Test Exhaust for The Great Header Test
12-09-2001, 07:22 PM
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Test Exhaust for The Great Header Test
Here is the SMS cat back for the Great Header Test!
Custom made by Dave @ SMS Products. Here is a description:
This is the full 2-1/2" OD 16g (.065" wall) 304L stainless steel system. It consists of 6 mandrel bent pieces and some straight ones. The resonator is the 22" long body Magnaflow (aluminized steel, since they only offer the stainless one in a 14" long body). The muffler is also Maganflow, their 4" x 9" offset/center version. Since cats used on JDM headers are 2-1/2" ID, the inlet tubing at this B pipe is tapered to have 2-1/2" -2-9/16" ID so there will be no flow obstructions due to a 2-1/2" catalytic converter. I don't know of any other systems that have this feature, although I have not seen the specs on the new HyTech exhaust. I also do a slip jointed flange for the muffler inlet versus a flanged joint somewhere else in the system. This ensures that the joint is perfectly in line when assembled.
Looks pretty nice!
[Modified by TodaSi, 11:33 PM 12/9/2001]
Custom made by Dave @ SMS Products. Here is a description:
This is the full 2-1/2" OD 16g (.065" wall) 304L stainless steel system. It consists of 6 mandrel bent pieces and some straight ones. The resonator is the 22" long body Magnaflow (aluminized steel, since they only offer the stainless one in a 14" long body). The muffler is also Maganflow, their 4" x 9" offset/center version. Since cats used on JDM headers are 2-1/2" ID, the inlet tubing at this B pipe is tapered to have 2-1/2" -2-9/16" ID so there will be no flow obstructions due to a 2-1/2" catalytic converter. I don't know of any other systems that have this feature, although I have not seen the specs on the new HyTech exhaust. I also do a slip jointed flange for the muffler inlet versus a flanged joint somewhere else in the system. This ensures that the joint is perfectly in line when assembled.
Looks pretty nice!
[Modified by TodaSi, 11:33 PM 12/9/2001]
12-09-2001, 07:27 PM
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Re: Test Exhaust for The Great Header Test (FSTASNTZ)
Ahhh, saw the answer in another post, SMS...
Jason
Jason
12-09-2001, 07:32 PM
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Re: Test Exhaust for The Great Header Test (TodaSi)
Thanks Chad.
Specs
This is the full 2-1/2" OD 16g (.065" wall) 304L stainless steel system. It consists of 6 mandrel bent pieces and some straight ones. The resonator is the 22" long body Magnaflow (aluminized steel, since they only offer the stainless one in a 14" long body). The muffler is also Maganflow, their 4" x 9" offset/center version. Since cats used on JDM headers are 2-1/2" ID, the inlet tubing at this B pipe is tapered to have 2-1/2" -2-9/16" ID so there will be no flow obstructions due to a 2-1/2" catalytic converter. I don't know of any other systems that have this feature, although I have not seen the specs on the new HyTech exhaust. I also do a slip jointed flange for the muffler inlet versus a flanged joint somewhere else in the system. This ensures that the joint is perfectly in line when assembled.
Specs
This is the full 2-1/2" OD 16g (.065" wall) 304L stainless steel system. It consists of 6 mandrel bent pieces and some straight ones. The resonator is the 22" long body Magnaflow (aluminized steel, since they only offer the stainless one in a 14" long body). The muffler is also Maganflow, their 4" x 9" offset/center version. Since cats used on JDM headers are 2-1/2" ID, the inlet tubing at this B pipe is tapered to have 2-1/2" -2-9/16" ID so there will be no flow obstructions due to a 2-1/2" catalytic converter. I don't know of any other systems that have this feature, although I have not seen the specs on the new HyTech exhaust. I also do a slip jointed flange for the muffler inlet versus a flanged joint somewhere else in the system. This ensures that the joint is perfectly in line when assembled.
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12-10-2001, 06:48 AM
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Re: Test Exhaust for The Great Header Test (py1188)
Yes, a stock ITR as in no cam gears, VAFC, i.e. engines mods but we are changing the exhaust to 2-1/2" to match all the JDM headers.
Please check out http://www.automotiveperformanceengi...om/header.html
Please check out http://www.automotiveperformanceengi...om/header.html
12-10-2001, 10:27 AM
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Re: Test Exhaust for The Great Header Test (VTEC-MAN95GSR)
Well, it's only got a measly 2-1/2" tip and you don't see alot of the muffler from behind. Maybe will go to 2-3/4" or 3" for the production version, probably 2-3/4".
12-10-2001, 04:45 PM
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Re: Test Exhaust for The Great Header Test (S13SR20DET)
yeah what does that exhaust sound like. It looks great. Perfect stock appearence. I dont have an ITR but oince i get my EG i would be very interested in having on emade if you could.
12-10-2001, 05:38 PM
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Re: Test Exhaust for The Great Header Test (S13SR20DET)
Well the header test is being conducted with a test pipe and I think we'll have some video/audio of the runs so hopefully the quality of the audio will be sufficient to answer your question. Price still to be determined on the bolt on system.
12-10-2001, 06:42 PM
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Re: Test Exhaust for The Great Header Test (hybridb18c)
RStoR's used a shorter 14" resonator, mild steel tubing and (2) 45s versus the second 90 in this system. The mufflers are the same size and configuration but this one has a polished stainless steel body.
1fastgsr, yes I believe there will be a base/totally stock run.
1fastgsr, yes I believe there will be a base/totally stock run.
12-10-2001, 07:19 PM
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Re: Test Exhaust for The Great Header Test (SMSP)
Do the different headers in the test have different audible characteristics? Will we be able to hear any differences during the dyno pulls?
12-11-2001, 05:31 PM
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Re: Test Exhaust for The Great Header Test (SMSP)
Since I base run with stock header, cat and exhaust will be done firts, I think the headers with a 2" collector (Comptech, JG, etc) should be tested first. I don't think Dave is bringing a cat to connect to a header with a 2" collector.
12-11-2001, 05:56 PM
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Re: Test Exhaust for The Great Header Test (1fastGSR)
I've got a Comptech Header which flares out to a 2 1/2" OD that is stock length.
If you folks would like to use it for your tests so there is no need to change the exhaust twice, let me know.
Currently it is on the car, I can easily remove it and ship it to you guys.
Again let me know.
-Nick248
If you folks would like to use it for your tests so there is no need to change the exhaust twice, let me know.
Currently it is on the car, I can easily remove it and ship it to you guys.
Again let me know.
-Nick248
12-11-2001, 06:02 PM
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Re: Test Exhaust for The Great Header Test (Nick248)
Stock length meaning that the 2-1/2" collector ends in the same place as the 2" one did or same length as a JDM header?