View Full Version : GM's Spare Reservoir Cooling Option


blown06
03-08-2007, 08:23 AM
I know how to run everything for those who have installed this option do you have any pics of the brackets and of the install of the tank. I know where the tank goes, and have visited the crateenginedepot for the instructions, but they are unclear of the size of the brackets and the pic is unclear of the install with the brackets. Any help would be appreciated. Thanks.....

Doc
03-08-2007, 11:16 AM
You have to make the brackets yourself. The reservior will be on the passenger side close to the fill neck for the windshield washer fluid.

R33P3R007
03-08-2007, 11:38 AM
i thought it fit on the 2 that are already there

blown06
03-08-2007, 11:43 AM
i know that much this was aimed more towards the brackets far as size of the brackets people used. I know they have to be fabed but i was curious on what size people started with initally

srt-killer
03-08-2007, 11:45 AM
Does this help out cooling at all?

blown06
03-08-2007, 11:49 AM
it is suppose according to gm, i guess we will find out but I am doing everything at once so I wont be able to determine how much

Doc
03-08-2007, 11:54 AM
lol...sorry, I didn't realize thats what you needed. I have yet to build mine....

blown06
03-08-2007, 11:56 AM
lol its ok... im ready to be done with mine since the weather is now starting to get nice

Doc
03-08-2007, 11:58 AM
kewl, I have a pdf file that has good info...I think it's from CED's site. I'll try and find it and post it or email it to you. If you want it emailed, shoot me a pmwith your addy.

HunterKiller89
03-08-2007, 12:58 PM
im a litttle confused what thi mod does...adds coolant? which i guess would mean lower coolant temps since the engine has more coolant to try and heat? thats my best guess but help me out if im wrong

Doc
03-08-2007, 01:03 PM
This is in addition to the dual pass end plate that comes with Stage 3. There are two options after you install the end plate. One is just a dual pass intercooler and the other is adding a reservior and deleting the fill neck. Make sense?

rnjmur
03-08-2007, 01:06 PM
I am going to weld myself up some brackets on Saturday and plan on doing the install on Sunday. I am just taking a 1ft x 1ft peice of steel and then cutting it and welding it as needed. I am going to the hardware store after work today to find the nuts and bolts I need to secure the tank to the bracket and the car.

R33P3R007
03-08-2007, 01:15 PM
i know that much this was aimed more towards the brackets far as size of the brackets people used. I know they have to be fabed but i was curious on what size people started with initally

I'm confused? what brackets have to be fabbed

CobaltBurst
03-08-2007, 01:19 PM
are you guys just using another stock coolant tank?

blown06
03-08-2007, 01:22 PM
the brackets that hold the second surge tank on the passenger side when doing the cooling option

are you guys just using another stock coolant tank?

yes when going this route, you can get one at crateenginedepot, make sure you order the 15lb cap to go with it because it does not come with one

Doc
03-08-2007, 01:23 PM
also make sure you get 2 y connectors....

blown06
03-08-2007, 01:24 PM
that too and a bunch of hose clamps, and heater hose 3/4" and 1/4" there is a how-to thread on this

CobaltBurst
03-08-2007, 01:25 PM
so is there just 1 pump for both the tanks?

aight ill look it up

blown06
03-08-2007, 01:26 PM
there is a main pump for the motor then there is a secondary pump for the charger coolant system

HunterKiller89
03-09-2007, 01:05 AM
This is in addition to the dual pass end plate that comes with Stage 3. There are two options after you install the end plate. One is just a dual pass intercooler and the other is adding a reservior and deleting the fill neck. Make sense?

im actually a little lost...as far as intercoolers go, all i know is how they work, why theyre needed (or desired), what makes them efficient, and what makes them inefficient, but as far as dual pass intercoolers or dual pass anything else...i dont have a clue what it is...
got a picture or a vivid description of how it differs from a normal intercooler?

sorry for my noobishness...lol

R&C_rallySS
03-09-2007, 01:19 AM
This is in addition to the dual pass end plate that comes with Stage 3. There are two options after you install the end plate. One is just a dual pass intercooler and the other is adding a reservior and deleting the fill neck. Make sense?


^ your sig is freaking hot man, rolling on 20s! Rally yellow is so damn sexy! Anyways, is it possible to do both mods? Dual Pass Intercooler setup and adding a extra reservior or whatever your talking about? Would it be possible to do a Triple Pass Intercooler set up?

