What connectors do you use when wiring a race car? Which ones handle higher amperages? Seems like the weather pack connectors melt down at 30amps.

I just use real 3M connectors rated for for the circuit im wiring. On many areas i prefer "non- insulated" and just use good quality heat shrink. I seem to get more consistent crimps ( weld joints) with non- insulated connectors.
FWIW

I use kind of a mix of Metripack and weatherpack. I haven't had any issues yet. My fan plug can be questionable but it plugs directly into the fan and its a cheapo deal so I don't fault the connector.

I think the flagship is the Deutsh(spelling) connectors. They can get expensive and the good crimping tools can also be expensive.

My weather pack ones for the fans, are the ones that melted down....Where do you guys source the good connectors and stuff?

I used Deutsch connectors where ever possible on my Road Runner. So much nicer than Weather pack, or metri pack connectors. I have access to all three at work. I save all the connectors when we scrap out machines, and just buy new pins for them.

30 amps is a bunch, for anything other than a starter on a race car. Weatherpacks are made for up to 10-12 gauge which should handle 30A fine. Is the motor a problem? Never seen one even half that. I've never had a hint of a problem with the Weatherpack stuff..

Is that one fan or multiples? On multiples, I use a separate relay and wiring for each motor.

Each fan had its own supply wire, but I put the grounds to one common one thru the weather pack.....So it was closer to 2 fans x 27amps each....

Try splitting the grounds to individuals all the way to the stud, chassis, buss or whatever the main ground is.

I just use spade connections

My fan is close to 40 amps and I use a #10 wire and the correct matching pins in a weatherpak connector. Absolutely no issues. I suspect that you either had a bad crimp or undersized wiring or pins.

i like the Deutsch connectors as well. just make sure you have a quality tool to crimp them with.
as has also been stated, sometimes you need to use an un-insulated spade, ring, or pin. i like to use the ones that are tin plated, but i have also used bare copper as well.
when using shrink tubing, i have now started to use the marine grade, which has a sealer glue inside. just seems like an extra measure of keeping a good connection between the wire and the terminal.

x2!

I was wondering if I should switch....I have a pile of weather pack connectors though.

Also, what wire labler & lables are you all using?

What are Deutsch connectors, brand or type?
How about a picture of them please

The problem with Deutsch right now is in stock availability, like so much other stuff these days.

https://deutschusa.com/ Look nice

I'm glad I ask and you guys help me see what they make, Thanks a lot
Nice looking parts
I'm use to 3M brand Scotchlock connectors and the local parts store inventory on ends.

Cab, if you are referring to the "cut into the wire squeeze with pliers-fold over cover" wire tap when you mention "scotchlocks", i rate them right up there with those "bolt on" battery terminal ends............
i REALLY don't like them !
just my opinion, your mileage will vary.

I worked for a telephone company for 33 yrs, those Scotchlok type connectors are used in that industry, insert the wires and pushdown the lock in plug
3M catered to that industry, we mainly use wire gauge from 19 to 26 gauge depending on how far the customer was from the central office
One time use only also