Anyone have the battery in the back?

Stang_ROTY · 05-02-2003, 06:07 PM

Where are you grounding your negative wire going to the negative terminal? I had mine bolted into the rear with the gas tank strap (pass. side) and I had big problems with the starter dragging once the car was hot. I didn't want to drill into the subframes because I have steel braided fuel line running down the subframe and there's not much room, plus the negative cable is really short. The other weird thing was when the starter was dragging the negative terminal was reading -2.4 vlts....??

tireburner163 · 05-02-2003, 11:28 PM

I had my amp grounded to the rear-seat frame. That should be about the same thing. Just undo one of the bolts on the folding back seat and install your ring terminal, then bolt her on down. You could also try grounding it to the floor pan.

Bad89stang · 05-02-2003, 11:35 PM

Mine is grounded on the seatbelt bolt. Just unbolt the seatbelt and put it back in with your ground wire attached and you're done. Works great.

Stang_ROTY · 05-03-2003, 09:58 AM

OK Thanks. I'm going to give that a shot

Cody2552 · 05-03-2003, 10:53 AM

From my friends experiences, they got a ground cable to go the length of the car back to the engine bay so it would be just like the batterty was up front. Why? B/c they say the eec-iv had a grounding problem and shorted out and wouldn't work. Thats what i have also read in alot of tech articles.

Bad89stang · 05-03-2003, 11:03 AM

There are thousands of people who ground their battery to the back area of the car and it works fine. You can use the quad shock bracket as well. You want the ground cable to be no more than a couple feet long. I definitely would not run it the length of the car.

The EEC has it's own grounding cables/wires. As long as you kept them in tact you will be fine.

Stang_ROTY · 05-07-2003, 11:54 AM

SO do you think that grounding to the gas tank strap boss is a bad ground and the cause for my negative voltage reading of -1.6??

I can't understand that negative voltage reading for the life of me....

On a side note, I noticed the other day that my idle changed slightly when I rolled my windows up....maybe that bad ground is the reason?

QUOTE]Originally posted by Bad89stang
There are thousands of people who ground their battery to the back area of the car and it works fine. You can use the quad shock bracket as well. You want the ground cable to be no more than a couple feet long. I definitely would not run it the length of the car.

The EEC has it's own grounding cables/wires. As long as you kept them in tact you will be fine. [/QUOTE]

Bad89stang · 05-07-2003, 12:00 PM

it is possible. you want the ground to go to some part of the framerail.

BilLster · 05-07-2003, 01:09 PM

i ground mine to the rear support and wired in a cut off at the same time but as for the window ground my stereo cuts out when the window is half up.

as for the strap there its woven wire and there notorice for bad conductivity its not really a positive ground just a discharge ground

like replacing a engine stap that glows red with 4 gauge wire and it stops

hope the car works out for you.

JaxTheDJ · 05-07-2003, 07:08 PM

Your solution is simple,I have my battery in the back also,with the ground to the frame,what I DID do is run an extra ground to the engine from the firewall,never had a starting problem.

Bad89stang · 05-07-2003, 07:13 PM

Quote:

Originally posted by JaxTheDJ
what I DID do is run an extra ground to the engine from the firewall,never had a starting problem.

This is a good point. I was assuming that you have good grounds from the engine to the frame. I have one going from the engine to the body and one to the subframe area.

05-02-2003, 06:07 PM	#1
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	Anyone have the battery in the back? Where are you grounding your negative wire going to the negative terminal? I had mine bolted into the rear with the gas tank strap (pass. side) and I had big problems with the starter dragging once the car was hot. I didn't want to drill into the subframes because I have steel braided fuel line running down the subframe and there's not much room, plus the negative cable is really short. The other weird thing was when the starter was dragging the negative terminal was reading -2.4 vlts....?? __________________ Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more

05-02-2003, 11:28 PM	#2
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	I had my amp grounded to the rear-seat frame. That should be about the same thing. Just undo one of the bolts on the folding back seat and install your ring terminal, then bolt her on down. You could also try grounding it to the floor pan. __________________ 1987 Buick T-type 1998 HD Electra Elide

