Anyone with EFI, ECM mounting? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

drummin89 · 08-25-2010, 07:44 PM

Question for those with electronic fuel injection in 47-55 trucks. Where did you mount the ECM?

I adapted a GM TBI system to the 54 235 inline 6 in my 52 and currently have the ECM mounted up high on the passenger side kick panel but don't like how its visible, its an eye sore. Planning to relocate it under the dash up high on the firewall so its out of sight.

Was just wondering where others have mounted the computer in their trucks.

Thanks!

bmacdona · 08-25-2010, 08:30 PM

I mounted mine on a 1/4 sheet of baltic birch plywood, approx 5x12 and fastened it to the firewall using a piano hinge....just have a #10 sheet metal screw into the bottom of the dash. Painted the ply black on the underside and edges, used some 4" velcro to attach the ecm to the ply. Swings up behind the speaker grille and pretty difficult to see unless your crawling around on the floor

Atomsplitter · 08-25-2010, 11:51 PM

I made a bracket and mounted it on the inner fender. In the picture you can see the bracket on the top of the ECM to the master cylinder to brace it for vibration.

BlueJeep · 08-26-2010, 10:24 PM

Mine's currently zip tied to the bottom of the cowl vent...for now. It'll get mounted up there permanently once I know where the vintage air will go.

**WIDESIDE72** · 09-18-2010, 06:58 PM

[QUOTE=Atomsplitter;4157853]I made a bracket and mounted it on the inner fender. In the picture you can see the bracket on the top of the ECM to the master cylinder to brace it for vibration.[QUOTE]

I fianlly found someone who swapped an LT1 into their AD! I am doing a 55 1st series onto an 85 S10 2wd with 4x4 rear axle, donor LT1/ 4L60E from a 1994 Caprice 9C1.

Any pointers?

08-25-2010, 08:30 PM	#2
bmacdona Registered User Join Date: Dec 2009 Location: Olympia, WA Posts: 28	Re: Anyone with EFI, ECM mounting? I mounted mine on a 1/4 sheet of baltic birch plywood, approx 5x12 and fastened it to the firewall using a piano hinge....just have a #10 sheet metal screw into the bottom of the dash. Painted the ply black on the underside and edges, used some 4" velcro to attach the ecm to the ply. Swings up behind the speaker grille and pretty difficult to see unless your crawling around on the floor

08-25-2010, 11:51 PM	#3
Atomsplitter Registered User Join Date: Mar 2006 Location: Ontario Posts: 514	Re: Anyone with EFI, ECM mounting? I made a bracket and mounted it on the inner fender. In the picture you can see the bracket on the top of the ECM to the master cylinder to brace it for vibration.

08-26-2010, 10:24 PM	#4
BlueJeep Registered User Join Date: Mar 2008 Location: Waukee, Iowa Posts: 1,608	Re: Anyone with EFI, ECM mounting? Mine's currently zip tied to the bottom of the cowl vent...for now. It'll get mounted up there permanently once I know where the vintage air will go. __________________ build threads: 86 Suburban 88 Jeep 6.0 swap 49 Chevy truck 54 Chevy wagon 86 Suburban lowered 4/6 54 Chevy wagon 49 Chevy/s10 mix 88 Jeep Wrangler rockcrawler

09-18-2010, 06:58 PM	#5
WIDESIDE72 Senior Member Join Date: Aug 2008 Location: Cedar Park, Texas Posts: 7,494	Re: Anyone with EFI, ECM mounting? [QUOTE=Atomsplitter;4157853]I made a bracket and mounted it on the inner fender. In the picture you can see the bracket on the top of the ECM to the master cylinder to brace it for vibration.[QUOTE] I fianlly found someone who swapped an LT1 into their AD! I am doing a 55 1st series onto an 85 S10 2wd with 4x4 rear axle, donor LT1/ 4L60E from a 1994 Caprice 9C1. Any pointers? Last edited by WIDESIDE72; 09-18-2010 at 06:58 PM.

08-25-2010, 07:44 PM	#1
drummin89 Registered User Join Date: Jul 2007 Location: Wapwallopen Pa Posts: 412	Anyone with EFI, ECM mounting? Question for those with electronic fuel injection in 47-55 trucks. Where did you mount the ECM? I adapted a GM TBI system to the 54 235 inline 6 in my 52 and currently have the ECM mounted up high on the passenger side kick panel but don't like how its visible, its an eye sore. Planning to relocate it under the dash up high on the firewall so its out of sight. Was just wondering where others have mounted the computer in their trucks. Thanks! __________________ Chris 52 Chevy 3600 (3/4 ton) 5 window pickup -54 235 Inline 6 w/ Fuel Injection Conversion -Clifford 2/4bbl Aluminum Intake and Headers -1/2 ton front axle swap w/ 5lug disc brake kit -CPP Power Steering Kit Various pictures of my 52 Chevy 3600



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