Thoughts on the FAST Ez-EFI system??

[supremeefi]

Originally Posted by camcojb

mine did too. With a .650 lift [email protected] solid roller you could let the clutch out in first gear at 900 rpm idle speed and even without touching the throttle it was smooth as silk. No jumping back and forth in gear at that low of an engine speed. And there's pretty much nothing that looks as cool as an IR setup.

I agree, I did a 427 windsor Ford, made 621 hp with 9.0:1 compression and an 8 stack, had 535lbft of torque at 3500rpm.

Being able to adjust timing helps a bunch. But I don't agree that you need a dyno, it's nice but not absolutely necessary imo.
And I know Greg had a bad experience but I do cals via the internet all the time, it makes a difference if you know what you're doing.

[GregWeld]

Originally Posted by supremeefi

I agree, I did a 427 windsor Ford, made 621 hp with 9.0:1 compression and an 8 stack, had 535lbft of torque at 3500rpm.

Being able to adjust timing helps a bunch. But I don't agree that you need a dyno, it's nice but not absolutely necessary imo.
And I know Greg had a bad experience but I do cals via the internet all the time, it makes a difference if you know what you're doing.

Back when I first starting doing this -- there was no internet!




I agree that you can tune via emailing files.

[ks71z28]

They can be made to run well, but the drivability can be a bit fussy. Plumbing in a vacuum port to each cylinder is important to run a IAC, and also equal out the tip in throttle. 8 blades can be tough to sync at all throttle positions. We run tripple Solex carbs on our GT-2 240z, but that car always sees at least 1/2 throttle at all times!

[GregWeld]

Inglese's new(er) cast manifold for Small Block Chevys has a huge cast in plenum in the valley area... so vacuum is "plumbing free"... and the large volume smoothes out the pulses.

I run NO IAC on either of my motors... no need for it.

[shaun8541]

Originally Posted by supremeefi

I agree, I did a 427 windsor Ford, made 621 hp with 9.0:1 compression and an 8 stack, had 535lbft of torque at 3500rpm.

Being able to adjust timing helps a bunch. But I don't agree that you need a dyno, it's nice but not absolutely necessary imo.
And I know Greg had a bad experience but I do cals via the internet all the time, it makes a difference if you know what you're doing.

Did you do that 427 with the EZ EFI or the XFI?

[supremeefi]

Originally Posted by shaun8541

Did you do that 427 with the EZ EFI or the XFI?

Neither one, Accel Gen 7.
That's why I mentioned what I did. The XFI can't tailor the individual cylinder trim by load/rpm. It's an all or nothing calibration with the XFI and doesn't exist at all on the EZ.

Compos, thank you for the comment, I think

Yes there are too many mediocre tuners out there, with every make of system. I know I've run across too many.
And yes I do gaurantee my tuning. But I ask all the right questions about the application BEFORE I sell anybody anything. And I'm not concerned about not making any money on the self tuning stuff, it's not my primary source of income anyway. If you look closely at the software there are better and average systems around.

But the nice thing about some of the better systems out there is that they will help an otherwise ill advised combination to some degree, i.e. another 427 Ford I did with a 249/[email protected] on a 110 hyd roller cam. It came to me with a Mass AirFlo system, self tuning right? Ran like crap, even after 3 chip changes and sending the ECM back twice. After swapping to a non self learning system, it idles at 750 rpm all day and runs great.

[GregWeld]

Originally Posted by supremeefi

I ask all the right questions about the application BEFORE I sell anybody anything. And I'm not concerned about not making any money on the self tuning stuff, it's not my primary source of income anyway.

That is what most of the sales / tuner guys DON'T do.... they just sell or install and think they can figure it all out... SO KUDOS TO YOU MARK!

[supremeefi]

Thanks Greg, I try.

[Coursey]

I was trying to think of a "clean" option to run my fuel lines.

Is it a bad idea to mount the regulator on the firewall between the distributer and coolant lines. Then run the fuel lines down behind the motor and on top of the trans. The lines would then run down the center of the car like the factory line is ran.

[ccracin]

Originally Posted by supremeefi

I agree, I did a 427 windsor Ford, made 621 hp with 9.0:1 compression and an 8 stack, had 535lbft of torque at 3500rpm.

Being able to adjust timing helps a bunch. But I don't agree that you need a dyno, it's nice but not absolutely necessary imo.
And I know Greg had a bad experience but I do cals via the internet all the time, it makes a difference if you know what you're doing.

With all do respect, I'll bet everyone that had their car tuned either on a dyno or via the internet and had problems had a tuner that said "No Problem, I know what I'm doing". Then they were told their cam didn't match their heads or the distributor wasn't right. That's the one I like, the cam doesn't match the heads, so your car won't move under it's own power. Yet it drove into the dyno session. See my point? The problem is, how many hundreds and thousands of dollars does a guy have to spend to get the guy that DOES know what he is doing? I'm sure you are excellent at what you do, do you offer a guarantee? That was the reason we went with the EZ-EFI. It made 614hp and 544ft# on an LS415. We will see about drivability. However, it comes recommended from Wegner Automotive, and their resume is also very impressive. Are there limitations to it, yes. Will it do what we want, yes. I know you can not endorse self learning EFI systems as that would take money out of your pocket, but for the people that read these forums and never get involved in the discussions, I think it is necessary to be objective and give all the pros and cons. For what it's worth, if I do get into a build where we need more complex EFI control I would feel comfortable working with you from what I have read here.