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BMW 3-Series (E90 E92) Forum
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Helix Spring FMIC Group Buy!
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| 03-22-2012, 08:55 AM | #2 |
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BimmerPost Supporting Vendor
 
Drives: 01 M Coupe, 08 135i, '12 328i Join Date: Jul 2007
Location: Philadelphia
Posts: 719
iTrader: (0)
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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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BimmerPost Supporting Vendor
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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, 01:10 PM | #6 |
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Second Lieutenant
 
Drives: E92 335i Join Date: Apr 2010
Location: DFW, TX
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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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BimmerPost Supporting Vendor
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| 03-22-2012, 01:23 PM | #8 | |
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BimmerPost Supporting Vendor
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| 03-22-2012, 01:32 PM | #9 |
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Brigadier General
 
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Why is the 1M unit priced $100 higher? Because race car?
__________________
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| 03-25-2012, 12:21 PM | #12 | |
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BimmerPost Supporting Vendor
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| 03-25-2012, 01:12 PM | #13 | |
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Captain
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| 03-29-2012, 04:37 PM | #15 |
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BimmerPost Supporting Vendor
Drives: 01 M Coupe, 08 135i, '12 328i Join Date: Jul 2007
Location: Philadelphia
Posts: 719
iTrader: (0)
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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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Often Imitated, Never Duplicated
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| 03-30-2012, 01:32 PM | #18 |
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Brigadier General
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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
__________________
2011 BMW E82 1///M: AW, ZPP, ZCV, HK, Sirius, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof Wrap, 10mm H&Rs, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Exclusive Euro Recaro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Stoptech SS lines, Tint, ADR V1, Lidatek, Lamin-X, Rotiform SNA 19x10" wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK |
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| 04-02-2012, 10:50 AM | #21 | |
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BimmerPost Supporting Vendor
Drives: 01 M Coupe, 08 135i, '12 328i Join Date: Jul 2007
Location: Philadelphia
Posts: 719
iTrader: (0)
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Quote:
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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