Pro EFI
 

Hi everyone,

Does anyone know if UpRev ROM tuning software can support and handle higher end horse power cars? I was just curious is ROM tuning is capable of doing such thing. I've been looking around and "researching" from higher end cars what kind of ECU/stand alone/ etc their all using. It all ranges from anything from Haltec, Motec, AMS, and other companies. I've been looking into Pro EFI and talk to few licensed people about it. They said it's possible but to custom make the harness is minimum of $1500.

Would anyone well over 800whp know anything about this, or could add their two cents in?

Thanks!

haha would anyone well over 800hp add there two cents, well since the only one that is is at gtm being worked on that's gonna be hard to find. It is running uprev though along with new mafs.

Edit: motec has been done but the harness is like $7500, fcon vpro has also been done but it's discontinued now, haltec has been stuck in pipe dream mode for the last 5 years, and you would need 4 dbw throttle controllers in whatever you do because the vvel takes 2 and the throttles take another 2.

LMAO, very true.

And I don't know, I will admit... But isn't UpRev working well enough? EcuTek has great potential I guess, but is limited too...

I swear to god your phone is set to go off every time i post isn't it lol

No, I'm just as bored as you are and I click "New Post" every 10 seconds and pray

jeez I just f5 the engine and drivetrain section, I try to stay out of the lounges prolly why I don't ave 10 gazzillion posts by now.

Does the person with the Motec and Motec harness on the forums by any chance? I looked into the HKS Fcon, and I think it's great but the problem is their is only one licensed tuner here in Dallas. I personally think Jotech sucks a lot of balls when it comes to tuning.

I've been keeping in contact with Eric over at Haltech. It doesn't look promising at all, since he said no one in this community would ever buy it.

Any direction would be great. A dyno sheet would be great too!

Thanks!

Never heard of it, so I doubt it...
Are you on the DFW 370Z FB page? I used to live in Dallas, and the biggest issue with JoTech was that if you didn't own a GTR they didn't care much... And he's still gonna charge GTR tax rates... But Kenny does miracles with GTRs!


The general consensus is go to AWD Tuning, or drive to Austin and go to UpRev

I don't think Kenny does miracles. I think Tony at T1 does miracles with GTRs. Anyway, no I'm not on the Facebook page. I'm just going to keep my car questions, events, and such with the forums. Thank you though!

I guess I'll try out the Pro EFI and let everyone know how it goes, unless someone can assist me with some great information!

Thanks again!

Never heard of T1, lol

And my bad, I'll keep the thread related to your original post.



May I ask why you want to change to a standalone? Is UpRev lacking something? Or are you planning the most bitchin engine swap/setup?

i would love to see the sources that there was ever a single VVEL car running a standalone EMS of any type. I dont think anyone has done anything yet.

fcon harness was done by gtm, motec harness was done by motec for gtm, really there is all of one shop that does public work that has installed a standalone in this car and you may have to wait a long long time to get it. If you call up motec they could probably make you one but the price will be rediculous. unless you are going to make 1000+ horsepower you can do it on the factory ecu with a reflash and higher calibrated mafs + lots of tuning.

Edit: try contacting the grand am teams to see what they use, oh wait hr heads so you won't be able to use that either hmmm you're SOL my friend, does PRO EFI know what VVEL is? once they do, odds they are going to tell you to screw off are almost 100%

The FCON cannot run a VVEL engine, so GTM might have attempted it to find out that hard way that its not going to work out. I dont know about a Motec. Id like to see any sources at all that say that either of those EMS projects ever ran.

The FCON V Pro, I mean, I guess you COULD run it... but while a full standalone, the FCON could not run even a VQ35DE without the stock ECU, let alone a VQ37VHR. So say you spliced it in with the VHR harness anyway (pretty easy), here are some problems:

1: you are stuck using MAFs. Speed density isnt an option with VVEL... then again, this should be the case with any EMS not just the V Pro, wouldnt it?

2: Accel / Decel fuel trims. So, you splice into your TPS sensors so you can manage your accel and decel trims. Thats going to be an issue when your VVEL system is adjusting engine load with the valvetrain rather than the throttle bodies. VVEL causes changes in engine load that are not directly reflected in the actions of the throttle plates. The VVEL system is the last thing to touch the air before it enters the cylinders and the throttles obviously are none the wiser... to get this to run clean, you are going to need an EMS that is aware of the VVEL system and what its doing as its doing it... and you are going to need a secondary accel fuel trim map that is based on the actions of the VVEL system. ami right? I see this as being more hassle than its worth as far as setup and configuration with any EMS at all unless one of the manufacturers steps up to the plate and puts the features clear and easy in their software.

