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Old 02-08-2010, 02:02 PM   #1
WildBillyT
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Anybody fab up their own H-pipe?

I'm going to be installing the "final" exhaust system on the Nova soon, and while I like the 3" Summit system it does not have any type of exhaust crossover. I've got extra exhaust tubing, and have a plasma cutter and welder sitting there, so I'm thinking about trying to make one up.

Couple of questions:

1.) Has anyone done it?
2.) Does the crossover pipe need to be the same size as the rest of the pipes?
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Old 02-08-2010, 02:11 PM   #2
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im not sure if you are a member on this site but it helped me out a lot when i had my nova. its stevesnovasite.com. a lot of really nice cars
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Old 02-08-2010, 02:24 PM   #3
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Originally Posted by 69Novaguy View Post
im not sure if you are a member on this site but it helped me out a lot when i had my nova. its stevesnovasite.com. a lot of really nice cars
Question is there too
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Old 02-08-2010, 03:05 PM   #4
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Want a 3 inch X pipe?
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repo bigals turd gen and part it out to a loving home
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Old 02-08-2010, 03:07 PM   #5
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Originally Posted by LTs1ow View Post
Want a 3 inch X pipe?
How much? Trade you some supps?
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Old 02-08-2010, 03:07 PM   #6
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Originally Posted by WildBillyT View Post
How much? Trade you some supps?
If you can pick it up, its yours. Just taking up space in my garage at this point.
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repo bigals turd gen and part it out to a loving home
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Old 02-08-2010, 03:13 PM   #7
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Originally Posted by LTs1ow View Post
If you can pick it up, its yours. Just taking up space in my garage at this point.
PM me with details. I can leave you a can of Jack3d with 2 scoops missing for your troubles
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Old 02-08-2010, 04:45 PM   #8
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Question is there too
nicee. figured id try haha
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Old 02-08-2010, 09:06 PM   #9
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usually you want to keep the same diameter, if 3" you can step the crosover to 2.5".
the reason is for balancing left & right sides, so in all reality any suffecient size will do its job, (obviously 1" piping would not be a good choice)

also alot suggest if going to run a cutout,use a tire crayon and strike a line from header flange along pipes to muffle, let vehicle warm up, take a decent pass. where the crayon stopped melting/burning off is your most torque/hp point. install cutout at that area.
p.s. thats a old timer trick !!!
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Old 02-08-2010, 09:08 PM   #10
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Quote:
Originally Posted by S.J.SLEEPER View Post
usually you want to keep the same diameter, if 3" you can step the crosover to 2.5".
the reason is for balancing left & right sides, so in all reality any suffecient size will do its job, (obviously 1" piping would not be a good choice)

also alot suggest if going to run a cutout,use a tire crayon and strike a line from header flange along pipes to muffle, let vehicle warm up, take a decent pass. where the crayon stopped melting/burning off is your most torque/hp point. install cutout at that area.
p.s. thats a old timer trick !!!
I've got the tire crayon in my car ash tray! Heh. Thanks man.
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