First time MSD Total Loss Install & Setup

[Pablo]

i believe it helps you set your static timing more precisely

Yep,

if ur pushing it to the edge with 30*+ advance u don't want to be guesstimating with the marks on the wheel. If ur going soft with 20-25* u can get away with the big marks on the wheel. My thought is that ur using TL to get that last bit of performance you might as well push it and get it all. To each his own...


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[Byeai]

Yes if your going 25 and lower don't worry about a gauge if your going 25 and up use it it way worth it especially at 34 degrees advance and your builder says don't go any farther

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[BrightE's]

I picked up the foulers Matt linked to and a dial gauge from HF this weekend. I'm going to crack my fly wheel cover open this week and hopefully get to setting the thing up.

I may be getting ahead of my self, but, should I stray much from the default setup in the instruction manual? I am looking to get as much bottom end punch as possible, and will essentially never be WOT.

My setup is pretty basic.
-38's jetted for B-pipe
-B-Pipe
-701 with 37cc domes (175psi)
-Solas mag 144 w/stubby cone, 9/15 hooker prop.
-Carbon Superfreak

 

[Byeai]

How much timing advance do you need
What gas are you using

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[BrightE's]

How much timing advance do you need
What gas are you using

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I'm not sure. Maybe 29 initial advance? That doesn't seem too steep. In Wisconsin where I usually fill up I run 93 octane.

 

[augustaf]

See the slots in the red stator plate? That is how base timing is adjusted (usually 25-32 degrees before TDC depending on your taste). The msd control module needs that info.

 

[BrightE's]

Cool thanks! And the idea being that you need higher compression yo get that initial advance up higher right?

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[Byeai]

Yes but then run race gas

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[BrightE's]

If I'm just running 93 octane is 29 initial advance a safe place go start?

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[Byeai]

Should be

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[wanderer1]

With what compression? You'll find out

 

[BrightE's]

175psi

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[wanderer1]

Some would say that it will be fine, some will say it won't, with a hot timing curve. you'll find out.

 

[BrightE's]

I guess it is better to find out the limits of advancing time on a getting tired 701 than a fresh new big piston build. I'll just use that as my excuse for not having a sicko beast engine yet.

 

[augustaf]

If I'm just running 93 octane is 29 initial advance a safe place go start?

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you'll be fine with that, since your cranking pressure is 175 psi. Keep in mind, you need to start retarding at 4500 rpm!

 

[BrightE's]

Retarding, as in drawing back the advancement of the timing starting at 4500RPM? It's a slope reduction to max rev limit right?

 

[augustaf]

Yes, it's a slope reduction down to 16 degrees. but way before the rev limit! Please, look up suggested curves or you will grenade it.

 

[BrightE's]

Yes, it's a slope reduction down to 16 degrees. but way before the rev limit! Please, look up suggested curves or you will grenade it.

I don't know where to find them for my engine setup! :-( Otherwise I would. Best I know is the suggested starting settings from the MSD setup instructions.

 

[augustaf]

Here's a typical curve for the Epic, similar applies to all, even though adjustment for Msd is either with pug in modules on the sgl. channel analog or with dip switches if dual channel.

 

[augustaf]

I don't know where to find them for my engine setup! :-( Otherwise I would. Best I know is the suggested starting settings from the MSD setup instructions.

Yes, go with the set up instructions. While certain engine/pipe combinations might respond differently to curves, that is grossly overrated!