So, you can put the FCON in there and start it up... but I dont know who is going to enjoy driving that car for more than a few minutes without functional accel/decel trims

This.

Most people are completely unaware of the VVEL system in the VQ37VHR, or what complexities it brings to the table.

Yup vvel is a mother when it comes to tunning. I had a box once that could drive the vvel assemblies from a commanded rc square wave signal, but i couldnt find a cheap enough standalone with dual etb drivers for the throttles and custom mapable servo output, then i would have had to write up an interferance table. I got as far as moving the vvel actuators with a pot on the bench and gave up there.

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Well... maybe just build an independent controller like you did, put a little knob on the dash, and just find one static spot that works the best for you on the dyno? Then you can run an EMS like any other car in the world. (not being serious really)

yeah that'd work lol no the goal was to use the servo out from the standalone to drive the box, but unfortunately there just aren't any nearly affordable ecu's with dual dbw for the throttles, i could have done cable throttles, but you also lose your guages too and there were just too many things that wouldn't work after removing the ecu.

Have you done this before or is this a speculation?

Is their anyone who is making more than 650whp with bigger turbos?

Seems like most people have Potatoe disk turbos on this forum.

disco potato's and there are guys with disco potatos running over 650. tt370z for one I know off hand

I don't doubt it at all. I'm sure his car is quick but I'm looking for more top end power.

I was also looking at a hallinger transmission to eliminate lag times, but the price is a heart attack times 3.

What about builtit guy? He's signature says 1000hp. Is that true or hype?

thats the one car over 800 that is at gtm

Tt370z is at 801whp and 700lb-lbs of torque on twin gt3071. The 1000whp Z has only been dyno proven(to the community at least) for 860whp I'm not sure we ever figured out why it couldn't hit 1000whp. Pretty unimpressive when there is at least 1 car there on stock displacement. I will be shortly behind him except I'm going to do it with the GT2860s. I see no need for 1000whp in this little car. To me it's just chasing numbers; it'll already be a low 9 second car.
More on topic of your OP though it has been confirmed to me; in person, by both Dustin and Hal at dynosty that the Haltec Platinum is supposed to be released at the end of this year with the capabilities to act as a stand alone for our cars. The first question out of my mouth was "will it be able to control the VVEL?" I was assured by dustin that it would though until I see results it is just speculation. The new Haltech unit is a definite thing though.

I used to run the FCON on the DE's. I was the first person in the USA to run it, and tested the patch harness that HKS was releasing. Actually made the DE stock engine power record with it during the first tuning session, and held it for years! So I am pretty familiar with the FCON... although there are parts of it I never bothered to learn.

To answer your questions, no I have not put the FCON in the 370z... but that doesnt make my concerns purely speculation either. For if those issues didnt exist, I would have already put the FCON in my car. The FCON is by the far the cleanest and easiest to use EMS I have tried... it may be lacking some of the cool features but you cannot argue how easy it is to make a car run perfect with it. I would jump on it in an instant if it were realistic for the 370z.

This is all great information. I'm really curious as to if ROM tuning can suffice higher end needs. I was reading about ROM tuning how they have a certain window of bits and cells or something. I'm not really familiar with tuning or anything, so please don't quote me on it. But to break down the long story short, heard ROM tuning can only go so far. I'm planning to do a top mount with two 62mm turbos, and I'm VERY curious to see if UpRev can handle it. I hope this makes sense.

But again thank you all for your input. It is very helpful. But would you know anything about the Pro EFI engine management systems?

This is off topic but does anyone know about sequential transmission? I don't really plan to do this, but it is very interesting. I was looking at this company, Holinger Engineering - Home, anyone know of anyone who did this to their cars?

This looks freaking sweet!

the quaife qbe69g can be ordered with a vq bellhousing, just need to make sure it is the HR/VHR bolt patern and not the DE out of the earlier 350z.

Also did you get your heads figured out?

Yeah I got it all figured out. Thanks to g&q forum member and jtran motorsports in houston. Thanks for asking! It's a pain in the ***.

And what you mentioned is it the transmission stuff?

Thanks for all the help!

Its a complete sequential trans. Its only $11,000

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Whats your purpose for a 1000whp car? Standing mile, Drag, Etc?

These cars need ALOT of chassis work to use that kind of power. Its one thing to spin a dyno that high, But a whole other game trying to use it.

Roll racing. Tx2k.

Making all the changes needed to make 1000whp I don't think the Z will be much of a "Street Car" anymore. You need to change so much to handle that power is just seems like it would be more effective to just get a better 1000whp platform.