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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-27-2006, 10:03 PM   #1
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I'm considering them. Are they an easy install? What needs to be removed to install them? Could I port out the stock ones myself and what would I use to do it?
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Old 09-27-2006, 10:12 PM   #2
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To do them right you will need a welder to add metal to the front manifold for port size matching to the rear, and also to weld the rears externally.
A Dremel will be needed to gring the original internal weldsw from the rear manifold.
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Old 09-28-2006, 12:03 AM   #3
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how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
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Old 09-28-2006, 12:09 AM   #4
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Quote:
Originally Posted by Peterg22000
how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
Put the beer down and get a dictionary.

You better not even THINK about using a dremel on those. You'll be older than VENOM by the time you're done. Even a die-grinder won't be easy.

There is no 'precise' to worry about. You grind out the factory OEM welds, nothing more. Otherwise your tubing is too thin.
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Old 09-28-2006, 12:28 AM   #5
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by Peterg22000
how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
Put the beer down and get a dictionary.

You better not even THINK about using a dremel on those. You'll be older than VENOM by the time you're done. Even a die-grinder won't be easy.

There is no 'precise' to worry about. You grind out the factory OEM welds, nothing more. Otherwise your tubing is too thin.
I dunno, I ported the manifolds on my STE in about an hour with an air dremel....
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Old 09-28-2006, 12:41 AM   #6
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Quote:
Originally Posted by dbtk2
Quote:
Originally Posted by willwren
Quote:
Originally Posted by Peterg22000
how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
Put the beer down and get a dictionary.

You better not even THINK about using a dremel on those. You'll be older than VENOM by the time you're done. Even a die-grinder won't be easy.

There is no 'precise' to worry about. You grind out the factory OEM welds, nothing more. Otherwise your tubing is too thin.
I dunno, I ported the manifolds on my STE in about an hour with an air dremel....

Were these Cast Iron or Tubular Stainless?

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Old 09-28-2006, 12:44 AM   #7
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by Peterg22000
how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
Put the beer down and get a dictionary.

You better not even THINK about using a dremel on those. You'll be older than VENOM by the time you're done. Even a die-grinder won't be easy.

There is no 'precise' to worry about. You grind out the factory OEM welds, nothing more. Otherwise your tubing is too thin.

thats what i thought but OLBlueEyes said to use a dremel, and i was thinking WTF
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Old 09-28-2006, 01:09 AM   #8
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Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by dbtk2
Quote:
Originally Posted by willwren
Quote:
Originally Posted by Peterg22000
how prsice must the porting be, can an air digrinder be used instead of an Dremel? a dreamel would take forever i think
Put the beer down and get a dictionary.

You better not even THINK about using a dremel on those. You'll be older than VENOM by the time you're done. Even a die-grinder won't be easy.

There is no 'precise' to worry about. You grind out the factory OEM welds, nothing more. Otherwise your tubing is too thin.
I dunno, I ported the manifolds on my STE in about an hour with an air dremel....

Were these Cast Iron or Tubular Stainless?
I dunno....whatever 3.1'* were. I don't think they're stainless.
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Old 09-28-2006, 01:55 AM   #9
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I can tell you from experience, as I think I'm the only person here to ever SELF-port L27 or Series 1 L67 manifolds, you're not going to be doing any porting on them with a dremel.

CAST manifolds are a different story. It won't be easy, but a dremel will work. Cast Iron is brittle, and has very low tensile strength.
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Old 09-28-2006, 01:59 AM   #10
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So Mr. Bill what did you use to port them with
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