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Mid length header?

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Old Oct 30, 2003 | 08:52 PM
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Default Mid length header?

I bought some Macs and ORYP what kind of hp/tq would I be gaining? I am also planning on a 224/224 .581/.581 LSA 114 cam in about a month what hp/tq should I expect. I dynoed 324/339 with just a lid at 17,000 miles. I also bought LS1edit for the tuning side of things.
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Old Oct 31, 2003 | 03:00 AM
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You should see a 20/20 increase without the cam. I'll tell you this...that cam is gonna beg for long tubes. It'll work with mid-lengths but it'll scream with LT's.
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Old Oct 31, 2003 | 03:53 AM
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Originally Posted by Jabroni
You should see a 20/20 increase without the cam. I'll tell you this...that cam is gonna beg for long tubes. It'll work with mid-lengths but it'll scream with LT's.

i can vouch for this..
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Old Oct 31, 2003 | 04:58 AM
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unless you have to deal with visual for emissions anything but LT's is pretty worthless.
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Old Nov 5, 2003 | 02:24 AM
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Originally Posted by jrp
unless you have to deal with visual for emissions anything but LT's is pretty worthless.
Umm.. most of us consider MAC Mid-lengths "long tube" headers
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Old Nov 5, 2003 | 08:30 AM
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i got 21 hp and 20 ftlbs outta my macs when i installed them
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