Timing

zach0 · 09-16-2005, 05:37 AM

I've done a search but have come up with nothing. I have a 289 with Hi-Po heads, .030 bored, Torker 2 intake, MSD 6ALN & coil, very radical cam, 650 Holley with an automatic. I'm trying to find a good place to start my timing at. Any help?

Phillyfanfrombirth · 09-16-2005, 11:12 AM

Start playing.

Start at the stock specs, and go from there... you have so much in there that I think it would be impossible to pinpoint...

Rev · 09-16-2005, 03:13 PM

I think you would want 10-13 btdc at idle with the vacuum advance disconnected and blocked off. My guess is that you would want 36-38 btdc total (all in by 3000 rpm). You probably would need some sort of spring kit to adjust the total timing from the centrifugal advance.

You might want to consider getting an after market electronic distributor and box. My recommendation is an MSD with magnetic pick up and maybe an MSD 6-AL box. I think you can adjust the total timing on those with little effort and have a hot electronic ignition as well.

Rev

zach0 · 09-16-2005, 03:39 PM

I have an MSD 6ALN with an MSD Dis. on there now

Rev · 09-16-2005, 03:54 PM

Check on the MSD web site or look at the literature that came with the distributor for the correct way to adjust total timing. I know on my Mallory (not recommended) that I just have to bend a little tab one way or the other to increase/decrease total timing. Mine came with the total timing all in by about 3000 rpm.

Rev

valley firearms · 09-17-2005, 01:09 AM

I just installed a Comp cam w/512 lift and 280 duration. It won't even start to run half decent until I adjust her to 37 btdc. Bump the distributor a tooth if the diaphram is hitting the therm housing. Advance it until she pings then back her off a few degrees. Then put the timing light on the damper. I bet you'll be somewhere in the range Rev and I are thinking.

zach0 · 09-17-2005, 07:40 PM

I'll give 37 total a try tomorrow and let ya' know how it goes. Man my neighbors are going to be pissed.

zach0 · 09-18-2005, 10:21 AM

I tried to time it and and my timing mark was bouncing between 5-15 degrees so I could not get a steady mark. I checked my vacuums and there are no leaks or anything.

Any thoughts.

Rev · 09-18-2005, 12:50 PM

Worn and loose timing chain? Worn helical drive gear on the cam?

Rev

zach0 · 09-18-2005, 01:05 PM

New Cam, Dis w/cam, and chain/sprockets

09-16-2005, 05:37 AM	#1
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	Timing I've done a search but have come up with nothing. I have a 289 with Hi-Po heads, .030 bored, Torker 2 intake, MSD 6ALN & coil, very radical cam, 650 Holley with an automatic. I'm trying to find a good place to start my timing at. Any help? __________________ 1980 RX7 with 289 Ford V-8 bored .030 over, Very radical cam, Torker 2 high rise intake, Holley 650 Carb, MSD Nascar 6ALN ignition, MSD coil and distributor, Headers with dual open side exhaust. Over 300 horse. 1966 Mustang still in progress

09-16-2005, 11:12 AM	#2
Phillyfanfrombirth Registered Member Join Date: Dec 2004 Location: South Central PA Posts: 358	Re: Timing Start playing. Start at the stock specs, and go from there... you have so much in there that I think it would be impossible to pinpoint...

09-16-2005, 03:13 PM	#3
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Timing I think you would want 10-13 btdc at idle with the vacuum advance disconnected and blocked off. My guess is that you would want 36-38 btdc total (all in by 3000 rpm). You probably would need some sort of spring kit to adjust the total timing from the centrifugal advance. You might want to consider getting an after market electronic distributor and box. My recommendation is an MSD with magnetic pick up and maybe an MSD 6-AL box. I think you can adjust the total timing on those with little effort and have a hot electronic ignition as well. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

09-16-2005, 03:39 PM	#4
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	Re: Timing I have an MSD 6ALN with an MSD Dis. on there now __________________ 1980 RX7 with 289 Ford V-8 bored .030 over, Very radical cam, Torker 2 high rise intake, Holley 650 Carb, MSD Nascar 6ALN ignition, MSD coil and distributor, Headers with dual open side exhaust. Over 300 horse. 1966 Mustang still in progress

09-16-2005, 03:54 PM	#5
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Timing Check on the MSD web site or look at the literature that came with the distributor for the correct way to adjust total timing. I know on my Mallory (not recommended) that I just have to bend a little tab one way or the other to increase/decrease total timing. Mine came with the total timing all in by about 3000 rpm. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

09-17-2005, 01:09 AM	#6
valley firearms Registered Member Join Date: Sep 2005 Location: alaska Posts: 16	Re: Timing I just installed a Comp cam w/512 lift and 280 duration. It won't even start to run half decent until I adjust her to 37 btdc. Bump the distributor a tooth if the diaphram is hitting the therm housing. Advance it until she pings then back her off a few degrees. Then put the timing light on the damper. I bet you'll be somewhere in the range Rev and I are thinking. Last edited by valley firearms; 09-17-2005 at 01:11 AM.. Reason: correct spelling

09-17-2005, 07:40 PM	#7
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	Re: Timing I'll give 37 total a try tomorrow and let ya' know how it goes. Man my neighbors are going to be pissed. __________________ 1980 RX7 with 289 Ford V-8 bored .030 over, Very radical cam, Torker 2 high rise intake, Holley 650 Carb, MSD Nascar 6ALN ignition, MSD coil and distributor, Headers with dual open side exhaust. Over 300 horse. 1966 Mustang still in progress

09-18-2005, 10:21 AM	#8
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	Re: Timing I tried to time it and and my timing mark was bouncing between 5-15 degrees so I could not get a steady mark. I checked my vacuums and there are no leaks or anything. Any thoughts. __________________ 1980 RX7 with 289 Ford V-8 bored .030 over, Very radical cam, Torker 2 high rise intake, Holley 650 Carb, MSD Nascar 6ALN ignition, MSD coil and distributor, Headers with dual open side exhaust. Over 300 horse. 1966 Mustang still in progress

09-18-2005, 12:50 PM	#9
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: Timing Worn and loose timing chain? Worn helical drive gear on the cam? Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

09-18-2005, 01:05 PM	#10
zach0 Registered Member Join Date: Apr 2001 Location: Hampton, Virginia Posts: 227	Re: Timing New Cam, Dis w/cam, and chain/sprockets __________________ 1980 RX7 with 289 Ford V-8 bored .030 over, Very radical cam, Torker 2 high rise intake, Holley 650 Carb, MSD Nascar 6ALN ignition, MSD coil and distributor, Headers with dual open side exhaust. Over 300 horse. 1966 Mustang still in progress

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