MSD Tech Support Forums

Go Back   MSD Tech Support Forums > MSD Ignition Forums > Installation Questions

Installation Questions Wiring and Tech Information

Reply
 
Thread Tools
  #1  
Old 11-12-2012, 05:10 AM
mathblais mathblais is offline
Junior Member
 
Join Date: Nov 2012
Posts: 8
Default MSD 7730 question

Planning on installing a 7730 PowerGrid next summer. And I do have some questions about actual setup.

First question, is what do I do with HEI distributor? I would suppose I need to lock both mech & vacuum advance so it doesn't mess up the timing curve programmed in powergrid.

Second question, is what's the best suggestion to get start up timing curve? Best idea i have is to kinda write down current timing with timing gun then start from there?

Quick Car specs:
pontiac v8 engine
hei distributor
msd 6al
2 stage nitrous (might wait a bit before turning that on!)
transbrake
line lock
Reply With Quote
  #2  
Old 11-13-2012, 10:23 AM
msdtech1955's Avatar
msdtech1955 msdtech1955 is online now
Senior Member
 
Join Date: Jan 2008
Posts: 8,710
Default

Quote:
First question, is what do I do with HEI distributor? I would suppose I need to lock both mech & vacuum advance so it doesn't mess up the timing curve programmed in powergrid.
depends on what timing changes you are doing (if retarding the timing more then 15 degrees)
Reply With Quote
  #3  
Old 11-13-2012, 10:28 AM
msdtech1955's Avatar
msdtech1955 msdtech1955 is online now
Senior Member
 
Join Date: Jan 2008
Posts: 8,710
Default

Quote:
Second question, is what's the best suggestion to get start up timing curve? Best idea i have is to kinda write down current timing with timing gun then start from there?
yes, you could do that ...but that will have to be something you can play with to see what the motor likes.

7730 launch retard web.jpg

7730 start retard jpeg.JPG
Reply With Quote
  #4  
Old 11-13-2012, 01:35 PM
mathblais mathblais is offline
Junior Member
 
Join Date: Nov 2012
Posts: 8
Default

Quote:
Originally Posted by msdtech1955 View Post
depends on what timing changes you are doing (if retarding the timing more then 15 degrees)
Well I would kinda like to remove those mechanical & vacuum anyway, would that be a problem. Was even thinking of going full EFI anyway...
Reply With Quote
  #5  
Old 11-13-2012, 01:52 PM
msdtech1955's Avatar
msdtech1955 msdtech1955 is online now
Senior Member
 
Join Date: Jan 2008
Posts: 8,710
Default

unfortunately, the h.e.i. does not have an adjustable rotor for phasing....
so. i would look into a billet distributor...8563
and a 84211 rotor
Reply With Quote
  #6  
Old 11-13-2012, 02:05 PM
mathblais mathblais is offline
Junior Member
 
Join Date: Nov 2012
Posts: 8
Default

Quote:
Originally Posted by msdtech1955 View Post
unfortunately, the h.e.i. does not have an adjustable rotor for phasing....
so. i would look into a billet distributor...8563
and a 84211 rotor
so if I understand currectly, in order to get rid of mechanical & vacuum and only use the programmed curve within the powergrid 7730, I would also need the billet distributor and the 84211 rotor? Do I absolutely need a crank trigger?

And then is there any instruction I could get in order to figure everything out and be ready for the transition.

I still don't understand why I would need that distributor? Can't i achieved the same thing with standard distributor?
Reply With Quote
  #7  
Old 11-13-2012, 03:00 PM
msdtech1955's Avatar
msdtech1955 msdtech1955 is online now
Senior Member
 
Join Date: Jan 2008
Posts: 8,710
Default

Quote:
And then is there any instruction I could get in order to figure everything out and be ready for the transition.

I still don't understand why I would need that distributor? Can't i achieved the same thing with standard distributor?
your changing the timing electronically...( from 20 to a 30 degree curve)
so proper rotor phasing is needed.

www.msdvideos.com ( rotor phasing and checking timing)

also, the timing will be more accurate with a cranktrigger .

Quote:
Well I would kinda like to remove those mechanical & vacuum anyway, would that be a problem. Was even thinking of going full EFI anyway...
11-13-2012 10:28 AM
if you go e.f.i.....you will need to do the same thing ( what ever is controlling the timing curve)
Reply With Quote
  #8  
Old 11-13-2012, 03:01 PM
msdtech1955's Avatar
msdtech1955 msdtech1955 is online now
Senior Member
 
Join Date: Jan 2008
Posts: 8,710
Default

Quote:
And then is there any instruction I could get in order to figure everything out and be ready for the transition.
depends on the number of degrees your using for the timing curve.
and also , if you go efi....( what unit your using and the requirements of parts to make it work )

( crank trigger -cam sync---etc.)
Reply With Quote
  #9  
Old 11-13-2012, 07:48 PM
mathblais mathblais is offline
Junior Member
 
Join Date: Nov 2012
Posts: 8
Default

ok so if I would want to go progressively I could start with
1 - distributor & rotor & power grid
2 - crank trigger

Is that correct?
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 11:31 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
2011 MSD Performance