Thoughts on the FAST Ez-EFI system??

[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.

[GregWeld]

Chad -- Glad to see someone finally gets the point I've been trying to make... that for MANY folks -- these new self tuning systems work just "fine". They're not for every stinking motor ever built -- but with some planning with the engine builder - the motor can be built to be EFI friendly... and if you're not looking for every last one tenth of one percent horse power these systems fire up - starting running - and in a matter of 50 miles of driving they're tuned and ready to go. Then they keep getting better and better.

The sooner the "tuners/installers" out there embrace these - the sooner the stories become POSITIVE EXPERIENCES with EFI... rather than the HORROR STORIES I hear every time I go somewhere...

But, people have to learn the ins and outs of EFI vs just slapping it on any old motor and hoping for the best... But that's a whole different discussion.

Originally Posted by ccracin

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 621hp and 550ft# 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.

[fleet]

Originally Posted by GregWeld

Chad -- Glad to see someone finally gets the point I've been trying to make... that for MANY folks -- these new self tuning systems work just "fine". They're not for every stinking motor ever built -- but with some planning with the engine builder - the motor can be built to be EFI friendly... and if you're not looking for every last one tenth of one percent horse power these systems fire up - starting running - and in a matter of 50 miles of driving they're tuned and ready to go. Then they keep getting better and better.

The sooner the "tuners/installers" out there embrace these - the sooner the stories become POSITIVE EXPERIENCES with EFI... rather than the HORROR STORIES I hear every time I go somewhere...

But, people have to learn the ins and outs of EFI vs just slapping it on any old motor and hoping for the best... But that's a whole different discussion.

Very informative post Herr Veld.

[Vegas69]

Last time I checked, factory cars self tune after initial calibration.