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      11-12-2013, 11:50 AM   #1
Ragi Elias
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Cobb FMIC impressions?

I don't see many people posting about the Cobb FMIC. I know it's relatively new.

I was wondering who has it, and impressions.
If you owned another FMIC before or after your Cobb, your impressions would be most valuable.
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      11-12-2013, 01:47 PM   #2
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Great question. We've sold a bunch. Haven't heard much since their initial release and a few inquiries.
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      11-12-2013, 02:12 PM   #3
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I switched from my cp-e fmic to the cobb because I wanted more frontal face surface area. my wgdc went up ever so slightly (not really a whole lot enough to make a huge difference) and my iats dropped about 8-9 degrees with the cobb fmic.
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      11-12-2013, 03:53 PM   #4
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Quote:
Originally Posted by Stucks
I switched from my cp-e fmic to the cobb because I wanted more frontal face surface area. my wgdc went up ever so slightly (not really a whole lot enough to make a huge difference) and my iats dropped about 8-9 degrees with the cobb fmic.
Per my understand, lower iat is good.
Never heard of wgdc though. What is that? Is an increase good or bad?
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      11-12-2013, 03:57 PM   #5
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Quote:
Originally Posted by Ragi Elias View Post
Per my understand, lower iat is good.
Never heard of wgdc though. What is that? Is an increase good or bad?
IAT= Intake Air Temperature. Put simply, the temperature of the air that is about to enter the combustion chamber. Yes, lower is always better across the entire system.

WGDC= waste gate duty cycle. Put simply, how hard the turbos need to work in order to flow X amount of air. Sparknotes: less WGDC= less work on the turbos. So in his case he saw slightly higher duty cycles, likely due to the increase surface area and corresponding pressure drop. The increase in duty cycle was likely minor.
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      11-12-2013, 04:24 PM   #6
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It's hard to get one without the other. You can only decrease IAT so much. At the same time you don't want to slow down the air too much where you increase your WGDC and overspin your turbo's.

In the case of intercoolers I think just like the majority of offerings the Cobb FMIC has found a happy medium of suppressing IAT and minimizing WGDC.

I'm sure the difference in WGDC is negligible. Something like 12% increase or more would be something worth noting. I doubt it was that severe for "stucks". It's also worth noting ambient conditions, DA, elevation and humidity will all factor into WGDC so it could have just been a difference in exterior conditions.
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      11-12-2013, 04:41 PM   #7
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Great explanations guys.

Would still love to hear more impressions from Cobb FMIC owners.
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      11-12-2013, 05:05 PM   #8
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Quote:
Originally Posted by Ragi Elias View Post
Great explanations guys.

Would still love to hear more impressions from Cobb FMIC owners.
Itís a stepped core design, honestly Iíd imagine it performs very similarly to the Helix intercooler. Which is to say itís very good.

I donít see anything revolutionary with the end tanks, fin pack, inlets or outlets. It just looks like a really nice piece, I strongly doubt youíd find it insufficient or lacking. COBB makes good stuff.
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      11-12-2013, 05:08 PM   #9
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Quote:
Originally Posted by 135Pats View Post
Itís a stepped core design, honestly Iíd imagine it performs very similarly to the Helix intercooler. Which is to say itís very good.

I donít see anything revolutionary with the end tanks, fin pack, inlets or outlets. It just looks like a really nice piece, I strongly doubt youíd find it insufficient or lacking. COBB makes good stuff.
I'd have to agree. At this point the offerings really come down to what style you want and whos brand you want to rep.
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      11-12-2013, 05:24 PM   #10
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I see a lot of VRSF FMIC love on the forums here. I was hoping to see if anyone made the switch from VRSF to the Cobb/Helix or vice versa.

I don't think VRSF is stepped core. Is stepped core a superior design?

I know VRSF is half the price, but cost aside, is VRSF an equal performer with Cobb/Helix.
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      11-12-2013, 05:29 PM   #11
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Quote:
Originally Posted by Stucks View Post
I switched from my cp-e fmic to the cobb because I wanted more frontal face surface area. my wgdc went up ever so slightly (not really a whole lot enough to make a huge difference) and my iats dropped about 8-9 degrees with the cobb fmic.
Worth the switch? On the fence about cp-e vs Cobb. Did cobb for without trimming? Would you do it again?

