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Electronic Ignition ECU of choice? #2552615
09/20/18 11:43 PM
09/20/18 11:43 PM
Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda Offline OP
5.7L Hemi, 6spd
GoodysGotaCuda  Offline OP
5.7L Hemi, 6spd

Joined: Nov 2004
Posts: 25,050
Texas
My Warlock feels like it's dropping spark above 3,500rpm and surges pretty hard. I'd like to go ahead and get a backup ECU to have on hand and try while I'm looking for the root cause.

Is a parts store version a reasonable choice, or is there a particular vendor to seek out? Not looking for a $200 RevNAtor unless it's going to rock my world.


1972 Barracuda - 5.7L Hemi, T56 Magnum 6spd - https://www.facebook.com/GoodysGotaHemi
2020 RAM 1500
[img]https://i.imgur.com/v9yezP9.jpg[/img]
Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2552636
09/21/18 12:10 AM
09/21/18 12:10 AM
Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
I would go ahead & get a spare (I think rockauto just had a sale on em) & throw it on there to see if that is it. Not a fan of shotgunning parts at an issue but a spare ECU is always a good plan. Is the current one OE?


live every 24 hour block of time like it's your last day on earth
Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2552639
09/21/18 12:14 AM
09/21/18 12:14 AM
Joined: Mar 2006
Posts: 74
Stevensville, ON
F
Frank Raso Offline
member
Frank Raso  Offline
member
F

Joined: Mar 2006
Posts: 74
Stevensville, ON
The HEI system is better than the Mopar EI and the Mopar electronic distributor wires directly up to it. I have a GM HEI module from a wreck in my car.

See HEI Ignition Upgrade.

Re: Electronic Ignition ECU of choice? [Re: Frank Raso] #2552647
09/21/18 12:34 AM
09/21/18 12:34 AM
Joined: Jan 2003
Posts: 1,121
State, country, etc.
G
gss Offline
super stock
gss  Offline
super stock
G

Joined: Jan 2003
Posts: 1,121
State, country, etc.

Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2552863
09/21/18 02:22 PM
09/21/18 02:22 PM
Joined: Mar 2005
Posts: 403
Colorado front range
B
BcudaChris Offline
mopar
BcudaChris  Offline
mopar
B

Joined: Mar 2005
Posts: 403
Colorado front range
$$$ but I couldn't be happier with my FBO 688 box. Might be overkill for your purposes though.

Re: Electronic Ignition ECU of choice? [Re: BcudaChris] #2553542
09/23/18 10:24 AM
09/23/18 10:24 AM
Joined: Jul 2005
Posts: 1,770
Wethersfield,CT
Ray440 Offline
top fuel
Ray440  Offline
top fuel

Joined: Jul 2005
Posts: 1,770
Wethersfield,CT
Here are the choices fro Rockauto. Has any tried the Standard Motor LX101? I think my orange box is going bad and was going to give this one a try.

www.rockauto.com/en/catalog/plymouth,1974,roadrunner,5.2l+318cid+v8,1240704,ignition,ignition+control+module+(icm),7172


1969 Plymouth Road Runner 440 auto
2017 Ram 1500 Quad Cab 5.7 Hemi
Re: Electronic Ignition ECU of choice? [Re: Ray440] #2553624
09/23/18 01:55 PM
09/23/18 01:55 PM
Joined: Jan 2007
Posts: 531
Charlotte, NC
Kowal Offline
mopar
Kowal  Offline
mopar

Joined: Jan 2007
Posts: 531
Charlotte, NC
If you don’t mind paying up...Bouchillon Performance still has some original Mopar units for sale...not off brand.

Last edited by Kowal; 09/23/18 01:55 PM.

