How big of a differance does it make to have a mandrel bent y-pipe??
TECH Enthusiast
Joined: Nov 2001
Posts: 543
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From: Richmond, Va
Re: How big of a differance does it make to have a mandrel bent y-pipe?? Mandrel over crush bent, I dont think you would notice too big of a difference. Now if its that kinda bend where it actually creases (ripples) the inside of the bends, then you might suffer a bit. Most people generally oversize their y-pipe anyway (dual 3" into single 3"), so to be honest with you, a normal crush bent y that just decreases diameter slightly in the bends would be just fine.
TECH Apprentice
Joined: Jan 2002
Posts: 362
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From: IL
Re: How big of a differance does it make to have a mandrel bent y-pipe?? Unfortunately, I don't know the exact equivalent. . .
But a crush bent 3" pipe flows only as good (if not worse than) a 2.5" mandrel bent piece.
But a crush bent 3" pipe flows only as good (if not worse than) a 2.5" mandrel bent piece.
TECH Apprentice
Joined: Jan 2002
Posts: 362
Likes: 0
From: IL
Re: How big of a differance does it make to have a mandrel bent y-pipe?? Ok,
bends less than 30 degrees won't affect the flow too much.
But, here's a page that shows the flow difference.
http://www.a-1performance.com/performance/
so, a press or crush bent can be expected to flow about 80% of a mandrel bent exhaust.
I think even that might be generous.
bends less than 30 degrees won't affect the flow too much.
But, here's a page that shows the flow difference.
http://www.a-1performance.com/performance/
so, a press or crush bent can be expected to flow about 80% of a mandrel bent exhaust.
I think even that might be generous.
