Out with the old Holley system - Blue electric fuel pump, regulator and 750 vacuum secondary with electric choke.
In with the new Fitech system - 30003 system with Fitech fuel pump (just a 55 psi electric fuel pump)
Just have to trace my fuel pump wires back to the pump and connect up. This keyed power from my old pump set up will power the Fitech and the associated fuel pump trigger wire from the unit will be connected to the new pump. I was able to pull my electric fan thermos from the cooling system as the Fitech unit will also trigger your fans. I have the wide band 02 sensor bung welded in and the sensor wired. Fuel lines are run to the Fitech unit. Just need one AN fitting to finish the supply and return lines.
Geez Rhys.. That looks awsome.. Nice clean install. Have you fired it yet.. Very SWEET .. How much was the whole kit , ball park and how long did it take to do that conversion..
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Have not fired it yet.................... i am waiting for one AN fitting to arrive................ I have about three billion fittings in my drawer but wouldn't you know, not the one I need............... Isn't that always the way!!!! I just need to wire it up as well. Probably another three or four hours. I think the kit worked out to $1050.00 from Amazon.ca............... Rhys.
No Mike, unfortunately no timing control............................ but it is a wide band O2................................... and really cheap for entry level EFI....................... We will see how it runs.............. I will keep everyone posted.............. Rhys.
The Fitech unit I used on my 57 was one of the first out. It controls the timing. I used their fuel system reservoir and pump, supplied by the mechanical pump on the engine.. Ryhs, please keep an eye on the wiring. I have had three problems with it. The first was a burnt pin in the 6 pin connector that supplies power to the pump, second was a broken wire to the key on supply and the third was a broken wire to the pump.
I've seen pics of their new unit and it has a new separate connector for the key on and pump supply. Maybe my bitchin' about the gauge and connectors paid off for you!
I'm PM'ing some information that might save you some time and headaches.
Well all done. It fired up on the second or third crank of the key. I ran it for about ten minutes and it seems to be measuring parameters properly and "learning". Very impressed so far.............. Crappy Video but oh well. Rhys.
not knowing pretty much nothing about efi other than turning the key and it usually starts i have a ? or 2. 1- you removed what would seem like a perfectly good 750 cfm carb system and replaced it with this system and i am curious what is the equivalent flow ratio and how tune-able is the ratio? 2- again this one out of ignorance, upon appearance this is what i thought a early model throttle body system would look like. they are probably the same thing due to some sort of a computer regulating everything but when i lift the hood on my 50 with a 302efi i don't think there is something under all the coverings looking similar to a carb but i have never looked either. are these tuned up or down using jets or via the computer? i only ask because of the similarity of appearance and they say ignorance is bliss.
ok, 3- and this isn't a question. it looks good rhys and i hope it does the trick for you bud. well 1 little ?, why the change over?
-- Edited by shag766 on Tuesday 31st of January 2017 07:43:05 AM
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Shag
to answer your questions,
#1 The CFM is somewhere north of 750. The unit I bought( one of the earliest ) will handle up to 800 HP. The computer adjusts the air/fuel ratio 60 times a second to keep you in your target ratio, that you can set. So if you set it at 14.5:1 the computer will keep it there throughout the RPM range.
#2 the only thing that is similar to a throttle body are the throttle blades. A T/B system has 1 or 2 injectors rising above the main body. This unit has 4 injectors that feed directly into the Venturi area and spray at an angle to start the atomization process.
As I said above the computer controls the timing and fuel, so you get the best possible fuel /ignition control at 60 times a second. The unit measures throttle position and rate, manifold pressure (which is load), temperature (both ambient and coolant), uses an O2 sensor to manage fuel. If you use the computer to control the timing, why wouldn't you optimize the performance, you have to lock the distributor down, no vacuum advance, no mechanical advance.
