| Re: Pairing headers?
Jac mac thanks for the quick answer.
Very usefull but also opening even more questions
Am i assuming correct that cylinders 1 and 5 are the ones at the front (waterpumpend) of engine ?
how many crank degrees are in between the different firings
1 -- 3 -- 7 -- 2 -- 6 -- 5 -- 4 -- 8
0° fire / compmid/ compstart / intmid / overlap /exmid / exhstart/ work
@ if one pairs 1--2 you combining a fire with a intake mid cylinder
@90° later 3 fires and the paired 4 is in exhaust mid.
@180° later 7 fires and the paired 5 is in intake mid
@270° 2 fires and 1 is in exhaust mid
@360° 6 fires and 8 is in intake mid
@450° 5 fires and 7 is in exhaust mid
@540° 4 fires and 3 is in intake mid
@630° 8 fires and 6 is in exhaust mid
sounds strange to me. For example on a straight for 4 cylinder race engine one try to pair the cylinders which are firing 360° apart so you always combine firing with overlap. following the theory the exhaustflow should support the overlap low and therefore improving the filling with fresh gas.
As i said, i donīt know much about V8īs . High likely i have done something wrong in the above simulation
Your feedback ?
Last edited by EGLITOM; 11-11-07 at 05:05 PM.
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