F.A.S.T EZI Good/Bad? anyone?

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marksmopar1

marksmopar1

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Hi
I am looking at F.A.S.T EZI fuel injection bolt on. Anyone have any experience with this system? The good the bad or ugly?
Its expensive but I have a chance to buy a very little used set up.
Carb is cheaper to run for the amount I drive the car, but ya gotta love EFI!
Thanks!:burnout:
 
I have the FAST set-up for my hemi swap but its not running yet. I did a bunch of looking into the EZ EFI stuff before I went hemi... I read nothing but good things about the system. Better milage, throttle response, stronger mid-range seemed to be the most common reports. there are a few guys running the system on FABO I think, did you search it?

JOE
 
joeboy
Thanks, I did look around but thought I would ask the faithful on this site regarding experiences with use on our Mopar engines.
I agree, looks like a simple and user friendly system. The expense is my issue as a carb is way cheaper and the car really isn't seeing a lot of miles in a year.
Maybe this thread will open some discussion, if a thread is out there already?
Thanks again...... Hemi you say! NICE!
 
I've been toying with converting my stroker , after reading the actual install manuals for Holley , Edelbrock and FAST , it looks to me like Holley has the best system for Mopar applications , But thats for TBI setups , Eddy has the ProFlo2 for multiport , the main differences for our motors is the type of ignition system you are using ie dizzy , coil etc , the type of fuel system you have /want to use and the type of self tuning you want the system to be capable of . Holley has the simplest install with some of the sensors needed for all three systems built into throttle body itself and a simple solution for several different ignition setups , including timing control for small cap Gm HEI which has been talked about here on FABO by several members , one of those members even offers GM HEI conversion setups that may fit the bill for this application . I would strongly recommend you do as I have and download the actual install manual PDF for the system you are thinking of using , this will tell you what it will and won't work with unlike the sales info that makes it seem like it will install itself on anything just open the box and watch it go .
 
marksmopar1 said:
Hi
I am looking at F.A.S.T EZI fuel injection bolt on. Anyone have any experience with this system? The good the bad or ugly?
Its expensive but I have a chance to buy a very little used set up.
Carb is cheaper to run for the amount I drive the car, but ya gotta love EFI!
Thanks!:burnout:
Click to expand...

JMO holley is a better system. The FAST is too limited.
 
joeboy said:
Better milage, throttle response, stronger mid-range seemed to be the most common reports.

JOE
Click to expand...


No doubt all coming from Holley's. Spread bore hits like, or better than EFI any day of the week, gotta tune either way. Computer, or your hands? Your choice.

If you got the money, spend it. EFI conversions are one of those things.
 
EFI gives you better response over the full range where carbs are a trade off when tuning , that and way better idle and response in fluctuating weather conditions , if you lived in a climate controlled bubble you might get close to consistancy of EFI with a spread bore .Most of us don't want to re jet and re tune our carb every time we go to the corner store so we accept the trade off .
 
Here's the best reason that I can explain why I chose to go EFI. I live about 10 miles inland from Puget Sound, at about 100' elevation. One of my favorite weekend drives is about a 2.5 to 3 hour drive over the North Cascades Highway to a little town called Winthrop for lunch. Now my house, at roughly 100' above sea level in western washington is in a fairly humid area. Heading over the North Cross, I'm going to hit 5800' of elevation and then I'll get to Winthrop which is somewhere less than 1000' of elevation but more importantly, that air is as dry as a bone and probably about 20* warmer than where I left. I like the fact that I don't need to tune a compromise of all those conditions, I can just get in and drive.
 
12valve said:
Here's the best reason that I can explain why I chose to go EFI. I live about 10 miles inland from Puget Sound, at about 100' elevation. One of my favorite weekend drives is about a 2.5 to 3 hour drive over the North Cascades Highway to a little town called Winthrop for lunch. Now my house, at roughly 100' above sea level in western washington is in a fairly humid area. Heading over the North Cross, I'm going to hit 5800' of elevation and then I'll get to Winthrop which is somewhere less than 1000' of elevation but more importantly, that air is as dry as a bone and probably about 20* warmer than where I left. I like the fact that I don't need to tune a compromise of all those conditions, I can just get in and drive.
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bingo! i don't care how good someone is with a carb there is no way they can account for something like that. hell even without all the elevation changes this time of year i can go from 30* in the morning to 50 in the afternoon. hard to tune for that. efi makes all those adjustments in a fraction of a second..
 
I have to admit, Joe, I've taken a complete turnaround on my thinking. If I was younger, and had the time and energy to "play" I would absolutely be playing with stuff like Megasquirt

The big reasons I went from carb to EFI..............Alcoholized fuel and vapor lock problems

The big reason I went from the Holley Commander to the Holley HP........."self tuning".........I don't have a lot of money to spend on dyno time, and figured I would change from the 318 to the 360, and even though I might play with turbos. So the setup "would" change, and that would mean paying a tuner more money.
 
I so want to pull the trigger on the Holley Terminator setup but the Scottsman in me won`t let it happen , the prices are just too crazy , 2500 for the base kit here plus 600 for the Aeromotive pump set up , and 300 for the 6al msd box -no point keeping the mopar setup at that point eh lol ! plus what ever the cost to convert to the GM small cap HEI so you can have timing control as well , add sales tax and your in for over 4k easy , no way to justify it until they get more realistic with the prices .
 
