Yea, a Dominator version.. lol

You're assuming it has bugs.. ;)

Pretty much...until it hits the real world you never know.

Does anyone know what this system retails for?

Edit: 2136.95 from Summit for the full kit. 1700.00+ for the kit less fuel pump and regulator.

Yes you are so RIGHT!!

MY BAD...

Sometimes you just read - and then peck away... (okay don't go there!)

I'm going to use this system on my LS6 install... Will let you all know what I think after I'm done.

Steve,

We have been talking to Casey Wegner about a 415ci LS motor with the EZ EFI on it. He said they have made 600+ with the system on an LS based engine. Any thoughts? Do you think it is the efficiency of the LS over the Big Block that is allowing it to do this?

Well, if you can make a given power level at a lower RPM then it will require less air.

Our test was on a 454 big block and it made less power with the EFI than it did with a larger (1000 or 950 CFM) carb. It was when we moved down to a 750 cfm carb that we got similar dyno numbers. It was down about 30 horsepower, not a hugh amount.

And yea, I think the efficiency of the LS helps. In our case the big-block made something like 502 hp and 535 tq.. on another engine, like an LS, it might make more. But, it can only move so much air. I need to ask FAST what CFM the throttle body is rated at. Going by the dyno data the fuel was fine, it (in our application) was just running out of air.

I would like to see your data and talk with you about the LS install. Email me at [email protected]

But the math says it can only support so much HP based on only having four injectors. Oh, our test was ran at a fuel pressure of 45 lbs.

Again, it's a great, easy to install system that covers a huge percentage of the engines out there, but if you are building an all out race engine you really need to step up to one of FASTs bigger systems.

Chad ---

Wegner has got to have some pretty good techs there... I'm thinking there are at least two mathematical issues here:

1: The flow rate of the injectors... you need "X" amount of fuel to support "X" amount of HP...

2: Air flow of the throttle body... again - "X" amount of cubic inches has to flow through this "restrictor" - no?

So I'm wondering -- since HP is only a mathematical equation based on TQ -- if the TQ number was good -- and the RPMS are through the roof - then maybe the actual math might be supported to make a bit more than their saying in their Ads?? They (they being FAST) most likely don't want to be responsible for guys going lean and wasting their brand new pride and joy...

Thanks Steve. E-mail sent.

I agree Greg. From talking with Casey Wegner, they definitely know what they are doing. I also know of them from my circle track days. I think there is more coming in this line of products from FAST. When I talked to their tech line they said that the next 90 days would show more. My problem is I have been offered a deal that is time sensative and I am not sure wether to pull the trigger or not.

I helped a friend install one on his 70 Cuda with a 5.7L Hemi in it. Great stuff very easy to install and run. Oh for the mopar guys running the Gen III hemi you need to have the MSD ignition stuff as well.

Would this unit work for a blow thru set up?? I know you can make TONS of power with a 750cfm carb on blow thru so I would guess as long as you had enough fuel the air flow would be fine??

probably not. You'll be limited by injector size; if it can only support 650 hp naturally aspirated it'd support even less as forced induction due to the richer a/f required for forced induction.



Jody

Not only that, but I don't think it support it in terms of air. In our tests we ran out of air before we ran out of fuel.

yeah, that's more of an issue n/a, with forced induction you'd run out of fuel way before the airflow was an issue.

Jody

Thanks Jody!

Can this system be used with an rpm air gap? I see single plane used with all the efi set ups

Any 4150 style intake. In other words square bore 4-bbl intake. Hope that helps.

I have the EZ EFI set up on the LS1 in my 67 Firebird and I like it. I love the way the Vic jr's look on the LS1's so I was able to get that look and still have EFI so it was a win/win for me!

http://i281.photobucket.com/albums/k...irebird060.jpg

Winston Cup Cars
 

This may be the system that NASCAR will use in 2011.

Will there be some refinements ?

I hope so !

still not clear on whether or not this system needs a proper FI fuel tank with an onboard fuel pump. The way they SELL it on their website, it doesn't seem like you do, but from all that I have read, sounds like a must. That pretty much takes away from a "bolt on" selling point........even though a fuel tank does "bolt on". :rolleyes:

Well -- The big fuel pump discussion here - had more to do with the GIANT fuel pumps the guys with the twin turbo 800+ HP motors... and the fact that they are / were pumping huge amounts of fuel on a continuous basis... pumping the same amount of fuel even when "cruising" and stop and go traffic etc.

I've been running an EXTERNAL fuel pump on a 25 gallon Rock Valley tank for almost 5 years now - without any issue. My motor is more "normal" and I'm not running the super mondo 1000 gph pump etc.

Just my .02 worth

I am going to follow Jody's advice and bypass back at the tank. I am running an A1000 (externally mounted / using a Rick's tank) and will probably use the Aeromotive PWM controller, although I have heard of a couple of failures which is a bit concerning.

Rob --

I liked the system that Professional Products was using for their controller... they were using a vacuum reference and a pressure sender rather than a tach reference for slowing the pump when lots of fuel wasn't needed. I talked to them at length and it made total sense to me.

Their point was that the Aeromotive controller used a tach reference -- but there are times when you have a "low" tach reading but might need lots of fuel - such as climbing a long grade.. in a higher gear. The Pro system used the two senders - vacuum (think open throttle) and pressure - to maintain pressure at all times. Weldon also makes a "programable" PWM controller.

We also discussed fuel pumps and the two guys that were in the booth at SEMA liked the Mallory geroter over any of the others or styles.

