SoundPerformance

Part 1:

http://www.youtube.com/user/Professi.../1/7P9874GRMmc

Part 2:

http://www.youtube.com/user/Professi.../0/kToek26wbXg
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Note: You must have a ProEFI 128 for knock control!!

midz350

iTrader: (4)

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Videos not working.

rcdash

iTrader: (18)

What? Has this always been the case? Isn't nearly the entire installed base for the ProEFI on the Z/G platform on the 48 units?

str8dum1

iTrader: (11)

kinda like you need 500$+ worth of sensors to make the 48pin unit do that neat E85 fuel monitoring.

I would guess that all the 48 pin guys already knew they couldnt actively control knock though. Haltech doesnt do active knock control either, correct? Funny how that 700$ UTEC is the only EMS under 2500$ with active knock control.

SoundPerformance

No, the only difference on the 48 box for flex fuel is the $199 unit that converts the frequency output to the analog output.

SoundPerformance

Yes, it has always been the case. 48 units do not have knock inputs, never have had them.

For what the 128 system costs, (starts at $2500ish) no other system offers anywhere near the features. Hell a motec system gets you for an additional $2500 to add knock control!! And theirs is NO WHERE near as sophisticated as the ProEFI. Combine this with trac control, boost control, adaptive learning, launch control, meth control etc and the ProEFI 128 is a bargain. Every supra system that I sell is a 128 unit!!

hellsoldiers08

iTrader: (3)

dude. video links not working :0(

SoundPerformance

Try it now, weird as that link worked yesterday!! Sorry!

rcdash

iTrader: (18)

Hey man, I need to teach you about your own EMS! It takes time on a DD dyno to tune this properly so make sure you get Sharif to do it...

rcdash

iTrader: (18)

That's interesting considering how much knock control was hyped up in the original discussion thread. The only contention I've ever had with the ProEFI has been the deceptive marketing practices (whether it was intentional or unintentional). I wonder how many current ProEFI 48 users knew that the unit never even had knock detection, let alone control? Why couldn't all the ProEFI discussion clearly separate the features of the 128 and the features of the 48 units so that the consumer could make an informed choice? Elaborating on the features of the 128 unit and then promoting the 48 unit because of its low price is just wrong.

str8dum1

iTrader: (11)

i knew it monitored the knock sensor....
excellent!

I forgot that any non-flex fuel car would need that 370$ sender, my bad...

We know you sell 128's for the Supra's, so how come its not the one getting sold majorly for the VQ's since its has alot of critical functionality.

SoundPerformance

I really do not know exactly why the 48 unit was pushed more than the 128 for the Z. I suspect it was a pricing thing. It seems that the Z guys freak out when you tell them an EMS system is $2800 and the supra guys dont. Maybe they are just used to paying alot for things!! That combined with the fact that supra guys can add the proefi system by itself to their already turbocharged car while the Z guys are adding it to a build of engine, fuel turbo kit etc. If that makes any sense!!

Other than knock control, the only other thing you really can't do with the 48 unit is the wheel speed traction control although it will be able to as soon as Jason gets the can input to read off the factory can signal.

No other EMS's out there have knock control that is anywhere near the sophistication of the ProEFI. Most are just noise monitors with no frequency or time based monitoring at all. Systems like that (AEM, Haltech etc) without frequency filtering, have too much background noise to see small or moderate amounts of knock at all. And any loud drivetrain noise can set them off as knock too.

I really like knock control when it works as it should. Unfortunately other than the Motec and the ProEFI systems, none of the knock control out there is very good at all. For those systems always tune on the conservative side!!

rcdash

iTrader: (18)

The 128 unit is nicely matched for the Z/G - no question about it. All the marketing "irregularities" aside, the videos are excellent and informative and the 128 unit does really look impressive. Thanks for sharing.

Your comment about tuning conservative for "those systems" with "noise control" rather than true knock control is a bit off target though since even Jason said you should NOT tune to the point of knock and you should NOT rely on the ProEFI's knock control to allow that practice (since knock has to occur in order for it to be detected and damage may occur regardless of the EMS attempts to mitigate it).

What can the end user tuning software adjust for knock control? It comes ready for the stock VQ engine? I guess I should ask first, does the end user software work for the 128?

1ZweetZ

What is your deal? Are you incapable of going on ProEFI's website and READING the feature list that is there for BILLIONS of people to read? When you pull out the Sunday paper and look through the ad's, what is listed in the ad's? The most expensive fully loaded stuff? Or the least expensive most affordable stuff? No one is hiding anything, you are just oblivious to reality.

str8dum1

iTrader: (11)

yup, nice list there
http://www.proefi.com/productlist_pro128ecu.php

alot of pro128 info for the G/Z also
http://www.proefi.com/proefiresults.php

granted 2800$ is alot of money on top of building your car. That's a good explanation. Being a dealer, is that what you find even after you explain the differences between the 2. I mean active knock control is pretty crucial for most builds. Whats an extra 800 bucks on a 30k bill

rcdash

iTrader: (18)

^ +1, seriously. The amount of useful information is overwhelming. LOL.

It's called bait and switch. The tactic is reprehensible.

I've probably spent more time reading about the ProEFI than any of your users or would be proponents (except maybe Larry and Tom!). Those guys seem to be the only ones with integrity that post in support of the ProEFI. At least Larry provides facts and straight answers to questions. You have been added to my ignore list (along with Jorge and Eric, so don't bother directing a reply to me).

1ZweetZ

So when you read the specs on something people are talking about, you think that they are "baiting" you and "switching" you. It's more like you lack the ability to do any research yourself about a product, and go off the cuff. It's no ones fault but your own that you don't ask the right people your questions, so don't blame it on ProEFI. Another flaw in your plan....no one was "switched" in this "bate and switch" "Scheme".

thom000001

All I can tell you about the 48box as a customer is this.....Larry tuned it, I get in the car and start it (like its stock), and drive the hell out of the car, and it acts just like its stock....well except for that slight whistle and the added 600HP

So like I've said before, from a driver standpoint I love that the car acts purely stock.

All the bells and whistles....well thats why my tuner is 20min away

Tom

thom000001

Larry,
The vids remind me of something I learned in college (yes studying engineering)

CAN'T SPELL GEEK WITHOUT DOUBLE E!!!!!!

rcdash

iTrader: (18)

...and that means a lot in such a high powered car. I corrected my post. Both you and Larry tell it like it is based on your own personal experience without responding defensively or resorting to personal attacks. Thank you for that.

And Larry, thanks for the reply to the PM - talk to you soon!