 SDS Installation into the 74 2.0 (SDSEFI), Documenting the installation steps into existing ECU, etc. |
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| Larouex |
 May 11 2010, 11:18 PM
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#1
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Larouex  Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest  |
Hello,
I wanted to document my SDS install as I am doing a few custom steps I haven't seen anyone post yet. I ordered the EFI system with the 02 System (which requires welding in the bung and sensor, more on that later). I already have the Crane Xr700 and the Crane Coil, so my ignition is solid and works well and decided to skip the ignition and crankfire for now. My first goal was to fit the SDS ECU into the existing 914 DJet ECU as I had a couple extra boxes. I am pleased with the results, although I have to mount the O2 sensor and tach boost box, so far I am not sure how I want those items to no be conspicuous in the engine bay. I will post more as I get the install further along, but here are the pics of the box install and fitment... Full image set @ Flickr 914 SDS into ECU Photo Set (IMG:http://www.914world.com/bbs2/uploads_offsite/farm2.static.flickr.com-9339-1273641496.1.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/farm2.static.flickr.com-9339-1273641496.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/farm2.static.flickr.com-9339-1273641496.3.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/farm2.static.flickr.com-9339-1273641496.4.jpg) |
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Replies(1 - 18)
| ottox914 |
May 12 2010, 06:32 AM
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#2
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest  |
Does the lid not quite fit down on the case? I was thinking of doing that for my SDS install, but used the area where the factory box went to add some really big relays for the SDS system and fuel pump. If you snoop around my sig the link to the project is there.
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| Jake Raby |
May 12 2010, 07:12 AM
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#3
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Be careful when sealing the SDS in a container.. I have had issues with that in the past as the ECU ran at a temperature that was elevated. I've always surface mounted the ECUs since that occurrence with no issues.
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| Larouex |
May 12 2010, 08:46 AM
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#4
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Larouex Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest |
QUOTE(Jake Raby @ May 12 2010, 06:12 AM)  Be careful when sealing the SDS in a container.. I have had issues with that in the past as the ECU ran at a temperature that was elevated. I've always surface mounted the ECUs since that occurrence with no issues. Hmm, good information and you would know! In your opinion, the SDS ECU needs air flow for cooling of the internals? |
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| Larouex |
May 12 2010, 08:49 AM
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#5
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Larouex Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest |
QUOTE(ottox914 @ May 12 2010, 05:32 AM) Does the lid not quite fit down on the case? I was thinking of doing that for my SDS install, but used the area where the factory box went to add some really big relays for the SDS system and fuel pump. If you snoop around my sig the link to the project is there. Nice thread, thanks. I am going to read it in detail this afternoon. |
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| Jake Raby |
May 12 2010, 09:03 AM
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#6
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
When the ECU runs at elevated temps, the engine does weird things... Things I never have experienced when the ECU was mounted in an exposed area.
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| charliew |
May 12 2010, 09:04 AM
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#7
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
If it's got drivers in it it will fail in a enclosed box. Why does no one want to mount the ecu's in the cab? The fiero uses a compartment inbetween the seat backs to house the ecu.
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| ottox914 |
May 12 2010, 09:31 AM
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#8
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest |
QUOTE(Jake Raby @ May 12 2010, 05:12 AM) Be careful when sealing the SDS in a container.. I have had issues with that in the past as the ECU ran at a temperature that was elevated. I've always surface mounted the ECUs since that occurrence with no issues. Exactly the reason I mounted mine in the rear trunk. I like the idea of the stealth install, but was not sure about the airflow issues that may have occurred. |
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| Mark Henry |
May 12 2010, 11:02 AM
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#9
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I did the in the can trick PITA and I wouldn't do it again. I just cut a large hole in th bottom never had a moisture issue, but I did have a good engine seal.
I tried to mount it the way you have it at first, but I felt that the bend in the wires was too extreme and it has a good chance of fatigue and therefore failure. |
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| Mark Henry |
May 12 2010, 11:36 AM
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#10
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
BTW you don't want to mount your rich/lean mixture knob like that, because that's not how you use it. It needs to be mounted beside your pendant.
As you drive you turn the mixture knob till you have a good AFR then you look at the percentage and add (or subtract) that to your fuel value, then move to the next RPM range and repeat till you have done all the fuel values. It seems odd at first, but you catch on very quick. A stock engine in good condition I can have good tune this way within minutes. Look for the thread with my ashtray mount, it's the best setup as you'll have a heads up display. Easy to tune as you drive this way. |
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| Larouex |
May 12 2010, 11:41 AM
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#11
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Larouex Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest |
QUOTE(Mark Henry @ May 12 2010, 10:36 AM) BTW you don't want to mount your rich/lean mixture knob like that, because that's not how you use it. It needs to be mounted beside your pendant. As you drive you turn the mixture knob till you have a good AFR then you look at the percentage and add (or subtract) that to your fuel value, then move to the next RPM range and repeat till you have done all the fuel values. It seems odd at first, but you catch on very quick. A stock engine in good condition I can have good tune this way within minutes. Look for the thread with my ashtray mount, it's the best setup as you'll have a heads up display. Easy to tune as you drive this way. Thanks Mark, I understand that now. I will move that out of the box. |
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| charliew |
May 12 2010, 12:04 PM
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#12
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
You actually did a nice neat job though.
