[Firebob]

So before I left Reno today I pulled the trigger on a FAST EFI. All my buddy's have bought the FITech but the fast seemed like a more complete kit to me. I talked to a Summit sales guy about the Holley Sniper but it was like the FITech where everything was extra. I'd be curious if anybody else has used this kit and what they thought of it. It's shipping from Georgia so I won't even get it for 4 or 5 days. Then I will decide whether I'm keeping it or not.

[Lee]

Which system? I've installed two EZ 2.0 systems, one of them on a 455 Pontiac. Both run great. I've also worked on some XFI systems. I'm most likely going to install the FAST Sportsman system on my T/A clone in the near future.

If you are running the 2.0, then I highly urge you to get the FAST Dual Sync distributor. It will plug directly into the EFI harness, and give the ECU the most exact and accurate RPM signal, which will make the system perform even better. The D-S will not only give you full control of initial & total advance, but also the ignition curve, vacuum advance variables, along with the ECU being able to use the timing to smooth out idle and throttle transitions.

If you are using the regular EZ system (not the 2.0), then I urge you to use some sort of ignition box to provide the RPM signal to the ECU. Don't bother trying to use the tach signal from an HEI, even with the filter that FAST provides, you will get sub-par performance. That signal source is just not very accurate.

[HWYSTR455]

That's solid advice Lee, and agree with your points. The FAST EZ-EFI 2.0 is one of the most refined setups out there, has excellent support and features, and the XFI as well. Only reason to choose the XFI over the EZ is if you're doing something like forced induction, multi-port, or both. I know a number of folks with the EZ and they are totally happy with them.

The Sniper IMO was put out there to meet a price point, and compete with offerings like the FITech system. It's not as full featured, and gives very little room to grow or configure. (which I feel is similar to FITech's offering). The Holley Terminator setup is a true setup that offers more control, and the Stealth is a direct competitive offering to the EZ 2.0. Both are priced accordingly too.

You can't go wrong with the EZ, I'm betting your going to be very satisfied with it, and more so over time. Butler has configurations for just about every combo imaginable, so if there's some question if it's right or whatever, you could always talk to them regarding. Not to mention there are a number of pro tuners out there for it.

Personal comment on the EZ, there's no reason to mount the control/display in the passenger compartment! Heh-heh! But you can if you prefer! And get the dual sync.

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[Firebob]

I bought the EZ EFI not the 2.0. Mostly I liked it because the kit seemed to come complete. My buddy's all bought the FITech but then the pump is extra and the plumbing and the dist( if you want timing control.). Of course the EZ is a fairly a basic model too. No timing control. No fan controller. But it gets me the basic benefits of EFI for a low cost and it says good to 650hp which I'll never see so that's good. I think the Holley is only good to 500. I'm probably over that already. I've lived without all that other stuff all this time, I don't think I'll miss not being able to change my timing on the fly. Besides, when would I do that anyway? Set it where it runs best and leave it alone right? Now I just wish I hadn't spent that $170 on that A/F gauge last month.

[Firebob]

So I was just reading on another forum that this system isn't well suited to manual Trans cars, or cars with big cams making less than 10 in of vacuum. Also the poster( who seemed to like the more expensive versions ) said this self learning EFI would not be a good choice for road race cars. He seemed to be saying it was fine for a mild street cruiser but if you run anything with bigger balls then you need the more expensive system and someone was going to have to tune it manually with a laptop.

Now the salesman that i talked with said as long as I had 9-10inches it should work. So I'm thinking it will work but probably not well. Hmm. Sounds like I may be sending it back.

[Lee]

There is a "XFI Street" version of the original EZ EFI that is now available. I think it is only $150 or so more expensive. It does everything the EZ system does, but you can also hook up your laptop and manually tune some of the parameters. That might be the better system for you.

Link to info on the XFI Street: http://performancemediapr.com/_uploa...t%20System.pdf

[Scott65]

I run the original ez efi. I bought one fairly early after their introduction. I've had no issues. I pull between 8 and 9 inches of vacuum at idle in gear. 248/254 @.050 duration, 106 lsa hydraulic roller. The idle is rowdy, but perfectly stable. I also run it at around 53 psi fuel pressure, so the injectors evidently can handle the pulse width in a wide range of applications. The first couple of starts may be less than stellar until it "learns" how to function with the low vacuum, but it will learn. It will be easier probably if you get it going initially in warmer weather, but I was able to do it in cooler (for us here in south Texas) weather. Good luck with your installation.

