Double intercooler?

[snakeyes711]

I been thinking on getting a front mount. I've been studying on how, an dwhere to route my lines for it. Then I came up that I could connect the two intercoolers together, and run the stock one too. Has anybody done that or would it just be too much of a drop for pressure to do it?

How I'd run it is run the turbo outlet to the inlet of the front mount then simply connect the outlet on the front mount to the stock intercooler. Maybe I'm fishing here

 

[marcmsj]

Have you looked at the inlet/outlet size of your stock intercooler lately? That would be a major bottleneck.

 

[TurboTsiThatFly]

I been thinking on getting a front mount. I've been studying on how, an dwhere to route my lines for it. Then I came up that I could connect the two intercoolers together, and run the stock one too. Has anybody done that or would it just be too much of a drop for pressure to do it?

How I'd run it is run the turbo outlet to the inlet of the front mount then simply connect the outlet on the front mount to the stock intercooler. Maybe I'm fishing here

ive seen higher Hp cars use two intercoolers. but idk if it would be beneficial to a factory turbo car. that and you would prob get a lot of pressure drop

 

[Ceddy]

Its much better to use one large IC, then two small ones.

You add the pressure drop of each IC together, usually two small IC will have a greater drop then one larger IC.

Small IC will heat soak faster also.

 

[habitatguy187]

Small IC will heat soak faster also.

But it wouldn't get very hot since the air would go through the fmic first. Also I know that the 2g intercooler has larger diameter pipes in and out, but I'm not sure if they'd be large enough.

As far as the pressure drop I highly doubt it would be noticeable, and the length of the piping has already been proven to pretty much not matter at all since a lot of the new turbo systems for v8s are putting the turbos at the back of the car near the mufflers (if they even use mufflers at all)

In conclusion I think that it might be something worth looking into after you start getting knock with just the fmic alone, which might not take much as hot as it gets in the summer.

 

[snakeyes711]

The front mount I bought was a cxracing. it has 2 1/4 inlets. I got the 28x6x3 inch I think that'd be more then enough for how I got the setup now, if I upgrade later I'll get a bigger one. Besides I don't really want to cut out the bumper.

 

[airmail96]

You could also upgrade the the inlet and outlet sizes of the stock one to match the FMIC outlets. The thing is though I don't really think that you will gain much by running both. I know greg coiler (sp?) ran a v shaped front mount on his race car. You can also improve airflow to the intercooler by completely preventing air from going around the intercooler like some members have done.

 

[DSMunknown]

I think you missed this thread in your search.


http://www.dsmtuners.com/forums/new...n-twin-double-two-duel-stage-intercooler.html

 

[tkelly27]

http://www.thedodgegarage.com/reliant/reliant_51.jpg

That's the only way I can advise adding intercoolers. That will also become a front mount, which when you already have one, you don't need a second one.

The readers digest of that thread:

When you add them in series (one IC flowing into the other) you add the pressured drop of the two together, and the efficiency of the second core will be dramatically less than the efficiency of the first. If you absolutely must have the coldest temps for some reason (none that I can think of) it's an OK idea. If you want to go fast, it is a bad idea. Adding the extra cork in your works will probably cause turbo outlet temps to be higher, and require more work from the turbo for the same boost at the manifold, which is always a bad thing.

Adding them in parallel (inlet splits off from turbo to both IC's, outlet from both comes back together for the throttle body) you get a ton of IC piping, lower pressure drop. However, you can run the risk of the higher flowing core getting all the flow, which would make the system pointless. You could tune them by adding restrictions.

Ultimately, just running the front mount is the best idea. Less to break, less to leak, less clutter, and you can sell the SMIC to a honda kid for beer money.

 

[snakeyes711]

Thanks for that link, I read it also, it didn't cover what I'd thought about doing. but thanks anyways.

well I guess its settled then off it comes. I'm just going to route the piping right up to where it goes down to the stock intercooler.

BTW does anyone have any advice on fixing a IAT sensor thats reading wrong other then a resistor mod or anything?

 

[habitatguy187]

BTW does anyone have any advice on fixing a IAT sensor thats reading wrong other then a resistor mod or anything?

Isn't that sensor located in the mas?

 

[snakeyes711]

Right I believe its reading off. I don't have access to my volt meter because my pops has it.

Its been working its way up pasts 100-110* lately, and from what I've researched that not only pulls timing but fuel too. Funny as today I noticed my low fuel trims at 113%.

 

[snakeyes711]

This morning its 61 outside, and I clicked my palm on, and the IAT read 64. So it may or may not be wrong.

BTW without starting a new thread, I got this intercooler, and I been looking at installing them. I need some piping for it. I only am going to need it from the turbo, and from the intercooler to the spot where the factory intercooler used to be.

I guess I'll need one j pipe for the turbo to turn down, and one there to wrap around to the intercooler. the other side I think a 90* elbow straight back, and then route it up to meet the rest.

 

[habitatguy187]

Take a pic of the progress, I've been looking at getting a fmic for quite a while and with my boost turned up and the weather getting hotter I now know that I need one.

 

[snakeyes711]

hey, will do. I wish I knew how to have the ecu see the ait at like 80 or so. I'm going to do some things see if I can't get that air box temp down. I really need a top heat shield. Also the hose running to the upper radiator goes right next to the air box. I bet money thats one thing thats doing it. I found that with the stock thermostat 192 the intake temp was through the roof. then I put a 180, and they went down like 20* just with a new thermostat. Then I'm going to box off that filter area next.