Before / After Dyno - Weldina Exhaust, Custom 2.5" X-Pipe, Test Pipes

'10Anamoly · 02-27-2011, 07:28 AM

Raspy from the x-pipe area but will fix that soon. I can get the run files next time I go to Z1, maybe next weekend. Only have the bitmap/jpeg versions at the moment. Sound clips coming soon.

Jordo! · 02-27-2011, 02:35 PM

Quote:

Originally Posted by '10Anamoly

Raspy from the x-pipe area but will fix that soon. I can get the run files next time I go to Z1, maybe next weekend. Only have the bitmap/jpeg versions at the moment. Sound clips coming soon.

Cool, thanks dude

The rasp is probably from the TP's if they are unresonated. The X pipe allegedly makes a "whooshing"(?) sound.

Oh, just curious, but do you have dynos of bone stock vs +weldina?

Your torque curve looks exactly like mine with the weldina (I have it too) + TP's.

'10Anamoly · 02-27-2011, 04:36 PM

The stock curve was similar but the Weldina gave about 4-6hp and 4-6tq from 3000-4500 and 5000-6500. Peak horsepower was still about 275hp and 230tq. Basically a midrange boost. The problem with the Weldina is that going into the Y-section it necks down to a single 2.5" pipe and then comes back out into two 2" pipes. The exhaust stays at 2" all the way through the resonators and then jumps back up to 2.5" through the rear exits. I used a 304 stainless 2010 Mustang X-pipe and some Vibrant 2-1/2" stainless resonators to make a full 2.5" system with the Weldina muffler in the back. Much smoother after dropping out that midsection and replacing with a proper 2-1/2" full x-pipe.

Jordo! · 02-27-2011, 06:00 PM

Quote:

Originally Posted by '10Anamoly

The stock curve was similar but the Weldina gave about 4-6hp and 4-6tq from 3000-4500 and 5000-6500. Peak horsepower was still about 275hp and 230tq. Basically a midrange boost. The problem with the Weldina is that going into the Y-section it necks down to a single 2.5" pipe and then comes back out into two 2" pipes. The exhaust stays at 2" all the way through the resonators and then jumps back up to 2.5" through the rear exits. I used a 304 stainless 2010 Mustang X-pipe and some Vibrant 2-1/2" stainless resonators to make a full 2.5" system with the Weldina muffler in the back. Much smoother after dropping out that midsection and replacing with a proper 2-1/2" full x-pipe.

That sounds spot on. Is the above dyno with the TP's as the only edition or is it TP+x pipe?

Basically I was just wondering if you had a comparison of weldina with Y vs with X to see where it picked up some power from that change alone.

'10Anamoly · 02-27-2011, 10:53 PM

No dyno from y to x but I can tell you the midrange and near the peak was better.

02-27-2011, 07:28 AM	#1 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 18	Raspy from the x-pipe area but will fix that soon. I can get the run files next time I go to Z1, maybe next weekend. Only have the bitmap/jpeg versions at the moment. Sound clips coming soon. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

02-27-2011, 04:36 PM	#3 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 18	The stock curve was similar but the Weldina gave about 4-6hp and 4-6tq from 3000-4500 and 5000-6500. Peak horsepower was still about 275hp and 230tq. Basically a midrange boost. The problem with the Weldina is that going into the Y-section it necks down to a single 2.5" pipe and then comes back out into two 2" pipes. The exhaust stays at 2" all the way through the resonators and then jumps back up to 2.5" through the rear exits. I used a 304 stainless 2010 Mustang X-pipe and some Vibrant 2-1/2" stainless resonators to make a full 2.5" system with the Weldina muffler in the back. Much smoother after dropping out that midsection and replacing with a proper 2-1/2" full x-pipe. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd Last edited by '10Anamoly; 02-27-2011 at 04:39 PM.

02-27-2011, 10:53 PM	#5 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 18	No dyno from y to x but I can tell you the midrange and near the peak was better. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

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