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Adjusting MP/Mallory dizzy curve? #1226834 05/03/12 06:43 PM 05/03/12 06:43 PM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 OP super stock
70Duster440 OP super stock Joined: Jan 2003 Posts: 1,069 Washington State	Anybody have a technique to adjust their MP/Mallory distributor total advance without a distributor machine and without trial and error in the car - via measurements or something? 7191176-DizzySprings.jpg (105 downloads)

Re: Adjusting MP/Mallory dizzy curve? [Re: 70Duster440] #1226835 05/03/12 07:21 PM 05/03/12 07:21 PM
Joined: Oct 2011 Posts: 559 Idaho L LaRoy Engines mopar
LaRoy Engines mopar L Joined: Oct 2011 Posts: 559 Idaho	Get the Mallory distributor advance kit, part number 29014. Summit Racing has them for $32.95. It comes with paddles to set the amount of advance and springs and charts to set the rate of advance. Last edited by heyoldguy; 05/03/12 07:23 PM.

Re: Adjusting MP/Mallory dizzy curve? [Re: LaRoy Engines] #1226836 05/03/12 07:41 PM 05/03/12 07:41 PM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 OP super stock
70Duster440 OP super stock Joined: Jan 2003 Posts: 1,069 Washington State	Cool - thanks! Wasn't aware such a kit existed.

Re: Adjusting MP/Mallory dizzy curve? [Re: 70Duster440] #1226837 05/03/12 08:00 PM 05/03/12 08:00 PM
Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central RobX4406 I Live Here
RobX4406 I Live Here Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central	Want an absolute hillbilly method? Get a cam degree wheel. Drop distributor in center hole and hold the shaft tang in a vise. Tape/Affix a zip tie to the top of shaft as a pointer. Adjust advance mechanism, twist top of shaft and note swing in degrees. Multiply by 2 and you have you mechanical advance. As far as the springs, that's more trial and error without a machine. The curve kit works well and has some suggestions on colors/pairs.

Re: Adjusting MP/Mallory dizzy curve? [Re: 70Duster440] #1226838 05/03/12 08:04 PM 05/03/12 08:04 PM
Joined: Nov 2007 Posts: 21,844 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,844 Kirkland, Washington	Trial and error works pretty good for this. Use a sharpie to mark the positions you've tried as you go. Did mine on the third try, didn't have to buy anything

Re: Adjusting MP/Mallory dizzy curve? [Re: RobX4406] #1226839 05/03/12 08:18 PM 05/03/12 08:18 PM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 OP super stock
70Duster440 OP super stock Joined: Jan 2003 Posts: 1,069 Washington State	Quote: Want an absolute hillbilly method? Get a cam degree wheel. Drop distributor in center hole and hold the shaft tang in a vise. Tape/Affix a zip tie to the top of shaft as a pointer. Adjust advance mechanism, twist top of shaft and note swing in degrees. Multiply by 2 and you have you mechanical advance. As far as the springs, that's more trial and error without a machine. The curve kit works well and has some suggestions on colors/pairs. Ha! Hillbilly has it's place. And I happen to have a degree wheel. Nice to have some options to choose from.

Re: Adjusting MP/Mallory dizzy curve? [Re: 70Duster440] #1226840 05/03/12 08:40 PM 05/03/12 08:40 PM
Joined: May 2005 Posts: 2,295 dark side of the moon D Dougsmopars top fuel
Dougsmopars top fuel D Joined: May 2005 Posts: 2,295 dark side of the moon	Buy the kit from Summit. Very simple to use. For a street car it's pretty simple find what your motor wants for initial and use the paddle that limits it 38 degrees. Mine likes 21 initial, i used the 17 paddle to get a total of 38. Woked fine.Only trial and error needed is to find what your motor wants for initial. Yes for a race car there would be more involved but for a street car it's a simple task.Kit is well worth the price.

Re: Adjusting MP/Mallory dizzy curve? [Re: Dougsmopars] #1226841 05/03/12 09:42 PM 05/03/12 09:42 PM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 OP super stock
70Duster440 OP super stock Joined: Jan 2003 Posts: 1,069 Washington State	Thanks. Was already dialed in using a machine and works well but I'm making some major engine changes and want to recurve it myself.

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