Black SS
03-13-2007, 04:06 AM
im actually a little lost...as far as intercoolers go, all i know is how they work, why theyre needed (or desired), what makes them efficient, and what makes them inefficient, but as far as dual pass intercoolers or dual pass anything else...i dont have a clue what it is...
got a picture or a vivid description of how it differs from a normal intercooler?

sorry for my noobishness...lol

Its a mod for the SS Supercharged, not the LS. They have a separate cooling system for the intake manifold. And, technically speaking, it is an aftercooler and is liquid to air. Different from an air to air intercooler but it serves the same purpose.

Doc
03-13-2007, 07:54 AM
im actually a little lost...as far as intercoolers go, all i know is how they work, why theyre needed (or desired), what makes them efficient, and what makes them inefficient, but as far as dual pass intercoolers or dual pass anything else...i dont have a clue what it is...
got a picture or a vivid description of how it differs from a normal intercooler?

sorry for my noobishness...lol
The main reason for adding an extra reservior or secondary heat exchanger is to reduce the heat from the supercharger. As it turns, it creates heat, which is not ideal for power. That is why we have an intercooler (call it what you want, it cools air with water). On the stock setup, the air flows through the front of the car and into the engine bay. It travels across the heat exchangers for the a/c, intercooler and radiator. The cooled liquid is pumped to the intercooler which is inside our intake manifold. There happens to be 4 lamoniva's or cooling tubes which air passes over. The stock setup has the coolant go into the intercooler in one way and out the other. With the dual pass endplate, you flip the middle two lamoniva's and add an additional inlet. Now, you have coolant go into the middle and go out the top and bottom. That increases the amount of fluid able to reduce heat. One outlet goes to the heat exchanger setup and the other goes to an overflow bottle. The overflow bottle and heat exchanger are connected so it is a closed system in a sense. So, if you can increase the amount of coolant you can reduce your overall temperature because the fluid is able to spread the heat over more volume. Think of it this way, take 1 cup of boiling water and add it to a gallon of cool water then take that same cup of boiling water and add it to a bathtub of water. The bathtub in theory will cool it better.
^ your sig is freaking hot man, rolling on 20s! Rally yellow is so damn sexy! Anyways, is it possible to do both mods? Dual Pass Intercooler setup and adding a extra reservior or whatever your talking about? Would it be possible to do a Triple Pass Intercooler set up?
Thanks man, Sigs by CustomSS ® (http://www.cobaltss.net/forums/showpost.php?p=481189&postcount=1) he is awesome :twothumbs...You can do both mods, the extra reservior and an additional heat exchanger. It is possible to do a triple pass even, but research has shown that the additional work doesn't yield additional benefit.

R33P3R007
03-13-2007, 11:41 AM
So who has a link to the lamens how to. cause i didn't find one that was easy to understand. I want the dual pass with res. and a Cobra h/e. can i do that. or does the cobra replace my stock one.

CobaltBurst
03-13-2007, 11:41 AM
im doing the same thing you just said^

Doc
03-13-2007, 11:43 AM
So who has a link to the lamens how to. cause i didn't find one that was easy to understand. I want the dual pass with res. and a Cobra h/e. can i do that. or does the cobra replace my stock one.

I explained it in laymens terms :lol:
yes you can do that....I will be doing that in a few days myself.

HunterKiller89
03-13-2007, 11:44 AM
[QUOTE=Doc;904837]The main reason for adding an extra reservior or secondary heat exchanger is to reduce the heat from the supercharger. As it turns, it creates heat, which is not ideal for power. That is why we have an intercooler (call it what you want, it cools air with water). On the stock setup, the air flows through the front of the car and into the engine bay. It travels across the heat exchangers for the a/c, intercooler and radiator. The cooled liquid is pumped to the intercooler which is inside our intake manifold. There happens to be 4 lamoniva's or cooling tubes which air passes over. The stock setup has the coolant go into the intercooler in one way and out the other. With the dual pass endplate, you flip the middle two lamoniva's and add an additional inlet. Now, you have coolant go into the middle and go out the top and bottom. That increases the amount of fluid able to reduce heat. One outlet goes to the heat exchanger setup and the other goes to an overflow bottle. The overflow bottle and heat exchanger are connected so it is a closed system in a sense. So, if you can increase the amount of coolant you can reduce your overall temperature because the fluid is able to spread the heat over more volume. Think of it this way, take 1 cup of boiling water and add it to a gallon of cool water then take that same cup of boiling water and add it to a bathtub of water. The bathtub in theory will cool it better.
QUOTE]

i gotcha....feels kinda weird, but i thought the SSs were air to air cooled....just knowing that they're water to air cooled helps a lot

R33P3R007
03-13-2007, 03:17 PM
I explained it in laymens terms :lol:
yes you can do that....I will be doing that in a few days myself.

well then you send me a parts list, and when i get it together i'll make the trip and you can install it all and tune my car. ok.

