Posted By: clownzilla
Question about Mopar (orange) ECU box. - 07/06/08 03:26 PM
Do the orange mopar ECU's have a built in rev limiter?
Question about Mopar (orange) ECU box.
Posted By: stumpy
Re: Question about Mopar (orange) ECU box. - 07/06/08 03:37 PM
No.
Posted By: Ramman
Re: Question about Mopar (orange) ECU box. - 07/06/08 03:38 PM
In stock applications I've always found the valve springs act as the rev limiter before the ECU gives up. 
Posted By: clownzilla
Re: Question about Mopar (orange) ECU box. - 07/06/08 04:12 PM
Recommendations for ignition controller, rev limiters?
Posted By: 451Mopar
Re: Question about Mopar (orange) ECU box. - 07/06/08 07:18 PM
Quote:
Recommendations for ignition controller, rev limiters?
There are a bunch avaliable.
Crane HI-6 (rotory dial rev-limit, and optional retard.)
MSD 6AL (takes rev-limit "pills")
MSD Digital 6 (rotory dial rev-limit, built in two-step limiter, I think had retard capability too.)
Summit Racing just came out with some ignition boxes too, but I don/t know much about them.
Posted By: Anonymous
Re: Question about Mopar (orange) ECU box. - 07/06/08 07:24 PM
im very happy with my summit box 
Posted By: CrAzYMoPaRGuY
Re: Question about Mopar (orange) ECU box. - 07/07/08 03:56 AM
The newer Mopar Performance orange boxes will never get my endorsement, as I have had several fail. I run chrome boxes on everything now with a factory style ECU that I own, even my motorhome.
My orange boxes that have failed have all had restarting issues, no fire in the hole when the engine was warm and sat for 10-15 minutes. They basically restarted when they felt like it.
I still have one of the new orange boxes sitting in the glovebox in my motorhome, it failed within a week, it's not my spare, I just never got around to tossing it.
I like the MSD digital 6 box too, it's what I chose for my Coupe.
My orange boxes that have failed have all had restarting issues, no fire in the hole when the engine was warm and sat for 10-15 minutes. They basically restarted when they felt like it.
I still have one of the new orange boxes sitting in the glovebox in my motorhome, it failed within a week, it's not my spare, I just never got around to tossing it.
I like the MSD digital 6 box too, it's what I chose for my Coupe.
Posted By: Anonymous
Re: Question about Mopar (orange) ECU box. - 07/07/08 04:13 AM
Quote:
Do the orange mopar ECU's have a built in rev limiter?
kinda.. the voltage drops quite a bit after 6000rpm or so.
Posted By: Jeremiah
Re: Question about Mopar (orange) ECU box. - 07/07/08 05:37 AM
I would throw a MSD6AL in it and be done. If you ever want a two-step or a multi-stage timing retard you can add them on.
J
J
Posted By: AARCONV
Re: Question about Mopar (orange) ECU box. - 07/08/08 01:12 AM
i found my new orange box from the 80's and just changed it out for my orange one that melted down the firewall....guess these newer ones melt....still works ...maybe keep it as a spare....
Posted By: dogdays
Re: Question about Mopar (orange) ECU box. - 07/08/08 04:43 PM
I'm very happy with Accel 300+ boxes, they have a rev limiter that you can set and I have over 125K miles on one in my '93Sub.
But my '64Dog has a Direct Connection orange box and nary a hiccup from it either. I think the later orange boxes may not be as reliable.
R.
But my '64Dog has a Direct Connection orange box and nary a hiccup from it either. I think the later orange boxes may not be as reliable.
R.
Posted By: Sinitro
Re: Question about Mopar (orange) ECU box. - 07/08/08 05:08 PM
Quote:
In stock applications I've always found the valve springs act as the rev limiter before the ECU gives up.
The hydraulic lifters will float before the springs..