headers and lt1? is the exuast ports different?
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Old 01-31-2009, 12:35 PM   #7
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No difference in ports. Its how the tubes come down past the K-member and down. The LS1 engines are when the port spacing changed.
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Old 01-31-2009, 12:41 PM   #8
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Quote:
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No difference in ports. Its how the tubes come down past the K-member and down. The LS1 engines are when the port spacing changed.
I beg to differ, a Gen 1 has different exhaust ports than a Gen II. The LT1 is a D shape, Gen 1s are not. I think.
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Old 01-31-2009, 05:58 PM   #9
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I should Edit my previous post. The LT1 GEN II PORTS are "D" shaped as said above! Standard SBC and LT1 GEN I heads are not "D" shaped. However, The port spacing is the same. So other exhaust manifolds will bolt up. The bolt pattern and port spacing are the same. With the LT1 GEN II heads, If you wish to install an LT1 GEN II engine into a GEN I Camaro (67-69), you can just use your GEN I Exhaust manifolds or headers.
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Old 01-31-2009, 10:49 PM   #10
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Gen 1 heads if i'm not mistaken have round ports
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Old 02-02-2009, 07:03 AM   #11
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yep they are more of a roundish port. But as i pointed out the exhaust bolt pattern and ports line up!
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Old 03-21-2009, 10:50 AM   #12
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Quote:
Originally Posted by lackomotorsports View Post
I have mocked up 82-92 T3 flanged turbo headers on my 93 Z
They dont clear the steering knuckle
They also will not clear the ABS box and the turbo will be in that corner (DS)
Also the turbo exhaust housing side on the right will be in the battery/battery tray. (PS)

This is on a LT1 Twin Turbo Setup 2 A/R T3's
I can show you a picture of it if you would like to see for a better look
I'd like to see some pictures.
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Old 03-21-2009, 07:33 PM   #13
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you may see pictures on my website
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