Dual exhaust tips for a 2.0 /4 ?, ..like on a GT or -6 |
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Dual exhaust tips for a 2.0 /4 ?, ..like on a GT or -6 |
Literati914 |
May 22 2018, 11:48 PM
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#1
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Senior Member Group: Members Posts: 1,443 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
With a 2.0 /4 ... Is there any options for getting the look (without sacrificing performance) of the dual exhaust like you see on the factory /6 and in particular the factory GT cars? I thought Dansk had an offering for this, but can not locate it now. Basically I'm after the look of separated tips coming straight out, but not really close together (like boxster, etc). Don't need chrome tips.
I'm always confused why you see the 1.7s with dual tip ansa mufflers (I don't want duals on both side for my 2.0) , but the 2.0L cars always get a single tip. Also, I see there are some "GT" style mufflers for /6 cars... but then there are size differences amongst the /6s, could none of them be used on a 2056cc type IV based on a stock 2L ? Any other options? |
Literati914 |
May 24 2018, 09:20 PM
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#2
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Senior Member Group: Members Posts: 1,443 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
Thanks everyone for weighing in.. think I'll just try and get a stock 2.0 dansk 'banana' muffler and do the typical early 911 muffler to sport muffler conversion procedure. It's more the simple GT look I'm after.
In regards to what I asked earlier... I'm accepting that a /6 muffler on a /4 is no good, even though the displacement is the same (though I have no idea what magic inside would make that so), BUT what about a 1.7/1.8 muffler on a 2.0 if using the appropriate HE's ? Any obvious drawbacks with doing that? Just trying to get options straight. thanks. |
Dave_Darling |
May 24 2018, 10:17 PM
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#3
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
(though I have no idea what magic inside would make that so) The Six has three cylinders per side, with evenly spaced firing. The exhaust pulses arrive in a nice steady train, so if you combine those three into a single pipe a given distance from the exhaust port they will flow steadily. The four-cylinder engine has two cylinders on each side, with very uneven firing. You get both of those cylinders firing, then nothing for half an engine cycle, then both firing again. Combine those two into a single pipe, and you're going to have very uneven flow. Note that the stock -4 heat exchangers do not combine the two pipes at all; they remain separate all the way into the muffler! For the Six muffler, you want to take the single pipe for each side and combine it at some point with the single pipe from the other side. For the Four mufflers, you would more likely be combining all four pipes at the same point--or if there is room, combine cylinders across from each other then combine those into a single flow. QUOTE BUT what about a 1.7/1.8 muffler on a 2.0 if using the appropriate HE's ? Any obvious drawbacks with doing that? That works fine. You need to make sure the HEs, muffler, and muffler hanger all match. But they bolt up to any of the 914-4 motors and work about the same. Very likely better than any of the 75-76 exhaust; probably a very little less good on a 2.0 than the 73-74 2.0 exhaust. --DD |
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