Previous Thread
Next Thread
Print Thread
Page 2 of 2 1 2
Re: Help! Did my MSD digital 7 die? [Re: RThunder] #2689543
08/19/19 08:38 PM
08/19/19 08:38 PM
Joined: Mar 2010
Posts: 926
glendora, ca.
D
Deepockets Offline
super stock
Deepockets  Offline
super stock
D

Joined: Mar 2010
Posts: 926
glendora, ca.
I had a 7530 that died at the track. ran fine and shut the car off. When I went to start it had no spark. I had to replace it with the 7530T since the first one was obsolete. I now run the Grid and also keep a spare one in the trailer. You just don't know what sets them off.

Re: Help! Did my MSD digital 7 die? [Re: Deepockets] #2689551
08/19/19 09:12 PM
08/19/19 09:12 PM
Joined: Jan 2003
Posts: 8,613
Frostbitefalls (Rocky&Bullwink...
G
gregsdart Offline OP
master
gregsdart  Offline OP
master
G

Joined: Jan 2003
Posts: 8,613
Frostbitefalls (Rocky&Bullwink...
Mine did the same. It ran great then nothing.

Re: Help! Did my MSD digital 7 die? [Re: fast68plymouth] #2693933
09/03/19 12:01 PM
09/03/19 12:01 PM
Joined: Nov 2011
Posts: 139
PA
Harry's Taxi 2 Offline
member
Harry's Taxi 2  Offline
member

Joined: Nov 2011
Posts: 139
PA
I was able to try out the new 150# seat-440# open springs this weekend and that was the problem with the 6600 rpm limit......it went to 7100 without a hiccup.

Now as for being any faster, it didn't seem to add much to the power level yet. I can at least test shift points now and the fuel curve, while needing some tweaking, is now making sense too.

It did equal my best previous e.t of 9.12 in 60* 1800 D.A. weather a few months ago. It was 80* 2200 D.A. on Saturday's test session.

Thanks (fast68plymouth) for the spring pressure advise .


'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.

NOS-used when losing since 1940. "Trust the plan"-Q.
Re: Help! Did my MSD digital 7 die? [Re: Harry's Taxi 2] #2694022
09/03/19 04:56 PM
09/03/19 04:56 PM
Joined: Jan 2003
Posts: 12,216
So. Burlington, Vt.
F
fast68plymouth Offline
I Live Here
fast68plymouth  Offline
I Live Here
F

Joined: Jan 2003
Posts: 12,216
So. Burlington, Vt.
up

I was pretty sure it needed more spring.

Glad that worked out for you.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Help! Did my MSD digital 7 die? [Re: fast68plymouth] #2694324
09/04/19 12:27 PM
09/04/19 12:27 PM
Joined: Nov 2011
Posts: 139
PA
Harry's Taxi 2 Offline
member
Harry's Taxi 2  Offline
member

Joined: Nov 2011
Posts: 139
PA
I'm actually more disappointed that I didn't think to look into spring pressures more and question Mike Jones about it. I've been very pleased with his cams....I guess he just made a mistake as any of us could have.

I looked (in hindsight) at pretty much every catalog cam of similar size (and smaller w/.842 lobes) and they all recommend over 400# of open pressure.


'86 Maple Grove KOS Mopar low qualifier......true street legal with no power adders.

NOS-used when losing since 1940. "Trust the plan"-Q.
Page 2 of 2 1 2

Advertisement
Sponsored Link
Moparts Newest Topics
51 Dodge B1 Build
by belv2vert66. 09/21/19 02:12 PM
97 yr old Veteran re-jumps “Bridge Too Far”
by 360view. 09/21/19 01:29 PM
It had a Hemi
by jcc. 09/21/19 01:01 PM
Brake.light on?
by robertop. 09/21/19 12:55 PM
Moparts Recent Posts
Who actually owns Moparts?
by John Brown. 09/21/19 03:07 PM
1968 318 water pump on a 1973 engine
by RapidRobert. 09/21/19 02:54 PM
Brake.light on?
by RapidRobert. 09/21/19 02:52 PM
51 Dodge B1 Build
by belv2vert66. 09/21/19 02:40 PM

Powered by UBB.threads™ PHP Forum Software 7.7.1