Static Timing ?

[rcf925]

I'm about ready to drop distributor in my engine after complete rebuild, I have motor at TDC right now but I'm runnung .292 cam and dual 45's on a heavily ported head. Would you drop distributor in TDC or maybe go to the ball bearing which I think is 24 Degrees BTDC. Just looking for a general idea where to locate that would be in the ballpark. It's an 002 Distributor with pertronix, Black Coil

['76mintgrün'02]

this does not answer your question, but raises a couple others  

 

3 minutes ago, rcf925 said:

It's an 002 Distributor with pertronix, Black Coil

 

Resistor installed as well?  (need to have proper resistance for the Pertronix)

 

Have you seen the threads about trying to fit Pertronix in the 002 distributor?

Make sure the rotor is sitting low enough.  Some of the magnetic rings have a smaller ID.

 

Here is one of those threads

 

 

[rcf925]

This 002 and coil was from previous motor that ran fine 20 years ago LOL so I was just going to leave it alone and try it

[Hans]

I would set between 5 and 8 tdc static. I would mark the pulley and flywheel at 33 deg. For timing light.

[Simeon]

Put it in at TDC (or technically nearly TDC as I find I tweak the timing slightly when actually cranking for the first start). Once it is running set the timing with a light to whatever timing prescription you are aiming for.

 

Don’t bother trying to set a specific static timing point as this will ultimately be determined by where the distributor ends up following dynamically setting the timing.

 

Ultimately what you are interested in is where the max advance ends up. How it gets there is in the hands of the distributor (unless you can change its curve), so worry about that and then the initial timing (at idle) falls where it does. 

[Hans]

Simeon is correct as far as the standard procedure goes: TDC static. That will get it started. However, if you eventually set for say 33 deg all in, you will end up with about 5 deg static as I recall. Idle is about 10.

[rcf925]

I think I'm aiming for about 35 degree total timing, If I put distributor in at TDC where do you think the total timing would end up?

[Hans]

Depending on distributor, less. I can only speak from my experience. Starting with TDC static, I was not getting enough total advance. By setting to +/- 33 all in, and then letting car go back to idle (600 rpm) I saw about 10 deg. So TDC will work but I'd say maybe 5 BTDC will get you closer to 35 once you get the light on it.

[rcf925]

6 minutes ago, Hans said:

Depending on distributor, less. I can only speak from my experience. Starting with TDC static, I was not getting enough total advance. By setting to +/- 33 all in, and then letting car go back to idle (600 rpm) I saw about 10 deg. So TDC will work but I'd say maybe 5 BTDC will get you closer to 35 once you get the light on it.

 

Thank You