LS1GTO Forums banner

Maggie Intercooler Reservoir Relocation Mod

5.4K views 8 replies 5 participants last post by  nesikachad  
#1 · (Edited)
Maggie How To DIY: Intercooler Reservoir Relocation Mod

Reason: Cosmetic
Materials: Additional 3/4" (or applicable) hose, 3/4" aluminum tubing (Lowes carries it, not Home Depot), enamel paint, hoseclamps, brackets, new reservoir tank of choice, fittings, etc..
Cost: Less than $75
Install Time: A few hours if in a rush / a weekend with some drinks, music and friends to waste time with
Skill Level: Novice
Special Tools: Small 1-1/4" or 1-1/2" hole saw
Pros: Cleaner/uncluttered engine bay appearance / easier to work with battery / may return coolant to ambient quicker / makes the engine & supercharger stand out better / more to come
Cons: Getting initial air out of lines can be annoying / filling up reservoir first time is bothersome / getting the pro-lite 350 hose on the tubing was hard / more to come maybe
Outcome: I'm very pleased with the outcome and appearance of the setup. Although I'm still putting the car back together and haven't put the polishing touches on this mod, I'm really happy with how it turned out. It looks somewhat professional, it's maintenance-free just like the OE version, and it gives you something to do with your car on a weekend for very little expense.

Description & Reason - I might've mentioned this before, not sure. Anyhow, amongst several wild-hair inspired mods on my car over the past year, I decided (for cosmetic purposes) to move the coolant reservoir, to someplace other than the engine bay. I think they did a great job fabbing up something which looks OEM, and their kit is literally plug-and-play for any level of garage-mechanic; however, the engine bay looks cluttered with it. And I don't like cluttered engine bays. In fact, with the reservoir gone, I don't like where the ABS is either. Ah well, moving that will come some day :shiner:

Though I did it for purely cosmetic purposes, I did try a couple of configurations, including enlarging the liquid coolant capacity, using 2 pumps, etc. Just trying different things. In the end, I decided to use just the 1 pump and to not enlarge capacity. The additional lines running to the new location will add a bit more capacity, or keep capacity as it were--depending on the size of tank used.

Overview - Basically, what I did was purchase a new tank, something which would hide away where I wanted it hidden. You could use any tank you want, and place it anywhere you want. I wanted mine in the trunk, specifically hidden behind a carpet panel out of sight. I chose the cavity on the passenger-side, just in front of the brake light assembly. There's enough room for placement, and there's a liquid drain in that spot so in case something happens, the liquid just pours out onto the ground. I figure I'll have bigger issues with what causes that, than I do if I lose the coolant. I also purchased additional hose, hoseclamps, mounting clips and some aluminum tubes. I reused as much of the Magnacharger stuff as I could. I believe anyone can do this in a weekend for less than $75, and they can probably do better than what I did :shiner:

I grabbed aluminum tubing for a few reasons. When routing the tubing beneath the car, even though it's well out of the way of hitting anything, being hit or being snagged, I wanted to make sure it could endure a bit more impact than a hose would. Stainless-braided may have been the most industrial choice, however, was not within the budget. Also, I figured this could help with some of the heat-exchange between the liquid and the air. It may be able to return the coolant to ambient temperature in a more efficient manner. Copper would do this best, but copper tubing would corrode oddly under the car, and the eyesore wouldn't be worth the additional degree or two. Which leads me to the final point as to why I chose the aluminum, it at least looks like it somewhat matches with the underside of the car.

In addition, the extra hose I bought was some Earl's Performance Pro-Lite 350 hose. Ok so yeah, it technically isn't within the $75 budget either, but the hose is actually part of another mod for the future--spiffying up the engine bay.

Routing Diagram (not to scale, perspective, proportion, etc..)
Image


Engine Bay
Image


Driver's Side Fender well showing how I angled the hose
Image


This shows where I used the hole-saw. I used some hardcore enamel clearcoating and then baked it on, to ensure nothing would rust.
Image


This gives detail how I routed the tubing inside each front wheel area. Plenty of clearance away from the wheel believe it or not. Passenger's side was the hardest.
Image


This shows detail on how things look with the pump. I reused 2 Maggie hoses, just moved them a bit. Also notice that one tube I was mentioning running the width of the car "under" the radiator (but not within a heat zone)
Image


This is the driver's side showing the tubing under the car. It's got plenty of room.
Image


This is where I ran things into the trunk behind the carpet
Image


It's essentially the same setup, with more lines though. If you're wondering where the tubes go... one tube I have running along a brace under the radiator--not where it can pick up radiant heat, just trying to give you an idea of where it's at. The other tubes run one for a feed line one for the return. There's a total of 6 tubes on there, but I cut one of them in half and used the halves on each side of the car (in a tight space, you'll see in the photos). One tube runs inside the wheel-well, another tube runs beneath the car, and the "half" tube runs behind it--this is done for each side of the car. I didn't run them both together for a few reasons, mainly due to space constraints. I didn't want things fit too tightly together, and how I ran the hoses I had to drill through something and I didn't want to make the hole any larger than needed. Also on a smaller note, I figured why have the feed and return lines on top of each other? If the return line was a few degrees cooler by chance, the feed line would certainly equalize that.