Thanks
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      11-12-2013, 05:56 PM   #12
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Quote:
Originally Posted by Ragi Elias View Post
I don't think VRSF is stepped core.
Not yet

Quote:
Originally Posted by Ragi Elias View Post
I see a lot of VRSF FMIC love on the forums here. I was hoping to see if anyone made the switch from VRSF to the Cobb/Helix or vice versa.

I don't think VRSF is stepped core. Is stepped core a superior design?

I know VRSF is half the price, but cost aside, is VRSF an equal performer with Cobb/Helix.
I'd love to see a comparison myself to be honest. Every comparison I've seen with our intercooler vs a competitors has always been in our favor but it's generally due to the fact that people are comparing a 5" or 6" to our 7". I'd be more than happy to offer up one of our FMIC kits for testing if there was anyone with a Cobb already on their car.
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      11-12-2013, 06:04 PM   #13
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Quote:
Originally Posted by Tiago@VRSF View Post
Not yet


LOL, do it !!!!!
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      11-12-2013, 06:10 PM   #14
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Quote:
Originally Posted by Tiago@VRSF
Quote:
Originally Posted by Ragi Elias View Post
I don't think VRSF is stepped core.
Not yet

Quote:
Originally Posted by Ragi Elias View Post
I see a lot of VRSF FMIC love on the forums here. I was hoping to see if anyone made the switch from VRSF to the Cobb/Helix or vice versa.

I don't think VRSF is stepped core. Is stepped core a superior design?

I know VRSF is half the price, but cost aside, is VRSF an equal performer with Cobb/Helix.
I'd love to see a comparison myself to be honest. Every comparison I've seen with our intercooler vs a competitors has always been in our favor but it's generally due to the fact that people are comparing a 5" or 6" to our 7". I'd be more than happy to offer up one of our FMIC kits for testing if there was anyone with a Cobb already on their car.
Is a stepped core a superior design? If so, why ?
And if you guys are moving to stepped cores, ETA?
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      11-12-2013, 06:27 PM   #15
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The 7" models will remain untouched but we're going to replace the 5" with a stepped design. We're not expecting them to be ready until late Jan at the earliest along with our newest offerings.
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      11-12-2013, 06:44 PM   #16
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Quote:
Originally Posted by Tiago@VRSF View Post
The 7" models will remain untouched but we're going to replace the 5" with a stepped design. We're not expecting them to be ready until late Jan at the earliest along with our newest offerings.
I've got the mod bug again... let me know what's coming
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      11-12-2013, 06:52 PM   #17
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Quote:
Originally Posted by Tiago@VRSF View Post
The 7" models will remain untouched but we're going to replace the 5" with a stepped design. We're not expecting them to be ready until late Jan at the earliest along with our newest offerings.
Sick! Definitely gonna wait for the stepped hopefully in time for spring!
Direct bolt on to e90 lci m sport? Hopefully I can be one of the first to test this badboy out once your ready to release.
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      11-12-2013, 06:53 PM   #18
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Someone please let me know if/what is so special about a stepped core design.
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      11-12-2013, 06:54 PM   #19
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Frontal surface area is generally better than a thicker core but it's honestly about fitting as much intercooler as possible without require any modification.
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      11-12-2013, 07:00 PM   #20
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Thank you.

Now, back to the original question. Impressions of Cobb IC by owners?
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      11-12-2013, 08:10 PM   #21
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Quote:
Originally Posted by Tiago@VRSF View Post
The 7" models will remain untouched but we're going to replace the 5" with a stepped design. We're not expecting them to be ready until late Jan at the earliest along with our newest offerings.
Any change coming to the downpipes in the near future?
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      11-13-2013, 12:04 AM   #22
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Quote:
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Worth the switch? On the fence about cp-e vs Cobb. Did cobb for without trimming? Would you do it again?

Thanks
No no trimming that i know of. it will go in fine, but i decided to trim anyway just to give myself some extra room. pretty straightforward. honestly, if you are planning to run methanol, any upgraded fmic will do ok. i switched before i got my meth kit, but now that i have it, iats are always cool lol. both are good intercoolers.
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Last edited by Stucks; 11-13-2013 at 12:11 AM.
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