quattroworld.com Forums: Camshaft Specs for comparison and some swap comments

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Camshaft Specs for comparison and some swap comments
Posted by: UrS4boy (137) on 2017-04-23 12:59:36
In Reply to: 7a exhaust cam (dual) mod posted by the4ork on 2017-04-22 01:59:10

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Intake

AAN, ABY, 3B_ Opens 3° ATDC, closes 25° ABDC, duration 202°, lift 8,3mm
ADU__________Opens 13° ATDC, closes 35° ABDC, duration 202°, lift 8,3mm?
NM __________Opens 0° ATDC, closes 32° ABDC, duration 212°, lift 9,6mm?
7A___________Opens 6° ATDC, closes 38° ABDC, duration 212°, lift 9,6mm


Exhaust

AAN, ABY, 3B_ Opens 42° BBDC, closes 9° BTDC, duration 213°, lift 8,6mm
ADU__________ Opens 24° BBDC, closes 1° ATDC, duration 205°, lift 9,5mm
NM __________ Opens 35° BBDC, closes 3° BTDC, duration 212°, lift 9,6mm
7A___________ Opens 42° BBDC, closes 3° BTDC, duration 219°, lift 10,5mm

You'd definitely have "fun" (read: trial and oops") getting a 7A exhaust cam running as an intake cam. You've only got finite gear teeth on the sprockets to play with. And you would have to trim off the nose of the one 7A exhaust cam to let it fit in the intake location.





REFERENCES:

1. 20 valve Turbo and non-Turbo Camshaft PNs and Specifications = https://forums.quattroworld.com/s4s6/msgs/87524.phtml

2. Consolidated Camshaft info = https://forums.quattroworld.com/s4s6/msgs/104013.phtml
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