LS with Fast Ez-efi? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jwalk · 04-17-2011, 11:47 PM

As stated looking to see if anyone has done this. I was going to go with a carb to stick with the old look, now I'm thinking about Ez-efi. Wasn't for sure if it's compatible with the edelbrock ignition setup that comes with their intakes.

Thanks in advance!
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85burb · 04-18-2011, 07:59 PM

Not sure about the edelbork one but my msd 6010 will work with it i am told. My ez efi master kit should be here on wendsday to put on my carbed 6.0. It is the one in my sig. A few people on ls1tech have it. Not many of them run yet do to still building cars. Got mine from summit cause they price matched atlanticspeeds price.

jwalk · 04-19-2011, 09:45 PM

That's sweet! Let me know how it goes and if you run into any problems?

Any one else?
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85burb · 04-19-2011, 11:18 PM

I really dont think anyone else has it or would even consider anything other then whay gm put on it. Just doing a carb seems like you joined the dark side. Some people on ls1tech.com have done or are doing it. Tons of people on a corvette fourm have done it on older engines for get the name of the site tho.

jwalk · 04-19-2011, 11:25 PM

I know what you mean about that. A few friends that I work with think I'm crazy for wanting to do this. I might have to go look around on ls1tech...
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85burb · 04-19-2011, 11:28 PM

I had a thread about a 383 or a carbed 6.0 and 90% of the responses where Why would you downgrade to a carb and so on. Sure the factory set up is the best for milage but driving it looks out of place to me sometimes. Need big aluminum intake under masive steel hood.

softballnrd27 · 04-20-2011, 01:35 PM

Why not go with and edelbrock efi intake and a 4150 style TB? I am going to go that route, and it can still be run by the stock computer. Other than the fuel rails it gives it the old school look with modern day mileage.

jwalk · 04-20-2011, 10:28 PM

Quote:

Originally Posted by 85burb

I had a thread about a 383 or a carbed 6.0 and 90% of the responses where Why would you downgrade to a carb and so on. Sure the factory set up is the best for milage but driving it looks out of place to me sometimes. Need big aluminum intake under masive steel hood.

I don't think it's downgrading! Their making some serious power out of them! I could go either way (carbed or stock) just depends on how I was building the truck.

Quote:

Originally Posted by softballnrd27

Why not go with and edelbrock efi intake and a 4150 style TB? I am going to go that route, and it can still be run by the stock computer. Other than the fuel rails it gives it the old school look with modern day mileage.

The main reason I am going with a carbed intake is to stay looking old school with the modern engine, so injectors and fuel rails won't look right to me. I was going to just run a carb, but this last weekend I played with the FAST Ez-efi and it's pretty sweet! Might still run a carb for a little bit, but I do plan to get the FAST set up. I was just seeing if anyone was already doing it.
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85burb · 04-20-2011, 11:28 PM

Well the easter bunny left this for me today. They sure put some time into laying this all out. The throttle body is a piece of art the harness is amazing and the tech. they put in it is superior. Cant wait to install it. I got the master kit that comes with everything you need like hoses, fittings, pump, relay and harness to pulg into the efi harness so no need for any wiring on the pump. Also a regulator and fuel filter. Just amazing.

jwalk · 04-21-2011, 09:32 PM

That's what I'm talking about! I'm pretty sure I will be going this route also! Now get that dude installed and let me know how everything goes! Lol
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85burb · 04-21-2011, 10:44 PM

Hope i can install it befor the end of next month. I need to with gas prices the way they are. Hope my factory retun line will handle the flow. The return side just uses hose clamps so not thinking it will be a problem.

ControlFreak · 04-28-2011, 01:09 PM

I have been thinking of doing this also. I can't wait to see how this works for you. Any progress yet?

85burb · 04-28-2011, 07:27 PM

Yes....The other day when them tornatos came thew i was sitting in closet and was playing with harness and conected the harness to the ecm and the t/b. I figured out how to wire it in. Trying to find out if the coolant temp sensor for a lq4 is the same resistance as the one in the fast kit. Other then that no.....

