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Trying to design a 4-2-1 header for 3RZ, cam timing Qs
Hey everyone!
I tried searching for answers in quite a few places with no luck, hopefully someone here can help.
I'm trying to design a properly tuned 4-2-1 header for my 1995 T-100 2.7L.
In order to calculate the parameters of a proper design I need to know the following -
*how many degrees before BDC the exhaust valves open?
*how many degrees after TDC the exhaust valves close?
*what's the RPM redline (because I don't have a tach in my truck)?
Thanks in advance!
Moti
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10-25-2009, 11:13 PM
