TR6 TR6 Crane Cam Grind# S-264-C

[vettedog72]

I need some help with a cam. I am looking at a cam on ebay but can't get a reference with the Crane web page. If somebody knows how agressive this cam is or is not I would like to hear any comments.


Triumph TR6 GT6 camshaft Virtually new cam

High lift performance cam. New, not a regrind. Was removed from a freshly rebuilt otherwise stock engine because it wouldn't idle. This cam will NOT work with stock compression, carbs, exhaust, etc.

Cam Specifications:



Valve setting Intake .018 Exhaust .020 HOT



Lift

Intake @ Cam 2895 @ Valve 414

Exhaust @ Cam 2895 @ Valve 414

All lifts are based on zero lash and theoretical rocker arm ratios



Rocker Arm Ratio 1.43



Cam Timing .018

Tappet Lift Opens Closes Advertised Duration

@ Intake 27º BTDC 57º ABDC 264º

@ Exhaust 67º BBDC 17º ATDC 264º



Cam Timing .50

Tappet Lift Opens Closes Max Lift Duration

@ Intake 6º BTDC 36º ABDC 105º ATDC 222º

@ Exhaust 46º BBDC (4º) ATDC 115º BTDC 222º



Crane Cams

Part # 00213

Grind# S-264-C

 

[Guest]

Google crane s-264

this is near the top
there are more

https://64.233.179.104/search?q=cache:1xM...t=clnk&cd=4

 

[vettedog72]

So far I have found reference to Crane grind # 264 was used on a Slant 6 (Plymouth?) and for a Falcon.

I guess these cars have the intake and exhaust on the same side of the block (no hemi's here) and the valves are in line with the block and consequently there is some relation with a TR6.

If the numbers are:
Valve Lift Duration in open bbdc IT close atdc
.414" 264 27 57
exhau btdc exhau abdc
67 17
and looking at the chart posted earlier on this BCF these spec's would be in the ball park HOWEVER; the picture of Crane's spec's for this cam have some MAJOR differenences as the BTDC and ATDC seem to be miss stated and are as follows:
In BTDC open in close ATDC
EX OPEN BBDC EX Close ATDC

If it is not miss-stated, then that is why the car would not idle /ubbthreads/images/graemlins/smirk.gif