I believe Option B serves the same purpose with or without dual pass. And you don't need it for the dual pass in order to lower your IAT2's.

You can buy another reservoir tank like the one on the driver side of the engine bay and place it on the passenger side of the engine bay. Then run your lines as needed.

Tip: when running the coolant lines to Option B, you might want to get a plastic 3/4" 90 to keep the hose from getting a kink in it where it joins the 2 other coolant lines where your feeder neck would be.

I'm running the small CX Racing Heat Exchanger with my stock heat exchanger and can notice a difference in the car. However, if you want to run the large unit, it would be best to get rid of the stock unit.

Also, OTTPerformance did testing on both units and found that the small CX Racing Heat Exchanger consistently yielded lower IAT2's because the proper amount of air was running through the unit. With the large Heat Exchanger, a lot of the unit is covered up with your bumper and such so it can't cool the coolant as effectively.

Hope this helps with your heat exchanger shopping.

 

I already have the big one. well, even the small one is huge. just curious about the best way to hook it up.

 

Well, if you are going to run the stock unit heres how you will hook it up:



Also keep in mind that if you do not remove the stock heat exchanger you're going to have to cut a little off of the inside of the bumper to get it to fit.

If you wanna take the stock one off, flashbrandon has a how to:

https://www.cobaltss.net/forums/how-guide-43/how-install-cx-racing-h-e-w-no-fabrications-125996/

 

thanks for the info, appreciate it!

 

all the above is bunk if you dont run a bleeder line. Trust me on that, the testing is clear. You cannot get the air out without it...even with vacuum fills, and the guys around here dont spend the money (75 or so) for a vacuum fill tool, so : no bleed, air in system - heat transfer diminished.

 

gotcha. talked to Sean, said removing the stock he, and replacing it with a front mount yeilded the best results.

 

The SS coolant bottle is not designed for the Option B, There is no pressure release on the SS Bottle ....like on the Redline. Thats why GM designed it with the redline bottle & it also reguires a different cap which is a pressure release that comes with the the redline bottle. In my case I had my reservoir custom made & bought a neck & cap from Summit!

I Run my stock inline with the front mount that way the fans cools it down & the front mount cools it even further... which gets you more cooling over all & more fluid! This yeilds the best results because you are utilizing the fan flow to help cool the fluid when sitting, in stop & go traffic & after hard pulls it helps cool it much faster, If you didn't have the stock H/E you are only cooling when you are moving to get the air flow to flow thru the Front mount H/E fins.
So you would tend to heat up alot sitting still .....Not Good!

 

i just didn't like that the HE was sandwiched right in with the AC condenser and radiator. the HE wasn't getting the flow it could be, and i think the daiator will be happier with less stuff in front of it.

 

Not really it still draws fine, while we setting this up we did all kinds of readings on IAT2 temps & engine temps w/Hp Tuners & nothing changed but my IAT2 temps! sitting still I don't go above 130 degrees, again remember you are using the stock fan then the front mount!

 

you should be ALOT lower than that..

your iat2s will drop with just the larger HE up front.

 

you are right about the SS bottle but the pressure in the after cooler system is like almost zero, so el cheapo diy'er ss reservoirs can be used, just not as good as the redline one and a PITA to install.. and i beleive you are right about keeping the stock h/e.

single pass laminova, lower still

 

Haha.. lower still indeed

 

[QUOTE=qwikredline;3372848]you are right about the SS bottle but the pressure in the after cooler system is like almost zero, so el cheapo diy'er ss reservoirs can be used, just not as good as the redline one and a PITA to install.. and i beleive you are right about keeping the stock h/e.


Just remember you dont have the release cap & anything goes wrong like say intercooler pump, the pressure has to go somewhere. I have personally seen stock systems over pressurize & dump the fluid out the over flow that is on the stock neck.....with that being said do what you like but remember that fail safes are put in for a reason, as far as the install I found it really easy to make brackets to mount the bottle on LSJPuP's car & a few others!
Metal shelf brackets from Home depot or Ace hardware & bend a few 90 degree corners & you can use the mounting bracket for the SS/NA air box & the front 1 all you have to do is mount the bracket to the sidewall of the engine bay & bolt the bottle to it... this took about 30 minutes!
I think I have pics of this some where, Hell I've setup several of these systems & been running it for 2 years & No 1 I have done every came back with a problem!


hello

 

[QUOTE=BlilBT;3372940]just so you understand i dont use the cobalt reservoir the thread poster does...if the stock sytem over pressurises it sure isnt the weak pump lolo