 Tangerine Evolution, or at least some reference of changes |
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| G e o r g e |
 Apr 9 2008, 02:03 PM
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#1
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Dr  Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None 
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Chris
What are the differences between this exhaust and your current setup Attached image(s) 
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| Jake Raby |
Apr 9 2008, 02:36 PM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
I see at least 4...
They are significant too.... Chris can explain! We have done LOTS of tuning on the system in the past couple of years. |
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| ericread |
Apr 9 2008, 02:42 PM
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#3
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
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| ChrisFoley |
Apr 9 2008, 04:28 PM
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#4
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I am Tangerine Racing Group: Members Posts: 7,928 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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The system shown is my first generation product. The design comes from Garretson in CA, was first produced in the '80s, and is intended for engines operating up to 8000 rpm.
I struggled with the difficulties of making the primaries equal length, and as short as the engineering criteria provided to me specified. The breakthrough came when I redesigned the collectors to a splayed inlet instead of a parallel inlet, which allowed me to get all 4 primaries within 1/2" of the design parameters. I have been told by a PhD aerospace engineer that my collectors are probably more efficient as well. At the same time as I reconfigured the header I came up with a single muffler for street applications that incorporates sound reduction features of both the silencers shown. The new silencer exits in the stock location instead of the opposite side, and the EVO II silencers are 100% stainless instead of a mix of mild and stainless steels. The Phase 9 and Quiet Can shown are coated with the same high temp product as the header to make up for the non-stainless composition. Recently I made upgrades to the stub pipes in an effort to reduce the likelihood of cracks forming in the tube around the mounting tabs. The stubs shown are made of T304 stainless tubing with mild steel tabs. My new stubs are T321 high temp stainless with T304 mounting tabs. The shape of the tabs is also changed slightly. They now have a slot instead of a hole so the stubs can be more precisely aligned with the exhaust port on the head and bent studs are less of a problem for mounting. The latest change I made is the introduction of a street length header after Jake's dyno research indicated that longer primaries would be better on engines with peak power below 6500 rpm. I now offer both race length and street length headers. The primaries are 3+ inches longer on the street header. The Super Header shown is capable of supporting the same general displacement and engine output as my 1 5/8" EVO header. The EVO header will provide higher peak power due to more precisely controlled primary lengths, but the difference is not as dramatic as the difference from other commonly available exhaust systems. The replacement cost for that header, with heat exchanger, is $2390. It is a steal at anything less than $1800. |
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| G e o r g e |
Apr 9 2008, 06:28 PM
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#5
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None
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Thanks for the info Chris
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| jasons |
Apr 9 2008, 06:36 PM
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#6
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
Were you the winner of that bird board deal?
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| G e o r g e |
Apr 9 2008, 06:40 PM
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#7
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None
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(IMG:style_emoticons/default/hide.gif) who me? (IMG:style_emoticons/default/hide.gif)
where you the guy trying to snipe it out from beneath me (IMG:style_emoticons/default/biggrin.gif) |
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| jasons |
Apr 9 2008, 07:12 PM
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#8
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
QUOTE(George H. @ Apr 9 2008, 05:40 PM)  (IMG:style_emoticons/default/hide.gif) who me? (IMG:style_emoticons/default/hide.gif) where you the guy trying to snipe it out from beneath me (IMG:style_emoticons/default/biggrin.gif) Well, I was the first person to reply to the thread. I guess my reply was too late. Just as well, I didn't need to spend the money. That was a GREAT deal. |
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| G e o r g e |
Apr 9 2008, 07:23 PM
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#9
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None
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(IMG:style_emoticons/default/hijacked.gif)
QUOTE(jasons @ Apr 9 2008, 06:12 PM) QUOTE(George H. @ Apr 9 2008, 05:40 PM) (IMG:style_emoticons/default/hide.gif) who me? (IMG:style_emoticons/default/hide.gif) where you the guy trying to snipe it out from beneath me (IMG:style_emoticons/default/biggrin.gif) Well, I was the first person to reply to the thread. I guess my reply was too late. Just as well, I didn't need to spend the money. That was a GREAT deal. I had emailed him the night before you posted to his thread (IMG:style_emoticons/default/happy11.gif) |
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| jasons |
Apr 9 2008, 07:34 PM
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#10
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
QUOTE(George H. @ Apr 9 2008, 06:23 PM) (IMG:style_emoticons/default/hijacked.gif) QUOTE(jasons @ Apr 9 2008, 06:12 PM) QUOTE(George H. @ Apr 9 2008, 05:40 PM) (IMG:style_emoticons/default/hide.gif) who me? (IMG:style_emoticons/default/hide.gif) where you the guy trying to snipe it out from beneath me (IMG:style_emoticons/default/biggrin.gif) Well, I was the first person to reply to the thread. I guess my reply was too late. Just as well, I didn't need to spend the money. That was a GREAT deal. I had emailed him the night before you posted to his thread (IMG:style_emoticons/default/happy11.gif) Congrats! When I posted, I figured I was already too late. |
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| Mark Henry |
Apr 9 2008, 08:09 PM
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#11
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(George H. @ Apr 9 2008, 08:40 PM) (IMG:style_emoticons/default/hide.gif) who me? (IMG:style_emoticons/default/hide.gif) where you the guy trying to snipe it out from beneath me (IMG:style_emoticons/default/biggrin.gif) That would be me.... |
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| G e o r g e |
Apr 9 2008, 08:20 PM
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#12
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Dr Group: Members Posts: 1,905 Joined: 20-September 05 From: Southern Cal Member No.: 4,832 Region Association: None
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Fair enough
You get a pass because of your last name (IMG:style_emoticons/default/beerchug.gif) ups says it's on my porch as we speak |
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