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2 cut-outs at the collectors??????????????

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Old Dec 23, 2003 | 10:09 PM
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Default 2 cut-outs at the collectors??????????????

What gains would I see if I installed 2 electric cut-outs where my RT cats are, basically immediately after my collectors? And yes, while they're open

Thank ya.
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Old Dec 23, 2003 | 10:33 PM
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where your collectors are? on yoru ypipe or headers? might be a stupid question but im a little unclear on what you said
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Old Dec 23, 2003 | 11:04 PM
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Being that you are running cats even though they are gutted i would say you could probably pick up anywhere between 10-15rwhp. There was a guy a while back that posted dyno comparisons between the dual cutouts and his full exhaust. I don't recall what catback he had but he did have cats and if i remember correctly i beleive he gained about 20rwhp and this was on a H/C car. If you do go with the cutouts they need to be about 12-15in. behind the collectors for best results.
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Old Dec 23, 2003 | 11:05 PM
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Originally Posted by WS6FirebirdTA00
where your collectors are? on yoru ypipe or headers? might be a stupid question but im a little unclear on what you said
My RT cats are about 3-inches from the tips of my collectors. What if the cut-outs were right there, one cut-out on each side. Basically like open headers I guess.
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Old Dec 23, 2003 | 11:13 PM
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u dont wanna run open headers, i think i should have 18" of pipe between the collector and the outlet for the sake of the o2's. if u run open headers for a long period of time i think u can cause vavle troubles too
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Old Dec 23, 2003 | 11:30 PM
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Originally Posted by WS6FirebirdTA00
u dont wanna run open headers, i think i should have 18" of pipe between the collector and the outlet for the sake of the o2's. if u run open headers for a long period of time i think u can cause vavle troubles too
The first set of 02's are in the header itself and my second set after the cats aren't even being used.

What would happen if they were just opened for a race and then shut right after?

Gains HP-wise?
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Old Dec 23, 2003 | 11:35 PM
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if they were open for a race tahts ok. just dont do it for a while. gains, well depends really. but tahts the highest flow u will ever get
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Old Dec 24, 2003 | 07:21 PM
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I would think on your super stroker setup you should see almost 20 hp. I thinks you should do it!!
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Old Dec 24, 2003 | 08:44 PM
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yeah lol
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Old Dec 29, 2003 | 11:19 AM
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Originally Posted by Got Me SOM
I would think on your super stroker setup you should see almost 20 hp. I thinks you should do it!!

Its definitely worth the money to do it for 20 RWHP. Maybe I'll do it than.
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Old Dec 29, 2003 | 01:39 PM
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This might help you. It is a link to my setup with results..

https://ls1tech.com/forums/showthrea...ighlight=tr236
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Old Dec 30, 2003 | 01:19 AM
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i know this is a stupid question, but im thinkin of doin the same thing, where, and what exactly are the collectors?
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Old Dec 30, 2003 | 06:14 AM
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collectors on the headers are right were the 4 headers tubes come together and there is a 3rd collector right where the 2 pipes come together on the ypipe
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