[Lee]

Originally Posted by Scott65

I run the original ez efi. I bought one fairly early after their introduction. I've had no issues. I pull between 8 and 9 inches of vacuum at idle in gear. 248/254 @.050 duration, 106 lsa hydraulic roller. The idle is rowdy, but perfectly stable. I also run it at around 53 psi fuel pressure, so the injectors evidently can handle the pulse width in a wide range of applications. The first couple of starts may be less than stellar until it "learns" how to function with the low vacuum, but it will learn. It will be easier probably if you get it going initially in warmer weather, but I was able to do it in cooler (for us here in south Texas) weather. Good luck with your installation.

Scott! Did you ever do the dual-quad EFI conversion? That must have been 7 or 8 years ago, when we last talked!

[Scott65]

Yes, I did. And it worked very well. It's actually easier to use two when your making over 500 horse. You can turn the fuel pressure down and have less sensitivity to over fueling injectors at idle. I took the second one off when I found evidence of the notorious porosity in my tunnel ram breaking loose. I've ground most if it out, now I need to get some splash zone, or something and coat it. I'll get around to it eventually, life's been in the way the last few years... Theres actually a pic of it on a thread here somewhere.... If I can find it I'll send u a link.

[Firebob]

Scott, the system you bought was the basic EZ EFI not the 2.0 throttle body? You are the first person I've heard of that it has worked with that type of motor configuration. You give me a spark of hope. Manual or auto trans?

[Scott65]

Robert, yes mine is the original version. Bought November 09 if I remember correctly. Time is a blur sometimes... Auto trans on mine. Follow the directions carefully. Including running the power and ground directly to the battery. Even if it's in the trunk, like mine... As Lee said, use a box that will give a clean tach signal, SUPER important that the rpm signal is clean. Use good practices on the fuel system, including using a big enough fuel pump for the power you're making. I used a Magnafuel Pro tuner efi. Is it overkill for 600 horsepower? Maybe, but I won't starve for fuel. I'm not advocating Magnafuel, just making an example. Don't make a mistake of being borderline on fuel supply. If I can help, I will.

[HWYSTR455]

Tanks Inc does now make the EFI tanks for 1st gen 'birds, it's the best way to go, and least expensive to do it 'right'. They even make one with notched corners for traditional dual exhaust cars.

Walbro in tank pumps are proven, though there are alternatives. It's just nice though to be able to order the tank and pump assembly from the same vendor all at once. Just makes sense.

I did my 2nd gen in '98 or so, using the Accel Gen6 stuff, multiport, and it was a fairly radical cam (in mosts' opinion). Back then, you had to send your intake out for 'properly' install/angled bung installation. But many said I would spend massive amounts of time tuning it, just to get it to run right. Proved that theory wrong. And this was before 'self-tuning' systems.

It can be done on your car and done fairly easily, should be nothing special about your config.

I just looked at the XFI Street stuff, and like the fact that you can order just the ECU to upgrade your EZ-EFI or 2.0 system. Cool.

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[Firebob]

Currently I'm running a 6AL to a billet HEI. They kind of hint around that you should be running some sort of ignition box for these systems to work right. I don't know if they come right out and say it but it seems to be highly recommended. The EZ kit I bought came with an inline pump so I assume it's matched to the throttle body and able to support 650hp like they advertise. That was the biggest reason I bought it because it came with everything. Now if I could buy the XFI street in a kit with everything that's what I will do. Otherwise Scott is the first person to say that it's possible with my configuration. I'm in no hurry. If I need to return this and wait for them to release the Street in a kit then maybe that's what I'll do.

[HWYSTR455]

Yeah, you can buy the XFI Street in a full kit, it's the 304001 kit, using the regular EZ-EFI throttle body. I'm sure you could upgrade to the 2.0 throttle body at time of purchase, but would probably require a call to FAST to get the correct pieces/part numbers.

Looks like it's still kind of new, and complete listings of part numbers aren't published yet.

The Tanks, Inc EFI tanks and pump assemblies are a better solution, and perfectly matched for those systems. I would still suggest going that route than with an external pump. External pumps have a tendency to overheat and fail prematurely. I have seen too many after the fact switching over to the efi tank and in tank pump, just trying to save you some aggravation & money.

I also recommend a bypass/return type fuel system, even though deadhead is support.

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