So I run a lot of extra stuff in my car, 2 12's @ 800-1200 watts and neons underneath the car and in the truck which is another 100 watts.

I did some research and did a big 3 upgrade with 4awg wire since it was only $3/ft at the local shop and they didn't have loose 2 or 0 awg.

I ran an extra wire from the battery negative to chassis and an extra engine ground to the battery negative.
I haven't gotten around to it yet but I was going to run an extra positive wire from the alternator to the battery.

So now when I drive off the engine kinda lags, I did a throttle reset and it still happens with the wires hooked up.

I have dianosed that the extra engine ground wire is causing the throttle to mess up. Is there a certain spot I should have this wire hooked up to? Right now I just have it hooked up to a bolt on the valve cover.

Thanks for any help you can provide.

 

All large or important ground wires connected to the engine should be on a bolt to the block when possible.

 

I agree with this ^^^

I felt the need to let loose some juice and studied the Big 3, and quickly realized it isn't so much necessary. The Alternator to Starter and Battery is 1/0 --- Literally no need to replace or add to. The battery ground to chassis I added a 5 gauge. Other than that, I put new terminals and cut back the coroded ends and it helped my flickering lights quite a bit. After that I put a 1 farad CAP in and no more flickering at all. - Edit on CAP, it's a 1 farad but probably only good for .5 (you have to be careful on claim vs performance of those things.

My tweeters are 175W RMS each and my 2 ten's are 150W RMS each. So 650W continuous. I would get a good CAP and call it a day.

 

It's a good job these kids can read, as they will be deaf soon enough.

 

What did you say?
Huh?
Speak up.

Edit: the wire grounded to the valve cover is a honda thing. this is not a Honda

 

I find it interesting that:

"I have dianosed that the extra engine ground wire is causing the throttle to mess up. Is there a certain spot I should have this wire hooked up to? Right now I just have it hooked up to a bolt on the valve cover."

I would like to measure that with a scope.

 

Perhaps someone upgraded this before you? The service manual shows the pos.&neg. leads as 2AWG. Stepping up 2 sizes (from OEM to 1/0) is a nice upgrade.

 

Apparently someone did, I had to extend it once I got the V8, from the alternator to the starter and bought 1/0... It was the exact same size as what I bought. It all looks stock though, so I just assumed...

 

With all that rewiring, no telling where your problem is. That said, a good LARGE capacitor should take care of the peak voltage handling BUT you might have to slave a battery into the system (if it is the power demands for the stereo and all connections are nominal for the system and the car). If it is not stereo system related, that is another ball - o - wax that caps and batteries cannot correct. Just my $0.02 worth.