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Dodge truck performance woes. #2816501
09/02/20 10:25 PM
09/02/20 10:25 PM
Joined: Oct 2003
Posts: 387
N.J. north west
1972challenger Offline OP
enthusiast
1972challenger  Offline OP
enthusiast

Joined: Oct 2003
Posts: 387
N.J. north west
I have an 86 Ram with a 318 and it has a lot of performance issues.

#1 - It missing a little under load despite a full tune up and a sound engine.

#2 - It seems to have the feeling a trans issues like it almost feels like it kicks down but the trans is sound and recently overhauled.

#3 - It lacks power even for an 86 2bbl.

First should I ditch the logic module/computer and go with an aftermarket carb and ignition? how did I work the lock up converter if I do? Or could I have things like the EGR opening at the wrong time or a vacuum issue?
Any help would be appreciated. The truck only has 60k on it but was sitting a while before I started driving it.

Re: Dodge truck performance woes. [Re: 1972challenger] #2816508
09/02/20 10:37 PM
09/02/20 10:37 PM
Joined: Nov 2003
Posts: 10,228
Colleyville
3hundred Offline
I Live Here
3hundred  Offline
I Live Here

Joined: Nov 2003
Posts: 10,228
Colleyville
Originally Posted by 1972challenger
I have an 86 Ram with a 318 and it has a lot of performance issues.

#1 - It missing a little under load despite a full tune up and a sound engine.

#2 - It seems to have the feeling a trans issues like it almost feels like it kicks down but the trans is sound and recently overhauled.

#3 - It lacks power even for an 86 2bbl.

First should I ditch the logic module/computer and go with an aftermarket carb and ignition? how did I work the lock up converter if I do? Or could I have things like the EGR opening at the wrong time or a vacuum issue?
Any help would be appreciated. The truck only has 60k on it but was sitting a while before I started driving it.


Dump the computer and retrofit an electronic ignition. You'll need a new distributor with advance mechanisms, that's about all the computer did anyway. The converter is not controlled by computer, no worries about that.


'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: Dodge truck performance woes. [Re: 3hundred] #2816570
09/03/20 09:06 AM
09/03/20 09:06 AM
Joined: Oct 2003
Posts: 387
N.J. north west
1972challenger Offline OP
enthusiast
1972challenger  Offline OP
enthusiast

Joined: Oct 2003
Posts: 387
N.J. north west
Thanks, That's what I wanted to do. I just waned to know what controlled the trans. I diffidently want to ditch the emissions system.

Re: Dodge truck performance woes. [Re: 1972challenger] #2816576
09/03/20 09:20 AM
09/03/20 09:20 AM
Joined: Nov 2003
Posts: 10,228
Colleyville
3hundred Offline
I Live Here
3hundred  Offline
I Live Here

Joined: Nov 2003
Posts: 10,228
Colleyville
I just recalled those carbs were jetted insanely lean, led to burned exhaust valves. The carbon canister is failure prone, carbon pellets can enter the float bowl and are just the right size to plug the main jets. I used to use a fuel filter in the vent line to keep debris out of the carburetor.


'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: Dodge truck performance woes. [Re: 3hundred] #2816592
09/03/20 10:13 AM
09/03/20 10:13 AM
Joined: May 2008
Posts: 171
Las Vegas, NV
C
chargerbr549 Offline
member
chargerbr549  Offline
member
C

Joined: May 2008
Posts: 171
Las Vegas, NV
You might have gotten a bad plug wire or possibly a spark plug, possibly the spark is jumping somewhere else instead of in the chamber under load.

I would ohm the plug wires and or look for bad spots on the insulation or boots.

Re: Dodge truck performance woes. [Re: 1972challenger] #2816661
09/03/20 01:13 PM
09/03/20 01:13 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Originally Posted by 1972challenger
I have an 86 Ram with a 318 and it has a lot of performance issues.

#1 - It missing a little under load despite a full tune up and a sound engine.

#2 - It seems to have the feeling a trans issues like it almost feels like it kicks down but the trans is sound and recently overhauled.

#3 - It lacks power even for an 86 2bbl.

First should I ditch the logic module/computer and go with an aftermarket carb and ignition? how did I work the lock up converter if I do? Or could I have things like the EGR opening at the wrong time or a vacuum issue?
Any help would be appreciated. The truck only has 60k on it but was sitting a while before I started driving it.



I had an 88 Ramcharger. It starting running like poo poo. It was the hall effect distributor. It ran good after that, but even better when I ditched the EGR, smog pump and converter. The thing even managed 17mpg combined.


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: Dodge truck performance woes. [Re: 3hundred] #2816663
09/03/20 01:13 PM
09/03/20 01:13 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Originally Posted by 3hundred
I just recalled those carbs were jetted insanely lean, led to burned exhaust valves. The carbon canister is failure prone, carbon pellets can enter the float bowl and are just the right size to plug the main jets. I used to use a fuel filter in the vent line to keep debris out of the carburetor.


88 318's where injected. the 360's got the carbs. WHOOPS 86...

Last edited by Mr.Yuck; 09/03/20 01:14 PM.

[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: Dodge truck performance woes. [Re: Mr.Yuck] #2817009
09/04/20 12:57 PM
09/04/20 12:57 PM
Joined: Oct 2003
Posts: 387
N.J. north west
1972challenger Offline OP
enthusiast
1972challenger  Offline OP
enthusiast

Joined: Oct 2003
Posts: 387
N.J. north west
I ordered the Proform old school Mopar style ignition system. I'd love to throw an Eddy carb and intake on it next or at least an early 70's 318 carb on it.







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