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#1072154 - 10/04/21 01:23 PM Overdrive  
Joined: May 2014
Posts: 96
Ubowl Offline
Member
Ubowl  Offline
Member

Joined: May 2014
Posts: 96
Cape Coral Fl
I changed the distributor to a self contained hei one. Also changed my carb to a edlebrock. My question is will I now lose my overdrive? If so what do I have to do to be able to have it operate. Thanks John

#1072156 - 10/04/21 03:32 PM Re: Overdrive [Re: Ubowl]  
Joined: May 2007
Posts: 5,026
Buick Runner Offline
10+ Year
Buick Runner  Offline
10+ Year
Member

Joined: May 2007
Posts: 5,026
Dharma station 1 the Hydra
You don't lose overdrive, you lose torque convertor lockup as its computer controlled. Your 3 options are to remove the aftermarket parts you installed and restore the superior original factory Qjet carb and dist, install a toggle switch to manually engage and disengage the lockup which is a PITA to use, or buy an aftermarket lockup controller which do not work as well as the original factory ECM. This is partly why its better to keep the CCC system intact.

Last edited by Buick Runner; 10/04/21 03:52 PM.

SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.

2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes, and Jmod.

Never argue with an idiot.
They will just drag you down to their level and beat you with experience.
#1072169 - 10/05/21 12:44 PM Re: Overdrive [Re: Buick Runner]  
Joined: May 2014
Posts: 96
Ubowl Offline
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Ubowl  Offline
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Joined: May 2014
Posts: 96
Cape Coral Fl
Thanks for the response

#1072180 - 10/06/21 08:17 AM Re: Overdrive [Re: Ubowl]  
Joined: Jan 2008
Posts: 1,198
FinallySS Offline
10+ Year
FinallySS  Offline
10+ Year
Member

Joined: Jan 2008
Posts: 1,198
Nice Sunny Hawaii
I have pretty much the same setup with Eddy carb with vacuum can dizzy. Listen to buick Runner. Keep your CCC setup.

But just in case you decided to run the current setup, I use B&M lock-up kit, which is rather expensive (This one. https://www.summitracing.com/parts/bmm-70244 . Holy ^*&%! I bought this at around $150 or so, maybe 10 years ago? Must be that COVID..................). It has a speed sensor, so it's way better than the vacuum switch the cheaper one comes with. I have mine set at around 45 mph, so if the traffic is going around at that speed, it keeps going in and out of lock up, which at this point I usually turn the switch off until I go faster.

One last thing. Since you have Eddy carb, make sure your TV cable have correct geometry and adjusted correctly. If not, you'll fry your trans in no time.

Last edited by FinallySS; 10/06/21 08:18 AM.

1986 Silver MCSS - Poly bushing and Hotchkis spring w/Bilstein, Posi w/3.73, MSD 6-AL, E-Brock 600cfm, Aluminum 2-row radiator.
1986 Black MCSS - R.I.P............Finally.
#1072197 - 10/07/21 04:44 PM Re: Overdrive [Re: Ubowl]  
Joined: May 2014
Posts: 96
Ubowl Offline
Member
Ubowl  Offline
Member

Joined: May 2014
Posts: 96
Cape Coral Fl
Thanks for the reply


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