05-02-2003, 11:35 PM	#3
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	Mine is grounded on the seatbelt bolt. Just unbolt the seatbelt and put it back in with your ground wire attached and you're done. Works great. __________________ You're gonna need your seatbelt

05-03-2003, 09:58 AM	#4
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	OK Thanks. I'm going to give that a shot __________________ Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more

05-07-2003, 11:54 AM	#7
Stang_ROTY Registered Member Join Date: Feb 2001 Location: Berkshire County - Massachusetts Posts: 735	SO do you think that grounding to the gas tank strap boss is a bad ground and the cause for my negative voltage reading of -1.6?? I can't understand that negative voltage reading for the life of me.... On a side note, I noticed the other day that my idle changed slightly when I rolled my windows up....maybe that bad ground is the reason? QUOTE]Originally posted by Bad89stang There are thousands of people who ground their battery to the back area of the car and it works fine. You can use the quad shock bracket as well. You want the ground cable to be no more than a couple feet long. I definitely would not run it the length of the car. The EEC has it's own grounding cables/wires. As long as you kept them in tact you will be fine. [/QUOTE] __________________ Red 1993 GT Street Machine Best E.T. - 12.41/Best MPH = 108 Engine is a 1969 351 block w/393 stroker kit. Dynamic Roller Myte C4, 8 pt cage. Edlebrock Performer heads and Victor Jr. EFI, FRPP 30lb injectors & Cartech fuel system. MSD ignition. Sothside Machine bars & Sub-frames, adj. upper's, 3.73's, Koni rear shocks, much more

05-03-2003, 10:53 AM	#5
Cody2552 Registered Member Join Date: Nov 2002 Posts: 68	From my friends experiences, they got a ground cable to go the length of the car back to the engine bay so it would be just like the batterty was up front. Why? B/c they say the eec-iv had a grounding problem and shorted out and wouldn't work. Thats what i have also read in alot of tech articles.

05-03-2003, 11:03 AM	#6
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	There are thousands of people who ground their battery to the back area of the car and it works fine. You can use the quad shock bracket as well. You want the ground cable to be no more than a couple feet long. I definitely would not run it the length of the car. The EEC has it's own grounding cables/wires. As long as you kept them in tact you will be fine.

05-07-2003, 12:00 PM	#8
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	it is possible. you want the ground to go to some part of the framerail. __________________ You're gonna need your seatbelt

05-07-2003, 01:09 PM	#9
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	i ground mine to the rear support and wired in a cut off at the same time but as for the window ground my stereo cuts out when the window is half up. as for the strap there its woven wire and there notorice for bad conductivity its not really a positive ground just a discharge ground like replacing a engine stap that glows red with 4 gauge wire and it stops hope the car works out for you. __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .

05-07-2003, 07:08 PM	#10
JaxTheDJ Registered Member Join Date: Aug 2002 Location: Jacksonville,Fla. Posts: 134	Your solution is simple,I have my battery in the back also,with the ground to the frame,what I DID do is run an extra ground to the engine from the firewall,never had a starting problem. __________________ Jack 1989 Mustang LX: Converted to Carb.650 AED Holley DP,Weiand Stealth Intake,Edelbrock Performer RPM Aluminum Heads,Hooker Super Comps, Ground Pounder Uppers and Lowers,Moroso Drag Springs,NEW COMP Xtreme Energy Cam and 1.6 RR. ,a few other goodies.*** New 1/4 times-12.50 1987 SC GT ( fast as hell) 2001 Powerstroke Tow Vehicle 1989 Coupe. Sometimes when you cry,no one sees your tears.......... Sometimes when you are happy,no one sees your smile......... But,FART just ONE time..........

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
I'm back.....And still Crazy.	Mercury	Blue Oval Lounge	14	10-30-2002 02:41 AM
I'm back, anyone miss me?	rustang girl	Blue Oval Lounge	18	10-10-2002 11:34 PM
Back in the Game......	1969Mach1	Blue Oval Lounge	27	10-08-2002 10:56 PM
Back from the Track - Good News/Bad News with Diablo	apenn	Modular Madness	1	09-22-2002 02:50 AM
Time to go back to school.	Unit 5302	Modular Madness	12	04-27-2002 03:46 PM