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Long tubes vs. shorties

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Old Jul 6, 2007 | 08:28 PM
  #21  
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Default RE: Long tubes vs. shorties

Alright. Sorry about the quality. I'm 41, and my neighbor has my creeper. The copper color thing is the cat.

[IMG]local://upfiles/29576/FA200ABDDA124D04A5C11E65D6A38CF5.jpg[/IMG]

[IMG]local://upfiles/29576/E43C2724C21E42D4A9B94DF5D971D860.jpg[/IMG]

[IMG]local://upfiles/29576/3FC68F8B8A2E4BDC9A778C7F5F4A143D.jpg[/IMG]

[IMG]local://upfiles/29576/F0278C0EB177446FA51F140399FD0465.jpg[/IMG]
 
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Old Jul 6, 2007 | 08:33 PM
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Default RE: Long tubes vs. shorties

BTW, all that flaky rusty crap on top of the frame...Ithink that was caused by either the french horn or its ti-tech finish being to heat conductive.
 
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Old Jul 6, 2007 | 08:46 PM
  #23  
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Default RE: Long tubes vs. shorties

Wow, that is a seriously tight fit, but they do look good. Do the rub anything if your engine moves on the mounts? If you get time to get a few more shots of the y-pipe, i'd be interested in seeing that too. Whenever you have time though.
 
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Old Jul 6, 2007 | 09:04 PM
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Default RE: Long tubes vs. shorties

Well, it's dark now, or I would. I planned my whole evening around watching Ward take the Last Busch race at Daytona, but it's raining like a pig there. It's a tight fit, but the angles are all right for flex and bounce. My biggest concern is that, when the tranny or xfer needs to be replaced, those fittings are gonna be tight and stucklike a bull in a sheep.
 
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Old Jul 6, 2007 | 09:04 PM
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Default RE: Long tubes vs. shorties

Wow, mopowar, great info and pics. Thanks for sharing!
 
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Old Jul 6, 2007 | 10:38 PM
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Default RE: Long tubes vs. shorties

cool. very nice exhaust.
 
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Old Jul 7, 2007 | 05:47 AM
  #27  
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Default RE: Long tubes vs. shorties

The most straightforward way
to get more torque at 2000 rpm
is to raise the compression ratio
and switch to higher octane gasoline.

There are also good 'side effects'
in that fuel economy also goes up with higher CR
and part-throttle response becomes more crisp.

I can repost the backpressure article from Australia
that did its tests on a Ford 5L V8
but David Vizard has a longer and more comprehensive
article about the subject:

http://tinyurl.com/2ntqbf
 
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Old Jul 7, 2007 | 10:08 AM
  #28  
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Default RE: Long tubes vs. shorties

This isa description of the Pacesetters from Krc. I am assuming thatit was a 5.9 that was dyno'd.

1 3/4" primaries, 3" collectors for the 2wd Ram truck. Full ceramic coating inside and out, polished with gaskets and bolts. We gained 33ftlbs of torque on the DTS dyno using them over the 1 5/8" Hookers we use on the Dakotas. These are for the Ram only.
 
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Old Jul 7, 2007 | 11:08 AM
  #29  
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Default RE: Long tubes vs. shorties

ORIGINAL: HankL

The most straightforward way
to get more torque at 2000 rpm
is to raise the compression ratio
and switch to higher octane gasoline.

There are also good 'side effects'
in that fuel economy also goes up with higher CR
and part-throttle response becomes more crisp.

I can repost the backpressure article from Australia
that did its tests on a Ford 5L V8
but David Vizard has a longer and more comprehensive
article about the subject:

http://tinyurl.com/2ntqbf
Is the compression ratio increased by shaving the heads or are there other ways?
My truck really came alive with the Superchips 91 octane setting. I assume that happened because the ignition timing was advanced. So, in general does advancing the ignition timingincrease 2000rpm torque?
 
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Old Jul 7, 2007 | 11:38 AM
  #30  
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Default RE: Long tubes vs. shorties

ORIGINAL: mopowar

This isa description of the Pacesetters from Krc. I am assuming thatit was a 5.9 that was dyno'd.

1 3/4" primaries, 3" collectors for the 2wd Ram truck. Full ceramic coating inside and out, polished with gaskets and bolts. We gained 33ftlbs of torque on the DTS dyno using them over the 1 5/8" Hookers we use on the Dakotas. These are for the Ram only.
Thanks mopwar,
was that 33ftlbs of torqueabove 35000rpm?
 
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