Make:PORSCHE

Model:CS POR 4

ROCKER RATIO

Ivan Tighe Engineering Pty Ltd
t/a Tighe Cams
47 Westgate street
Wacol Qld 4076 Australia
A.B.N. 46 009 747 139
Tel (07) 32716001Fax (0732716005

Internet: www.tighecams.com.au
Email: sales@tighecams.com.au
 


Profile
Number
Advertised Timings
DURATION
VALVE LIFT
TAPPET
CLEARANCE
REMARKS
Ex Op.
B.B.D.C.
Ex Cl
A.T.D.C
In Op.
B.T.D.C.
In Cl
A.B.D.C
Advertised
@ 0.050"
Gross.
@ T.D.C.
Ex.
In.
                               
561 47 12 6 42 229 228 215 220 0.461" 0.473"     0.012" 0.012" Standard 924 ( @ 0.040 )
745C 69 29 33 65 272 272 236 236 0.460" 0.460"     0.014" 0.012"  
791C 72 36 40 68 288 288 244 244 0.495 0.495"     0.014" 0.012" Fast Road Touring
1382C 80 44 48 76 304 304 250 250 0.495" 0.495"     0.012" 0.010"  
483C 81 49 49 81 310 310 260 260 0.480" 0.480"     0.012" 0.010" Competition
440C 80 50 50 80 310 310 272 272 0.475' 0.475"     0.012" 0.010"  
613C 89 61 61 89 330 330 280 280 0.528" 0.528"     0.012" 0.010" Road Race Only
                               
                               
                               
                               
                               
                               

Notes 

* New Camshafts available.

* For a larger selection see V.W. Golf.

* The standard Cam has 0.460" lift

* Care must be taken with valve springs, at higher lifts.

*