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| Larouex |
May 12 2010, 12:06 PM
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#13
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Larouex Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest |
After all of this excellent feedback, I think I might just mount the box as is in the cabin <g/> No rain, no heat and I can get to the lean/rich button while driving. It still is a clean install.
Larouex |
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| Mark Henry |
May 12 2010, 12:38 PM
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#14
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Larouex @ May 12 2010, 02:06 PM) After all of this excellent feedback, I think I might just mount the box as is in the cabin <g/> No rain, no heat and I can get to the lean/rich button while driving. It still is a clean install. Larouex Yep, whip out the hole saw and cut the hole to get that big fuching connector through into the cab. Don't think...just do it. |
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| ConeDodger |
May 12 2010, 12:47 PM
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#15
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Apex killer! Group: Members Posts: 23,613 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California 
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Another thing you might consider, though it is an extra expense - Jeff Bowlsby (Bowlsby) and Jeff Keyser (MightyOhm) can make you a custom SDS harness that is much nicer than the one provided by SDS. That is the route I am going and SDS is giving me a $275 credit for harness delete. The Bowlsby MightyOhm harness is shielded for EMI, weatherproof and can have a connector that allows you to unplug your engine for engine drops and leave it wired so reinstallation is just - put the engine back in and plug it back into it's fuel injection harness. Really a neat solution. Perhaps one of them will chime in but it is something you should consider...
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| Jake Raby |
May 12 2010, 12:48 PM
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#16
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
In my 912E I installed it just behind the Driver's jump seat mounted to the bulkhead.
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| Larouex |
May 12 2010, 01:26 PM
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#17
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Larouex Group: Members Posts: 144 Joined: 22-July 08 From: Larouex@gmail.com Member No.: 9,339 Region Association: Pacific Northwest |
QUOTE(ConeDodger @ May 12 2010, 11:47 AM) Another thing you might consider, though it is an extra expense - Jeff Bowlsby (Bowlsby) and Jeff Keyser (MightyOhm) can make you a custom SDS harness that is much nicer than the one provided by SDS. That is the route I am going and SDS is giving me a $275 credit for harness delete. The Bowlsby MightyOhm harness is shielded for EMI, weatherproof and can have a connector that allows you to unplug your engine for engine drops and leave it wired so reinstallation is just - put the engine back in and plug it back into it's fuel injection harness. Really a neat solution. Perhaps one of them will chime in but it is something you should consider... That would be great, the harness is a sore spot for me and I already did the FI portion of the harness. I have pinged Jeff on his site before and did not get a response, what is the best way to get one of these ordered? |
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| ConeDodger |
May 12 2010, 01:34 PM
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#18
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Apex killer! Group: Members Posts: 23,613 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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The quickest way for you to get a hold of Jeff Bowlsby is to PM him through this site.
Search his screen name (Bowlsby) and just send him a note. Tell him I got you interested in his SDS harness and he can send you a picture. You have to be able to tell him your components and where you intend to mount things. QUOTE(Larouex @ May 12 2010, 11:26 AM) QUOTE(ConeDodger @ May 12 2010, 11:47 AM) Another thing you might consider, though it is an extra expense - Jeff Bowlsby (Bowlsby) and Jeff Keyser (MightyOhm) can make you a custom SDS harness that is much nicer than the one provided by SDS. That is the route I am going and SDS is giving me a $275 credit for harness delete. The Bowlsby MightyOhm harness is shielded for EMI, weatherproof and can have a connector that allows you to unplug your engine for engine drops and leave it wired so reinstallation is just - put the engine back in and plug it back into it's fuel injection harness. Really a neat solution. Perhaps one of them will chime in but it is something you should consider... That would be great, the harness is a sore spot for me and I already did the FI portion of the harness. I have pinged Jeff on his site before and did not get a response, what is the best way to get one of these ordered? |
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| Joe Owensby |
May 12 2010, 07:29 PM
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#19
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JoeO Group: Members Posts: 527 Joined: 7-January 06 From: Spartanburg, SC Member No.: 5,385 Region Association: South East States |
I put mine inside the passenger compartment. There should be details in a link in my signature. I bacisally hollowed out the foam in the backpad to make room for the controller. Keep on posting. JoeO
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