85burb · 05-01-2011, 11:38 PM

Got to install my ecm today. I wanted to put it inside but i could not due to size of hole i would have to cut to fit harness threw. I put it on pass side fender betwen the batt and coolant resivor. Was the best place i could see to put it that would not get it soaked when i went threw a puddle. Also found out that the factory coolant temp sensor that comes in a lq4 is the same resistance as the one that came with the fast kit so that means no adapters are needed. It even plugs into the fast harness. Only 7 bucks too!

60ratrod · 05-02-2011, 06:01 AM

the edelbrock ignition driver should work. i'm working my way to using the mpfi retrofit kit myself. i've been talking back and forth with the tech dept at FAST and there are guys out there using the mpfi kit with the LSx's and they are using the ignition drivers. there shouldn't be a problem with the edelbrock ignition driver, infact i think its an msd unit

85burb · 05-02-2011, 08:11 PM

Quote:

Originally Posted by 60ratrod

the edelbrock ignition driver should work. i'm working my way to using the mpfi retrofit kit myself. i've been talking back and forth with the tech dept at FAST and there are guys out there using the mpfi kit with the LSx's and they are using the ignition drivers. there shouldn't be a problem with the edelbrock ignition driver, infact i think its an msd unit

MSD does make the edelbrock controller. The only diff is you can program the msd timing curves. And the timing chips are not the same curves i beleve. I talked to the msd tech and they told me it does put out a V8 square wave signal whitch i beleve is exactly what the fast ecm is looking for.

ControlFreak · 05-02-2011, 09:00 AM

Looks good. Keep it up. Can't wait to hear it's running.

C10CORIE · 05-15-2011, 09:43 PM

Keep us posted on how this system works out please.

Super73 · 05-15-2011, 10:31 PM

Perhaps I am biased, but this looks good to me (Other than the rusty old headers).. IMO I'd loose the coil packs before the fuel rails.

85burb · 05-15-2011, 10:56 PM

super73 your motor gave the the idea. Have pic of you motor saved to my computer. That thing is a work of art.

Super73 · 05-15-2011, 10:58 PM

Thanks.. The next engine bay clean up thing for me will be relocating the coilpacks and running a sheetmetal alum valve cover. Just need to find time.

68GMCCustom · 05-15-2011, 10:58 PM

what throttle body is that?

85burb · 05-15-2011, 11:09 PM

Quote:

Originally Posted by 68GMCCustom

what throttle body is that?

Toilet bowl size

Super73 · 05-16-2011, 12:02 AM

It's an Edelbrock dominator TB that is said to flow 2k CFM. I really want to get a dominator Intake but there is only one on the market (it's a very nice piece but I can't justify it right now).

69sixpackbee · 05-17-2011, 04:53 PM

I have, er, HAD one on my 402. I was never that impressed with the overall characterstics of this system. I have been down the EFI road in the past and always gravitate back to the E'brock 1904 carb and the HEI. It always runs best with that setup. I've been there and done that. To all of you who love them I give you a thumbs up. It IS a nice product,,....but it is not for me. Some things are better left untouched. The Gen IV engines are just not efficient enough for this setup..IMHO

Next time (and the last time to boot) will be an LS6 transplant.
Gonna run what is supposed to be injected.

At least my carb wont fill the engine with gas when the pintles stick open and wont leave me stranded when the ECU takes a s**t!

Bud

04-17-2011, 11:47 PM	#1
jwalk What was I thinking? Join Date: Mar 2007 Location: oklahoma Posts: 1,137	LS with Fast Ez-efi? As stated looking to see if anyone has done this. I was going to go with a carb to stick with the old look, now I'm thinking about Ez-efi. Wasn't for sure if it's compatible with the edelbrock ignition setup that comes with their intakes. Thanks in advance! Posted via Mobile Device __________________ Justin '68 C/10 Custom Long wide bed '78 GMC Sierra short wide Project: Second time around...'68 short wide http://67-72chevytrucks.com/vboard/s...d.php?t=423949

