running a series of intercoolers?
 

i was wondering if anyone use multiple intercoolers..

i have 2 dsm side mounts in my garage and was wondering...would it be effective to run 2 of them..as to run 1?

Re: running a series of intercoolers?
 

I saw a car once with 2 4" thick sidemounts 1 in each fender well. Thicker cores are best, so I reckon the 2 stealth 4" sidemounts cooled as good if not better than a 2.5" or 3" thick frontmount.

Re: running a series of intercoolers?
 

longer cores are better than thicker aren't they?

Re: running a series of intercoolers?
 

its all about surface area

Re: running a series of intercoolers?
 

sounds like more work than its worth.

the intake charge would also have to split up and collect twice going through two intercoolers.

Re: running a series of intercoolers?
 

Newer Audis run 2 intercoolers. Its not really necessary unless you have serious space constraints. You could find someone who can tig and find another dsm intercooler, weld all three together for a very effecient front mount. Ask JD about this. :6

Re: running a series of intercoolers?
 

If you mount the 2 in a serial manner, there will be a lot of flow restriction and the air will move at full speed in both intercooler.
Since you already have them, you can split the turbo outlet in 2 pipes feeding both intercoolers separately, so they will flow half and every bit of air will be half disturbed, then if you build your manifold you can merge them after. Two well angled sharp Y will provide less turbulances.

Re: running a series of intercoolers?
 

Re: running a series of intercoolers?
 

just run them inline if your doing two sideomounts, less hassle less work.

or just stop being cheap and get a front mount.

Re: running a series of intercoolers?
 

CHEAP is what this site is about NIG-NOG!

Re: running a series of intercoolers?
 

Thicker cores are not best.

Surface area is what you want as previously stated.

Re: running a series of intercoolers?
 

A thicker core still has more surface area though obviously

Theres just that much more cooling fins deep

The fins dont stop right at the front, there still getting air in the middle and at the back of the intercooler.

I was tight for space with my new setup so I went with a 12"X 12" X 4" backdoor intercooler.

Just cut off the end tank on two of them and weld them together and run it as a front mount if you already have the 2 coolers though

Re: running a series of intercoolers?
 

i already got these laying in my garage...so i might as well use them...

i dont feel like hacking up my bumper support

Re: running a series of intercoolers?
 

That is just plain retarded. just hook them up inline it's easier.

yeah cheap, but not stupid. Either hook them up inline somehow or buy a frontmount. ---- splitting the charge between both or welding them together, that's just stupid. You'll either have a shitload of piping if you split the charge or you'll have a monstrosity of an intercooler by welding them together.

Re: running a series of intercoolers?
 

:3 :3 :3

Re: running a series of intercoolers?
 

I Think he was talking about in series not in parallel i would rock them in series if i had them.
I have seen someone use a front mount and a side mount to divert the charge pipes to the engine bay.

Re: running a series of intercoolers?
 

I say you do a top mount intercooler with b >:Doth of them. Just cut two holes in your hood and mount the sidemounts part way through it on either side of the motor. That way you can save the MOST money and look ghetto at the same time ::). I'd say HMT is all about cutting costs where it's wise to, not just purposely hacking ---- for no apperent reason. At least I'd hope so :S.

Re: running a series of intercoolers?
 

Mounting them in parallel ain't retarded, it would be getting the most efficiency out of what he already have, why having twice the choke of an intercooler, while you can reduce it by half ?? Yep more piping, sure, it's not the laziest option, but the most efficient in term of lost pressure. He will decide tough, since he drives it. Simple, divert the pipe right before the first intercooler, run the pipe over or under the first IC, then it connect to the second while the outlet of the first now passes by the second and merge together.

Re: running a series of intercoolers?
 

Yeah but if anyone making a turbo kit was worried about intercooler efficiency then they most likley arn't doing a ghetto sidemount setup, and they would probably buy a front mount. Parallel would work, don't get me wrong, it just seems like alot of routing and mounting ---- for results that aren't really worth it when you could just get a cheap ebay front mount, or just use one sidemount.

Re: running a series of intercoolers?
 

http://img181.imageshack.us/img181/5...ntercooqv2.jpg

I wouldl still rock it! ;)

Re: running a series of intercoolers?
 

In this regard you are definitely right, few bucks to lay on top but with all piping fiting (unless he's welding), could offset the price.

Re: running a series of intercoolers?
 

---- that. You couldnt give me a ------- newer audi. The old five cylinders kicked ass...but the new ---- absolutely sucks. Dont even get me started on the 1.8T...

Re: running a series of intercoolers?
 

i had seen somewhere somebody had taken two dsm sidemounts and cut the end tanks off of one side of each and had it welded together to make one big one. wasn't a bad idea if you ask me, even if you don't knwo how to weld aluminum i'm pretty sure a shop would charge too much.

