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      06-07-2011, 03:36 PM   #1
Alex@Helix
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Helix | NEW Summer Intercooler Group Buy: N55 + N54



Helix Motorsport Stepped Core Intercooler Group Buy
For the new N55 and N54


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


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



N54 FMIC Kit:
N54 Retail Price: $969- Group Buy Price 799$
Intercooler, 2 silicone ferrules, 2 washers, 4 Turbo seal clamps


*IMPORTANT* N54's After 04/09 will need the Helix Charge Pipe

N55 FMIC Kit:
N55 Retail Price: $1199- Group Buy Price- $925
Intercooler, Helix Charge Pipe, 2 silicone ferrules, 2 washers and 5 Turbo seal clamps


Group Buy Pricing:
N54/N55
$799/ $925

CUT OFF DATE: TBA

Wait time is 8-10 weeks after cut off date. Prices do not include shipping. A 75$ deposit is needed to put your name on the list. If you are interested in one of our intercoolers and do not want to wait we have many in stock at normal pricing.

GO here to put down your deposit: Please include your screen name in "additional comments".

http://www.helix13.com/3-series-bmw/engine-exhaust/#go





Please PM/call me with any questions or to put in your deposit.



1. Sikh335
2. nwn54
3. Lamboworld
4. zzster929
5. hollowpoints
6. Jackson29
7. lulu0000ng7184
8. christopherkriens
9. tHegeRm
10. Bullet
11. jdbretz
12. cirusgutsis
13. AeroWillis
14. NorthwestN54
15. MAX
16. RobertBenson30
17. NoelPolar
18. Remington109
19. Gotham23
20. Acetech
21.
___________________________________


CUT OFF DATE: FRIDAY JULY 8th...
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      06-07-2011, 03:42 PM   #2
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*** This is a new group buy start on June 7th for those of you who are interested in buying an intercooler for the hot summer months and/or missed out on our last GB ***


For those of you who do not want to wait the 8-10 weeks we have Intercoolers in stock for both n54 and N55. Same day shipping if order is in before 3PM EST
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      06-08-2011, 03:07 AM   #3
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pmed!
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      06-08-2011, 03:41 AM   #4
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Does this fmic fit with radar cruise control? Also does it suite right and drive? Thanks
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      06-08-2011, 06:11 AM   #5
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Quote:
Originally Posted by Noelpolar View Post
Does this fmic fit with radar cruise control? Also does it suite right and drive? Thanks
would like to know this too... thanks
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      06-08-2011, 09:38 AM   #6
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It does fit on right hand drive cars and we have not installed one of our intercoolers with radar cruise control at our shop but I assume that out of the thousands of intercoolers we have sold, a few would have radar cruise and if it didnt fit we would have heard about it. Either way I will look into it more.
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      06-08-2011, 12:02 PM   #7
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      06-08-2011, 12:11 PM   #8
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      06-08-2011, 04:23 PM   #9
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If you need the charge pipe, is it the whole pipe up to the throttle body? Can I just buy a charge pipe from the dealer from an older N54 production time?
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      06-08-2011, 07:00 PM   #10
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Quote:
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If you need the charge pipe, is it the whole pipe up to the throttle body? Can I just buy a charge pipe from the dealer from an older N54 production time?
No it's just the pipe from the intercooler to the rubber coupler near the headlight on the driver side. It's your option which route you would want to take!
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      06-10-2011, 12:50 AM   #11
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aw man I wish I could get one for gb price shipped out today...
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      06-10-2011, 06:47 AM   #12
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      06-10-2011, 08:38 AM   #13
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Helix IC is definitely worth every penny!!
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      06-10-2011, 04:21 PM   #14
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Price shipped next week to 40353.

Thanks.
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      06-10-2011, 04:23 PM   #15
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Can you get them in black?
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      06-11-2011, 05:32 PM   #16
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PM shipped 93552
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      06-11-2011, 09:50 PM   #17
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Will that fit '08 xi?
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      06-14-2011, 09:14 AM   #18
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Quote:
Originally Posted by TotalBlackout View Post
Can you get them in black?
We do not offer them in black but you are welcome to black them out after you receive them.
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      06-14-2011, 03:13 PM   #19
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I really wanted to jump on this groupbuy but I honestly can't wait approximately 2 months for it, so I ordered one earlier today. I can't wait for it and might do several dyno pulls comparing the stock intercooler with the Helix.
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      06-15-2011, 10:19 AM   #20
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Alex, there's no more group buy for this?
'07 E92 Mfg 02-2009
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      06-15-2011, 10:56 AM   #21
Alex@Helix
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Quote:
Originally Posted by punky8d View Post
Alex, there's no more group buy for this?
'07 E92 Mfg 02-2009


yes there is. please read the group buy details, especially the last few sentences of the info in the original post.
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      06-15-2011, 11:10 AM   #22
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you can go to our website now to place your deposit. Please scroll down to our intercooler where you will find the option for the 75$ deposit. Please add your e90 screen name to the additional comments part of the order form

http://www.helix13.com/3-series-bmw/engine-exhaust/#go
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