Best way to proceed with improving up 427 Windsor street setup

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#10 (permalink)

11-13-2015, 01:12 PM

Ace23

CC Member

Join Date: Sep 2013

Location: Memphis, TN

Cobra Make, Engine: SPF#1867 , KC427

Posts: 431

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Quote:

Originally Posted by scottj

What is the reasoning for using 2" primaries in this application? We didn't using anything bigger than 1-7/8" on 440+ cid, 850+ HP, dirt oval race engines... and we had plenty of real world data. Maybe 2" for a drag race application, but drag and street aren't really relatable.

The headers came on the car when I purchased it. I haven't really looked at what options I have but my initial impression was that 1-3/4" would suffice as that is what most of the cars I have seen have. I'm sure the 2" flow well in high rpm applications but I would think they would be hurting the bottom end.

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