Cylinder head ground straps

What are everyone's thoughts on grounding the heads to the block/mag with dedicated ground straps? It seams as if this would be a good idea? With all of the effort being put into making the front end of the ignition systems as efficient posable, it seems as if it be a simple way to make the completion of the circuit efficient as well.

 

I run a ground wire from the head to the block, distributor to block, and then from the block to the chassis as well. I don't know if it makes a big difference, but it definitely doesn't hurt.

 

run a current TF car dual 44s....dont use um at all anymore

 

When we started using a 44mag , we would get cylinders dropping under load , the plugs were cracking on random cylinders. The cure was to add more earth straps.

We run them from one cylinder head to another , front and back , and from the heads down to the frame. It cured our problem

 

its a must!!

 

MSD says to ground the heads

MSD says it makes a better electrical path to the sparkplugs to ground the heads, and we do and have never had any problems the last 10 to 12 years! THANKS! Jim

 

Ground straps

What type/gage of wire/cable are you guys using? Battery Type wire and ring terminals?

 

earth straps

the best kind is the older style flat rectangular nickel coated copper and you only need 3/8" lugs on each end. At the end of the day almost anything is better than nothing and if nothing else it eliminates a potential issue

 

I know it is a "must" but why?
really why

ally heads, copper head gaskets, iron block all held together with about 25studs.

some of the best electrical conductor and we join them with a relatively small earth strap and it is all so much better.

Tyson (Electrical Engineer)

 

We have always used them because of MSD info, but it is interesting that the nitro cars, with twice the amperage don't seem to have any.

 

earth straps

its because of the different types of materials and the fact that they are not 'bonded' as such just bolted together. The different materials can set up electrolysis which results in high resistance. It may be better to suggest this is a preventative action rather than corrective. It also eliminates this as a potential cause of problems

 

we made one harness with 10 gauge wire & soldered d-rings.runs from cyl head to cyl head to coil ground.also have main ground from battery lug at fr of car to coil ground.no problems so far.

 

Where on the heads do hou drill, and how deep do you drill?

 

our veney heads already had the holes when we bought the motor.we use a 1/4 20 bolt,1/4 inch long w a little blue loctite for good measure. also,the holes are right up front on the face of the heads.

 

never had a problem with putting them on exhaust studs just to the chassis
iv often wondered ok so the heads only bolted but you just bolt the earth straps on so whats the difference, we do this cause everyone else does it,