Anybody put in Edelbrock Fuel Injection?

I ran across this link EFI and I'm starting to get that dizzy feeling inside that means I'm about to spend a lot of money on the 'Vette. Somebody try and talk me out of it!

The improvements we saw in the '81 were dramatic. To begin with, it was your average, semi-anemic, 190hp low-compression late-smog-era Shark that suffered from sluggish throttle response, temperamental starting, and mediocre fuel economy. After installing the Edelbrock Pro-Flo EFI system, the '81 suddenly responded with crisp acceleration, great starting, and a noticeable improvement in mileage.

Keep in mind that I've pretty much run out of anything else to do on the car--all mechanicals/motor/drivetrain are less than 2 years old--paint's splendid, and the interior in brand new. I say that because adding EFI would be silly if the suspension or other some major component/system was shot.

 

I am with you on this one. Go ahead and spend the money. I have started selling off some old vette parts and am wanting to try to save up the money before I put it on the plastic. I have been thinking of the Holley Commander 950 unit.

Both units look nice and would be very sweet to have. Hmmmm.......which one and why would be my next question.

Excellent topic.

 

From the link, I know the Edelbrock fits in the 'vette nicely. Seems like a 2 day straight forward job with minimal fabrication and cursing.

Anybody wanna buy a one year old Edelbrock 1903 Quadrajet and Performer intake--with all new OEM emissions stuff? I'm in!

The 950 seems to show only for square bore intakes?...

 

i have just purchased the edelbrock pro flo 3503 for my baby and i am going to fit it as i do a left to right steering conversion. here in australia we only have to abide by local emission laws which came in in 1985. i will post pics as i go

 

I love my Holley Commander 950 system. One of the best things I have done to improve my Vette's driveability.

 

Bryan, what made you choose the Holley Commander 950 system?

 

I installed the ebrock BB, oval port system.

I picked the ebrock over holley, accel for a couple of reasons:

1. The brock system comes with a conversion kit to convert the vette points distributor to work with the efi system. That way, you can keep your old distro

2. The ebrock system come with its own handheld, palm size programmer. You dont need a lap top. You can program almost any parameter you desire

3. Comes with a small business card where you list cam specs, cubic inch, etc. Fax it back to ebrock. They then over night a chip that installs in the back of the computer module. Whats good about this, is that you basic parameters are already locked in, for easy initial start up

4. Every peice of hardware is included

BUT: Here are some issues you need to consider, REGARDLESS of what system you get:

1. Hood clearence: If you want to keep your stock hood TRIPLE check if yours will work. I use a drop base, and it barely clears it

2. DO NOT try to go small on your inner diameter on the fuel lines. Stock fuel lines WILL not work. They are not big enough to pass adequte fuel pressure. I tried to squeak by by just 1/8 inch smaller than required. It would break up (fuel starvation) at 3200 rpm

3. You will have to modify your gas inlet to allow a return line. Again, dont go small on the feed OR return line

4. You will have to mount an electric fuel pump No biggie here

To me, the fuel line issue was the worse

Installation for me was straight forward. All you really are doing is installing another manifold, and reinstalling distro

Im hurting for time here, but I have othet hints, etc ill post later

 

Check out http://www.mass-floefi.com Chris is a great guy and you won't get better tech support anywhwere. I have seen a few of his Ford systems and they work great, really easy to setup and flow over 1000cfm. Plus it looks good.

 

I have the edlebrock pro flow system it is awesome along with front and rear which has the duel mount mono suspension. It takes the 430 hp with no problem.For the gas lines I used braided it is well worth the work and money.

 

i want this too...post pics when you do it...i'll be licking my chops.....

 

my cross-fire has been trouble free and good gas mpg ,but i know that i would gain some hp by changing to this new injection .all the systems look good .but i thought that which everone that i bought that next week they would come out with one better . still deciding

 

I was looking through my Summit Catalog and found an Accel Digital Pro Ram EFI System. Another choice.

Accel Digital Pro Ram EFI

 

The Edelbrock will only fit under an LT1 hood--they wrote me back. darn.

 

The bad part about the Edel is the chip....what if you change to a bigger cam next year? Yup, new chip. With the C950, you just change a few tables.

Brett

 

This is true but with the commander 950 and the accel I have to come up with a laptop. Still like the thougts of being able to adjust everything via laptop.

 

Will the edelbrock system work with vortec heads, seems how you need to change the intake (1 benifit of the Holley).

 

You can get a laptop for $75 or less. It doesn't need to be the newest thing on the market - just needs to run Win98 or so...

 

check out this www.vetteweb.com/tech/0412vet_efi/
they install on a stock 81 with a stock hood just need a low profile air cleaner

 

I chose that system because it is the most versatile system out there. The software is very easy to use and understand and you can make changes on the fly. Edelbrock gives you a pre-programmed chip and you can make some very general changes to idle and WOT mixture. If you change a cam, exhaust, gearing, anything at all you have to get it re-programmed.
Holley's system is completely open and user adjustable. It will except turbo / supercharged systems, provisions for turning fans on and off, full ignition control with spark knock retard -- everything you need. I have one map for 91 octane fuel and built for daily driving. Another map I have is for race fuel and 1/4 mile runs. I can change then while the car is running with just a few keystrokes.
The recording capabilities also help because I can record EVERYTHING from my races. I record the o2 sensor, voltage, pulse width, timing advance, RPMS, water temp, intake air temp, intake vacuum, -- everything you would need to find out what is going on with your run. I can pinpoint tire spin, what RPMS my transmission is shifting at, the RPMS I am turning when I go through the end of the run, if I am running too lean or too rich.

All in all it is a great system and a very good price.

 

This probably equal too, if not better than the Holley system. I would buy either one if I had to do it all over again.