Hi All,

 

when I bought my second 4k quite some time ago as well as the complete motor the guy I bought it off gave me a cam with iot that has already been ground.

 

now on the end of the cam the code " T121 " has been manually ground into it, does anyone know what grind this may be. the guy I bought it off was from west Auckland in NZ. I was just hoping maybe someone knew so I don't have to pay $100 to get it camdoctored just to find out what the grind is.

 

I need to know because I need to find out whether I will need to upgrade the bvalve springs or not.

The T121 is a Kent Cams Mild Road grind

 

270 Degrees duration

in timing 26/64

ex timing 69/21

 

in lift 9.74mm

ex lift 9.59mm

 

109 Degrees Lobe Separation Angle

 

0.30mm 0.36mm valve clearances.

 

It is very similar to the Tighe 113 and Tighe 104 that quite a few guys are running around here. Will give a very strong midrange with a wide powerband and a mild lope at idle.

you my friend are a legend.