Pierburg CWA400 as Intercooler Pump for Atomic Fab Compound Boost Silverado
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- Опубликовано: 11 сен 2024
- I talk about the CWA400 pump I switched to for my intercooler setup over the winter from the 3x bosch pumps and engine bay water tanks I was using. Best place to get one of these pumps is ebay or a salvage yard as you want to make sure you get a real one and not a counterfeit. It MUST have a PWM signal and will not work if you simply hook 12v to it. This is scarier than it sounds, just get a PWM controller from ebay/amazon or wherever and have it do its thing.
www.atomicfp.com
Nice build!
Not sure if your setup is still the same as in this video, as it's a few years old, but I run a similar setup with a pair of cwa250 pumps. I run one inch lines and the two pumps overcome the added resistance from the smaller lines without an issue.
The main difference that I wanted to note is I also included 5 volt reference as an input for my pwm controller to reference. So I hooked up a generic 3 bar map sensor and that signal feeds my pwm controller. So I can have the pumps be off at idle or vacuum and the flow scales up with boost.
So my water flow is boost referenced and this helps keep my cold water cold for longer because I'm not cooling the air that doesn't need to be cooled. I only need cooling when I'm under boost and any other time the water's flowing it's just warming it up even though I'm not trying to make any power.
Since doing this I've been able to switch from a 10 gallon ice box to a 5-gallon ice box, saving about 80 pounds.
There's a guy on eBay selling a controller with an integrated 5 volt input reference so it has everything you need in one compact unit. A little intimidating to set up but his instructions on the eBay listing are adequate for getting it up and running without too much hassle. I recommend giving it a try, although it's significantly more expensive than the $12 controller you use, he asks for about 80 bucks for his controller. But it's worth the money in my opinion for having adequate control of your flow to preserve your cold air for when you actually want it.
The other edition that I made to my setup is an intercooler sprayer over my heat exchanger in the front to amplify the cooling of the water circuit if you're doing back-to-back runs where you might get heat soak in your water circuit.
Anyway just wanted to share a couple things that other people who see your video might find value in when they're optimizing their A2W system
That sounds awesome!
Have the link?
Does the controller have memory? Like if I wire to ignition power will it turn on with the settings saved?
Did you wire the pump power and ground to contoler feed and did you hook up signal power and ground to the output is that how those adjustable pwm controllers make the brushless motor work also is your main pump power wired to ignition?
How did you wire the pump? I have this pump on my pnr ice tank and I didn’t get any instructions on it and it’s been a headache trying to forgive it out
There's a wiring diagram and harness online if you search for the pump. It needs power, ground, and a pwn signal to the pump
i've got a few questions about this if you dont mind.
1.) What models of bwm does that pump come from
2.) If you're running such a large diameter line, did you neck it down at the cores, or are the core's water inlets the same size.
3.) what kind of temps are you seeing at idle vs after doing a full pull (idle temp vs ambient air temp etc....)
thanks
Unfortunately I dont have as much information as I would like, but in general I would put in a 10lb bag of ice before every few runs and the temp would be near ambient until after a run. I dont know what exact models it came from, generically 2010ish 4cyl turbo SUVs. Yes I split the large main line into 3x 3/4" lines that go to each core separately so they are all in parallel.
Where did you get the controller? I have the same pump, but don't think I'm getting the same volume. Thanks for the info.
From Amazon, it's a generic pwm controller, was like $12
@@atomic178 one last question, do you have the main power wire for the pump to battery voltage, an run the signal wire of the pump through the pwm with separate 12v to the pwm?
@@jeffbendel3737 No, I have a relay on the main power side connected to a switch so I can turn off the pump entirely without messing with the controller. In theory you could run it straight though. The controller 12v is very low current and I have it wired up with other inside gauges.
@@atomic178 thank you for the replies
Nice work! Looks good. Off topic... what seats are in your truck, they look really nice.
Actually just looked through your videos and saw it was a Braum seat. Looks a little narrow for us bigger guys.
@@MThompsonjr115 Not really actually, I am about 6ft 270 with a 38in waist and I fit fine. I had the "wide" corbeau LG1s and they were a little too big for me honestly.
@atomic178 Thanks for the info. I’ve got a 01 Silverado with some no name bucket seats that I was considering swapping for something nicer. I’m 6’2”, 240 with a 38” waist, so these sound like they’d work.
Look up forced inductions cwa400....
Why exactly? Lol
Where did you buy the hose and fittings?
I think all of that stuff was from Mcmaster Carr
which intercoolers are you using
They are frozen boost air to water 3" in and out, nothing special