yea i know im geared 5t higher, i was just telling you what my gearing was.
but when i said im not sure if its even possible to run the 7xl in low temps was from reading up on posts. there are many out there that tried already, all different gearing and the 7xl is just a heat monster. i think i only read one person didnt have any heat issues...he just has a fan on the motor but i duunno bout that.

The fan actually went out and I have run it several times without it, just with the heatsink. It doesn't really overheat. I can hold onto it for some time after I run it without it hurting.

I popped your configuration into the speed calculator and it says 35mph. If your vehicle really does go 40 with that setup, then my 9XL on 4s should be doing lower 40s with a 17/36 gearing and slightly larger tires.

I raced a MGT 8.0 after it was tuned the other day and I have alot more acceleration and a touch more top speed. I think those are good for 40mph...

This setup is only temporary. If the motor frags it's no big deal. I am going to be running the MMM combo with motor. Should be alot more efficient and run cooler which means I can gear it alot higher. I am happy with how this truck runs for now.

I might add that is has been in the 90s outside so it would run cooler on a cooler day.

That's really good looking build you have there!.. extremely clean well done.. Hope you get the temp thing worked out..

Thanks for your time and have a great one