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2020 Ford Mustang 6MT HPP/HP
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I have run the car as a two driver a couple of times in low humidity 90-95 degree days in N. California. About 50 second courses fast enough to hit the 2nd gear rev limiter and hold it for a couple of seconds. A couple of times the courses were long enough to shift to shift to third and I was faster when I did that. I still need more time in the car on course to evaluate when to short shift to third. I do not run the A/C but I open the hood and cool down the tires and IC with a water sprayer. I have seen the oil temp gauge go into the yellow a couple of times so I have added spraying the radiator down as well. Opening the hood lets out a lot of heat, even the hood prop is hot to the touch after a run.
After thinking about the water wetter I will put it in the better way.
1. Suck the coolant tank dry.
2. Add water wetter to the tank.
3. Drain the radiator until the water wetter is gone.
4. Add some of the coolant from step 1 to the tank.
5. Drain the radiator until the coolant from step 4 is gone form the tank..
6. Fill up the coolant tank. I have gallon of Ford yellow coolant from topping up my tank before.
The only other thing I can think of improving for D street is to remove the bumper cover and adjust the flap in front/over the IC and adjust the lip below the IC for better flow.
 

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2019 EB PP
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43 Posts
Discussion Starter #42
I always advise driving a new/different car for a year to get the feel for it before throwing mods at it. It is surprising how much what you feel about the car will change in a year. Once you get used to the balance, power, etc and adjust how you drive you may find that your initial mind set may change. That's why the driver mod is one of the first upgrades people recommend.:cool:
 

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While I'm not the definitive answer, I'll put in my 2 cents. Being an overflow is just there as a back up to allow expansion and contraction of your coolant I would guess it would take a long time to get in the system if at all.
My experience with this. I sucked out the overflow tank, rinsed it and filled with distilled water. It was clear as clean water.
Did a track day (3 x 20 minute sessions) and looked, the tank was back to being coolant colored.
Repeated the flush and fill with distilled water (the tank only) and after another track day it was back to being coolant colored.
IMHO the fluid contained therein is exchanged with the rest of the system very regularly.
 
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2019 EB PP
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Discussion Starter #44
My experience with this. I sucked out the overflow tank, rinsed it and filled with distilled water. It was clear as clean water.
Did a track day (3 x 20 minute sessions) and looked, the tank was back to being coolant colored.
Repeated the flush and fill with distilled water (the tank only) and after another track day it was back to being coolant colored.
IMHO the fluid contained therein is exchanged with the rest of the system very regularly.
Good to know. Truly I am surprised. Just took a look and maybe that's why the tank is mounted so high. Also, it does say 21psi on the cap. Maybe they intended it to be an exchange tank and not your average overflow.
 

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2020 Ford Mustang 6MT HPP/HP
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Thank you very much Squid. Your observations saved me a bunch of time. Now I will just suck out enough to add the water wetter and go on a few hard drives.
 

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2019 EB PP
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Discussion Starter #46
Another event in the books and another 1st place. Very happy with the ECS however I did find out they do get greasy with heat which kinda surprised me but not really. I got about 3 (60+ second) runs in and they needed spraying.

So here comes that damn rabbit hole opening up. My best clean run was just under 1.5 seconds off of 1st place CamC time. So the minds goes bing!!!!

What if:
Tune
Intercooler
Wider wheels and tires
Springs
Struts
Sway bars
A bit of aero
Weight reduction

Hmmm, is Cam in my future for next year?? What's a man to do.....LOL

37586

And thanks to JG from Grassroots Motorsports for this shot.
 

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All of that and more is why I jumped to CAM a couple of years ago. These cars are competitive there, and it's fun beating the V8 guys.
 
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