We started with a direct replacement with larger than stock intermediate pipe of 3" with an exit of 2 1/4" This unit was small gain over stock on dyno. Stock manifold here.

http://www.stormcomm.net/dyno.mov
This is the PowerPipe-SC Look how much quicker the torque comes in and the steady climb and fall.

Hope this helps with your question. This was the only one put on the dyno so far . I feel the DC and the True Flow design would be better yet Don

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

so is there any chance you will have numbers for the DC and true flow in the future?

on the fence about which one...

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1976 Plymouth Feather Duster
2002 Dodge Dakota 4.7l v8

These dyno charts are very helpful. I am looking forward to the next two (DC vs True flow) as well.
Did you say you had the long hookers charted as well and the Clifford shorties? This would make a heck of a collection of dyno charts and a good Engine FAQ sticky.

I am looking for what Doc was talking about in another post earlier this week, lots of torque at lower rpms vs max HP. My engine is built for more torque so I am looking for the best exhaust to make the most torque.

Thanks,

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

Here you go old blue. I will have more soon, going down the road a bit, revving up!! The in car we have is all motor no exhaust sound/drone at all. When you walk out back you sure here it though!!
http://www.youtube.com/watch?v=6oRVNd28h-A
That was no good without pics!!

1st gear ride in TwIsTeR How long will it take to get to 5000k
http://www.youtube.com/watch?v=kq9bjeQ4fpo

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

Yes we will be testing them!! PowerPipe-DC-PF-TF

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

Thanks for the sound bite.Sounds very good.I like the open sound.What cam are you running?

Sufficient flow like a straight through muffler design? I will be testing the difference soon X plus Y and Y by itself. Yes it's a little heaver but I run two tail pipes as well. I will also save the weight and money for sure if it's not better.

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

Thanks for your input on this Matt. Sometimes things just don't add up. I hope this is not one. Here we have proven X pipes work with allot of testing in their system. Many people here think like Joshua Skinner Y pipe and save the weight. We are glutton for punnishment my mother said all the time. Will it overcome the weight difference? I need to find out if this helps or not now with the in my head.Feels allot better in the car, Have a good day all.

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

No problem, glad you like the sound! This was the first two chamber muffler I put together last week. I keep riding around waiting for drone. Up to 3500rpm steady running still no drone The air is not staying in either one of the chambers long This is a good thing A. The cam is small 260-440 CompCams straight up in this motor.

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

I very, very, likely will buy a set simply based on how this twister Dude has listened to members. Deep inside we all respect sweat and fairness.

Time to take that info and sum it up. Too many cooks spoil the broth. God Speed twister. GL

Got my popcorn.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

Sitting back and enjoying the show huh, kick your shoes off and relax rug.

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

Thank you gl/6 a little bit of this and that in the soup and it should be tasting pretty good by now. Where is the bread

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

Spoke with Charlie on the phone I am picking up the 65 Valiant with a 170 tomorrow. Headers for the early A body will be under works again this week. We will build a long and short tube set for this application. I will be making these along with the True Flow Turbo Header Design. Talk to yall soon Don

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page

We picked up the 65 Valiant from Charlies last week. The header build will start this week for the early A-Bodies. The car is at the shop 225 removed and the 170 going in soon.

Flat towed er all the way to Bradenton!!

The 170 is a 1964 block. Thanks again Charlie! More up dates as we progress.

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'72 Duster /6 with turbo build up
'03 Ram 2500 4x4 w/HEMI 5sp 4:10 posi
My Twister Page