04-18-2011, 07:59 PM	#2
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? Not sure about the edelbork one but my msd 6010 will work with it i am told. My ez efi master kit should be here on wendsday to put on my carbed 6.0. It is the one in my sig. A few people on ls1tech have it. Not many of them run yet do to still building cars. Got mine from summit cause they price matched atlanticspeeds price. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

04-19-2011, 09:45 PM	#3
jwalk What was I thinking? Join Date: Mar 2007 Location: oklahoma Posts: 1,137	Re: LS with Fast Ez-efi? That's sweet! Let me know how it goes and if you run into any problems? Any one else? Posted via Mobile Device __________________ Justin '68 C/10 Custom Long wide bed '78 GMC Sierra short wide Project: Second time around...'68 short wide http://67-72chevytrucks.com/vboard/s...d.php?t=423949

04-19-2011, 11:18 PM	#4
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? I really dont think anyone else has it or would even consider anything other then whay gm put on it. Just doing a carb seems like you joined the dark side. Some people on ls1tech.com have done or are doing it. Tons of people on a corvette fourm have done it on older engines for get the name of the site tho. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

04-19-2011, 11:25 PM	#5
jwalk What was I thinking? Join Date: Mar 2007 Location: oklahoma Posts: 1,137	Re: LS with Fast Ez-efi? I know what you mean about that. A few friends that I work with think I'm crazy for wanting to do this. I might have to go look around on ls1tech... Posted via Mobile Device __________________ Justin '68 C/10 Custom Long wide bed '78 GMC Sierra short wide Project: Second time around...'68 short wide http://67-72chevytrucks.com/vboard/s...d.php?t=423949

04-19-2011, 11:28 PM	#6
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? I had a thread about a 383 or a carbed 6.0 and 90% of the responses where Why would you downgrade to a carb and so on. Sure the factory set up is the best for milage but driving it looks out of place to me sometimes. Need big aluminum intake under masive steel hood. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

04-20-2011, 01:35 PM	#7
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: LS with Fast Ez-efi? Why not go with and edelbrock efi intake and a 4150 style TB? I am going to go that route, and it can still be run by the stock computer. Other than the fuel rails it gives it the old school look with modern day mileage. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

04-20-2011, 11:28 PM	#9
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? Well the easter bunny left this for me today. They sure put some time into laying this all out. The throttle body is a piece of art the harness is amazing and the tech. they put in it is superior. Cant wait to install it. I got the master kit that comes with everything you need like hoses, fittings, pump, relay and harness to pulg into the efi harness so no need for any wiring on the pump. Also a regulator and fuel filter. Just amazing. Attached Images __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

04-21-2011, 09:32 PM	#10
jwalk What was I thinking? Join Date: Mar 2007 Location: oklahoma Posts: 1,137	Re: LS with Fast Ez-efi? That's what I'm talking about! I'm pretty sure I will be going this route also! Now get that dude installed and let me know how everything goes! Lol Posted via Mobile Device __________________ Justin '68 C/10 Custom Long wide bed '78 GMC Sierra short wide Project: Second time around...'68 short wide http://67-72chevytrucks.com/vboard/s...d.php?t=423949

04-21-2011, 10:44 PM	#11
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? Hope i can install it befor the end of next month. I need to with gas prices the way they are. Hope my factory retun line will handle the flow. The return side just uses hose clamps so not thinking it will be a problem. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

04-28-2011, 01:09 PM	#12
ControlFreak Registered User Join Date: Oct 2010 Location: Lawrenceville, Ga Posts: 18	Re: LS with Fast Ez-efi? I have been thinking of doing this also. I can't wait to see how this works for you. Any progress yet?

04-28-2011, 07:27 PM	#13
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? Yes....The other day when them tornatos came thew i was sitting in closet and was playing with harness and conected the harness to the ecm and the t/b. I figured out how to wire it in. Trying to find out if the coolant temp sensor for a lq4 is the same resistance as the one in the fast kit. Other then that no..... __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

05-01-2011, 11:38 PM	#14
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? Got to install my ecm today. I wanted to put it inside but i could not due to size of hole i would have to cut to fit harness threw. I put it on pass side fender betwen the batt and coolant resivor. Was the best place i could see to put it that would not get it soaked when i went threw a puddle. Also found out that the factory coolant temp sensor that comes in a lq4 is the same resistance as the one that came with the fast kit so that means no adapters are needed. It even plugs into the fast harness. Only 7 bucks too! Attached Images __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle Last edited by 85burb; 05-01-2011 at 11:41 PM.