'69 Hemi Charger 500, ‘70 U code Challenger R/T
(These and a bunch others at www.dkowal426.com)

P.J. O'Rouke: "The old car ran perfectly, right up until it didn't."
Re: Electronic Ignition ECU of choice? [Re: Ray440] #2553626
09/23/18 01:57 PM
09/23/18 01:57 PM
Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
Those are made in china now but I had one & it was fine till I sold the truck. Actually any 4 pinner (& a spare in your glove box) of any brand/type will suffice. The RA link wont open.


live every 24 hour block of time like it's your last day on earth
Re: Electronic Ignition ECU of choice? [Re: BcudaChris] #2553635
09/23/18 02:13 PM
09/23/18 02:13 PM
Joined: Jan 2003
Posts: 10,627
S.E.Ohio
Magnumguy Offline
I Live Here
Magnumguy  Offline
I Live Here

Joined: Jan 2003
Posts: 10,627
S.E.Ohio
Originally Posted By BcudaChris
$$$ but I couldn't be happier with my FBO 688 box. Might be overkill for your purposes though.


What is this and where can it be bought?


"Multiple Magnum owner since 1978!!"


https://www.facebook.com/groups/146952895354657/
Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2553642
09/23/18 02:30 PM
09/23/18 02:30 PM
Joined: Dec 2003
Posts: 36,840
South San Francisco, Californi...
MidPenMopar Offline
Looking for fun? Keep looking
MidPenMopar  Offline
Looking for fun? Keep looking

Joined: Dec 2003
Posts: 36,840
South San Francisco, Californi...
Here is the one i have on the road runner. It has dual circuits in case one fails. up

P9230002.JPG
Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2553643
09/23/18 02:32 PM
09/23/18 02:32 PM
Joined: Aug 2007
Posts: 566
WA
T
tman Offline
mopar
tman  Offline
mopar
T

Joined: Aug 2007
Posts: 566
WA
You can get the FBO at Mancini. Right now its 10% off with Promo code #FALL. Today is the last day of the promo code. You can Google that box for info.

Re: Electronic Ignition ECU of choice? [Re: RapidRobert] #2553645
09/23/18 02:36 PM
09/23/18 02:36 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
About to go away
Supercuda  Offline
About to go away

Joined: Sep 2007
Posts: 14,889
up yours
Originally Posted By RapidRobert
The RA link wont open.


It does if you cut and paste


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Electronic Ignition ECU of choice? [Re: Supercuda] #2553646
09/23/18 02:37 PM
09/23/18 02:37 PM
Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,039
Lincoln Nebraska
thanks bro


live every 24 hour block of time like it's your last day on earth
Re: Electronic Ignition ECU of choice? [Re: Magnumguy] #2554093
09/24/18 02:27 PM
09/24/18 02:27 PM
Joined: Mar 2005
Posts: 403
Colorado front range
B
BcudaChris Offline
mopar
BcudaChris  Offline
mopar
B

Joined: Mar 2005
Posts: 403
Colorado front range
Originally Posted By Magnumguy
Originally Posted By BcudaChris
$$$ but I couldn't be happier with my FBO 688 box. Might be overkill for your purposes though.


What is this and where can it be bought?


http://4secondsflat.com/Ignition.html

HRR688 ignition system

Don is also a great resource for all things carbureted fuel system and ignition related (and I'm sure for many other related things). The personal support that comes with his products is great.

Over the phone he's spotted more than one little thing I was overlooking out of frustration and he's got me on track.

If you're running a Mopar distributor, his tuning plate is the bomb too.


Chris

Re: Electronic Ignition ECU of choice? [Re: GoodysGotaCuda] #2554125
09/24/18 04:24 PM
09/24/18 04:24 PM
Joined: Jan 2003
Posts: 17,781
S.E. Michigan
ZIPPY Offline
I Live Here
ZIPPY  Offline
I Live Here

Joined: Jan 2003
Posts: 17,781
S.E. Michigan
For the cheap driver applications I've recently become a fan of the GM HEI module - Ford TFI coil - Mopar electronic distributor combination after trying it on my 440 C body. Makes a very nice strong spark. It is a $20 module, a $9 coil and it wires right up with parts store spade connectors. It's also easy to hide if desired.


Rich H.

Esse Quam Videri










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