EFI Conversion Kit

[vance.dykes]

You didn't read about Dennis' trials and tribulations, did d you?

i went thru my own so each install is different

 

[vance.dykes]

i found a tank for fuel injection for 200 bucks on e bay drop in style for pump and sending unit witch is best .

 

[Dennis H]

The submersible pump was a source of heartache for me. Aeromotive with Pulse Width Modulation or some such. Too bad it couldn't survive in fuel. I think Ricks Tanks screwed that one up. Ended up the third pump good til this day was an over the counter Delco for a Corvette application.

 

[rmchrgr]

Had a Tanks, Inc. EFI- ready one in my Coronet. Good quality, fit like OE. I used their GPA 2 i -tank pump (Walbro 255lph). Never had an issue with it for at least 3 years of regular driving, long trips included. Around $700 for the tank and pump.

Need a sending unit too. There are ‘floatless’ ones available now which seem like a nice solution, just more expensive.

 

[vance.dykes]

mine was a tanks inc also got lucky on the tank and i have an a/c Delco pump and strainer also so i can get it any where i go

 

[themechanic]

Walbro pumps are very Loyd. I had one in the Holley/Tanks Inc. tank that bothered me do much I swapped it but for a pulp from Deatschwerks. It was whisper quiet.

DeatschWerks

DeatschWerks - Leading provider of high-performance fuel systems. Explore fuel pumps, injectors, and more for all your EFI needs. Shop now!

deatschwerks.com

 

[Jeff Peterson]

The Aeromotive in tank pumps also very quiet also

 

[rmchrgr]

Walbro pumps are very Loyd. I had one in the Holley/Tanks Inc. tank that bothered me do much I swapped it but for a pulp from Deatschwerks. It was whisper quiet.

Huh, that does not add up. The one I got from Tanks, Inc. was actually pretty quiet. You could hear it before startup during the key-on prime sequence but once the car was running it was essentially inaudible. Even at idle I never noticed it. It was a return system, not sure if that helps reduce pump noise.

Tanks, Inc. GPA-2 in tank fuel pump

 

[themechanic]

Huh, that does not add up. The one I got from Tanks, Inc. was actually pretty quiet. You could hear it before startup during the key-on prime sequence but once the car was running it was essentially inaudible. Even at idle I never noticed it. It was a return system, not sure if that helps reduce pump noise.

Tanks, Inc. GPA-2 in tank fuel pump

I could hear that Walbro with the car running. I could barely hear the Deatschwerks priming the engine.

 

[furious70]

My fury has been running a classic f.a.s.t mpi since 2009. I did not rewire the car. I did run some new circuits though. Walbro 255 pump hung on the frame rail, it is noisy.
Oem lean burn dizzy is the cheap way for computer control timing if you don't choose to use dual sync

 

[ckessel]

I see some of you are using the lean burn distributor. I wondered about using that. How do you connect that in? Was thinking about going EFI on my 67 wagon in the future. Has a 440 currently.

 

[Nxcoupe]

Most of these posts make it seem way more challenging than what I experienced in my conversion. I don't think it was just luck or skill on my part. I picked a well known kit and followed the directions, its not that big a deal. To me it was worth it even tho I don't drive a lot, I like that my 40+ yr old vette starts like a new car on the first crank after sitting for two weeks, but you have to decide it that is worth it for you. I do have a trickle charger wired in tho because the EFI ECU always pulls a little power.

It is that easy, you are witnessing someone trying to over-complicate it and intimidate the novice into spending money with them.

 

[71RRHI]

I do have a trickle charger wired in tho because the EFI ECU always pulls a little power.

If you wait a minute after turning your car off. So the ECU finishies saving any data (when the little hand held display turns off). You can disconnect the battery. Then you don't have to worry about the drain.

 

[furious70]

I've always stored with a trickle charger to save the battery anyway.
Your efi system does need to have options on what signal it can accept for timing. You can only only use lean burn if yours can support inductive pickup.
I bought the fancy dual sync dizzy years ago on sale in the event I switched to a different EFI that didn't support IPU

 

[vance.dykes]

I've always stored with a trickle charger to save the battery anyway.
Your efi system does need to have options on what signal it can accept for timing. You can only only use lean burn if yours can support inductive pickup.
I bought the fancy dual sync dizzy years ago on sale in the event I switched to a different EFI that didn't support IPU

there are many systems out there buy the parts designed for the system you are going to use mixing parts is not a good idea unless you know how fuel injection works in your sleep but that is J M O

AS SAID IN A PREVICES POST IF YOU DO NOT LET THE E.C.U. CONTROL TIMMING YOU ARE WASTING YOUR TIME. i got some 93 fuel a while back that made spark knock and all i had to do was tap a few screens and the timing adjusted .... no timing light needed

 

[vance.dykes]

hear is a post from the pro flo 4 forum read how he wired in power.



71CUDA
New Member

• Join Date: Feb 2025
• Posts: 5

#14
Yesterday, 03:14 PM

Make sure you have power during cranking, I joined my ballast resistor wires together and connected the ignition wire to the wire that used to go to the coil

his car spec,s
416 from a 340 block, 10.3 CR TFS 190 heads 1.6 rockers solid roller 257/[email protected]' .683"/.688" 108LS 104ICL TKX wide ratio 5spd 3.23 sure grip

 

[vance.dykes]

do you think he will have problems in time ???

 

[Dennis H]

Not sure of relevance but I always use a Marine Grade cut-off switch. No memory loss or boot up delays caused by this. Prevents parasitic drain and car has been stored in excess of 6 months and lights immediately.

 

[OneWheelPeel]

If you wait a minute after turning your car off. So the ECU finishies saving any data (when the little hand held display turns off). You can disconnect the battery. Then you don't have to worry about the drain.

Its more that in a C3 Corvette its pain in the *** for me to get to the battery to disconnect it all the time, especially with aftermarket seats. Much easier to just plug an extension cord in.

there are many systems out there buy the parts designed for the system you are going to use mixing parts is not a good idea unless you know how fuel injection works in your sleep but that is J M O

AS SAID IN A PREVICES POST IF YOU DO NOT LET THE E.C.U. CONTROL TIMMING YOU ARE WASTING YOUR TIME. i got some 93 fuel a while back that made spark knock and all i had to do was tap a few screens and the timing adjusted .... no timing light needed

I don't have my timing controlled, mainly because its a smog legal kit in Cali and it specifies not using that to maintain compliance even tho it is capable. I still disagree with you tho, EFI or not I would have to adjust for a spark knock with a carb under the hood if I got a bad tank, so now I have the other benefits of EFI, just not that particular one. Still worth it to me.
As much as I like EFI its still not a slam dunk that I will convert my Dodge down the road, I like all flavors and I like the simplicity of my Coronet, at least for now.

 

[Dennis H]

Just got off the phone with Edelbrock. They say wait 30 seconds to one minute after shut down to remove power via the battery cut-off switch. Data IS being collected and closed in that time frame WHO KNEW? Getting the cover and other pre storage tasks must have passively been enough time, but not intentional. I learn more here by accident! SON of a…