Installing FI Interchiller Stage 2 , on 134a

[DougS550]

Just starting this project this week end.
I will still use my whipple stage 2 OS Heat exchanger with the interchiller. I am not going to remove my Whipple HE. I also took about 20 temperature readings from different areas to check on actual cooling decreases

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[mepawn]

Im very interested in seeing how this turns out. I am planning to do the same thing but with a vmp.

 

[DougS550]

Im very interested in seeing how this turns out. I am planning to do the same thing but with a vmp.

No problem. I removed my whipple OS HE and installed a mishimoto 2-1/2 gal resetvour tank. I upgraded to the CWA400 pump with -16an fittings. I just mounted my interchiller on the back side of crash bar. You will make brackets.

 

[80FoxCoupe]

No problem. I removed my whipple OS HE and installed a mishimoto 2-1/2 gal resetvour tank. I upgraded to the CWA400 pump with -16an fittings. I just mounted my interchiller on the back side of crash bar. You will make brackets.

I run the CWA400 on my a2w setup wit 1in lines, it's a bad bitch. At 50% operation it moves a ton of water.

 

[DougS550]

I run the CWA400 on my a2w setup wit 1in lines, it's a bad bitch. At 50% operation it moves a ton of water.

Do you have it wire to run att 100% full time?

 

[80FoxCoupe]

Do you have it wire to run att 100% full time?

No, I have it on a speed controller. 100% is overkill. And pulls about 35a at full rip.

 

[DougS550]

No, I have it on a speed controller. 100% is overkill. And pulls about 35a at full rip.

Can you tell me which speed controller your using? And how did you wire the 4 wires? I would get the mini temp controller but it won't work on the new CWA400

 

[80FoxCoupe]

Amazon deal. Works great. Instructions included with unit. Easy to wire up.

 

[DougS550]

Amazon deal. Works great. Instructions included with unit. Easy to wire up.

Can you tell me which CWA400 part number you have. I was told when they redesigned after 03/2024 to a brushless motor the regular PWM controller wouldn't work?
- Do you remember if your CWA400 has 4 wires
BUT: They say to just ground Pins 2 (Lin signal) and 4 (power ground) and 12VDC on pin 1 (PWM Signal) and Pin 3 (12VDC power)
I was thinking of leaving power off of Pin 1 (PWM signal) if motor does not work then I will put 5VDC on Pin 1 to see what happens.
I wonder if this new motor needs a Lin Buss Controller which regulates the ground of the LIN wire instead of controlling 12VDC on the PWM wire?

 

[80FoxCoupe]

My pump is 4pin

 

[80FoxCoupe]

I didn't really read this correctly the other day. My pump is the PWM version which is brushless. Pierberg moved to a LIN type control. Looks as if the LIN version is either on or off unless you have a way to control it. 100% all the time is not recommended in my opinion. It's gonna move alot of water and consume alot of power.

 

[DougS550]

I didn't really read this correctly the other day. My pump is the PWM version which is brushless. Pierberg moved to a LIN type control. Looks as if the LIN version is either on or off unless you have a way to control it. 100% all the time is not recommended in my opinion. It's gonna move alot of water and consume alot of power.

I agree. I will buy a CWA200 with controller and it flows high.

 

[mepawn]

No problem. I removed my whipple OS HE and installed a mishimoto 2-1/2 gal resetvour tank. I upgraded to the CWA400 pump with -16an fittings. I just mounted my interchiller on the back side of crash bar. You will make brackets.

Dang i was hoping that you retained the OS HE. I dont want to only run the interchiller because if the ac fails then you have no way to cool the water. I was looking at putting the interchiller after the HE to allow the HE to do some work and then the interchiller finish cooling. That way im maximizing the cooling effects and dont have to work my ac if i dont want.

 

[DougS550]

Dang i was hoping that you retained the OS HE. I dont want to only run the interchiller because if the ac fails then you have no way to cool the water. I was looking at putting the interchiller after the HE to allow the HE to do some work and then the interchiller finish cooling. That way im maximizing the cooling effects and dont have to work my ac if i dont want.

For me, I didn't want to get rid of the HE but, two things.
- their was not enough room to install the interchiller behind my crash bar with the OS HE.
- The restriction of airflow to my mishimoto 3 core radiator due to the OS HE was of concern to me.
I am also "NOT" going to use the high amp draw (35 amps) the cwa400 pump draws, I will use a CWA200 brushless pump which flows 116 lpm at
.45 bar compared to Bosch IC pump which flows about 21 lpm.

 

[mepawn]

For me, I didn't want to get rid of the HE but, two things.
- their was not enough room to install the interchiller behind my crash bar with the OS HE.
- The restriction of airflow to my mishimoto 3 core radiator due to the OS HE was of concern to me.
I am also "NOT" going to use the high amp draw (35 amps) the cwa400 pump draws, I will use a CWA200 brushless pump which flows 116 lpm at
.45 bar compared to Bosch IC pump which flows about 21 lpm.

Do you think its possible to mount the interchiller in an alternate location? I already have an ice tank as well, just looking for options to reduce the need to go get ice like when im just cruising so i dont have to worry about temps with spirted driving.

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