Need Confirmation on Exhaust Cam Specs: 2001 BP-ZE
#1
Need Confirmation on Exhaust Cam Specs: 2001 BP-ZE
So I'm working with a former NASA engineer on developing a header for my car...really smart guy who has been working on cars for a very long time. He's been designing his own exhausts and headers for over 40 years based on formulas from who knows where. All I know is the man is a miracle worker and every car he's ever worked on has made unbelievable power and torque after what he did.
Anyway, I need the exhaust cam specs for my motor and wanted to know if these numbers I found were correct. Any information is appreciated! Thanks ahead of time guys.
Bore: 83mm
Stroke: 85mm
Exhaust Cam Specs
Duration: 250* @ .003"
Opening: 56* BBDC
Closing: 14* ATDC
Lobe Height: 44.600mm (1.7560")
Base Circle: 35.941mm (1.415")
Lift: 8.6614mm (.341")
Valve Overlap: 19*
Anyway, I need the exhaust cam specs for my motor and wanted to know if these numbers I found were correct. Any information is appreciated! Thanks ahead of time guys.
Bore: 83mm
Stroke: 85mm
Exhaust Cam Specs
Duration: 250* @ .003"
Opening: 56* BBDC
Closing: 14* ATDC
Lobe Height: 44.600mm (1.7560")
Base Circle: 35.941mm (1.415")
Lift: 8.6614mm (.341")
Valve Overlap: 19*
#3
ive seen 2 conflicting sources....
http://www.solomiata.com/cams.html
vs
http://www.nasaproracing.com/rules/spec_miata_rules.pdf
http://www.solomiata.com/cams.html
vs
http://www.nasaproracing.com/rules/spec_miata_rules.pdf
#5
I tend to agree. Also some of the valve timing values don't really match up quite right with the duration from the solomiata site. check out this thread
https://www.miataturbo.net/engine-performance-56/exhintake-mod-nb-head-63166/
https://www.miataturbo.net/engine-performance-56/exhintake-mod-nb-head-63166/
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