Additional Notes - Now, although I didn't want to do this, I did use a couple of 90* pipe bends in my setup. I could've probably gone the extra mile to design around not using them, but I doubt it hurts the flow much because I'm already increasing flow over the Magnacharger setup. Has anyone noticed how small the ports are on the Magnacharger reservoir? They supply us with 3/4"ID tubing. The heat exchanger and intercooler both have about the same size ports, 3/4"ID. The pump is almost as large. However, the reservoir they give us is 1/2"ID on a good day. Iv'e seen one where it was barely 1/2". So flow is restricted there. With my tubing and reservoir, the only restriction points would be the 90* turn the liquid has to make in a few spots, and also the pump. Once I've run the system, it seems to flow a bit better than the original design--even with the 90* bends in place. So, I'm happy. You don't want too much flow because it won't give enough time-lapse for the liquid to exchange heat/absorb heat, but you don't want it too slow either. I feel mine is right where it needs to be.

The pro-lite 350 tubing isn't an exact 3/4" or 5/8" fit to get over the aluminum tubing, because it's rated as AN size. As such, I had to use some additional encouragement to get the hose on there. Once on there however, I really doubt it needs hose clamps to stay on. I did put them on though, since it's the right thing to do. Part of the lines run in the front wheel-well, but fear not as they're not anywhere near the tires or anything else which could wreak havoc. I was worried about it too but my measurements worked out well. If you're wondering about the hole-saw, I had to drill a hole out near the fender to run a line through it. You'll know what I mean when you see the photos. Also, I had to put the fittings onto my tank. If you could find one with fittings already, that'd be great. I accidentally broke one of the seals on the fittings to my tank, so I have to glue it back together haha..

In addition, the Pro-Lite is a stiff-walled tubing, and I suggest for some of the bends (specifically in the wheel-well area up front) you want a stiff-walled tubing, or else somehow make sure your junk doesn't kink. It may appear my hose is kinked going through that hole I cut, but it's not.

The only other thing to note is that with this additional tubing, the pump had issues priming the lines. There were some spots with air in them which I suppose the pump didn't like, and it wasn't able to prime the tubing by itself. I popped on a second intercooler pump (had a spare one in the garage), on the rear portion of the lines near the reservoir tank, and ran them both. Within a few minutes the majority of the bubbles came up to the top with a triumphant "ploomp!" noise, and I was able to turn off the 2nd pump and let the primary pump do its thing. I let the pump run for about 45 minutes while I did other work on the car, and by the time it was done, all the air bubbles were gone and it was pushing liquid just fine. With the system "bled" of air, the 1 pump works flawlessly.
 
#2 ·
Willow your idea allows to somehow add some cooling system to the recirculating flow somewhere along the line. Simplest would be a custom tank that has provisions for dry ice cooling of the recirculating coolant. let's keep an eye on this to see if some idea may work to lower IAT's.
 
#3 ·
Thanks. There's plenty of flow with the 1 pump, in fact believe it or not it's flowing at a higher rate with my setup than with the old setup. I believe because the old setup, there was a huge loss in where the magnacharger reservoir connects to the pipe. Go look at it yourself, it's like 1/2" diameter or smaller inside measurement, the rest of the system is almost 3/4". My entire system is almost 3/4", with some restriction on the elbows.

You can use a larger tank if wanted. In fact, if you really went the extra mile, it wouldn't be hard to sit a cooler in the trunk packed with dry ice, and then add a branch to the system to have it flow into that first. Really, it would be simple. I had it mocked up in a diagram. The only downside is making sure the liquid gets to the intercooler as fast as possible without losing too much to the outside temperature. The only other thing to consider at that point is condensation inside the supercharger air charge.
 
#4 · (Edited)
On a side note, I found out the maximum size single post is 10,000 characters. I also found out we can only link 10 photos per post. Hah..

More Side Notes:

It's an easy mod for sure, just takes some patience. So it's great for that early-spring or late-fall modification, when the leaves are changing and you just like lounging on the driveway with the cool breeze.

The aluminum tubing can be easily found at Lowes. Home Depot for some reason, doesn't stock that size tubing. At least, the 50 Home Depots in my area don't, it's not even on their stocking invoice. Lowes carries it. I had to travel to 4 different Lowes to get it though, they usually only have 2-3 pieces each, and usually most are bent from little kids grabbing them and playing Star Wars.

Stiff-Walled hoses are suggested, especially where you see the curvature in the wheel-well area. Over time a plain rubber hose, due to heat and wear, may loosen up and kink itself. You could alleviate it by simply putting a spring around it, using something stiff-walled and for long-endurance like the ProLite series, or even stainless-braided if you so desired.

