Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2084189
06/01/16 05:36 PM
06/01/16 05:36 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Polyspheric,
Do you know what parts cables that I would need to buy if going the Holley efi port injector system that would also be self learning for both street/strip?
I am open to all suggestions!
Thank you, Mark
I use Locar for both throttle and kick down on my 518 and to Poly... on the manifolds I build the carbs are turned at a angle so they all line up over the port
Last edited by MR_P_BODY; 06/01/16 05:39 PM.
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: Dragula]
#2084424
06/02/16 01:18 AM
06/02/16 01:18 AM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,318
State of confusion
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SO, the butterfly`s point forward and the back of the cowl takes in air? OR, does it get air through the grill..........seems WAY wrong to me...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2084609
06/02/16 01:28 PM
06/02/16 01:28 PM
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Joined: Aug 2014
Posts: 562 Ohio
lockjaw-express
OP
mopar
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OP
mopar
Joined: Aug 2014
Posts: 562
Ohio
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Dragula & Mike,
So if I decide to buy the Holley FI, it looks like I would buy the Holley Dominator ECU, the Fuel Injector wiring harness, Fuel injector rail kit that includes the injectors...
Would I need to run two O2 sensors, one on each side of the headers?
The harness kit for the o2 sensors, two 1000 cfm throttle bodies...but Holley sells 4 styles?
Anything else I am missing, since I do not see a complete kit for sale for direct port injection...and will the Dominator ECU self learn?
Sorry for all the questions, but if the Holley system is better than the FiTech, I would like to know before I open the box.
Thank you, Mark
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2084955
06/03/16 12:21 AM
06/03/16 12:21 AM
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Joined: Mar 2007
Posts: 3,298 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,298
West Coast, USA
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Why not run a 2000cfm 4500 throttle body on a single plane Dominator intake with the Holley ECU and a Vaporworks CTS-V module with PWM? Keep it simple. If you need more CFM than that, look at some of these. https://accufabracing.com/throttle-bodies/racing-throttle-bodies/four-barrel-throttle-bodies
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2087786
06/07/16 03:50 PM
06/07/16 03:50 PM
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Joined: Oct 2006
Posts: 246 Cranberry Twp PA (North of Pit...
rumblefish72
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 246
Cranberry Twp PA (North of Pit...
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I think it's a no-brainer to run EFI on these big Hemis (if you have the $$$). I have most of the parts to build a 604. My plan is to run two of the EZ-EFI throttle bodies on a Stage V dual-quad intake. I already have the EZ-EFI single quad kit and a dual quad upgrade kit. Yes - I'd rather run a dry manifold but I already have the parts for a wet manifold setup. Most engine builders I talked to suggested that the Stave V inline dual quad was a better design than the Indy Modman. The Modman is completely open in the plenum (all 8 ports) and just has short stubs that lead to the ports in the head. The Stage V has a front 4 cylinders plenum and a back 4 plenum with a smallish rectangular hole connecting the two plenums. The Stage V port matched to the heads is the way I plan to go. Plus Tim at FHO has a Shaker baseplate that fits the Stage V intake manifold carb spacing. I'd also like to get a good look at the new Eddy dual quad HEMI manifold. I'm not sure if the EZ-EFI ECU will handle the low vacuum of a big roller cam. You might have to go to the FAST XFI ECU or Sportsman XFI. I haven't read enough about the FiTech to understand if low vacuum is a problem for that ECU. The EZ-EFI self-learning code sees that low vacuum and thinks that you have your foot on the gas pedal. I would have thought that the TPS (Throttle Position Sensor) would override the low MAP signal in the self-learning code and the ECU would know that you are just trying to idle. I've discussed this with Rich (Fastmanefi) and he told me that big cam low vacuum is an issue for the EX-EFI ECU. I'm also waiting to read more about the Carlisle give-away HEMI. That's a 572 with dual quad EFI. I heard that it made high 800's HP at 6200 RPM and 700+ torque from 4000-6200 RPM. HP #'s were still climbing but since they used a hydraulic roller, they shut it down at 6200. That motor has the Eddy heads which out of the box, flow as good as my MCH ported Stage V Heads See: http://www.hotrod.com/how-to/engine/1603-win-this-hemi-part-1-the-572ci-short-block/Somebody mentioned COP (Coil On Plug) ... the coils used in the Ford Coyote fit right into my Hemi spark plug tubes and connect to the spark plug. I was thinking of using the Coyote coils sold by AEM along with their "puck" that does crank and cam timing signals. You can pretty easily modify an old distributor to mount the puck and you get a clean solution for 24x crank and 1x cam signal. Then wire all that into the FAST EFI ECU and you're in the 21st century!!
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2088232
06/08/16 10:34 AM
06/08/16 10:34 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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I have the FITech 1200HP unit on my RB. I would steer clear of the command center based on a few things I have seen. Just run an full return EFI fuel system.
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 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2088260
06/08/16 11:43 AM
06/08/16 11:43 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
top fuel
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top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
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Chevy site, and long thread, but he had issues with the vent overflowing with fuel I believe. They don't seem to have a separate vent and return. Surge tanks generally have a return for the low pressure system. Some people have had issues, others have not. I already had EFI capable pumps, so I didn't need anything extra. http://www.chevelles.com/forums/89-efi/8...all-w-pics.html
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 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2089652
06/10/16 02:42 PM
06/10/16 02:42 PM
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Joined: Oct 2006
Posts: 246 Cranberry Twp PA (North of Pit...
rumblefish72
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 246
Cranberry Twp PA (North of Pit...
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Keep us in the loop as your implementation progresses. I want to learn from your experiences.
1972 Pro-Street 'Cuda, 500" Eagle stoker B Block, Eddy RPM heads, Victor Manifold, 850 Mighty Demon, Hemi 4 Speed, Dana 60 w/4.88 gears - Built by Hansen Racing Middlesex - NJ
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Re: FiTech 2x4 go EFI vs 2x4 Edelbrock's
[Re: lockjaw-express]
#2089663
06/10/16 02:58 PM
06/10/16 02:58 PM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Well, after all of the great information, I just finished running my return line to the fuel cell, and decided on the Holley Dominator ECU kit with dual O2 sensor support.
Holley made a good argument for having a dual O2 system, and MPFI.
I will just sell the FiTech FCC on ebay...wont lose any money as they are on back order from Fitech.
Ray Barton also told me that the Holley MPFI was far superior that anything he has installed.
Thanks, Mark
Sounds like the way to go with such a radical engine. I haven't got my FiTech, they are on back order, but it is for a much milder engine. I think large cams with a lot of overlap and intake reversion can upset the MAP sensor, and the software needs to be pretty advanced to handle that (for speed/density), or just use Alpha-N fueling? I'm not sure the FiTech software does Alpha-N?
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