msd 6ls question
08-09-2012, 09:15 PM
#1
msd 6ls question how easy are these to wire? is everything plug and play except the ground, power and tach signal?
im getting my white monte running again with carbed LS power and would like to know before i dive headfirst into doing it
and i heard this also on another forum
"The 6LS is easy to wire but you MUST make sure you calibrate the ignition timing.
LS motors have crank trigger wheels that are NOT fit accurately from the factory - they can be off as much as 20 degrees. The factory computer phases them each time the computer is reset by comparing against the cam signal.
So you need to make sure you add a TDC mark and indicator to your balancer and then make sure you adjust the 6LS via laptop so that if it thinks it's running 20 degrees advance, it is actually running 20 degrees - and not 40.
The process is easy and we can walk you through it."
so how would i find how off it is? with a degree wheel for degreeing cams? and would i have to remember how far off it is and compensate on the msd box for it or could i reset it completely so it reads correct?
im getting my white monte running again with carbed LS power and would like to know before i dive headfirst into doing it
and i heard this also on another forum
"The 6LS is easy to wire but you MUST make sure you calibrate the ignition timing.
LS motors have crank trigger wheels that are NOT fit accurately from the factory - they can be off as much as 20 degrees. The factory computer phases them each time the computer is reset by comparing against the cam signal.
So you need to make sure you add a TDC mark and indicator to your balancer and then make sure you adjust the 6LS via laptop so that if it thinks it's running 20 degrees advance, it is actually running 20 degrees - and not 40.
The process is easy and we can walk you through it."
so how would i find how off it is? with a degree wheel for degreeing cams? and would i have to remember how far off it is and compensate on the msd box for it or could i reset it completely so it reads correct?
08-09-2012, 10:23 PM
#3
The hardest part is the crank sensor plug if the starter is already in, LOL. Otherwise, it is too easy. I have heard of the reluctor of aftermarket being screwed up, but no one i personally know of and as many swaps i have done? Never an issue.
08-10-2012, 05:23 AM
#5
This is the first I have ever heard of that problem.
I say don't worry about it.
The boxes are absolutely plug and play. The only real ball scratcher was trying to get the USB to serial converter working with Windows. Having to select comm port numbers took me back to the 80's
I say don't worry about it.
The boxes are absolutely plug and play. The only real ball scratcher was trying to get the USB to serial converter working with Windows. Having to select comm port numbers took me back to the 80's
08-10-2012, 01:44 PM
#6
i got another question too, i read that to run the stock 200r4 i need to change out the throttle valve spring and get a different bracket for the tv cable? or could i just use the stock bracket thats still in the car, thats what i used with the carbed 350 that was in it and it worked fine so i dont see how it would be any different with a different motor under the carb?
and would the driveshaft yoke from the 200r4 interchange with one from a th350? the built the350 in my 71 monte has a 6" tailhousing on it so its the same length as the 200r4 so i might just do that, if theyre not the same its no big deal ill just switch the yokes on the 2 cars
Last edited by 1988montecarloss; 08-10-2012 at 02:13 PM.
08-15-2012, 06:56 PM
#7
could you tell me more about this, because this is the first ive heard of this haha, and im not really sure what the serial converter is
i got another question too, i read that to run the stock 200r4 i need to change out the throttle valve spring and get a different bracket for the tv cable? or could i just use the stock bracket thats still in the car, thats what i used with the carbed 350 that was in it and it worked fine so i dont see how it would be any different with a different motor under the carb?
and would the driveshaft yoke from the 200r4 interchange with one from a th350? the built the350 in my 71 monte has a 6" tailhousing on it so its the same length as the 200r4 so i might just do that, if theyre not the same its no big deal ill just switch the yokes on the 2 cars
i got another question too, i read that to run the stock 200r4 i need to change out the throttle valve spring and get a different bracket for the tv cable? or could i just use the stock bracket thats still in the car, thats what i used with the carbed 350 that was in it and it worked fine so i dont see how it would be any different with a different motor under the carb?
and would the driveshaft yoke from the 200r4 interchange with one from a th350? the built the350 in my 71 monte has a 6" tailhousing on it so its the same length as the 200r4 so i might just do that, if theyre not the same its no big deal ill just switch the yokes on the 2 cars
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08-15-2012, 07:18 PM
#8
on the intake u buy,, u get some brackets for sttuff like that,,, and the yokes on the 200r4 is the same as a 350 and glide..... the serial port is what on ur laptop where u can program your timing instead of the chips...
08-16-2012, 06:12 AM
#10
I don't know the answer about the TV cable or trans yokes. Someone on here should know.
08-18-2012, 02:09 PM
#11
Go to the MSD site, look up the 6010 and get the adapter they recommend. That way you know you won't have trouble getting it to work. For the TV cable, it depends on what carb you run. Holley makes Throttle Valve corrector brackets that bolt to the side of the carb to give you the correct geometry. Look them up at Summit so you can see what I am talking about.
Last edited by LS1MCSS; 08-18-2012 at 02:14 PM.
08-18-2012, 02:21 PM
#12
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could you tell me more about this, because this is the first ive heard of this haha, and im not really sure what the serial converter is
i got another question too, i read that to run the stock 200r4 i need to change out the throttle valve spring and get a different bracket for the tv cable? or could i just use the stock bracket thats still in the car, thats what i used with the carbed 350 that was in it and it worked fine so i dont see how it would be any different with a different motor under the carb?
and would the driveshaft yoke from the 200r4 interchange with one from a th350? the built the350 in my 71 monte has a 6" tailhousing on it so its the same length as the 200r4 so i might just do that, if theyre not the same its no big deal ill just switch the yokes on the 2 cars
i got another question too, i read that to run the stock 200r4 i need to change out the throttle valve spring and get a different bracket for the tv cable? or could i just use the stock bracket thats still in the car, thats what i used with the carbed 350 that was in it and it worked fine so i dont see how it would be any different with a different motor under the carb?
and would the driveshaft yoke from the 200r4 interchange with one from a th350? the built the350 in my 71 monte has a 6" tailhousing on it so its the same length as the 200r4 so i might just do that, if theyre not the same its no big deal ill just switch the yokes on the 2 cars
I'm not sure about the throttle valve spring.
