Re: Fitech EFI
[Re: Beep Beep]
#2101023
06/30/16 11:03 AM
06/30/16 11:03 AM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Call me skeptical. As a firefighter I am a trained pessimist anyway. Seems to me that the weak point of the old Lean Burn system was having the electronics controlling everything on the air cleaner atop the engine. The heat and vibration combined for an unreliable system. I think I will wait and see how they do in the long run before biting. That same thing also keeps me from the Holley Sniper as well. Add to that, the lack of user repair means either having a spare or possibly getting stranded. BTW, for those who were wondering, EFI-4 and the Sniper do offer spark control and as far as I can tell will interface with an MSD 6 if you want capacitive discharge as well.
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Fitech EFI
[Re: Beep Beep]
#2101027
06/30/16 11:16 AM
06/30/16 11:16 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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I am running the Go-EFI-8 with timing control, using a locked out MP electronic dizzy, and an old MSD 6AL.
No problems so far. Although the FITech only has 3x3 tables for spark, and 3 of those are defined in boost, so useless for NA guys.
I am only able to get 9mpg on my 493 so far...need to improve that a bit still
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: Fitech EFI
[Re: Beep Beep]
#2101038
06/30/16 11:32 AM
06/30/16 11:32 AM
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Joined: Oct 2005
Posts: 8,908 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,908
Ontario, Canada
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Just curious if the timing control is worth spending the extra funds. What do you mean by this, its standard on all their units, not an option. Besides, FiTech's units are the least expense efi units on the market. Is there anywhere that explains how the timing control works and what it does ??
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Re: Fitech EFI
[Re: Stanton]
#2101046
06/30/16 11:49 AM
06/30/16 11:49 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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Is there anywhere that explains how the timing control works and what it does ??
Not sure I understand the question... The mag pickup in the distributor sends signal to the FITech, the FITech then sends your desired timing signal to the MSD via the "points" wire, just as if you were running an external retard box, MSD fires coil, coil goes through cap to spark plug In the FITech, you can identify spark timing with respect to engine speed and manifold pressure. If you have a programmable box now, or an electronic box with dialed in mechanical and vacuum advance , there is no benefit.
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: Fitech EFI
[Re: Beep Beep]
#2101118
06/30/16 02:04 PM
06/30/16 02:04 PM
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Joined: Oct 2005
Posts: 8,908 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,908
Ontario, Canada
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Seems to me that the weak point of the old Lean Burn system was having the electronics controlling everything on the air cleaner atop the engine. The heat and vibration combined for an unreliable system. Well ... That was the technology of the time - multiple components on a large circuit board with loads of soldered connections and virtually no heat sinking. There have been significant advances since then and I suspect everything is on a single chip the size of a fingernail. The whole throttle body would act as a heat sink - the airflow through it carrying the heat away from the ECU. This is probably more effective than mounting the ECU on the firewall or inner fender.
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Re: Fitech EFI
[Re: Beep Beep]
#2101124
06/30/16 02:12 PM
06/30/16 02:12 PM
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Joined: Oct 2005
Posts: 8,908 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,908
Ontario, Canada
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They do make a mean street efi with no timing control. I also could not find any instruction on the timing control.
I currently have an Msd billet dizzy with no vac advance, and a msd 6al box.
Mean street is $1100 and the Efi8 is $1500. I was under the impression that the EFI8 was only for blown or turbo motors but I see that it's not. Actually, I like the idea of the dual fan control mor than the timing control !!
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Re: Fitech EFI
[Re: Beep Beep]
#2101144
06/30/16 02:58 PM
06/30/16 02:58 PM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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Outlawd how much power are you making? How easy is it to program the timing control?
Currently ~550, more to come with N2O, and possibly boost later on. I got the bigger unit to allow flexibility to add more power, run E85, use it on a different engine...etc. There is a guy with a boosted SBC running in the 9's with it I think, he is currently investigating injectors to support more power. The main limit I see, especially for NA, is the ~860cfm rating of the throttle body Timing control is easy, just have to have an idea where you want you timing at idle, part throttle cruise, and WOT, then enter those values into the handheld unit
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: Fitech EFI
[Re: Stanton]
#2101159
06/30/16 03:17 PM
06/30/16 03:17 PM
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Joined: Jan 2003
Posts: 25,967 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,967
Rio Linda, CA
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Just curious if the timing control is worth spending the extra funds. What do you mean by this, its standard on all their units, not an option. The two base units don't have timing control.
The INTERNET, the MISinformation superhighway
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Re: Fitech EFI
[Re: Stanton]
#2101845
07/01/16 01:14 PM
07/01/16 01:14 PM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Well ...
That was the technology of the time - multiple components on a large circuit board with loads of soldered connections and virtually no heat sinking. There have been significant advances since then and I suspect everything is on a single chip the size of a fingernail. The whole throttle body would act as a heat sink - the airflow through it carrying the heat away from the ECU. This is probably more effective than mounting the ECU on the firewall or inner fender.
True but as you know, there are still ancillary components that are needed to run the chip. And even though they are all now surface mount components there still are wires and/or pins connecting things that are soldered. Crystals still control clocks and are vibration resistant but not vibration proof. I would not store my smart phone on top of an engine, just saying. My Megasquirt ECU sits in the passenger compartment with me. Craig
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Fitech EFI
[Re: denfireguy]
#2101930
07/01/16 03:26 PM
07/01/16 03:26 PM
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Joined: Jan 2003
Posts: 28,069 Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,069
Irving, TX
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Can you spot the computer in this pic? They've been there for years and it is extremely rare for us to see a failure.
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind. - Stu Harmon
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