Grounding wires help
 

I tried finding some info on this subject but couldnt find anything....(i also got tired of checking and checking):)

So I have some grounding/earthing wire here but dont know where to connect to. Any advice of what would benefit from better grounding? Thanks guys.

What a diagram! well done for the creater!

Great diagram.

another +1

great diagram, ill have to do this right after i get my fd back

i still dont understand what purpose the grounds serve? anyone care to explain? i know many people say it helps with anonymous things like clearer radio signal, small increases in hp and torque, throttle response...is that true?

it makes the car run much smoother gets rid of random hesitations better cranking speeds im not sure about more hp.

Hey telum01...dude, thanks man!! The easiest explanation I have seen on a forum. he he. Thanks again!! Great job!!

A very few people over the years have reported reduced hesitation after cleaning/upgrading their grounding system. Many of these people have reported that the 'fix' was temporary, which would suggest that the improvement was probably in their head. As for smoother running, I would think that the original grounds must have been severely corroded to notice this effect. Better cranking speeds is hooey and I doubt that there is a dyno out there that could measure the horespower improvement from upgraded grounds.

there is way better cranking speed on my 2nd gen my car constantly flooded then i cleaned/added new gounds and it doesnt happen as much because my car turns over much faster....and as for my third gen i had a huge bucking problem when i slowly accelerated added some new grounds and it hasn't happened yet....

The ground is just as important as the hot lead on the car (in some cases more so) Since all the sensors work of of voltage across resistance there readings can vary with fluctuating voltage. By providing the best possible positive voltage connection (as well as a good return) or ground your voltages should remain more consistent and thus provide a truer signal to the ecu of what each sensor is actually seeing. I don't know about HP gains, but you typically get a smoother running car. When grounds start to fail, the current then seeks a path through what ever circuit it can find, which is usually characteristic of weird electrical issues, (lights dim or get brighter, warning lights come on when brakes applied or radio is turned on) just strange things happen. Grounds between the engine and chassis, exhaust and chassis, exhaust and engine, etc, can only improve electrical issues.

There is no question that grounds are essential (the factory would not have put them there otherwise) but short of missing/corroded original grounds, I would not expect dramatic (or even perceptible) improvements from upgrading them. As a mod they are often oversold; a good cleaning of the original ground points will generally get you as far as you are going to get.

great explination! it all makes sense now...i tried to think of every possible way it could help but never with any sure result

thank Damian for making it ;)