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I'm in the market for a new exhaust for my 1.6 car. I'm looking for unbiased opinions. Is the SD exhaust still the hot set-up?
Thanks in advance,
Denny
1.6 exhaust question
Started by
dmathias
, 07-08-2011 09:45 AM
#1
Posted 07-08-2011 09:45 AM
dmathias
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#2
Posted 07-08-2011 11:23 AM
Qik Nip
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Denny:
Interesting question. A couple of years ago, the SD exhaust system was a very active topic hereabout. Since then, nary a thread dealing with it (or any other exhaust system! As for me, I have an SD and it didn't dyno better numbers that the old MS system I'd had. I supect, the limiting effect of most NA exhaust manifiolds and downpipes trump the upsteam plumbing.
Rick
Interesting question. A couple of years ago, the SD exhaust system was a very active topic hereabout. Since then, nary a thread dealing with it (or any other exhaust system! As for me, I have an SD and it didn't dyno better numbers that the old MS system I'd had. I supect, the limiting effect of most NA exhaust manifiolds and downpipes trump the upsteam plumbing.
Rick
2009, 2010 & 2011 SCCA Great Lakes Div. Reg. SM Champ
2006, 2009, 2010 & 2011 Cincy SCCA Reg. Driver of the year
Powered by: Stewart Engines
Set up by: RAFT Motorsports
SM: The safest race car in the world. It can just
barely kill you.
#3
Posted 07-08-2011 12:13 PM
Alberto
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fwiw, I just had a custom exhaust made by my local race fab shop - TC Design.
http://blog.miatarac...ot-exhaust.html
That said, most people swear by the SD exhaust and it is the one that everybody runs.
http://blog.miatarac...ot-exhaust.html
That said, most people swear by the SD exhaust and it is the one that everybody runs.
#4
Posted 07-08-2011 12:57 PM
dmq
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Does anyone still run the JD setup? I have an old custom exhaust that is similar to the JD setup. Its kinda rusty inside and needs to be replaced soon. I just blew up my motor, figured I'd go ahead and do a new exhaust at the same time I swap the motor. (if anyone has a spare motor to sell send me a pm) I was planning to build a new JD exhaust just to save some $$$. How does the JD compare to the SD?
#5
Posted 07-08-2011 01:06 PM
red986s
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Okay for those of us not in the know: SD?, MS?, JD?
For what it's worth, I have a custom exhaust from JPM (Jesse Prather Motorsports). It's the cats azz!!
For what it's worth, I have a custom exhaust from JPM (Jesse Prather Motorsports). It's the cats azz!!
#6
Posted 07-08-2011 01:19 PM
dmq
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JD system is a homemade setup that cost about $90 using a dynomax muffler.
SD is Springfield Dyno.
don't know about MS.
SD is Springfield Dyno.
don't know about MS.
#7
Posted 07-08-2011 01:37 PM
Bench Racer
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Different strokes for different folks : )
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JD system is a homemade setup that cost about $90 using a dynomax muffler.
SD is Springfield Dyno.
don't know about MS.
I will presume JD is Jim Daniels. If it said JD2 that would be Jim Drago.
MS is MazdaSpeed as in Mazda Motor Sports.
#8
Posted 07-08-2011 01:47 PM
JayF
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I got an SD for mine. Yup they do still fit like crap and require some welding and cutting of the flange.
-- Jay --
96 Spec Miata - Build in progress
North East SCCA
96 Spec Miata - Build in progress
North East SCCA
#9
Posted 07-08-2011 02:27 PM
dstevens
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A good DIY is a Magnaflow 10425, about $70 online...
http://www.magnaflow...artnumber=10425
That's the 2 1/4" but there is also a 2 3/8" but I don't have the part number handy.
A selling point for the SD is that the tubing is mandrel bent, not crush bent like at the local muffler shop. Guys like this sell prefab mandrel bent parts. http://www.mandrelex...bing/Categories
The difference in fabrication is a mandrel is inserted into the tubing to support the walls during the bend, resulting in a smoother bend with a consistent ID resulting in less turbulence in the exhaust gas.
http://www.magnaflow...artnumber=10425
That's the 2 1/4" but there is also a 2 3/8" but I don't have the part number handy.
A selling point for the SD is that the tubing is mandrel bent, not crush bent like at the local muffler shop. Guys like this sell prefab mandrel bent parts. http://www.mandrelex...bing/Categories
The difference in fabrication is a mandrel is inserted into the tubing to support the walls during the bend, resulting in a smoother bend with a consistent ID resulting in less turbulence in the exhaust gas.
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