If you're logging how many times your Delphi connectors to your electronics have been connected/disconnected, you're race program is light years ahead of mine. Some cars I race with in NSS have original wiring from 1968 and do just fine. I think those specs are more focused on high end DOD/military/airline quality control guidelines than for drag cars.

If you know Rossler personally he says some things that most people wouldn't believe from time to time. I remember him telling me and a buddy both that we could run without a trans cooler because a drag car doesn't run long enough to cool the trans with a cooler. This was spoken face to face not over internet or phone.
Another thing lots of people say is dedicated ground to trans brake, I don't and never an issue.

I wasn't saying not to use the connector. Just offering a possible explanation for why he says not to use them.

quote:

Originally posted by green1:

Another thing lots of people say is dedicated ground to trans brake, I don't and never an issue.

X2

quote:

Originally posted by green1:
I remember him telling me and a buddy both that we could run without a trans cooler because a drag car doesn't run long enough to cool the trans with a cooler. This was spoken face to face not over internet or phone.

While I believe Carl is the best when the conversation is GM 3 speed trans, Carl is wrong and I told him so. He has never raced a footbrake launched bracket car. I have cooked the fluid in his trans without a cooler.

Multipin weatherpack style connectors are used on Onan generators to plug in all their Control boards. They have rubber seals and the male pins appear to be stainless.

Round pins that you would assume never fail....and they are left undisturbed for many hours of running time and are all mounted in places that are as protected as they can be.


They sometimes develop connection issues that can cause running problems with the machine. Simply disconnecting one and reconnecting it might even fix it.....

Onan even lists this as a possible failure cause in their troubleshooting guides.

I have cut the female side at the connector out and replaced it. The male side is part of the PC board.....not replaceable separately.


My dragster has ground wires to each cylinder head and the trans brake solenoid.....


A circuit is best with minimal resistance....

A course I was on recently, did point to pin fitment as a major factor in electrical failures in the automotive world. That being said, I don't see how a regular crimp connector would be any better or worse than a weatherpack.

Unless perhaps the design of the round pins does lead to compression and spread of them as mentioned earlier. It would be nice, if there was more in the article, as in a recommendation for what *to* use instead of just a notice of what *not* to use :P

I used to do all the repairs on our fleet of service trucks. Mostly vans and at the time GM products. They routinely would have an intank fuel pump fail at around 70-80 k miles. Often would be intermittent before full shutdown. On at least 2 occasions I probed the female supply side connector looking to be sure at least the prime voltage was there. Just probing the connector could open it enough to create a problem. After the first event with repeat on the road shutdowns I cut those connectors out completely and used old style connections. I like to use the newer types with heat shrink back ends. I used wire nuts on many occasions in racecars and they never failed. Lol Crude by anyone’s standard I know but they worked without issue.....

Take a crimp connector and cut the insulation off the crimp area. Crimp it and then solder it. Cover it with heat shrink tubing.

^^^^^ I've been doing this for at least 30 years. I've even extended the shrink tubing over the female end of a spade connector.

That said I use a lot of Weather Pak stuff, too including my trans brake solenoids.

I'm preparing to replace my 7530T with a Grid set up. It'll give me a chance to clean up the wiring again.

I've seen a Weatherpack have problems in a removable delay box application where it was removed several times per day. On a transbrake solenoid that is replaced maybe once per season, I'd trust it without issue.

On my cars, I use a crimp flat male and female terminal for power and crimp ring terminal for ground.

My transbrake solenoid weatherpack connector has been connected since March of 2017.

Carl's been wrong before and I say he's wrong again...



and unlike the weatherpack connector for transbrake solenoid, the connector for the throttle stop gets disconnected/connected often, without issue...

biggest cooler you can find if you go rounds. map it with a data logger and you can see very interesting trends that will make you a much better bracket racer and explain a lot of items that make you scratch your head.