Carbureted LSX forum - 6012 timing help!!!

In just a few days i will be ready to fire up my 402 carb race motor what total timing should i be at ????iam total confused here.... If i used the plug in modules it shows no 6 curve module only has a total timing of 23 degrees???my sbc and bbc was about 35-40 degrees???

I would say total timing needs to be around 32-35*. What kind of racing are you doing with this engine?

True street 275 drag radial 200 shot max for this class,must weight 3150,hope iam going to be in the hunt..

I have mine set at 20* from 0-800rpm, then 32* from 800rpm till redline. I have tryed many total timing settings, but best mph was at 32*.
this should get you started

You need to get dyno time to see what it likes best or be ready to make consistent passes at the track and bump timing up from 30* 1 deg at a time till you lose MPH, then back down one.

I have mine set at 20* from 0-800rpm, then 32* from 800rpm till redline. I have tryed many total timing settings, but best mph was at 32*.
this should get you started

*3pedals*, have you ever tried one of the "pills" that came with your 6012 box. We had a big discussion with a guy on here awhile back who was running one of the "pills" that, according to MSD's specs in their instructions should have only had something like 23*, but he claimed it showed 32* on his laptop. There is something weird about the "pills that come with the 6012. The ones with the 6010 seem to match their specs, but not so the 6012. Anybody else tried the 6012 "pills" ??

I looked at the 6012 pill's specs in the instructions, and promptly filed them under G.

I would start at 26 and work your way up. with the cubes and if the heads are good you will not need much.

Tim

I looked at the 6012 pill's specs in the instructions, and promptly filed them under G.

I agree completely with *3pedals*. Don't even think about running 26* on a carbed engine. I can't remember the exact curve in mine, but it kept running better the Quicker I brought it in. I had something like 28* at 800 RPM with 32* at around 1200RPM and finally 34*@ can't remember. You probably ought to stay at 31-32* total until you get some experience with the engine. I still would like to see somebody try one of the "pills" and check it with a laptop.

is it safe to use the number one pill on initial start up?

I have mine running on pill 4. It has 24 total.

Tim

in just a few days i will be ready to fire up my 402 carb race motor what total timing should i be at ????iam total confused here.... If i used the plug in modules it shows no 6 curve module only has a total timing of 23 degrees???my sbc and bbc was about 35-40 degrees???

i guess where i going from here is......i have to know safe tune up on motor because iam spraying to with 200 shot and too much timing can burn it up

your just going to have to test, test, test, to find YOUR combo's ideal timing. Then you can set your nitrous tune-up after that.
If you want SAFE for initial startup, just use 1 of the pills, try #4 with 24* it will be safe for motor only. the nitrous tune-up is your baby..........

i was told from the tech guy at msd that the 6012 box has a map default setting of 20 degrees. so if you do not use the map sensor feature then it will add 20 degrees on top of the numbers on the chart.

Don't forget you can set a timing retard when using the nitrous. I would think 6-8 degrees retard depending on the fuel/comp being used.
Did you not read the instructions. Not trying to be a smart ass. Just saying it's all in the instructions. As for the timing curve it's all about YOUR engine combo. When we dyno stuff we start with a mild tune with mild timing and a bit rich. Then work back . As you add timing it leans a motor. Timing is about compression, cam, launch rpm ,vehicle wieght etc,etc.
In the end you have to give the motor what it wants.

Aleck

who you saying about reading the instructions?

if was to me then if you could explain that would be nice. maybe i was informed and i didnt not interpret the directions correctly

Sorry Olds, was talking to post starter.

Aleck

Sorry Olds, was talking to post starter.

Aleck

no reason to be sorry. i just wasnt sure lol .. but as far as i was told from the tech guy from msd about if you dont use the map sensor that it defaults to 20 degrees across the chart. is there truth to this?

I'm going to the shop to-day and I'll try to remember to bring the instructions home to scan and post. I think the vacuum/map sensor only works if hooked up and enabled.
Aleck

IIRC the directions are posted on MSDs website as well. Ill see if I can find them later today. Im also wondering if this default setting of 20 degrees is true as well. Eric L

I would say total timing needs to be around 32-35*. What kind of racing are you doing with this engine?
motor should not need 35 degrees of timing.

you 100% need to hook up the retard wire for use on nitrous. you WILL burn it up with high timing and nitrous.

do not use the pills for max ET, but they will get you up and running just fine.

http://www.msdignition.com/uploadedFiles/MSDIgnitioncom/Products/RPM_Timing_Controls/6012_instructions.pdf

Lets see if this works. 6012 instructions. Hope this helps, Eric L

any takers? lol

Yep, map doesnt do anything without actually having one connected.

I have mine running on pill 4. It has 24 total.

Tim

Just curious Tim....how is that 24* working out? Have you ever hooked up a laptop and maximized those 3 little guages down at the left bottom of the screen? It would be interesting to see what the degrees of timing it actually has under load at full throttle. Ron

curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6
rpm deg rpm deg rpm deg rpm deg rpm deg rpm deg
0 12 0 12 0 12 0 15 0 15 0 22
1000 20 1000 22 500 20 1000 28 800 30 800 32
2000 26 1700 27 1700 28 2000 29 2000 32 4500 32
4200 33 4300 29 4300 29 4300 29 4200 34 6700 36
6000 35 6000 36 6000 36 6000 36 6000 36 6800 36
6100 35 6100 36 6100 36 6100 36 6100 36 6900 36

The retard is adjustable from 0*-15* in 1* increments.
Also has adjustable minimum and max timing.
Looking at these tables I know I will not be using a pill/module.
Nice thing is I can use our dyno to see what the motor likes. Then I can try it at the track. Some cars like a bit of timing retard in high gear if they are big,heavy or large frontal area causing drag.

Aleck

my camaro ran its best MPH (121) with 32*, but repeated that mph all the way up to 36* . I have my curve set up with a 2* reduction at 5000rpm,which is where I beleive torque peak is.the reduction begins at 4k,drops 2* out at 5k, and is back to full timing by 6K. This did not make any difference in mph, but I programmed it in there since I cant get any better than 91 octane, and I dont even trust it to be 91
Barrett