Edelbrock Pro-Flo 4 Fuel Injection System Retrofit
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- Опубліковано 6 сер 2024
- This video details best practices when retrofitting a carbureted car for fuel injection. This includes wiring strategy / fuel system considerations and most importantly: The final product/performance!
In this video, I retrofit my 1977 C3 Corvette for fuel injection using an Edelbrock Pro-Flo 4 EFI system (specifically, Edelbrock PN 35760). This is a bolt on 4150 style multi-port fuel injection intake that is easy to tune using Edelbrock's Android based E-tuner App.
Edelbrock competitors Holley Sniper and FiTech have similar system offerings and all (3) manufacturers are compatible with most Ford, Chevrolet & Chrysler/Dodge small & big block engines, including modern V8s also.
Check it you and let me know what you think! - Авто та транспорт
Nice video; I am doing a similar mod to my 1966 Mustang (302), any suggestions on engine cooling, fans, etc? I have very limited surface area in this application, so I am worried electric fans will not be adequate.
Whats nice on a 66 Gen1 Stang is that unlike my corvette, air flows STRAIGHT into the grill through the radiator / on my vette, there is a plastic deflector below the bumper that is REQUIRED to direct air through the radiator or it overheats / I'd go with the dual fan setup on your stang / it will work great. Basically on the highway they won't run, but in traffic they will kick in. Best part: With the Pro-Flo app, you can set the temperature that they come on / target a few degrees above your thermostat and you'll be all set / thanks for the comment Tony!
@@TacoJoe thanks for reply, only issue with dual fans on mine is my exposed radiator area is only 19w x 16h. Champion makes a nice 3 tube aluminum radiator with a 16" Spal fan; I'm going to call them on it. They claim it cools up to 450hp, well above my motor.
I think you are on the right track / a 450hp rating is likely rated on how much gas your beast 302 can pump through the engine on a spirited drive - thus - I think Champion likely figured that in with their 450hp rating. IMHO - Both Ford 289/302 (& Chevy 283/302/327) are the best American V8's ever made. Its a balance of rev ceiling and torque / also -SPAL makes EXCELLENT fans - I have a few of them now / good luck with your build Tony!
Whats your new mpg with this setup? Ive got a stock l48 in my 75 and getting 10 (holley 650 vac secondary carb thay could probably use some work on jets but runs pretty well)
@@grantimbrock I will let you know as soon as I run a tank through it. I am hoping to get it running in Aug. I gutted the car, all new electrical, suspension, transmission (4R70W 4sp auto), rebuilt 8" rearend with posi, added AC. So, it's been a lot of work but getting close. Tony
Very good video, appreciate your balance of doing things the right way while still keeping a budget in mind
I’m impressed by your wiring. It makes the difference between shoddy and excellent!
Even though this video is from two years ago I find it very helpful. Thank you for putting this video up on UA-cam. I did not know about the Edelbrock Pro-Flo 4 Fuel Injection system. I bought the Fast EZ EFI 2.0 system and have had lots of problems with it. It was so bad I took it off my car and went back to a Holley Carb. My system learned in the wrong direction and running was progressively terrible. (Back firing, code errors, ETC.) I am going to give this system and EFI another try.
sorry to hear that / so far the ProFlo has been great / no regrets / thanks for the comment!
Great video. Wiring is definitely a tricky part of any build and there are SO many options for every section and peice of a builds wiring. This is one of the better group of tips.
You could make a numbered list of wiring tips like this for retrofitting vehicles very massive, but you seem to know your way around summarizing information concisely.
Really impressed with this one. I look forward to keep seeing videos from you on general problems you've solved, like this one was in many ways.
We used this system on our Factory Five MKIV project. Absolutely great product!
Wow, this made me feel lazy amd inadequate… that wiring is… pimperish… 👌🏻
What a great job, clean panel and wiring job looks great, That Pro Flow looks like it will be a great performer, Thanks for sharing your knowledge ✔
As usual, very well done! Thanks for the update. Looking FWD to more!
Loved the video, showing the layout of the wiring and doing fuel lines etc was awesome! Thank you im inspired
Clean install. I like that it still looks stock on the outside……..nice cam choice by the way……..nice idle without being too choppy.
Great video and great build! 👍. Did the same work on my Mustang 69 and the system is truly great! 2years in now and have not one single issue… Tried both Sniper and Fitech before and those was horrible.
I had no clue Edelbrock had a kit like that, with the tablet. I'm not one for classic American engines too much, but the fi and the tuning kit seem very impressive. And the video was great too.
