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  1. #1
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    Meth + intercooler

    I plan to go FBO soon and have been looking at intercoolers. I already use meth so should I be looking for a core that offers the lowest pressure drop? The car is used as a DD and won't see any lapping sessions.

    Appreciate any insight a/o suggestions as I couldn't find an intercooler comparision chart on the forums.
    FBO / HFS-4 / Cobb PTF tune

  2. #2
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    Click here to enlarge Originally Posted by redlineryder Click here to enlarge
    I plan to go FBO soon and have been looking at intercoolers. I already use meth so should I be looking for a core that offers the lowest pressure drop? The car is used as a DD and won't see any lapping sessions.

    Appreciate any insight a/o suggestions as I couldn't find an intercooler comparision chart on the forums.
    Its hard to find solid data on intercoolers, because inherent to their design, if the core is great at lowering temps, it will have a larger pressure drop. I personally went with the "Big Tom" style intercooler, it was cheap, the pressure drop is negligible, and the massive size allows it to supress IAT's very well.
    2011 E90 M3 \ Melbourne Rot Metallic

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  3. #3
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    You are exactly correct, you'll want the lowest pressure drop since meth wil be handling IAT surpression. Someone on here did some testing a while back I think. It was found that the AMS FMIC had the lowest pressure drop and best fin design i think. Helix was better at IAT surpression but had more pressure drop. I think VRSF may be a good low cost option as I'm pretty sure it's an AMS knockoff. ETS was in the middle on both pressure drop and IAT surpression. I had an Agency Power FMIC that has a similar core design to AMS but the end tanks were a little different and looked like it could create some unwanted turbulence. I liked it, it wasn't great for IAT surpression buy my WGDC was always pretty decent even at 19.5 PSI.

    Click here to enlarge Originally Posted by redlineryder Click here to enlarge
    I plan to go FBO soon and have been looking at intercoolers. I already use meth so should I be looking for a core that offers the lowest pressure drop? The car is used as a DD and won't see any lapping sessions.

    Appreciate any insight a/o suggestions as I couldn't find an intercooler comparision chart on the forums.
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Id go with AA, or helix, but thats just me

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    Helix

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    I have the VSRF one.. Does the job very well. Just be ready to trim.

  7. #7
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    Helix has the most pressure drop of all the ones tested. He doesn't need the FMIC for IAT surpression which the Helix is best at. He's looking to upgrade the stocker while keeping pressure drop to a minimum. Helix is the opposite of what he's looking for.

    Click here to enlarge Originally Posted by E90Company Click here to enlarge
    Helix
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


  8. #8
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    1 out of 1 members liked this post. Yes Reputation No
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    Im on my phone so can't read much, but what I gathered is they tested the old end tank helix design?

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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    Repped. Thanks, that's a great thread and exactly what I was looking for. I am leaning towards the AMS unit for my purposes.
    FBO / HFS-4 / Cobb PTF tune

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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    except i believe that is the original helix fmic (ie have newer design) and there was a 20+ thread with the helix designer and a few people discussing the difference and pro's/cons of each

  12. #12
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    3 out of 4 members liked this post. Yes Reputation No
    The truth is it is all very small differences. You won't notice much.




  13. #13
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    Click here to enlarge Originally Posted by redlineryder Click here to enlarge
    Repped. Thanks, that's a great thread and exactly what I was looking for. I am leaning towards the AMS unit for my purposes.
    For your situation/setup/needs i say thats a great choice too
    Click here to enlarge

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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    There you go.

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    Yes. This was not with the new helix design. It'd be interesting to see if there were pressure drop improvements on the new Helix. It is certainly very good at lowering IATs, if it reduced pressure drop also, that would make it one of the most well rounded on the market. No data on it yet though.

    Click here to enlarge Originally Posted by E90Company Click here to enlarge
    Im on my phone so can't read much, but what I gathered is they tested the old end tank helix design?
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


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    Didn't know Helix had a new design.

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    I didn't either LOL, but the other guy above sounded pretty sure haha. For real though, I remember hearing about an updated design. I'll look around for some info.

    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Didn't know Helix had a new design.
    2011 335is DCT, JB4 + MHD BEF, stage 2 LPFP, e50 + 50/50 meth, FBO, MT ET Streets when needed


  18. #18
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    Helix does have a V2 version that's been out for some time now. They've redesigned the sore point of the V1s which had subpar end tanks. The core stayed the same through v1 and v2 as that core is as good as it gets IAT control wise on this platform.

    Just like with turbos (big top end, bigger turbine, more lag type of trade off), with FMICs its better IAT control, more pressure drop. The thing to keep in mind is how the FMIC works/cools air down. It has to KEEP the air inside the core longer to properly cool it down, which naturally means more pressure drop. Combine it with a great efficient core with plenty of frontal area and you've got a great FMIC capable of superior IAT control.

    With meth that becomes moot and what you want is just a decent FMIC with minimal pressure drop. Helix redesigned their end tanks in V2 but AMS still has the best in that respect. On stock turbos AND meth if it came to Helix vs. AMS, AMS would probably be my choice. Without meth I'd go with the Helix.

    In the end, with meth on the car, just get one that fits your budget. If you have the money for it go for the best. We carry many different quality brands, they'll all do a MUCH better job than that little sad and crappy stock fmic Click here to enlarge
    Last edited by dzenno@PTF; 05-02-2013 at 12:23 PM.
    Click here to enlarge

  19. #19
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    I'm not trying to do a vs thread here but what about the HPF INTERCOOLER?

  20. #20
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    Click here to enlarge Originally Posted by N54 TURBO Click here to enlarge
    I'm not trying to do a vs thread here but what about the HPF INTERCOOLER?
    It's yet another option.

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  21. #21
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    this is the problem i have

    too many options, not enough hard logged mathematical data

    it'd be great (perfect in fact) if there was empirical evidence of the pressure drop/IAT delta etc. etc. every positive function an IC can have.. i'm sure it's not even difficult to get these ESPECIALLY for the manufacturers.. like the white papers CP-E produced for theirs as far as i can remember

    surely you could set up a simple bench with sensors that blows hot pressurized air in and measures it with a few sensors?

    at least i'd really like to have direct swap comparisons from one IC to another.. but that's even less realistic to expect lol.

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