#3 Why change over? Well in my case on the 57 and now on the 29 that I sold to a guy in Scotland, has better fuel MPG, instant starts, more power ( seat of the pants feel), I know what my 57 was before and now it is MUCH stronger. And finally my wife likes the no fuel smell in the garage
Shag to answer your questions, #1 The CFM is somewhere north of 750. The unit I bought( one of the earliest ) will handle up to 800 HP. The computer adjusts the air/fuel ratio 60 times a second to keep you in your target ratio, that you can set. So if you set it at 14.5:1 the computer will keep it there throughout the RPM range. #2 the only thing that is similar to a throttle body are the throttle blades. A T/B system has 1 or 2 injectors rising above the main body. This unit has 4 injectors that feed directly into the Venturi area and spray at an angle to start the atomization process. As I said above the computer controls the timing and fuel, so you get the best possible fuel /ignition control at 60 times a second. The unit measures throttle position and rate, manifold pressure (which is load), temperature (both ambient and coolant), uses an O2 sensor to manage fuel. If you use the computer to control the timing, why wouldn't you optimize the performance, you have to lock the distributor down, no vacuum advance, no mechanical advance. #3 Why change over? Well in my case on the 57 and now on the 29 that I sold to a guy in Scotland, has better fuel MPG, instant starts, more power ( seat of the pants feel), I know what my 57 was before and now it is MUCH stronger. And finally my wife likes the no fuel smell in the garage
X2, exactly my thoughts.................................................... Thanks, Wayne.
Shag to answer your questions, #1 The CFM is somewhere north of 750. The unit I bought( one of the earliest ) will handle up to 800 HP. The computer adjusts the air/fuel ratio 60 times a second to keep you in your target ratio, that you can set. So if you set it at 14.5:1 the computer will keep it there throughout the RPM range. #2 the only thing that is similar to a throttle body are the throttle blades. A T/B system has 1 or 2 injectors rising above the main body. This unit has 4 injectors that feed directly into the Venturi area and spray at an angle to start the atomization process. As I said above the computer controls the timing and fuel, so you get the best possible fuel /ignition control at 60 times a second. The unit measures throttle position and rate, manifold pressure (which is load), temperature (both ambient and coolant), uses an O2 sensor to manage fuel. If you use the computer to control the timing, why wouldn't you optimize the performance, you have to lock the distributor down, no vacuum advance, no mechanical advance. #3 Why change over? Well in my case on the 57 and now on the 29 that I sold to a guy in Scotland, has better fuel MPG, instant starts, more power ( seat of the pants feel), I know what my 57 was before and now it is MUCH stronger. And finally my wife likes the no fuel smell in the garage
X2, exactly my thoughts.................................................... Thanks, Wayne.
ok, like i said this is new area to me. carb talk came up last week finishing off the hemi rebuild for the coronet and i was undecided on putting the 2x4 on it or putting the single 850 back on, the single won. this system gives you the best of 2 worlds in that it is efi and it maintains a somewhat carb appearance to it. the last time i seen/remembered a carb look was t/b. i know what efi can do vs a carb but my vision was what the 5lt in the truck looks like. interesting.
thanks guys
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"if you are not the lead dog, the view is all the same"
Yes........... Chance to get somethings done as it was a beautiful day in Southwestern Ontario. First off were the dreaded 2006 Ford F150 5.4 Triton spark plug replacements. To be honest, the 7mm coil on plug hold down bolts were the worst this time.................. and the dreaded number 4 cylinder plug (you can just see my socket extension at the back in the picture)....... what a reach.
Next was all the summer tires on to all three daily drivers. Nice easy job and as I mentioned beautiful weather.
Finally, thought I would get the old 1981 Yamaha PW50 running. It has been stored for about seven years after the kids outgrew. Tried my new Ultrasonic cleaner for the first time. I have to say, very impressed with how well it worked............... Only problem now is waiting for parts. I ordered up some small parts off of Amazon but with all that is going on it looks like a month delivery. Very understandable but that is hard to take when you are used to next day delivery.
My apologies for not posting much over the past couple of years. I retired from my past career after thirty plus years, took one hour off and started a new career at another power generating station. This meant a move from Niagara back to Sarnia where we are just settling in. Moved into our new home and then got our oldest off to her first year of studies at the University of Waterloo. We all know the rest since the New Year. stay safe everyone..................... Rhys.
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