Lock out Distributor or Not
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: Nov 2006
Posts: 13
Lock out Distributor or Not
I am running an MSD billet distributor with mechanical advance and am wondering if there are reasons to lock it out. Its a drag car only with a BBC. The car runs fine but I know most people lock the advance on drag only cars. Any thoughts would be helpful.
Thanks
Thanks
#2
Member
MASTER JOURNEYMAN
Join Date: Dec 2003
Posts: 41
Alot depends on compression and what kind of ignition box you are using.
If you have a start retard like most do that lock out timeing then you are fine but if you don't and have a decent amount of compression you could have a hard time getting the car to start with out issues.
Also alot of cars have the timeing locked out because they are using a power adder which is commenly N20 and they do not want the timing to change from were it is.
I hope this helps..
If you have a start retard like most do that lock out timeing then you are fine but if you don't and have a decent amount of compression you could have a hard time getting the car to start with out issues.
Also alot of cars have the timeing locked out because they are using a power adder which is commenly N20 and they do not want the timing to change from were it is.
I hope this helps..
#3
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JUNIOR BUILDER
Join Date: Jul 2003
Location: U.S.A.
Posts: 80
Since its a Track only car there is no reason not to lock it out. Its one less thing to go wrong.
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
#5
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Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
Originally Posted by dcarr511
Since its a Track only car there is no reason not to lock it out. Its one less thing to go wrong.
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
#6
Senior Member
RACING JUNKIE
Join Date: May 2006
Posts: 2,044
Drag only cars spend 99% of their time @ WOT so there is no need for a advance curve in the first place. Its the main reason the distributor is locked out, having all of your advance already in aides in throttle response which is especially important in like a footbrake class where you wanting super crisp throttle response off the line.
Hope this helps, Charles
Hope this helps, Charles
#8
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RACING JUNKIE
Join Date: Sep 2007
Location: Montvale, VA
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Originally Posted by dcarr511
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
#9
Senior Member
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Join Date: May 2006
Posts: 2,044
Originally Posted by olds48
Originally Posted by dcarr511
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.
Cp
#10
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Join Date: Sep 2007
Posts: 4,137
Originally Posted by olds48
Originally Posted by dcarr511
Hard starts can easily be overcome by having a seperate ignition switch and turning the engine over and then flipping the ignition on.