Clean & detailed! Very nice & you can't go wrong with a 4-speed Vette 😎👍
Dude....thank you a ton for documenting your work!!! Ive been debating whether or not to do certain things and which direction to go. This really nails things down. 👍👍
Glad it was useful / thanks for the comment!
Wow, nice job fabricating wow, love your wiring and fuse box. Very good video. Thank you.
Adding this system to my C4. 84 vette. Bye bye cross fire 🔥.
Crossfire=bad news :) - don't know a lot about these systems though - why do people hate them so much?
You do really nice work. Thanks.
Some super nice work man.
Great information thx for taking the time to share
Another awesome video!! Thanks Taco Joe! Really well done.
Thanks Mr. Davis / I'm sooooo late to the party w/EFI - should have done it years ago!
Hey Taco Joe, that was so freaking awesome, thanks.
Glad you enjoyed it!
Great video, thanks
Dude, you are brilliant !!
Outstanding video, you are so calm and patient, makes me nuts, I am ADHD, OCD and a touch of Asperger's so I run fast 100%. But very well done Love the dash more like the C2 which was my favorite. All great choices, Need to see power numbers???? D
Have some content in the works on before/after - stay tuned!
Thank you! Great video.
Dangit i gotta get me one of these :)
Nice job
THANK YOU SO MUCH. TOTALLY AWSOME VIDEO!!! TOTALLY AWSOME EDUCATION. I AM THINKING ABOUT THE EDELBROCK PRO FLO FOR THE EDSEL. AND I NEED TO REWIRE IT ANYWAY. SO WHY NOT DO A TOTAL UPGRADE. So I HAVE ALL THE TECHNOLOGY FOR THE FUTURE. AND YEAT GREAT DAILY DRIVER TECHNOLOGY. I LOTHE UPGRADES ON YOUR CORVETTE!!! GREAT VIDEO AND THANKS FOR SHARING!!!! I LEARNED SO MUCH.
thanks for the nice comment John / glad you like the videos. The Proflo4 has been great / really happy with the final product and it definitely is a better daily driver now.
Super cool!!
Pretty cool !
So definitely more power and better mpg with this setup? Look very clean and professional the way u did it,can't wait to have my c3 corvette
Fantastic
Very nice 👍
Interesting option for my ‘79 C3.
I watch all of this build and you did a great job but the dashboard should have stayed. They make electronic tachs to replace the distributor drive. I built a 74 with a big block 427 and it was a beast with the stock rear and Muncie trans but I fully agree with you about the roller cam, as I wiped out 3 lobes soon after I finished.
Nice work.Good fabrication.The Edelbrock is also my choice for my 1990 gmc 1500.Very informative video.Merry Christmas,nice Corvette
I enjoyed this series so far. You said that you are not going deep into suspension modifications. The car would look good 1 1/2 to 2" lower and coil over shocks are not that expensive.
Well. Very Nice work, but after I saw the first video, I did expect more from the others. And how about that performance. What happend to 0-60 time and quarter mile time.😢 and how come you did not lower the car and buy new wheels, as you planned to.
still in the works Peter / thanks for the comment - wiring up lights/horn/radio as we speak, finishing the dash with a new look (stay tuned) and will finish with some new wheels all around
You should try this on a 1970s Cadillac with a big block. I've always wondered how much power does 502s could get if you just swapped out the fuel and engine management components.
Hey Taco Joe,
Very nice job on the wiring. Three years ago I installed a fitech on my C3, I've had nothing but problems. One of my problems I had was hood fitment and now I want to change over to this system pro Flo 4. Did you have any fitment issues with your hood? I don't see myself investing 1200 to 1500 for a new high rise hood. Trying to keep it looking stock.
Hi, I’m new here. I have the same FI kit that I’m also going to install on our 76 C3. Did you ever consider going with the Edelbrock fi sump kit? Great video by the way!
@TacoJoe Now that you've done this to the Vette are you going convert the Cobra to EFI? I think when I learned carburetors as a mechanic (Mid 90s), we were some of the last generation of Mechanics getting formal hands on training for carburetion. I like the idea of a simple carb setup but worry I will get frustrated with it, for the reasons you have mentioned in the video.
Thanks for the comment taduse - as for EFI on the next Cobra motor: We will see! First I'm going to get the short block put together and then I'll figure out these details :)
Mind telling me what state that is??
Looks real nice thanks
Great video. I wish it was more detailed, but I just like nerdy details. The exhaust system sounds great, what mufflers are you using?
The mufflers are OEM replacement type (typical baffled w/insulation) - Flo-masters are the way to go though. I actually had some home made echo cans on a Chevelle I once owned - basically they were 2 steel boxes with 2 v-baffles welded in-line - sounded EXCELLENT and were back-fire proof. Thanks for the comment!
