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FiTech 1200HP Unit Update

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spiritdude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote spiritdude Quote  Post ReplyReply Direct Link To This Post Posted: Aug/17/2017 at 9:02pm
My car is 4.5 to 5 mpg if I keep my foot out of it and goes down from there. The way I see it, one doesn't own an AMX or any other performance AMC to look for mileage. It is all about the power!
spiritdude
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Red20 Quote  Post ReplyReply Direct Link To This Post Posted: Aug/18/2017 at 1:00am
Whew! I'm talking to the wrong crowd. I'm just trying to have a car that runs 12s and gets 12 mpg while being a daily driver. I get about 9-10 mpg now. You're on an entirely different level!
1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER
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Post Options Post Options   Thanks (0) Thanks(0)   Quote shootist Quote  Post ReplyReply Direct Link To This Post Posted: Aug/18/2017 at 10:35am
Well, you just don't want to know my MPG then. Especially under throttle. I stopped measuring as MPG and started mearuing in GPM (gallons/minute) I can get about 100 miles on 15 gallons if I don't thrash on it too hard. I may be able to get 150 if I am really easy but with boost it is impossible to baby it unless cruising the interstate and I don't take it on long cruises down the interstate because it only runs on E85 and availability can be problematic. I guess I need a chase car to haul fuel or a couple jerry cans strapped to the back like mad max. If I drive it hard I get about 3 MPG. I was floored when I put the FiTech fuel flow on the gauge dashboard of the controller and watched the flow rate at WOT.
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spiritdude View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote spiritdude Quote  Post ReplyReply Direct Link To This Post Posted: Aug/18/2017 at 8:24pm
Shootist I feel you man. I have 15 gallon capacity and sport a 75 mile range. I don't have boost or FI so I keep expectations down. What is killing me is the loose torque convertor and 4:11 gear.
spiritdude
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RumblinFx4 Quote  Post ReplyReply Direct Link To This Post Posted: Aug/21/2017 at 1:29pm
Just filled up last night looks like I'm pulling off 8mpg and still wouldn't go back to carb!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Aug/21/2017 at 1:41pm
Originally posted by spiritdude spiritdude wrote:

Shootist I feel you man. I have 15 gallon capacity and sport a 75 mile range. I don't have boost or FI so I keep expectations down. What is killing me is the loose torque convertor and 4:11 gear.
spiritdude


Ouch, today's crummy gas and a 15 gallon tank... that's rough on plans for a good trip away. Don't bother I80 through Nebraska.

I am glad the Hornet wagon 22 gallon tank can be swapped out.

With Shootist setup no matter what sized tank that would fit, I'd have a hard time with gas milage. Mwhahahahahahahahahaha!

71 Javelin SST body
390 69 crank, 70 block & heads
NASCAR SB2 rods & pistons
78 Jeep TH400 w/ 2.76 Low
50/50 Ford-AMC Suspension
79 F150 rear & 8.8 axles
Ford Racing 3.25 gears & 9" /w Detroit locker
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matty 401 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote matty 401 Quote  Post ReplyReply Direct Link To This Post Posted: Aug/21/2017 at 8:11pm
so is everybody running E85  with the fitech system 
72 matador 401 the beast
79 concord 2 door
72 matador 304 grasshopper
68 Rogue 406
93 Cherokee 4.0 5 speed

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Steeno Quote  Post ReplyReply Direct Link To This Post Posted: Aug/22/2017 at 9:53am
No E85 for me with my Fitech 600HP power adder set up (only four injectors on this model, to Shootist's 8). So far, 1000 miles into a fresh rebuild on my 401 I seem to be running between 11 to 15 mpg. It might improve slightly with time. With 3.73 gears, and a 0.62 overdrive I'm running 2200 rpm at 75 mph. The hornet I have has the 22 gallon tank. Hoping to do longer trips once everything is dialed in. I'm digging the idle quality, easy starts, and the constant info from the EFI.
77 Hornet Hatchback 401 four speed.
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shootist View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote shootist Quote  Post ReplyReply Direct Link To This Post Posted: Aug/22/2017 at 3:17pm
Hey I do have to give an update. to my previous post. I actually checked my mileage now since changing to the TKO 5 speed with .63 OD. I am really shocked, I managed to get an amazing 8.5-9MPG!!! That is approaching Prius mileage. Ok maybe that is a bit overstated but cranking out the power I am and running E85 on top of that. I very pleased and seeing huge improvement over the 727. I am back to milage I got with the 360 and carb with 727 running gas. Oh, and that estimate was for a 42.2 mile in town trip with a few frisky interractions with the long skinny pedal. So if I took all things into consideration I would guess that I am seeing about 20-25% better fuel economy with a combination of the OD and FiTech. I can't say which one accounts for more (probably the OD) but not bad numbers all things considered my comparison is supercharged 401 running E85 getting the same economy as the previous 360 running gas.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote spiritdude Quote  Post ReplyReply Direct Link To This Post Posted: Aug/23/2017 at 7:49pm
Originally posted by shootist shootist wrote:

Hey I do have to give an update. to my previous post. I actually checked my mileage now since changing to the TKO 5 speed with .63 OD. I am really shocked, I managed to get an amazing 8.5-9MPG!!! That is approaching Prius mileage. Ok maybe that is a bit overstated but cranking out the power I am and running E85 on top of that. I very pleased and seeing huge improvement over the 727. I am back to milage I got with the 360 and carb with 727 running gas. Oh, and that estimate was for a 42.2 mile in town trip with a few frisky interractions with the long skinny pedal. So if I took all things into consideration I would guess that I am seeing about 20-25% better fuel economy with a combination of the OD and FiTech. I can't say which one accounts for more (probably the OD) but not bad numbers all things considered my comparison is supercharged 401 running E85 getting the same economy as the previous 360 running gas.

That is great! You are getting most if from the 5 speed I suspect. If I could get 8.5-9mpg, I could make it to Orlando and drive mine to the track.
spiritdude
1982 Spirit-10.865 @123.16mph
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