There's ample clearance near the front tire, so don't worry about driving and hitting the aluminum tubing. I was at first, but I have almost 2" of clearance between the tire and the tubing, even with the tires turned to their greatest extent. I checked clearance on the tires both with steering at its extreme, as well as the front suspension's entire rebound. So whether your car's frame is sitting on the ground, or you've got it lifted 1' in the air, you have clearance ;)

Priming. This is what I think would be hard if you don't have a way to plug up a second pump. You could use any sort of motorized pump, even something which mounts on the end of a drill, as long as it can pump liquid. Like I said in the post, I ran a second maggie pump in the rear for a few minutes to help with getting the water moving from all the air in the lines. Now, I theorize if you somehow put the system in a vacuum, maybe that would help?

Additional coolant capacity. As spoken about in the reply above, you could place a large tank in the trunk with dry ice. It wouldn't be hard to splice into the system. Also, I did try this, I placed a large 1 gallon tank beneath the spare-tire tub under the trunk. I was also able to reinstall the plastic "guard" over top of it, and all was well. Note: I have my "Y" brace removed.

Also, the "black" painted tubes in the front wheel-well areas, that's not regular black paint. I used a radiator paint and hit them very lightly. Most paints will insulate in a bad way, radiator paint supposedly doesn't harm the heat exchange.

Hope this is of interest to someone.
 
#5 ·
As spoken about in the reply above, you could place a large tank in the trunk with dry ice. It wouldn't be hard to splice into the system.
Then you would need to re-route the hoses so that the "chilled" water doesn't get brought back down to ambient through the front mounted heat exchanger, correct? The water would be routed through the heat exchanger after passing through the intake manifold I would think.

Anyway, nothing I would try as my IAT numbers are not what I consider to be very high if I keep my fans on in the stop and go. Willow, what kind of IAT numbers are you seeing? My blower is spinning at stock speed, and I know you're spinning yours faster, so I'm just wondering what your numbers are.

Personally, I think the relocation of the coolant tank is beneficial in not allowing the engine bay temps to heat it when the fans/engine are not on and in stop and go driving, but with the DashHawk, my fans are on at any time I choose to turn them on. If the fans are not on in stop and go driving, the heat from the radiator and condensor will radiate forward to the heat exchanger. DashHawk just seems easier than all this.
 
#6 ·
Well, the additional tank I put in I was using it to compliment the reservoir. The reservoir, instead of feeding right back to the system, would feed into the 2nd tank, and from there it would run back into the system. One benefit I could see from that is the second tank is continually cooled by air beneath the car flowing across it, with rare exception to those bursts of heat from when the fans kick on--or if you're parked over steaming tarmac.

I decided I didn't need the additional tank there, plus with my car getting lowered to the ground, I didn't want a possible hazard--although a 2nd in-trunk tank could be setup. I'm doing some other work with my trunk, and don't want it to get cluttered.. darn me for not wanting things cluttered. :shiner:

Regarding IATs, I won't have solid data until I can drive it on a daily basis. Right now I'm still putting the car back together and have only done some sporadic driving with it. I've got some bugs to work out still. The few times I checked my IATs with my friend's scanner last year when I was spinning the S/C stock, it wasn't abnormal for me to bounce between 120-140 for daily driving. We'll see how things work out now. I wish I could've correlated data before and after this mod. Hopefully someone here will do a similar relocate mod and do that logging for us to show before/after information.

And I agree, moving the tank from the engine bay keeps the water from absorbing heat and ultimately becoming swamped with increased temperature. Although the plastic is thick on the Magnacharger reservoir, after about 20 minutes of driving, you could shut my car off, go back and check the liquid an hour later and it was still very warm.. so this will hopefully alleviate part of that.

It should also help with the guys who hit a switch to turn their fans on while the intercooler pumps (with the motor off) to cool the system between runs down a dragstrip.
 
#7 ·
willow

great job as usuall we done this last year with great results. another option that i will do is spend the time moving the batt to the trunk and putting a nice water tank up front in place of the ugly batt. less chance of leaks and closer to the heat excanger. great job
 
#8 ·
great job as usuall we done this last year with great results. another option that i will do is spend the time moving the batt to the trunk and putting a nice water tank up front in place of the ugly batt. less chance of leaks and closer to the heat excanger. great job
Thanks Thomas, I remember seeing your car at the FB lastyear and I didn't recall seeing a reservoir up front. I like a classic clean look, plus it moves things to the trunk. I thought about moving my battery to the trunk also, but I've got other plans so we'll see how it works out.

Thanks for the props :D
 
#9 ·
Willow, have you thought of or tried a fuel chiller can in this system? Plumb it in and then pack with dry ice. That should reduce some IAT's.

Might be worth looking at.

GL

C