I picked up my FAST EZ off of eBay for $800, bought a new fuel tank for $135, spent $20 on some steel to make my own sump, I spent another $100 on fuel lines and fittings, and another $90 on a walbro in tank pump. Add in some misc stuff that I forgot and I'm in to mine for under $1500. Be patient, set a price your willing to pay and have that cash handy. Cruise Craigslist, racingjunk, eBay, google, whatever, and when you find a deal you gotta move on it. Sometimes you just get lucky, I bought mine 12 minutes after it was listed
 
12valve said:
I picked up my FAST EZ off of eBay for $800, bought a new fuel tank for $135, spent $20 on some steel to make my own sump, I spent another $100 on fuel lines and fittings, and another $90 on a walbro in tank pump. Add in some misc stuff that I forgot and I'm in to mine for under $1500. Be patient, set a price your willing to pay and have that cash handy. Cruise Craigslist, racingjunk, eBay, google, whatever, and when you find a deal you gotta move on it. Sometimes you just get lucky, I bought mine 12 minutes after it was listed
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Exactly where I am at with this ,but I don't weld so making my own tank set up isn't going to happen , I also have to factor in the exchange rate on the money now that our government has bent over and devalued our dollar again . I keep hoping to find a junker that was converted prior to becoming junk , good luck with that one eh ! lol
 
Hey, if you've got the coin why not, the way I see it is, yeah it's nice to have something tune for you, but is it $1500-2000 nice? Just like overdrive you pay for the luxury, not the return.
 
FAST EZ is quite expensive, and that only gets you throttle-body injection (TBI), which was archaic in production cars 15 years ago. Much better than a carb, but you can do even better with multi-port injection (MPFI), at least for mileage and lower emissions. None of the after-market is cheap enough for the benefits, in my opinion. Much cheaper if you roll-your-own from production parts or buy 2nd hand, often new from guys who planned to, but didn't follow thru.
 
I could build you a romping MS3 for half that and you would get MPFI and forced induction capability. And thats even getting you an EFI manifold, #40 injectors and fuel rail. But I would let you source the parts. I got my Pro-Flo1 for $500 complete minus cheap fuel pump off Ebay open box. My MS2 cost me $120. Im not a fan of 'modern' TBI retrofits, its a step back to 1984 with a wet manifold.
 
Ya but Pista, just like those who are thinking they "must" have sequential, there are some REAL rompin stompin "wet" systems. Some of the newer race systems are "wet" they are "fogged" in through the inlets from outside the injector throats. I think a lot of the problems with the earlier TBI systems were not so much whether they were TBI but the sensor and controls systems.

The other thing you MUST keep in mind is "gains for the buck."

Just about any EFI is better than a carb (unless it's maybe the old Holly pro jection LOL)

engine.jpg
 
67Dart273 said:
Ya but Pista, just like those who are thinking they "must" have sequential, there are some REAL rompin stompin "wet" systems. Some of the newer race systems are "wet" they are "fogged" in through the inlets from outside the injector throats. I think a lot of the problems with the earlier TBI systems were not so much whether they were TBI but the sensor and controls systems.

The other thing you MUST keep in mind is "gains for the buck."

Just about any EFI is better than a carb (unless it's maybe the old Holly pro jection LOL)

engine.jpg
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if your up there in h.p., better rethink some of these posts, fast has a 1200 h.p. capability, self tuning set up, w/ only one sensor that is not in the throttle body. it also has ----eight injectors in side it!! can run diff. types of fuel in it also. real short distributor has clearance problems on a r/ b, w/ raised port alum.heads, but can be done-----bob
 
Bob, 1200 HP support only means the injectors are 8 X ~94lb/hr. My $120 MS2 can do that. Self tuning? MS2 again for another $50 Tunerstudio add on. Different fuels? Any MS can do, just put in a 1.3X duty cycle multiplier for E85. Fogging an intake does little under 6000 RPM. Of course an idle on 8 94lb injectors is freakin crazy low duty cycle unless it drops it down to 1 injector. 1 external sensor is probably just MAP and it uses Alpha-N (TPS and RPM from distributor are other 'inputs') Im sure FAST is good, its just overpriced and I doubt that Alpha-N FAST 1200hp model is streetable.
 
pishta said:
Bob, 1200 HP support only means the injectors are 8 X ~94lb/hr. My $120 MS2 can do that. Self tuning? MS2 again for another $50 Tunerstudio add on. Different fuels? Any MS can do, just put in a 1.3X duty cycle multiplier for E85. Fogging an intake does little under 6000 RPM. Of course an idle on 8 94lb injectors is freakin crazy low duty cycle unless it drops it down to 1 injector. 1 external sensor is probably just MAP and it uses Alpha-N (TPS and RPM from distributor are other 'inputs') Im sure FAST is good, its just overpriced and I doubt that Alpha-N FAST 1200hp model is streetable.
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Do you have a source for more info on this MS3 setup your referring to ? after reading the install and setup manual for the FAST system I learned they handle low rpm , low duty cycle by alternate firing the injectors in groups of 4 . So far the Holley terminator seems like the best of all worlds since the setup is ready to convert to multi port right out of the box .
 
cannucky said:
Do you have a source for more info on this MS3 setup your referring to ? after reading the install and setup manual for the FAST system I learned they handle low rpm , low duty cycle by alternate firing the injectors in groups of 4 . So far the Holley terminator seems like the best of all worlds since the setup is ready to convert to multi port right out of the box .
Click to expand...


http://www.diyautotune.com/catalog/megasquirt-iii-c-76.html

http://www.megamanual.com/index.html
 
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