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BMW 3-Series (E90 E92) Forum > E90/E92/E93 Marketplace (For Sale / Trade / Wanted) > SPONSORS Classifieds/Groupbuys/Specials Area > Turbo Engine / Drivetrain / Exhaust Parts > Helix Spring FMIC Group Buy!



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      03-22-2012, 08:53 AM   #1
eric@helix
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Helix Spring FMIC Group Buy!

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      03-22-2012, 08:55 AM   #2
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Core Design

Prior to this stepped core design you had the option to either go Taller or thicker with the cores. In my design process I measured the captive areas in the front of the bumper in both depth and height and went about designing an intercooler that took up all of this area, yet still retained the all important seal to the back of the fan shroud so the radiator fan could still draw ambient air through the core. The end result is an intercooler with 56% more frontal area as well as core volume. now about the core I was not constrained to an off the shelf core in regards to ambient and internal fin count as we custom spec'd the core to this application the core in the helix FMIC is a single unit stacked up to our specifications in regards to ambient and charge row height and internal and external fin count. since our core has more volume I could increase the internal fin count to remove more temperature and still meet the targeted air flow and pressure drop for this application. as you see by the AIT data logs the intercooler works amazingly well





Another Design feature to our core is the use of half round header bars on the ambient face and in the charge side of the core. These half round bars help to direct airflow with less restriction though the core to the radiator and less pressure drop as the charge air does not have to find its direction into the core nor fight flat surfaces!



Endtank Design
All endtanks are not created equal. Air likes to flow in a smooth curved radius and as you can see the Helix FMIC has rounded endtanks that are cast. Another thing you will notice is we opted not to utilize the factory O-ring connectors even though we could have easily implemented them into our design. Our reasoning was simple; the factory connectors are THE flow restriction in the charge side as they shrink down to less than 2 inches in diameter at the inlet and outlet.






STOCK: 2-4 gear



Helix Intercooler: 2-4 gear



Independant AIT test through 2nd-4th gears-Incredible AIT control!





Independent testing and comments on the Helix FMIC:

I've been testing the Helix FMIC and it keeps IATs within a couple degrees of ambient. Pretty ridiculous. In a good way, of course. And it doesn't block too much of the radiator either. That would be my recommendation.
Shiv

I've tested 3 different aftermarket FMICs in my car and the Helix unit performed the best in terms of cooling efficiency and pressure loss. I don't see things getting much better than that to be honest.
Shiv

I will attest that this intercooler will help your cars. I have had it on since early winter/last fall and have seen little to no decrease in power with the warmer weather or after repeated hard runs that would have heatsoaked the tiny stock intercooler in no time.
Sniz

[center]
Helix FMIC Install Video:



Install:
Fits in stock location- YES
Requires NO cutting,removal and/or permanent modification- Yes on 335i, No on 135i
**On 135i about 1.5 square inches must be trimmed**
Can it be installed without removing front Bumper- YES
Utilizes factory mounting points- Yes

***Late model N54 and N55 require a custom Helix Charge Pipe to replace the drivers side lower charge pipe***

Design:
More core volume than stock- Yes 56%
More Ambient face than stock- Yes 56%
More charge rows than stock(8)- Yes 13
Bar and Plate construction- Yes
Removes restrictive stock O ring connectors- Yes
Seals to factory radiator fan shroud so air is drawn through when car is not in motion- Yes

Performance:
Helix intercooler at 13.5psi 63 degree ambient temps:
372whp +22whp
turbo outlet temperature 228 degrees F(estimated using a 63 degree ambient and 65% compressor efficiency at 13.5 psi)
AIT temp- 75 degrees F - 54 degree drop over stock
pre and post intercooler temp drop- 153 degrees F
Intercooler efficiency- 93% - 33% improvement in efficiency over stock
Core pressure drop spec is .5psi at 450hp(600cfm) airflow


DEPOSITS TO BE MADE ON OUR WEBSITE: WHEN MAKING A DEPOSIT PLEASE INCLUDE YOUR SCREEN NAME
http://www.helix13.com/3-series-bmw/engine-exhaust/#go
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      03-22-2012, 09:39 AM   #3
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And for those that don't want to wait 8-10 weeks...
We are currently running a clearance sale on our current inventory for $875... Beat the Heat and get one NOW and shipped immediately. To place an order:

Call (267) 335-4337
OR
Email @ sales@helix13.com
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      03-22-2012, 12:43 PM   #4
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what's the difference between the current stock and the new ones?
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      03-22-2012, 12:49 PM   #5
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What is total price shipped to 77004 for a 2012 335is (need custom piping)?

