428 Timing

[428mach169 10]

Does anyone know what the initial timing should be on a 428CJ with a full race cam? Also what RPM should I set it to in idle for the timing adjustment? Any help would be greatly appreciated.

[jmlay 80]

There is no single answer for all, especially if you do not provide full details of the build. YOu may want to visit http://www.fordfe.com

[afret 37]

If it's a true (drag) race only cam, the initial advance should be the total advance with locked out timing. This would be usually anywhere from about 36* to 42*. If it's more a street/strip cam, set the initial around 18*-20* with the rest in the distributor with a total of around 38*.

 

With locked out timing, it helps to have a start timing retard to make it easier on the starter. Not absolutely required though.

[428mach169 10]

This is great. I really appreciate it. Just got the stang a few weeks ago. Trying to learn as much as possible to do everything myself. I'll let you know how it goes.

[LoneWolf2U 136]

Does anyone know what the initial timing should be on a 428CJ with a full race cam? Also what RPM should I set it to in idle for the timing adjustment? Any help would be greatly appreciated.

 

 

Start with it at 8*- 800 rpm.

Then work with it till the settings are what the engine build wants to run best.

[428 Cobra Jet 10]

Guy's, Check the cam specs, if you dont know then for 108-110 deg lobe cam try initial 14deg BTDC @ 850rpm / total advance should be around 36deg. This should be a good starting point if it is as described.

[428 Cobra Jet 10]

Guy's, Check the cam specs, if you dont know then for 108-110 deg lobe cam try initial 14deg BTDC @ 850rpm / total advance should be around 36deg. This should be a good starting point if it is as described.