Engine grounding wire
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Joined: Aug 2003
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From: The Hammer!
ground kits are useless you can save yourself alot money by buy the wire and the ends and replacing all the ground wires under your hood. (starter, alternator, battery, engine)
you have to be careful when grounding you motor because if done wrong you can actually do something known as a "ground loop" which will make it lose power, best thing to do is ground the motor all to one point to avoid this, all modern car are starting to use a common ground, rather then just ground at any metal part.
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Joined: Mar 2003
Posts: 1,883
From: outter space
Thats not true at all. Ground loops mainly affect stereo installation. They are caused by different paths having different resitance, (potential difference) On a modern car, the transmission, block and head and many other points are grounded to ensure that each part gets adequate voltage.
Last edited by Blue Dragon; Jun 28, 2005 at 05:29 PM.
Originally Posted by Blue Dragon
Thats not true at all. Ground loops mainly affect stereo installation. They are caused by different paths having different resitance, (potential difference) On a modern car, the transmission, block and head and many other points are grounded to ensure that each part gets adequate voltage.
ground loops apply to engines and any electronic device, that is why modern cars are using a common ground, now some companies such as toyota are even using a phonolic plastic intake manfiold to reduce heat.
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Joined: Mar 2003
Posts: 1,883
From: outter space
Pick any modern engine, I'll show you that is grounded in more than one place. A phonolic spacer is just a plastic gasket that seperates the intake manifold from the head, to reduce heat soak. It has nothing to do with grounding.
The chassis of the car is grounded, the motor is grounded (in several places). Specific electronic parts such as the ECU, radio, etc are susceptible to interference from ground loops, and are only grounded once. Other parts such as the ventilation blower motor are not susceptible to ground loops.
I think that you are getting confused with what a common ground is. Basically, all it means is that if you have an electronic component that requires several parts to be grounded, those individual parts are grounded to a common point.
The chassis of the car is grounded, the motor is grounded (in several places). Specific electronic parts such as the ECU, radio, etc are susceptible to interference from ground loops, and are only grounded once. Other parts such as the ventilation blower motor are not susceptible to ground loops.
I think that you are getting confused with what a common ground is. Basically, all it means is that if you have an electronic component that requires several parts to be grounded, those individual parts are grounded to a common point.
Originally Posted by Blue Dragon
Pick any modern engine, I'll show you that is grounded in more than one place. A phonolic spacer is just a plastic gasket that seperates the intake manifold from the head, to reduce heat soak. It has nothing to do with grounding.
The chassis of the car is grounded, the motor is grounded (in several places). Specific electronic parts such as the ECU, radio, etc are susceptible to interference from ground loops, and are only grounded once. Other parts such as the ventilation blower motor are not susceptible to ground loops.
I think that you are getting confused with what a common ground is. Basically, all it means is that if you have an electronic component that requires several parts to be grounded, those individual parts are grounded to a common point.
The chassis of the car is grounded, the motor is grounded (in several places). Specific electronic parts such as the ECU, radio, etc are susceptible to interference from ground loops, and are only grounded once. Other parts such as the ventilation blower motor are not susceptible to ground loops.
I think that you are getting confused with what a common ground is. Basically, all it means is that if you have an electronic component that requires several parts to be grounded, those individual parts are grounded to a common point.
No your still wrong, Toyota echo is a perfect example. The car uses a phonolic plastic intake manifold same with the celica, the car is also all grounded to one point just like any other modern car now a days.....
http://www.autooninfo.net/Photo2005ToyotaEchoLg5.jpg.
The problem with ground loops is it causes electrical interferences with the cars electrical system, that is why companies make ground kits all to one point (well good ones). Little 18gauge wire will not cause any resistance or interference compared to 4-8 guage which most motor/tranny grounds use.
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