Hi, will EFI go under the hood, or did you have to adjust it? Thank you
It's curious how you talked about fire hazards and then mounted your high tension coil an inch away from your fuel pressure regulator.
I've been comparing which Holley EFI to get, but it's nice to see someone using the Edelbrock EFI. Can you tell me a little more about your fuel system? Did you modify a new c3 gas tank or an EFI tank already providing baffle and holes for fuel pump assembly etc? what fuel pump assembly bracket and fuel sender did you use? Thank you! Great video w shots of the Corvette. Job well done!
Hi Jim- I purchased a tank from Tanks Inc and a walbro 250 lph pump from summit. The tanks are nice and have baffles around the pump. I bought the sender from Tanks Inc too - its a nice setup and my only gripe is the sender float area is limited with the C3 specific tank -thus- when you get to 1/4 tank you can drop to 1/8" 10 miles later -lol. Check out their website / lots of specific kits for classic cars and good luck with your build!
Loved the video. Just not sure i want to commit 3 grand or so when my quadrajet is so dialed in. It is an investment I know. Just too scared
Hi! Thanks for the video!!!! Planning to do the same with my 82 C3. How is holding up so far? Any issues or show stoppers?
works great / starts in the cold, runs lean and sounds like a classic V8 / thanks for the comment!
Nice work! Putting on in my 70 chevelle. Where did you find a full 12v during crank?
Full 12V is at the battery / wire it there Jason - good luck and thanks for the comment!
In the beginning you said the kit includes everything, but then the rest of the video is the things you needed to add. Unless you get the kit that includes the fuel sump then you have to plan on a high pressure pump and feed. I wasn't clear on what all of the relays you had were for.
Are you able to send links of items you used when converting your C3 to EFI. Electrical components, fuel tank, pump, vent, etc. I’m planning to do the conversion as well as rewire and this will be extremely helpful.
I'll see if I can put something together. To get a head start though, visit the Tanks Inc website....www.tanksinc.com / you can get a retrofit EFI tank for your classic car and they have kits which include the pump / sender / etc. Good deals and nice tanks too. Pump I used was a Walbro 255lph
1. What would have the work cost if you didn’t do it yourself
2. What was the grand total of your build?
Great job!! I have the same setup, 70 Chevy C20 with the tank behind the seat. BUT....I have a sub pump (aaaahhh) I need a electronic fuel pump but not sure what I should get. Please let me know. Thanks!!
You can do it! / the external pumps are decent, but in-tank typically is better if you have access. I have another car with an external Carter pump and it works great/no starvation issues -but- it's only 8-10pcs. If you go external, try and go brushless if you can / they last longer. Thanks for the comment!
@TacoJoe Thank you!! I think I'm going internal and be done with it lol.
I'm planning on doing an EFI kit on my C3 and I'm wondering if the O2 sensors would be a pain since the headers sit so close to the frame rails or if it's gonna clear.
not a big deal - you can purchase collectors with the O2 bung already welded in and then position it however you like it (ie- you can rotate it 360 degrees) - good luck and thanks for the comment!
Does this system control timing or do you have to buy a different distributor separate from the one in the kit thanks
The kit distributor controls timing - basically there is a long flat that covers 50-60degs of sweep and the ecu picks advance based on vacuum/fuel/o2 readings, etc - thanks for the comment
Nice clean install. You had any issues with the proflo since installing it?
No big issues / did have a minor issue with an airflow whistle/howl on the intake that I fixed by adding a spacer under the throttle body / other than that its been great - thanks for the comment!
@@TacoJoe Thanks for the feedback. Looking at this system to replace my 1st gen Sniper.
Some ECU’s are sitting in the housing at steaming temps!
Which kit did you go with? I've considered the 35770 for mine as I have a built 400 SBC.
I went with the 35760 - I don't know what the difference is with the 35770 but if I could go back in time: I think I would have got the intake with the vortec provisions - is even harder to torque the intake builds with the fuel rails there. No huge regrets though / runs great & motor is strong - thanks for the comment!
@@TacoJoe the 35760 comes with 29 lb/hr injectors and supports up to 450 HP. The 35770 comes with 35 lb/hr injectors and supports up to 550 HP
I got the 29lb/hr injectors - in hindsight: pretty sure the motor could easily handle the 35lb/hr - might need to upgrade these at some point / thanks for the comment!
you should of LS swapped it
haha- yes sir, not a bad path. I didn't want to mess with the steering hydraulics/valve (I think an LS needs a special oil pan) - in hindsight, maybe should have gone this route though. Thanks for the comment!