Doc
03-13-2007, 03:41 PM
stage 3 endplate with gasket, cobra HE, extra cooling reservior, HE mounting brackets, cooling reservior brackets (make these), 15psi cap, 3/4" tubing, 1/4" tubing, NPT fitting, vacuum connector, 2 - 3/4" T or Y fittings, 6 - 3/4" elbows (90), 2 - 1/4" elbows (90), clamps for tubing (a lot), dexcool.....
I think thats it.

BlilBT
03-13-2007, 03:59 PM
[QUOTE=Doc;904837]The main reason for adding an extra reservior or secondary heat exchanger is to reduce the heat from the supercharger. As it turns, it creates heat, which is not ideal for power. That is why we have an intercooler (call it what you want, it cools air with water). On the stock setup, the air flows through the front of the car and into the engine bay. It travels across the heat exchangers for the a/c, intercooler and radiator. The cooled liquid is pumped to the intercooler which is inside our intake manifold. There happens to be 4 lamoniva's or cooling tubes which air passes over. The stock setup has the coolant go into the intercooler in one way and out the other. With the dual pass endplate, you flip the middle two lamoniva's and add an additional inlet. Now, you have coolant go into the middle and go out the top and bottom. That increases the amount of fluid able to reduce heat. One outlet goes to the heat exchanger setup and the other goes to an overflow bottle. The overflow bottle and heat exchanger are connected so it is a closed system in a sense. So, if you can increase the amount of coolant you can reduce your overall temperature because the fluid is able to spread the heat over more volume. Think of it this way, take 1 cup of boiling water and add it to a gallon of cool water then take that same cup of boiling water and add it to a bathtub of water. The bathtub in theory will cool it better.
QUOTE]

i gotcha....feels kinda weird, but i thought the SSs were air to air cooled....just knowing that they're water to air cooled helps a lot


The Other Reason is to Constantly Bleed the air from the System By Tieing the 1/4 Inch Line to the Bleeder Plug of the Stock Heat exchanger! Only thing I did Different was, Instead of using the Redline Reservoir I had Mine Made & It Holds More Fluid! Figured what the Hell if I got to Make Brackets, I'll just Make the Damn Reservoir so it uses the Factory Studs sticking up on that Side!

R33P3R007
04-03-2007, 11:11 AM
stage 3 endplate with gasket, cobra HE, extra cooling reservior, HE mounting brackets, cooling reservior brackets (make these), 15psi cap, 3/4" tubing, 1/4" tubing, NPT fitting, vacuum connector, 2 - 3/4" T or Y fittings, 6 - 3/4" elbows (90), 2 - 1/4" elbows (90), clamps for tubing (a lot), dexcool.....
I think thats it.

well, i'll start collecting this stuff, and when i'm done i'll let you know. I have no clue how to install most of this shit.

plus i need a tune.

and they meet every wednesday at that sonic now.

JapEatr
04-04-2007, 02:10 AM
i got mine all installed, made brackets out a L shaped track that i painted

hade to ditch smaller surge tank due to broken stock brackets

here is pic of it installled

http://cobaltss.net/gallery/files/3/7/9/9/Photo_032207_018.jpg

PM for more info

also have ton of pics of this mod check my gallery or Mines_Better gallery on ss.net

SStud
04-11-2007, 12:48 AM
I see that Cobalt Addiction has a Dual Pass Kit. Does that come with everything that i would need? It doesn't mention a second reservoir. Also, do you think this would be easier to do while doing a clutch install?

Sorry to bring this thread back to life.

blown06
04-11-2007, 01:02 PM
it is easy to do just time consuming.

SStud
04-11-2007, 02:31 PM
So the CA Kit is a complete kit and the second reservoir isn't needed?

blown06
04-12-2007, 10:19 AM
i believe it is just the end plate i could be wrong I havent checked the site in a while

SStud
04-12-2007, 02:58 PM
Straight from their site: CA Dual pass intercooler plate kit comes with a custom made dual pass intercooler end plate, y - fitting , 2 stainless steel braided hoses , assorted clamps and instructions. This kit will decrease intake temperatures and maximize efficiecy of the cooling system. With a dual pass the cooled water enters the intercooler and is split into two paths. Each path cools only 2 cores(versus stock cools 4 cores), so the water stays cooler and keeps the IC charge cooler. All for $240

http://www.cobalt-addiction.com/products/pages/forced_images/dualpass_large.jpg

blown06
04-12-2007, 05:19 PM
yeah its the end plate you will have to buy the cooling reservior. you can run the endplate without the secondary cooling reservior. You can make your own dual pass end plate for around 70.00 using your stock endplate if you want to attempt it. there is a how to out there