Re: running a series of intercoolers?
 

JD did this on his HF, but he used 3 1g dsm sidemounts, of course, this was back in the day when frontmounts were still like $1000 and nobody knew what a honda could do...

Re: running a series of intercoolers?
 

thanks for the replies...lol..way more then i expected...

i was gunna see if i could run them like the audi up top...but now you guys got me thinkin about putting them inline..

hmmmm

maybe i should just use one..lol

Re: running a series of intercoolers?
 

he's right...the thicker a core is, the more surface area it has.

Re: running a series of intercoolers?
 

core thickness and length of intercooler aside, if you hook them up inline/series your flow will be restricted because of the connection you have to make...use one..or hack them and get the cores welded.

Re: running a series of intercoolers?
 

think about it, if you have a 1" thick intercooler thats 24"x24", thats 576"^2 getting 70* air ran through it

now if you have a 4" thick core with the same area thats 12"x12" (12*12=144*4=576) so now your getting 144"^2 getting 70* air, taking away from a your hot intake air, then 144"^2 getting 120* air pushed through it, then 144"^2 getting 160* air pushed though it then 144"^2 getting 200* air pushed though it. now i made up those numbers, but it should be close, thats an average of 137.5*

whats more efficent, 576"^2 getting cooled by 70* air, or by 137.5* air..... you just reduced you intercoolers efficentcy by 49%.... big difference huh

Re: running a series of intercoolers?
 

now i could be wrong, but it seems like you pulled that out of your ass. either way, i wasnt saying to have an immensly thick ic that was not very large in frontal area, just that if you take a given ic size and make it thicker, youre increasing its cooling surface area

Re: running a series of intercoolers?
 

Im going to completely disregard your statement for not speaking english and probably making a mistake...

You weld them cores together yet?

Re: running a series of intercoolers?
 

the only thing i pulled out of my ass is the temps, but anyone can see if you have a big aluminum box filled with hot air, as the cold air goes through it, the cold air is going to get hotter

Re: running a series of intercoolers?
 

So basically, as i was trying to explain, the largest, thinnest intercooler is the most efficent.

Re: running a series of intercoolers?
 

there was a 300zx in the latest modifidied mag with dual sidemounts.

Re: running a series of intercoolers?
 

he even says right in the passage you quoted that increasing thickness will increase efficiency, but as you go thicker and thicker the gains in efficiency will not be as great. Basically you need to find a happy medium.

didnt they come with dual sidemounts?...its a bit easier/more practical if the car is twin turbo

Re: running a series of intercoolers?
 

I'd have to agree with tealcherokee in regards to larger IC's height and length wise are better than IC's with thicker cores. Here's a quote from corky bell's maximum tuning, "Core Thickness Choosing the thickness of the intercooler core is a bit of a juggling act similar to the turbulators. The juggling act is brought about by the fact that the second half of any core does only one-fourth the work. Adding thickness to the core will indeed improve efficiency, but the gains become less and less. Another negative effect is brought into play by increasing the thickness: the increasing difficulty of getting the ambient air to pass through the core."

Re: running a series of intercoolers?
 

lol.... i just quoted the same thing..... great book, defintly worth the $40

Re: running a series of intercoolers?
 

thats comparing 2 intercoolers of differnt thicknesses, with the same frontal area.... so a 12x12x2 vs a 12x12x4 double the suraface area, 25% more cooling. double the surface area and leave the thickness the same.. 100% more cooling

Re: running a series of intercoolers?
 

well in my experience its usually easier to go thicker than to go much bigger in frontal area. Im not arguing with you, just saying that there is a practical limit to the dimensions of an ic, and in most cases i dont see the need to go to extremes in either frontal area or thickness

Re: running a series of intercoolers?
 

Sig material :y

Re: running a series of intercoolers?
 

Things that you have to put into consideration:

Internal volume, IE how restrictive is it at a given cross section (vs overall). That restricts flow, obviously, but also a higher velocity inside leads to better heat exchange.

External airflow, which is both the mass moving though it, and how easily it can move through it. To give you a better idea, assume both fmic's are 24" long: a 12"x3" core will have just as much internal volume as a 6"x6" core, but air will want a move MUCH slower through the thick 6x6, because of pressure drop. It essentially slows the air down too much. WIth fmic's its not a big issue, since that large of an air mass being pushed through it at even 30mph wont' slow down much for anything. It will try to go around it though...

As mentioned, use two smaller ones if they can support the flow and you have no reason to go with a big fmic. I saw two stealth cores on ebay, but the owner expected a shitload. I was also thinking of that if I ever wanted to use a car w/o AC and maxamize cooling to the radiator.