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View Full Version : Why only opposite side inlet/outlet FMIC's on NA-T's??


Jer
08-28-2005, 05:43 PM
I was just wondering why everyone runs a FMIC that has the inlet and outlet on opposite sides for the NA-T. Wouldn't it make far more sense to run on that has the inlet and outlet on the same side? Seems to me the following benefits could be realized from this set-up:

1) Less pipe: Less pipe means decreased area that needs to be pressurized which in turn spells less turbo lag... even if it is slight as every little bit helps. It would also be less expensive in terms of materials needed for the pipe as well as labor to fab all the angles and curves.

2) Straighter pipe: Again, the straighter the pipe the less turns the air has to make and the better the flow. Decreased back pressure which means better airflow. Again, may not be huge but when you're talking about polishing your intake runners to get every advantage you get why not this as well?

3) Ease of install: I hear a lot of posts with people having to relocate or bend lines to make room for the outlet pipe on the drivers side as well as a few other parts. Having the inlet as well as outlet on the passenger side would negate to need to move any of this.

I just wanted to start this discussion as I've never seen it yet nor have I seen an NA-T using this style of intercooler. Feel free to throw in your two cents regardless if it's supporting this idea or not. Perhaps there's some reason I missed for the 'usual' FMIC. For those who aren't sure what I'm talking about I've attached a photos below so you can see what I'm talking about.

http://www.roadraceengineering.com/parts/icpics/rre1gickit01.jpg

Supra4ever
08-28-2005, 10:24 PM
http://www.roadraceengineering.com/parts/icpics/rre1gickit01.jpg
The endtank are on top bottom, this FMIC will work perfectly fine and probably more efficient for NA-T with stock intake manifold.

Shorter IC piping=slightly less lag.

I have seen FMIC with endtanks on top/bottom on TT Supra before, you can find pics on Supraforums.

Jer
08-29-2005, 02:20 AM
I think I may go with something just like this:

http://www.promotionsupplies.com/temp/ebay/IC/31x12x4oneside/31x12x4oneside_f.jpg
http://www.promotionsupplies.com/temp/ebay/IC/31x12x4oneside/31x12x4oneside%20size.jpg
http://www.promotionsupplies.com/temp/ebay/IC/31x12x4oneside/31x12x4oneside_1.jpg http://www.promotionsupplies.com/temp/ebay/IC/31x12x4oneside/31x12x4oneside_2.jpg

It has the looks/measurements of the standard size and is side mount... best of both worlds. This looks promising but I'm gonna have him find the same thing with 2.5" inlet/outlet as I don't like the idea of going up and down a lot in size. GT35R has a 2.5" outlet on the compressor and then run 2.5" pipes and same on the FMIC and I'll be good to go.

Dramon
08-29-2005, 01:59 PM
if you think about it, i doubt you even save that much piping with that kind of setup becuase with an opposite side endtank you run it back through the enigne bay instead of alll the way around like in those pics.

Supra4ever
08-29-2005, 11:06 PM
This looks promising but I'm gonna have him find the same thing with 2.5" inlet/outlet as I don't like the idea of going up and down a lot in size. GT35R has a 2.5" outlet on the compressor and then run 2.5" pipes and same on the FMIC and I'll be good to go.
Jeremy,
you can use reducers, my IC pipings are also 2.5", but the outlet and inlet on the my FMIC are 3", so I just use reducers, no illeffects.

Jer
08-30-2005, 12:30 AM
Jeremy,
you can use reducers, my IC pipings are also 2.5", but the outlet and inlet on the my FMIC are 3", so I just use reducers, no illeffects.

I know I can but would rather not step up and down when not needed.