Thanks!
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      03-22-2012, 01:10 PM   #6
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Could you get me a price shipped to 76016 for current stock (N54)? I called, but the fella who answered said he wasn't able to answer that question and took a message.
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      03-22-2012, 01:22 PM   #7
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Quote:
Originally Posted by georgelb View Post
Could you get me a price shipped to 76016 for current stock (N54)? I called, but the fella who answered said he wasn't able to answer that question and took a message.
Guys if you call or email Helix they will get back to you with quotes and answer any questions you may have!
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      03-22-2012, 01:23 PM   #8
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Quote:
Originally Posted by triggerpuller702 View Post
what's the difference between the current stock and the new ones?
Nothing they are the same FMIC, the GB price reflects the wait time and a larger manufacturing run.
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      03-22-2012, 01:32 PM   #9
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Why is the 1M unit priced $100 higher? Because race car?
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      03-22-2012, 01:51 PM   #10
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Quote:
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Why is the 1M unit priced $100 higher? Because race car?
N55 and 1m require a custom charge pipe!
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      03-24-2012, 04:35 PM   #11
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Deposit made! Is there a set cut-off date for this yet?
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      03-25-2012, 12:21 PM   #12
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Quote:
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Deposit made! Is there a set cut-off date for this yet?
We usually run the GB for 4-6 weeks...if u don't want to wait we still have VERY FEW fmics in stock ready for immediate shipping
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      03-25-2012, 01:12 PM   #13
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Quote:
Originally Posted by TTurboBullett View Post
We usually run the GB for 4-6 weeks...if u don't want to wait we still have VERY FEW fmics in stock ready for immediate shipping
Thanks for the response. I'm currently traveling outside the US so the wait isn't an issue for me. I'm just trying to get an idea of when I may expect it to start shipping.
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      03-26-2012, 07:25 AM   #14
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I'll send PM shipping quotes when I get to the office...
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      03-29-2012, 04:37 PM   #15
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We're going to keep this one shorter so people can get their intercoolers in before it gets too warm. I think I have responded to all PMs. Hit me up if I missed you.
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      03-29-2012, 05:40 PM   #16
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Quote:
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I'll send PM shipping quotes when I get to the office...
Can you pm the price of a complete kit for a 2012 335is to 77004?
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      03-30-2012, 10:43 AM   #17
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Quote:
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Can you pm the price of a complete kit for a 2012 335is to 77004?
PMs sent.
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      03-30-2012, 01:32 PM   #18
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Quick question on cutting needed, should I assume the 1///M falls in the 135i category and cutting/trimming will be needed?

Any chance you can offer this in anodized black? TIA
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      03-31-2012, 12:33 AM   #19
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Please PM a price of a complete kit to 85340 for 335i (e90).

Thanks
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      03-31-2012, 12:13 PM   #20
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Are you taking 535i intercooler deposits too?
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      04-02-2012, 10:50 AM   #21
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Quote:
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Quick question on cutting needed, should I assume the 1///M falls in the 135i category and cutting/trimming will be needed?

Any chance you can offer this in anodized black? TIA
That assumption is correct: the trimming is VERY minimal for the 135s/1Ms. less than a square inch around the ambient temp sensor bracket.

We have never anodized a cooler, but we have had them coated with a thermal dispersant, which is supposed to increase heat transfer. It's baked on like powder coating. Somebody once tested a stock MINI Cooper intercooler vs. a coated one and saw a slight increase in cooling--nothing dramatic, but it did drop IATs a little. Paint and anodizing would presumably reduce heat transfer a little bit, although we have not tested it. We don't currently offer that service, but if there was enough interest, we could facilitate a run of coated coolers.
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      04-02-2012, 10:57 AM   #22
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is it safe to assume the FMIC fitment will be the same in my xi as the i's?
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