Notices
Series I Trouble Shooting This is the place to learn more about or discuss any issues you're having with your RX-8

Adaptronic ecu cooling problems

Thread Tools
 
Rate Thread
 
Old May 10, 2022 | 03:32 PM
  #1  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Adaptronic ecu cooling problems

My Adaptronic ecu over heats in hot temps.
Restarts are no problem but dash is lite up and no power steering.
Apparently the stock cooling set up is not working for me.
I ordered another ecu cover that I will swiss cheese or install a computer fan.
Looking for some tips. Keeping the ecu enclosure weatherproof is part of the challenge.
Right now I am planning on using the modified cover for non wet events and using the stock cover for the rain.
.
Reply
Old May 10, 2022 | 03:49 PM
  #2  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,830
Likes: 1,775
From: Y-cat-o NZ
Maybe take a leaf out of Mazda's book and try emulate what they did for ECU cooling ...... It's quite elaborate and it works !
Reply
Old May 10, 2022 | 04:28 PM
  #3  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Unfortunately the stock ecu cooling plate was sacrificed for the install.
The added internal wide band controller board probably does not help with the internal load.
I see a lot of peps running without the cover so I know that I am not the only one with this problem
Reply
Old May 10, 2022 | 04:42 PM
  #4  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,830
Likes: 1,775
From: Y-cat-o NZ
OK but the stock ecu utilises the rad fan low pressure zone to suck air through the enclosure plus has a pickup in the air stream at front ..... does yours do this ?

If not........... maybe set that up but with auxiliary fan assist
Reply
Old May 11, 2022 | 07:44 AM
  #5  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Brettus, like I said the ecu cooling plate that attaches to the supply and exhaust tubes had to be modified so the stock cooling set up does not adequately cool my ecu enclosure.
A fan assist is the direction I am going.
Just looking for input from peps that have gone down this road.

Reply
Old May 11, 2022 | 04:30 PM
  #6  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,720
Likes: 344
From: Smallville
Just be careful that you don't set it up so that if its wet out that it pulls air/water into the enclosure.
I used a computer fan and it worked well... but solved the problem by putting it in where the passenger airbag sits.... need a custom harness but tons of room under there
Reply
Old May 12, 2022 | 09:18 AM
  #7  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Thanks dannobre.
I have a vented hood so any rain would find its way to the modified ecu cover very quicky.
Right now I am thinking that a swiss cheesed cover would be as effective as a cover mounted computer fan.
Both have the draw back of not being weatherproof.
Another approach would be using an inline fan and splicing it into the stock vent tube.
The enclosure temps have got to be over 120 degrees F for the ecu to over heat.
Pretty much a sealed box.


Reply
Old May 19, 2022 | 06:47 PM
  #8  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
it just needs a small fan feeding into it from the enclosed area in front of the radiator
.
Reply
Old May 19, 2022 | 07:05 PM
  #9  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
only $70 plus some 2.5” silicone flex hose and rigging it into the box






https://www.demon-tweeks.com/us/demo...er-fan-tsdilb/

.
Reply
Old May 24, 2022 | 02:47 PM
  #10  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Thanks Team.
An in-line fan was the other approach that I mentioned in my post.
Not sure if the link you sent me is just a propeller fan with square to round adaptors.
I was considering using a centrifugal style fan as it can move air against a resistance.
Prop fans are great for open air applications and not ducted.
I was really looking for a solution that could be incorporated in the cover.
Just an operable louver might do the trick.
Trying to avoid swapping covers if it rains.
Reply
Old May 25, 2022 | 09:23 PM
  #11  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
No, the link matches the photo

you can incorporate into the original box inlet duct and even likely divert part of it elsewhere where it may also be beneficial

what you propose in the box cover is going to greatly increase the chance of water etc. getting in there.
Reply
Old Jun 14, 2022 | 01:15 PM
  #12  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Thanks Team. You are correct I would be foolish to compromise the waterproof integrity of the ecu enclosure.

Right now I have bigger problems with my Adaptronic ecu.
Apparently the output driver board may be fried.
I was chasing the SSV valve lack of actuation problem for months.
Replace the solenoid with no luck. It took three different dyno sessions and multiple track days to figure it out.
Using Eugene I invert the valve and then checked the voltage/amp draw.
The solenoid had 12v with no change in current when inverted.
Hoping Adaptronic.au can help me out.
I got a computer generated service ticket number from tech and that's it.
It has only been just over a week but I got a track event in a couple weeks.
Any suggestions on contacting Adaptronics?
I did try FB.



Reply
Old Jun 14, 2022 | 01:51 PM
  #13  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,830
Likes: 1,775
From: Y-cat-o NZ
There is no real need to have the SSV functioning on a track car. Just wire it open. Idle will be a little funky but other than that you are rarely in the rpm range where the ssv should be closed anyway so wont notice any difference.
Reply
Old Jun 15, 2022 | 07:12 AM
  #14  
darnellm's Avatar
Thread Starter
Registered
iTrader: (1)
 
Joined: Dec 2005
Posts: 394
Likes: 2
From: Baltimore, MD
Brettus, Not sure if I agree with you. I guess it comes down to the track.
Keeping it above 7k rpm on some of the tight tracks that are in my area is almost impossible.
The attached torque curve says it all.
No output drivers also impacts the VDI.


Reply
Old Jun 15, 2022 | 12:12 PM
  #15  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
SSV kicks in around 4000 rpm

worst case you can work around it with a CAN add-on output device, but again you still have warranty support on the ECU for 12 months

I sort of figured it was the end when Haltech was bought out a month or two ago. I have three new ones on the shelf.
.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Footman
Series I Trouble Shooting
10
Nov 10, 2019 02:26 PM
pieter3d
Series I Aftermarket Performance Modifications
3
Aug 9, 2006 02:53 AM
tuj
Series I Tech Garage
8
Apr 7, 2005 12:51 AM
r0tor
Mazmart
15
Nov 29, 2004 08:27 AM
punishr
Series I Aftermarket Performance Modifications
16
Jul 7, 2004 03:11 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 04:01 AM.