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Old March 12th, 2009, 03:05 PM   #21
IDIeselman
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Sorry, that is an old myth that refuses to die, if you need to stop up your exhaust to get it to run right you have other problems.

Put a set of long tubes and some open collectors around 18" long, jet accordingly and I promise it would be faster.
Dyno proven fact! Over and over again, Old myths die hard!
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Old March 21st, 2009, 09:58 AM   #22
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Default 1976 CLEVOR Boss 351w

It is in a 1976 EB and the frame is in the way, It keeps the torque in a lower RPM range, 2000 to 3500
I do not run sand drags in the truck.

Why do drag racers weld the bottom 1/2 of the exhaust ports on C 4V heads? = create some velocity in the exhaust so they build torque
in lower rpm ranges.

[IMG][/IMG]

Bronco for sale or rent

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Old March 24th, 2009, 03:38 AM   #23
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you do not need back pressure if the exhuast need back pressure the stock exhuast would be the best set up! its exhuast gas velocity you need the right size pipe to match up with the HP/TQ numbers. 200hp/200 ftlbs 2 1/2" true duals or a single 3" pipe 350+ hp and 350 Ftlbs o TQ you can use 3" true duals or a single 3.5-4" pipe i got 3" true duals on my 4.6L and i have no bottom end at all im hackin um off for some 2.5" and hoping to see my bottom end power again!

diesels sound sweet with no muffler! masterbeattys dad 7.3X has a 2001 or 2002 excurtion with a 7.3 and he stright piped it sounds awesome!

you can do a CCV delete kit and a high pressure oil cross over and make your truck run alot better 7.3X did it to his and it runs alot better.

Any vids yet?
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Old March 24th, 2009, 04:33 AM   #24
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make sure you keep up on your K&N and keep it clean and oiled or you WILL be replacing a turbo!
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Old March 25th, 2009, 09:22 PM   #25
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make sure you keep up on your K&N and keep it clean and oiled or you WILL be replacing a turbo!

X2, or better yet get rid of the K&N!
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Old March 25th, 2009, 10:44 PM   #26
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do it man!! its awesome...sound great u will love it!!
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Old April 3rd, 2009, 03:35 PM   #27
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Cool.............now if you want to hear your turbo go get a #46637 air filter and install it. Just need a short pc. of 4" pipe to go between the filter and stock intake hose.
Does anyone have any pics of this? I'd LOVE to hear that puppy sing on mine....
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Old April 3rd, 2009, 07:56 PM   #28
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Does anyone have any pics of this? I'd LOVE to hear that puppy sing on mine....
Stop by the shop (Mike's Mobil) and you can check out mine
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Old April 7th, 2009, 07:17 AM   #29
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I just found out my spotter has that set-up on his rig and he loves it too. We are going to add it in this weekend.- Thanks for getting me thinking about it!!!
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Old April 7th, 2009, 07:26 AM   #30
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or better yet get rid of the K&N!
definately get rid of K&N filter. they are no good for a powerstroke motor

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Only 08+ trucks have DPFs, your truck certainly shouldn't have one.
not true. some of the 7.3's had a DPF on em, not as elaborate as the newer trucks. mine did when I got it
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Old April 8th, 2009, 08:58 PM   #31
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I canceled my K&N and got a bully dog intake and got my straight pipes run and put a piece of pipe in between my intake and hose and it sound damn nice. Thanks alot everyone
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Old April 14th, 2009, 09:53 AM   #32
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Yup- I got mine added too- sounds great (lots of whistle) and I got a Diablo Spot chip custom burnt from a buddy of mine to try- WOW!!! that puppy really sets you back in the seat when you nail it!!!!! I hope the tranny holds up....
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Old April 23rd, 2009, 07:12 PM   #33
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I want to go straight piped too but will i pass going into silver lake dunes?
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Old April 23rd, 2009, 07:46 PM   #34
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Yeah i took my truck up there last weekend and as long as you arent rattn on your exhaust youll be fine
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Old April 28th, 2009, 01:28 PM   #35
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More argument on backpressure vs wide open billy style please
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Old June 10th, 2009, 06:18 AM   #36
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my dad has the same truck and he took out his muffler and cat and and it fucking screams.
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