E90Post
 


Coby Wheel
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cooling the EKP



Reply
 
Thread Tools Search this Thread
      03-23-2023, 01:21 PM   #45
Serf27
Brigadier General
Serf27's Avatar
2892
Rep
4,333
Posts

Drives: 335i
Join Date: Apr 2018
Location: Sitting in a BMW.

iTrader: (-1)

Quote:
Originally Posted by NoGuru View Post
There are a couple of EKP fixes on the market now that look promising if you do a little searching.
I’ll probably add a fan and some heat sinks as seen here.
https://www.e90post.com/forums/showthread.php?t=1737938
Appreciate 0
      04-06-2023, 10:02 AM   #46
iqraceworks
Brigadier General
iqraceworks's Avatar
2099
Rep
3,811
Posts

Drives: 2007 335i
Join Date: Aug 2019
Location: Missouri

iTrader: (0)

I wish I could remember company.....but someone online is making new updated internals for the EKP. Just use the factory EKP cover but replace all the guys. Supposed to have better board components that can handle the extra load and heat. Speedsty Motorsports maybe??
Appreciate 0
      04-06-2023, 11:54 AM   #47
Serf27
Brigadier General
Serf27's Avatar
2892
Rep
4,333
Posts

Drives: 335i
Join Date: Apr 2018
Location: Sitting in a BMW.

iTrader: (-1)

I saw someone on the n54 Facebook group post something similar to what you’re talking about, maybe it was that company.
A tech buddy said the chips they were using looked cheap, but I’m not sure about the quality.
Appreciate 0
      05-12-2023, 03:27 PM   #48
kylerwinters
New Member
10
Rep
24
Posts

Drives: E92 335xi
Join Date: Jan 2017
Location: USA

iTrader: (0)

There is nothing low quality to the Speedsty EKPM Upgrade board. I have spent a lot of time developing the hardware and firmware on the upgrade board. Yes, we are using a low-cost AVR-based chip; However, that was only used as it is a readily available chip. The relays, PCB, and MCU power supply components were overdesigned with higher limits than what is remotely needed. If anyone experiences any issues, I will swap it out at no charge. I stand behind my products, unlike some vendors. We have seen zero failures with 50+ units shipped.

We are working on a custom CNC enclosure to ship these boards out as completed modules.

If you have any questions, shoot.

Appreciate 4
      12-23-2023, 12:24 AM   #49
titan.n54
Private
3
Rep
76
Posts

Drives: BMW 335i
Join Date: Mar 2021
Location: Lima, Perú

iTrader: (0)

Garage List
2007 BMW 335i  [0.00]
Quote:
Originally Posted by kylerwinters View Post
There is nothing low quality to the Speedsty EKPM Upgrade board. I have spent a lot of time developing the hardware and firmware on the upgrade board. Yes, we are using a low-cost AVR-based chip; However, that was only used as it is a readily available chip. The relays, PCB, and MCU power supply components were overdesigned with higher limits than what is remotely needed. If anyone experiences any issues, I will swap it out at no charge. I stand behind my products, unlike some vendors. We have seen zero failures with 50+ units shipped.

We are working on a custom CNC enclosure to ship these boards out as completed modules.

If you have any questions, shoot.


Active cooling/fan is needed in this EKPM?
Appreciate 0
      12-13-2024, 01:00 PM   #50
konstat
Private First Class
konstat's Avatar
44
Rep
112
Posts

Drives: 2008 135i M Sport
Join Date: Oct 2024
Location: Massachusetts

iTrader: (0)

Reviving an old thread here but I came up with a passively cooled heatsink design to cool the EKPM. I'm not sure if anyone has run into reliability issues with their actively cooled EKPM solutions (fan dying out) but this design eliminates the need for a fan since it cools the EKPM components by Natural Convection (as opposed to Forced Convection with a fan). There is a thermal interface material (not pictured) between the heatsink and EKPM components.

This solution is approximately 5x better than the OEM cooling solution (cast aluminum base) and about 2x better than the active cooling solutions on the market.

This heatsink uses 3D printed clips to attach onto the existing mounting tabs on the EKPM base. The clips also serve as the EKPM enclosure.