Something that we kind of "forget" about when using these high volume - high pressure pumps.... FUEL "boils" easier at high pressure - the exact opposite of water under pressure... so the more pressure we make the easier it is to get the fuel aerated... add some heat from the fuel rails - and the heat the pump makes in making pressure - some road heat in stop and go traffic and the next thing you know - you've got some fuel problems.

Mark has done a ton of work on this... and certainly knows what he's talking about. My big question on this subject though is - if you're running some "normal" horsepower... and a smaller than maximum pump (not the Aeromotive A1000 for example) then is this still an issue?

I also run SS hard line from the tank (well - except for some FTE braided for flexing) and for the return as well... and I wonder if this doesn't help dissipate the heat?

Just for what it's worth...

CORRECTION -- it was RETROTEK that has this fuel controller system....

I remember now too - that they made another point about their system. You didn't need a return line - because they ran the pump just enough to fuel the engine rather than just flowing fuel as fast as the pump could run...

NASCAR Fuel Pump
 

Would you consider a NASCAR fuel pump ?

They can be sized for the correct volume with the price equal to a big Aeromotive/dual pumps.

These pumps produce no heat except for the compression of the fuel.

When you choose a fuel pump, do an INSPECTION inside of the pump, most would be surprised.

My pump features a sealed, smooth armature (no windings visible), speed balanced, greater pole count
with 2x the brush area of the common "brand name" pump.
Many OEM pumps also have these features.

Lance

This is what i do for a livng build huge horsepower daily driven efi cars.

I personaly have over 5 years and 70 thousand miles on a fuel system that will suport 1000 horsepower without any tricks and i have literaly over 75 customers runing the same system in their cars.

its very simple. and very quiet and cheaper then any of the big pump stuff.

Just take two external bosh 255 efi pumps run a -6 line to a y then -6 to them and then -6 back to a second y then a single -8 feed to the front and a -6 return using any return style efi regulator.

its as reliable as any stock fuel system as they are stock type bosh pumps meant for continual use over years of duty service.

its when peoeple try to use the big race only aftermarket fuel pumps that were meant for low duration use that the problem comes in.

Not to doubt you -- but your post leaves me wondering....

Walbro makes a "255" pump -- not Bosh.

BOSCH has an equivalent pump. It's an O44....

Just installed one on a 69 Camaro. The computer took a crap before I was able to even fire the car. FAST said they had a prob with some of the computers. Recieved the new one and was not able to get fuel to the injectors, ends up there wiring harness pig tail that hooks to the fuel pump was wired backwards, not to happy with that, but I will let you know more when I drive it some more.

Yep -- Let's ship some more of our manufacturing to... where? China? Taiwan?

Damn, that is disappointing. Keep us posted. I hate having to get 2 or 3 of something before you get a good one. It makes you wonder............... Do they do any quality checks. For a part of this cost and the relatively low volume compared to other electronics I would think they could afford to do 100% inspection. Even more so if it is being made in a low(er) labor cost country.

Does the style of intake effect the drivabilty of this system, or does the electronics take over? The dual plane intakes are suppose to be for low end/street use single plane for higher rpms. Does this system even care what type of intake is used?

So we got the Camaro up and going. We had some issues with the system initially, computer took a crap before it was even fired, the supplied fuel pump took a dump after 20 miles. Wasn't to happy at first but it seems to work well now. The car is sporting a 406sbc, big heads, victor intake, big cam, 3500 converter. The car seems to like the set up well. It does seem to get better the more we drive the car, the computer does learn. There is no spits, sputters, or flat spots with the car and it blows the tires off through all gears. I would recomend upgrading the fuel pump from the supplied one to a better quality aftermarket pump or Ricks tank with with an in tank pump. So yeah... it works pretty good.

if your over 600hp fast makes an upgrade kit for dual throttle bodies up to 1200 hp

http://www.compperformancegroupstore...stemEZIEFIKits

Dual Quad Option for 1100hp

*Dual Quad Upgrade Kit must be used in conjunction with an original FAST™ EZ-EFI® Self Tuning Fuel Injection Kit, part #30226-KIT or #30227-KIT.

• Easy-to-use setup Wizard provides comprehensive walk-through and system tunes itself

• Base EZ-EFI® System includes ECU, wide-band oxygen sensor, wiring harness, injectors, throttle body and optional fuel pump kit

• Dual Quad upgrade Kit includes second throttle body, injectors and linkage kit

• Bolts on to ANY engine up to 1000+ hp; ideal for hot rodders looking to increase fuel capacity


http://www.compperformancegroupstore...304155_600.jpg

Can anyone recommend a good quality dual quad intake for this set-up?

I was looking at this

http://www.jegs.com/i/Edelbrock/350/7520/10002/-1

Edelbrock Air-Gap Dual-Quad Manifolds feature an award-winning design that incorporates the same race-winning technology that's been used in the Victor Series competition intakes for years. The air-gap design features an open air space that separates the runners from the hot engine oil resulting in a cooler, denser charge for more power. RPM Air-Gap manifolds are modeled after Performer RPM intakes for high performance street power from 1500-to-6500 rpm.


http://www.jegs.com/images/photos/3507520.jpg

That's probably about as good as it gets.

Next step up would be a tunnel ram.

For folks interested in this FAST EZ EFI or any other FAST product, I am offering 10% off of Summits advertised pricing plus free shipping.

Mike Norris

Fast
 

Hmm.. If I could only find someone to help tune a Fast XFI??

You Asked for it Steve.................

Check this out boys, Group Purchase in effect

Details here

https://lateral-g.net/forums/show...508#post269508