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Posted

....your valves are the determining factor....

bigger isn't always better

7-3279144.JPG

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

Posted

(nt)

Mit freundlichen Grüßen

John Weese

'72tii "Hugo"

'73tii "Atlantik"

'74 '02 "Inka"

'76 '02 "Malaga"

'72tii engine VIN 2760081 - waiting on a rebuild

"Keep your revs up and watch your mirrors!"

Posted
....your valves are the determining factor....

bigger isn't always better

C.D. :) I wonder where you dig up all this great stuff. I Was looking for exactly those calculations a while ago.

Thanks :)

Posted

"Eef you vant us to un-imp your ride, lemme hear you say 'vhat'..."

~Vroomer

1969 BMW 2002

1972 BMW 3.0 CS

2003 BMW Z4 3.0i

2007 Jeep Wranger X with all the trimmings

Posted

I always understood it to be a balance between intake, valves and exhaust. Also, there is something to be said about back pressure. When folks remove a catalytic or install an oversize exhaust they affect the amount of back pressure that the engine is designed to expect.

No?

Posted

....READ ALL ABOUTIT in books like dis>>

27-1525741.JPG

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

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