I Love Efi!
03-03-2006, 02:13 AM
#1
Race Director
Thread Starter
I Love Efi!
No more float bowls, no more jets. Just drive down the road and program out any inconsistensies and set it for econ or perform, even in the same program, run lean closed loop on cruise, richen up and open loop on accel.
The EFI I am using even is self learning, sort of a Heuristically programmed, Algorithmic, Logrithmic type of brain. It takes the MAP,and compares it to what is desireable as far as lean/rich and makes changes to the program within certain limits, and stores these changes.
Real time data logging so you can see if you are running too rich/lean under certain throttle/temp/altitude conditions, and just go in and make the necessary MAP changes.
It is a MEFI 4b, as used on the newer ramjet FI units,and now there is software that one can buy to tweak it, rather than having to deal with sendign the brain back to GM.
Nice software, windows based, drop down list, etc. Isn't cheap,and each software is keycoded to ONE MEFI, so you can't buy one software and reprogram every MEFI in town, but it is user friendly.
Doug
The EFI I am using even is self learning, sort of a Heuristically programmed, Algorithmic, Logrithmic type of brain. It takes the MAP,and compares it to what is desireable as far as lean/rich and makes changes to the program within certain limits, and stores these changes.
Real time data logging so you can see if you are running too rich/lean under certain throttle/temp/altitude conditions, and just go in and make the necessary MAP changes.
It is a MEFI 4b, as used on the newer ramjet FI units,and now there is software that one can buy to tweak it, rather than having to deal with sendign the brain back to GM.
Nice software, windows based, drop down list, etc. Isn't cheap,and each software is keycoded to ONE MEFI, so you can't buy one software and reprogram every MEFI in town, but it is user friendly.
Doug
03-03-2006, 08:13 AM
#3
Safety Car
Originally Posted by AZDoug
....It is a MEFI 4b, as used on the newer ramjet FI units,and now there is software that one can buy to tweak it, rather than having to deal with sendign the brain back to GM.
Nice software, windows based, drop down list, etc. Isn't cheap,and each software is keycoded to ONE MEFI, so you can't buy one software and reprogram every MEFI in town, but it is user friendly.
Doug
Nice software, windows based, drop down list, etc. Isn't cheap,and each software is keycoded to ONE MEFI, so you can't buy one software and reprogram every MEFI in town, but it is user friendly.
Doug
Charles
03-03-2006, 10:01 AM
#4
EFI is the only way to go!!!
03-03-2006, 10:21 AM
#5
Race Director
Thread Starter
Originally Posted by HouTex1964Vert
Which system did you use?
It is a GM (Delphi) brain,as used on the GM Ramjet engines. It is designed for Marine/underhood use, so you don't have to stuff the computer in the passenger compartment someplace
The manifolld is a Edelbrock Victor Jr that was modified by adding injectors. I went with that rather than a ramjet, as The Ramjet supposedly isn't as good over 5000 RPM as I woudl like, as told to me by two different EFI people.
Doug
03-03-2006, 11:13 AM
#6
Safety Car
Originally Posted by AZDoug
MEFI 4b.
It is a GM (Delphi) brain,as used on the GM Ramjet engines. It is designed for Marine/underhood use, so you don't have to stuff the computer in the passenger compartment someplace
Doug
It is a GM (Delphi) brain,as used on the GM Ramjet engines. It is designed for Marine/underhood use, so you don't have to stuff the computer in the passenger compartment someplace
Doug
Charles
03-03-2006, 11:13 AM
#7
I hear ya doug!!! This guy makes an awesome system that requires no programming. Customer service is second to none.
www.qualityroadsters.com
His name is Chris Richards
click on mass flo systems onthe webpage
www.qualityroadsters.com
His name is Chris Richards
click on mass flo systems onthe webpage
03-03-2006, 12:44 PM
#8
Racer
Originally Posted by AZDoug
MEFI 4b.
It is a GM (Delphi) brain,as used on the GM Ramjet engines. It is designed for Marine/underhood use, so you don't have to stuff the computer in the passenger compartment someplace
The manifolld is a Edelbrock Victor Jr that was modified by adding injectors. I went with that rather than a ramjet, as The Ramjet supposedly isn't as good over 5000 RPM as I woudl like, as told to me by two different EFI people.
Doug
It is a GM (Delphi) brain,as used on the GM Ramjet engines. It is designed for Marine/underhood use, so you don't have to stuff the computer in the passenger compartment someplace
The manifolld is a Edelbrock Victor Jr that was modified by adding injectors. I went with that rather than a ramjet, as The Ramjet supposedly isn't as good over 5000 RPM as I woudl like, as told to me by two different EFI people.
Doug
03-03-2006, 03:24 PM
#10
Le Mans Master
Member Since: Sep 2003
Location: Norwalk ohio
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2019 Corvette of the Year Winner
St. Jude Donor '15
see my posting on this thread....anyone have experience with this kind of set up?
http://forums.corvetteforum.com/show...223&forum_id=4
http://forums.corvetteforum.com/show...223&forum_id=4
03-03-2006, 04:48 PM
#11
Originally Posted by cbernhardt
So what software/interface are you using to program the MEFI4 computer? I have the Ram Jet system but, from what I have been told, it is not user programmable. I know that Arizona Speed and Marine can program the chip, but you have to send it to them. Where did you purchase your "GM Delphi (brain)"? Does your's have a GM part number? Just curious to see if it is the same as mine.
Charles
Charles
Like the rest have been asking, what software/interface are you using to prgoram the MEFI4 computer? I have not heard of any end user programs available to tune them in. LET US KNOW
Chuck
03-03-2006, 05:35 PM
#12
Race Director
Thread Starter
Originally Posted by cbernhardt
So what software/interface are you using to program the MEFI4 computer? I have the Ram Jet system but, from what I have been told, it is not user programmable. I know that Arizona Speed and Marine can program the chip, but you have to send it to them. Where did you purchase your "GM Delphi (brain)"? Does your's have a GM part number? Just curious to see if it is the same as mine.
Charles
Charles
As far as the other system, any pre programmed EFI will work for whatever generic engine is was designed for, but it won't be as efficient or deliver the HP that a custom programmed box will. If you are just cruisin' the burger joint, it is probably fine, if you want your 327 to shut down the Dodge Viper, it probably isn't.
I don't have the part # in front of me, it is in my file someplace, got it from ASM.
Doug
03-03-2006, 05:45 PM
#13
Race Director
Thread Starter
Originally Posted by swissie
How much did you spend on this set-up?
Doug