If people are interested in a passive cooling solution for their EKPM I can purchase more of these heatsinks and thermal interface material.
Attached Images
    
Appreciate 2
eastsidaz218.00
oVeRdOsE.3596.50
      12-15-2024, 12:35 AM   #51
eastsidaz
Lieutenant
eastsidaz's Avatar
218
Rep
550
Posts

Drives: E92 335i
Join Date: Aug 2018
Location: Straya

iTrader: (0)

Quote:
Originally Posted by konstat View Post
Reviving an old thread here but I came up with a passively cooled heatsink design to cool the EKPM. I'm not sure if anyone has run into reliability issues with their actively cooled EKPM solutions (fan dying out) but this design eliminates the need for a fan since it cools the EKPM components by Natural Convection (as opposed to Forced Convection with a fan). There is a thermal interface material (not pictured) between the heatsink and EKPM components.

This solution is approximately 5x better than the OEM cooling solution (cast aluminum base) and about 2x better than the active cooling solutions on the market.

This heatsink uses 3D printed clips to attach onto the existing mounting tabs on the EKPM base. The clips also serve as the EKPM enclosure.

If people are interested in a passive cooling solution for their EKPM I can purchase more of these heatsinks and thermal interface material.

Props mate! This is some nice engineering work.
Appreciate 0
      12-15-2024, 12:21 PM   #52
konstat
Private First Class
konstat's Avatar
44
Rep
112
Posts

Drives: 2008 135i M Sport
Join Date: Oct 2024
Location: Massachusetts

iTrader: (0)

Quote:
Originally Posted by eastsidaz View Post
Props mate! This is some nice engineering work.
Thanks man I appreciate it . Also helps that I worked in the electronics cooling industry as a thermal engineer for part of my career
Appreciate 0
      12-15-2024, 01:34 PM   #53
oVeRdOsE.
Colonel
oVeRdOsE.'s Avatar
3597
Rep
2,071
Posts

Drives: F25 E91 Audi Avnt E90 Cayenne
Join Date: May 2018
Location: mtl

iTrader: (0)

very cool work !

the most reliable solution for sure.


Ive simply use a fan and heatsinks from an old GPU, solder the wires directly inside the EKP and it works super fine. 0$ mod.
Appreciate 0
      12-15-2024, 06:22 PM   #54
konstat
Private First Class
konstat's Avatar
44
Rep
112
Posts

Drives: 2008 135i M Sport
Join Date: Oct 2024
Location: Massachusetts

iTrader: (0)

Quote:
Originally Posted by oVeRdOsE. View Post
very cool work !

the most reliable solution for sure.


Ive simply use a fan and heatsinks from an old GPU, solder the wires directly inside the EKP and it works super fine. 0$ mod.
Thanks man. I like how you used existing components, where’d you solder for power?
Appreciate 0
      12-15-2024, 08:33 PM   #55
Richm240xi
Private First Class
8
Rep
116
Posts

Drives: 2017 m240xi
Join Date: May 2021
Location: NYC

iTrader: (1)

Hey I love the passive setup you came up with. How much were you selling these for? And does the rear seat bolster still fit over the new bigger base?
Appreciate 0
      12-16-2024, 11:15 AM   #56
oVeRdOsE.
Colonel
oVeRdOsE.'s Avatar
3597
Rep
2,071
Posts

Drives: F25 E91 Audi Avnt E90 Cayenne
Join Date: May 2018
Location: mtl

iTrader: (0)

Quote:
Originally Posted by konstat View Post
Thanks man. I like how you used existing components, where’d you solder for power?
on the terminal inside . pump 12v+

ive also added thermal paste on the EKP back to the car bracket.



Appreciate 0
      12-16-2024, 01:03 PM   #57
konstat
Private First Class
konstat's Avatar
44
Rep
112
Posts

Drives: 2008 135i M Sport
Join Date: Oct 2024
Location: Massachusetts

iTrader: (0)

Quote:
Originally Posted by Richm240xi View Post
Hey I love the passive setup you came up with. How much were you selling these for? And does the rear seat bolster still fit over the new bigger base?
I could sell them for $159 shipped, assuming you’re in the US. Lead time is about 3 weeks to your door.

The rear seat bolster fits over the new EKPM assembly. The heatsink assembly height is only 0.1” taller than the oem plastic housing and there is plenty of clearance behind there for the extended length. I have it installed in my e82.

PM for more info if you’re interested
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:20 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST