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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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12-01-2008, 12:13 PM | #16 |
Rotary Fanatic
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I wasn't talking about auto cross. Auto cross has stupid rules and very little track time .
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12-08-2008, 06:18 PM | #18 |
Rotary Fan in Training
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For the money, Racing Beat RoadRace full exhaust.
It is a heavy unit tho, you can get some custom made with Titanium and with every custom build exhaust I recommend flex pipe built into the system esp for turbo's to avoid problems later like cracked hot side of turbo and helps the exhaust from getting leaks at the gaskets.
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12-10-2008, 12:57 PM | #19 |
Evil Club Mod
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ISC makes a header that the ITS guys swear by.
There are many more NA Road track cars than there are turbo's, for the simple fact that the RX-7's are classed very competitively in those classes then only allow limited modifications. |
12-10-2008, 02:55 PM | #20 |
Rotary Fanatic
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A collected header is best for a rotary engine.
I was planning on using the ISC headers when i go peripheral port, ii'm glad people hear good things about them.
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My car blows up everytime I start it, it's rotary |
12-10-2008, 02:57 PM | #21 |
Respecognize!
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As far as something for a stock port engine goes that doesn't cost 500 or more, is there many choices? I am half tempted to just make my own. I have a welder, might as well use it.
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12-10-2008, 04:12 PM | #22 |
Slow
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The streetable Racing Beat header isn't that bad. I was making 155-160whp with a stock ~180k mile S4. You're going to find the best options from a racing team who sells their headers, but you're going to pay for their R&D. Or you could get the Racing Beat road race header and make a collector shortly after the flange, but expect to make a few before you get it "right".
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12-10-2008, 04:14 PM | #23 |
Respecognize!
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looked a little, the ISC is only 350 and is stainless which is on par with Racing beat.
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12-10-2008, 04:56 PM | #24 |
Slow
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From the pictures and what people have said, the ISC header is a better design as it hruns several inches from the port before the first bend. You could save ~$100 and get the non-stainless road race header from Racing Beat but it will not last as long.
I ended up going with the ISC stainless header rather than trying to save a few bucks. |
12-10-2008, 04:58 PM | #25 |
Respecognize!
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Whats your thoughts on it
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12-10-2008, 05:41 PM | #28 |
Respecognize!
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i've read his stuff a number of times, but seems to be a lot of hear say floating around. Ill look into it if he ever puts a chart or even a price.
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12-10-2008, 07:59 PM | #30 |
Rotary Fan in Training
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Do you have the link to the ISC header? I tried google searching it but got nothing. (Or I am blind...)
N/M Found it. http://iscracing.net/2nd_Gen_Parts.htm |