Author Topic: Distributor "curving" alternative  (Read 1566 times)

Offline shadango

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Distributor "curving" alternative
« on: March 02, 2018 - 09:03:08 AM »
So for years now I have put off considering playing with my distributor as far as the spring setup therein....its a stock distributor.

I have a cam ...a fairly lump one....and no doubt I would benefit from some degree of curving it....

On the slant 6 forum someone is selling packs of mopar springs -- 3 pairs ...for $27.

Of course that means a lot of trial and error and patience and testing.....and potentially a lot of distributor in/outing. LOL

Came across this in my research....

https://www.summitracing.com/parts/msd-8504/applications/make/plymouth/year/1976

Pricey, but has infinite adjustability....and useful for future builds maybe....

Oddly it seems to be available ONLY for 340s and 360s...not 318s....and of course I have a 318.

I thought the 318 and 360 distributors were the same ?   Anyone have any experience with these?




Offline 1 Wild R/T

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Re: Distributor "curving" alternative
« Reply #1 on: March 02, 2018 - 10:58:20 AM »
It will fit...   For $460 it had better do something pretty special....   
JS27N0B 70 Challenger R/T Convertible  FJ5 Sublime, Show Poodle w/90,000 miles since resto
WS27L8G 68 Coronet R/T Convertible  PP1 Bright Red, Project
RM21H9E 69 Road Runner Coupe R4 Performance Red, Sold...
5H21C  65 Falcon 2 dr Wagon... Dog Hauler...

Offline 70chall440

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Re: Distributor "curving" alternative
« Reply #2 on: March 02, 2018 - 05:17:10 PM »
while I would agree that it is temping, I think you might be over thinking this to a degree. There is enough information out there (and on here) that you should be able to narrow down what you need and only have to play with it a little. That said, this new distributor would be very easy but putting in springs is not all that hard. I agree, $460 is a lot for most likely a modicum of gain.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 734406pk

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Re: Distributor "curving" alternative
« Reply #3 on: March 02, 2018 - 07:50:46 PM »
 :iagree:
1973 Challenger 440 6 pack auto 3.91 rear
2012 Dodge Ram 3500 dually 6.7 Cummins Fleece EFI Live
1973 Challenger 318 2bbl auto 2.73 rear 22.5 mpg RIP
1970 Challenger TA 340 4bbl auto-Sold and sad
1999 Dodge Ram 3500 dually 5.9 Cummins Fleece tuned VGT-sold
1995 Kawasaki ZX1100E & still alive

Offline Topcat

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Re: Distributor "curving" alternative
« Reply #4 on: March 03, 2018 - 01:31:41 PM »
Save yourself $375.00

Limiter plate.
Drops right into stock Mopar distributor.

http://www.4secondsflat.com/J685S%20instructions.htm

Mike, Fremont, CA.


Offline shadango

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Re: Distributor "curving" alternative
« Reply #5 on: March 15, 2018 - 01:49:31 PM »
Save yourself $375.00

Limiter plate.
Drops right into stock Mopar distributor.

http://www.4secondsflat.com/J685S%20instructions.htm


Reading thru the instructions, it still suggest replacing the springs.....     I have to imagine there is trial an error in that regard, no?     All it says the plate does is "correct the mechanical limits in your distributor ".......     :clueless:

I guess I am just restless....REALLY want a stroker engine and just cant do it right now....

Looking to do something to the 318 I have that might give her more punch down low and mid range....top end it runs good...no pinging, pulls hard (for a 318) etc.....dont want to open up a can of worms I guess...figured that adjustable deal would let me more easily try different settings.....rather than play with springs and where the plate is set at etc....
« Last Edit: March 15, 2018 - 01:56:17 PM by shadango »

Offline Topcat

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Re: Distributor "curving" alternative
« Reply #6 on: March 17, 2018 - 01:34:55 AM »
Needing to change the springs won't be as much a priority.

I left the originals and it's running very well.
Mike, Fremont, CA.