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Old 09-16-2025, 01:55 AM   #1
Bangkok_ZL1
Flying around Thailand
 
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Drives: 2019 Camaro ZL1
Join Date: Oct 2020
Location: Bangkok, Thailand
Posts: 620
Does anybody remember this expansion chamber?

Does anybody remember this? The ADM compact coolant tank as shown here

https://www.camaro6.com/forums/showthread.php?t=548648

But on their website they had this shown this...

https://admperformance.com/products/...ersal-hardware

So me, as a studious car hobbyist, saw all the posts about the clear white one being a $35 part from GM for the Bolt I think it was. So, I bought it and it appears to be exactly the same (pics attached). However, I do have a question or 5. Inside there is a divider with a small hole. it also appears on the one ADM was advertising to sale. I can see it through the outside skin. Did anybody buy this from them and notice this? And if so, what is the divider for. And is it working well for you? Should I leave it as is? Should I make some extra holes with a cheap soldering iron? It appears counterintuitive to me to not allow all the coolant to mix and stay cooler. I would think all the liquid mixing together easily would be better, I don't know; or does it even matter... Also, mine from GM has a small ridge on the inside of the Barb location on the mid-body front stem (not the bottom one). Which would impede the smooth flow of Dexicool. Should I carefully remove it? Or does that matter as well? If somebody did buy this white one, was there a space for a sensor at the bottom? Lots of questions before I install it. By the way, I'm doing this because F.I. Interchiller's instructions say I should have one. And they didn't tell me that when I initially called them which I didn't like much. Actually, my car ran very well without one on long road trips. But hey $35 + a little hose and a homemade Bracket work, why not. Also, for those that don't know, I was under the impression that this thing held a quart. It doesn't. I checked it 750ml max, 3 cups.

Once again, thank you to the forum, you guys are a great help.
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Mods - From JRE, the 125 RWHP Kit; From FI Interchillers, the Stage I Interchiller system, 5mm Supercharger/Head spacer plates, Heater blanket; From BMR Suspensions, Motor mounts, Cradle lockout Bushings; From Misc, Train horn in the Abandoned Heat Exchanger location using the exchanger bracket. From Banks, An I-Dash to read it all...
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