05-02-2011, 06:01 AM	#15
60ratrod yes, i do Join Date: Jun 2007 Location: Spokane, wa Posts: 2,734	Re: LS with Fast Ez-efi? the edelbrock ignition driver should work. i'm working my way to using the mpfi retrofit kit myself. i've been talking back and forth with the tech dept at FAST and there are guys out there using the mpfi kit with the LSx's and they are using the ignition drivers. there shouldn't be a problem with the edelbrock ignition driver, infact i think its an msd unit __________________ ERROR 404....... SNAPPY COMEBACK NOT FOUND _______________________________________________________________________________________________ -60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination" -07 gmt900 silverado 1500 lt xcab z71, granite blue -81 suzuki gs650g "shelah"- current project -81 kz1000m1 csr "sarge" -next project (just beautification) -07 kawasaki vulcan classic vn900 Last edited by 60ratrod; 05-02-2011 at 06:01 AM.

05-02-2011, 09:00 AM	#17
ControlFreak Registered User Join Date: Oct 2010 Location: Lawrenceville, Ga Posts: 18	Re: LS with Fast Ez-efi? Looks good. Keep it up. Can't wait to hear it's running.



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05-15-2011, 09:43 PM	#18
C10CORIE Registered User Join Date: Sep 2009 Location: Calgary Alberta Posts: 202	Re: LS with Fast Ez-efi? Keep us posted on how this system works out please.

05-15-2011, 10:31 PM	#19
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: LS with Fast Ez-efi? Perhaps I am biased, but this looks good to me (Other than the rusty old headers).. IMO I'd loose the coil packs before the fuel rails. Attached Images __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 05-15-2011 at 10:32 PM.

05-15-2011, 10:56 PM	#20
85burb Registered User Join Date: Dec 2009 Location: lindale,tx Posts: 2,373	Re: LS with Fast Ez-efi? super73 your motor gave the the idea. Have pic of you motor saved to my computer. That thing is a work of art. __________________ 82 c10 5.3/4l60 84 c20 5.3/sm465 85 chevy k10 suburban LQ4/4l60 91 chevy c10 suburban Lsa 5.3/4l60 2017 Silverado whipple 5.3 1964 Vw beetle 1974 vw beetle

05-15-2011, 10:58 PM	#21
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: LS with Fast Ez-efi? Thanks.. The next engine bay clean up thing for me will be relocating the coilpacks and running a sheetmetal alum valve cover. Just need to find time. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

05-15-2011, 10:58 PM	#22
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: LS with Fast Ez-efi? what throttle body is that? __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

05-16-2011, 12:02 AM	#24
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: LS with Fast Ez-efi? It's an Edelbrock dominator TB that is said to flow 2k CFM. I really want to get a dominator Intake but there is only one on the market (it's a very nice piece but I can't justify it right now). __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

05-17-2011, 04:53 PM	#25
69sixpackbee Registered User Join Date: Jan 2001 Location: Sabinal, Texas Posts: 1,706	Re: LS with Fast Ez-efi? I have, er, HAD one on my 402. I was never that impressed with the overall characterstics of this system. I have been down the EFI road in the past and always gravitate back to the E'brock 1904 carb and the HEI. It always runs best with that setup. I've been there and done that. To all of you who love them I give you a thumbs up. It IS a nice product,,....but it is not for me. Some things are better left untouched. The Gen IV engines are just not efficient enough for this setup..IMHO Next time (and the last time to boot) will be an LS6 transplant. Gonna run what is supposed to be injected. At least my carb wont fill the engine with gas when the pintles stick open and wont leave me stranded when the ECU takes a s**t! Bud

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