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Tippy Tippy is offline
Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 8,715
I am speaking of per bank. If you have one really long primary and one really short, there will be the possibility of the pulse energy arriving at the merge at roughly the same time. Then, you'd have wasted energy and backpressure.

I believe what people get confused about, is how log manifolds that are WAY unequal length spool way sooner than equal length headers. They miss the fact log manifolds are cast iron and VERY thick trapping a lot of heat which is energy hitting the turbine wheel more efficiently than a thin-wall header can do due to lots of heat loss.

Dividing scrolls reduces reversion as you stated, but that was not my first post was speaking of.

From my personal observation, every single dyno comparison going from unequal to equal length primaries/secondaries on both NA and turbo cars always picks up power.

Never seen one lose power. Not saying it's not possible, just never read about this happening.

Last edited by Tippy; 03-20-2014 at 06:45 PM..
Old 03-20-2014, 06:41 PM
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