FMIC and SMIC

[dsmmaniac12787]

Ok so Im sitting here online trying to find some cheap piping for my godspeed fmic. Im looking at all these peoples pics of front mounts and there is this one guy who says he has his front mount, but also left the smic on. The thought enters my head...


Could you route the intake side of your fmic to go into the hot side of the smic? Then run the other side of the fmic to the turbo. Can it work like this? Or is this just an incredibly stupid question? Im not really familiar with how intercoolers work, if thats not already apparent.

 

[DSM_PWR]

Id imagine it will work but i doubt it would be more efficient that just a front mount. Think of the lag your would get..

 

[jrohner]

Why run the air through a high-flow FMIC, then through the low flowing SMIC? Sounds like a good way to loose power.

 

[skipdownstairs]

Sounds like a good way to loose power.

Do not run a smic and a fmic. It wont hurt anything but the smic is restrictive already plus your going to add the fmic to the equation making the air go through 2x the intercooler.

Just buy a good fmic like jrohner said and you will be fine and if you don't think its cooling the air down throw on a methanol injection setup, you'll love it!!

 

[dsmmaniac12787]

Ok, I figured it was a dumb question. But now I know...

Thanks

 

[Freerevving]

seems to me you could just use a larger fmic... if you still need more than that, then you must be shooting for 1000hp.

how bout two smic's and one fmic??

it would work, but it's totally unecessary

 

[ummdsmwhat]

seems to me you could just use a larger fmic... if you still need more than that, then you must be shooting for 1000hp.

how bout two smic's and one fmic??

it would work, but it's totally unecessary

that would make a T25 turbo lag like a GT35R haha

 

[H82lose91]

Pressure drop is all im going to say. =)

 

[webconnect]

That's actually one of the most common myths in the turbo industry, that a large core will increase pressure drop and spool time when actually the opposite is true. The larger core will be freer flowing thus backpressure is reduced to basically none and spool, response and top end flow will all be maximized. The amount of time it takes even a very small turbocharger to fill the extra volume (there's a good thread on how much time it takes an EVO III 16G to fill 10 feet of 2.5" piping here on Tuners) is such a small fraction of a second that the high flow of the larger core will have only a positive impact on spool and response.

Tom - ETS

Burn this into your heads

 

[H82lose91]

Guess i should have clarified, that was point in relation to using the sidemount as well as the front mount. Not only are the SMIC restrictive but heat soak is another problem.

 

[ummdsmwhat]

^ heck yes. SMIC heat soak so quickly. i had the fuel built up getting ready to put the 16g on and was still running the T25. i hooked the SMIC back up to see what would happen and i got beat by a RSX-S going up hill and i felt such a power loss. the next day i ripped it off and hooked up my FMIC and it free'd up so much power. even on a T25

 

[BoredDSM]

FYI when air is compressed it increases in temperature making air molecules bigger. Your basically making air cold then heats it up a little going exiting the intercooler into the pipes then back into a smaller intercooler casing it to be cold but not cold enough then making it really hot again by compressing it again. Not efficient and sorry for the run on sentence.

 

[dsmmaniac12787]

My fmic is used. I got it from a friend who had a 1g. Its a little bashed up. The fins were bent in a lot of places and there are a couple dings here and there. I straightened out the fins so they look somewhat like they should now. Is there anything I should look out for as far as damage?

 

[H82lose91]

Holes, thats about it.

 

['92eclipsegst]

FYI when air is compressed it increases in temperature making air molecules bigger. Your basically making air cold then heats it up a little going exiting the intercooler into the pipes then back into a smaller intercooler casing it to be cold but not cold enough then making it really hot again by compressing it again. Not efficient and sorry for the run on sentence.

Um....no. When air is compressed the molecules do Not get bigger. As for the rest of your post, I have no idea what it means.

 

[BoredDSM]

Um....no. When air is compressed the molecules do Not get bigger. As for the rest of your post, I have no idea what it means.

If you pass air through a really big pipe then try to force it through a really smaller one, the temperature will be higher when entering the small pipe. Basic physics. The molecules are closer together when you push it from a big pipe to a small pipe thus increasing friction.

 

['92eclipsegst]

If you pass air through a really big pipe then try to force it through a really smaller one, the temperature will be higher when entering the small pipe. Basic physics. The molecules are closer together when you push it from a big pipe to a small pipe thus increasing friction.

Sure the temp increases because pressure increases, which means the molecules are close together not that they are larger.

 

[BoredDSM]

Well, I didn't mean it would physically be larger I mean it would expand and that 1 molecule of oxygen would bounce around more and require more space thus you would have less air going in.

 

[twack]

O hell wheres brian (98gsx). he is the one whoe did this and posted the picture of it. He only did it to get around for a day or two, it was more of a joke and lack of pipe that day then any real modification.

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[webconnect]

te hehe

 

[dsmmaniac12787]

Well I suppose since it has to do with piping, I will go ahead and post on this one...

I went out and got some abs piping (temporarily until I can get something better) and I actually think it looks a lot better than before. Before I had that nasty lookin hacked and welded exhaust piping that came with the car. There was a harsh 90 degree angle on it to. My dog could have done a better job welding....

The main reason I replaced it though is because my 1g bov wasnt working. I kept hearing that "fluttering" noise. So I went to the junkyard and found a stock bov from a saab. Looked about the same as a stock 2g bov. Which obviously isnt great, but I figured hell if it works its better than nothing. And just my luck, it doesnt work. Im still hearing that fluttering noise! It looked like it was in good shape. Is it possible there is another problem? Something with vac maybe? Or do you think I just need a brand new bov? Is there any way to test a bov?