Your first paragraph is correct, in terms of two-step launch control. The FCON has this functionality.

In regards to literature, HKS has some very strict rules about distributing technical information on the FCON. We had to sign a very detailed non-disclosure agreement. However, your Pro Dealer can easily access this information through his HKS contacts.

 

Will get him to investigate. I know the deal about the technical doco. Wasn't after the doco but more on the terminology used in the doco to sort of give direction for the tuner when he requests info from HKS

No probs will speak to the Pro Dealer again and ask him to chase it up for me

 

I think there is some confusion. Two step and launch control are two different things. The F-Con has 2 step where it will hold the engine at a certian RPM (ie 4500) when activated to launch the car and then when the car is moving it will engage the normal rev limiter. The two step can also be setup to build boost when the two step is engaged with a turbo car (aka anti-lag). I'm not 100% sure but if I remember correctly I don't think the F-Con has true launch control that will monitor wheel slip and stutter the ignition to control power output (basically this works by making the engine misfire slightly so that the overall power is reduced).

 

That is correct. Oftentime, the phrase two-step and launch control are used interchangeably. Both are a form of launch control, but Dave is correct. The FCON does not have a traction control type launching system. Rather, it simply, has a secondary rev limiter that is deactivated as soon as wheel movement is detected.

 

As some as you know per my other thread we recently installed and tuned the FCon Vpro on my 04 G35 Coupe, I have been using the Two-Step launch control and Flat shift (Anti-Lag) feature flawlessly. Basically from a stop you put the car into gear with the clutch fully depressed and go WOT. The car sounds like a machine gun and holds the RPMs to 5K ( were we set it ) It also builds boost to about 9psi then I just let go and take off, except right now I am loosing traction because of the street tires. (Charles definetly need to borrow those DR's) With DR's the car will just take off like awd! ( sort of )

The Flat-Shift (Anti-Lag) is awesome because when I shift gears I do not let go of the gas pedal ( WOT the entire time ) and the VPro holds the RPM and then retards timing to hold/build boost so you never loose boost shifting between gears, Think I am going to have to run R-Compound tires daily

Hope this helps

-George
GT Motorsports

 

That right there is worth it to me. I am so used to dragging WOT this would be perfect to not put so much stress on the transmission/engine while doing this. Also, 9psi off the line sounds great to me

Just as a confirmation, this flat shift feature 100% works? Do you set an rpm where the FCON will know to retard timing-then you just shift? What if you have different shift points!? Would you need to set it to the lowest to run this feature?

 

Here is a Vid of the 2 step at a stand still. Creates 9psi!

Alberto I will speak with Sam about the parameters as to how it works.



-George
GT Motorsports

 

That video is sick!! Id appreciate if you asked Sam how it works. If it's not too much to ask, please tell him to shoot me a PM when he gets a chance on that gearset

 

George, If you could post the info here to would be fantastic so I can take it up will my local dealer

 

This maybe a big ask but does anyone have a map for the V Pro that they are willing to share. The whole purpose is just to get a starting point to save time on the dyno. Basically the setup is going to be the HKS ST and PE 510's so if anyone has anything close it would be appreciated.

Not holding my breath but u never know.

 

nice vid

Would you take a vid using the two step with launching the car and a vid of the flat shift...? Thanks!

 

Mike,

I do not know who your tuner is but these questions are starting to concern me. HKS provides basemaps. They can definetly provide one for the charger if not just for an NA car that should be able to be modified very easily. All Pro tuners know this. If your tuner does not know this then I doubt he is capable of tuning your car. Even in Japan HKS requires certifications. I would have assumed that being so close to Japan would make it easier.

 

Dave, Long time no speak.. They have the base maps for the FCON S which was part of the SC kit. But I have now sold the SC kit and ordered the HKS Single Turbo kit and will be running a FCON V PRO.

The pro dealer near me is www.bd4s.com.au

Hope this clears the air. Will ask them to see if they can get a base map from Japan.

 

Mike Unfortunetly it does not. First all the questions you are asking are something that your tuner should have available first hand and he should be answering them. Becasue he obviously is not it concerns me that he does not even seem capable of tuning the system. HKS provides base maps for all of their vehicles that they provide harnesses for. And even some they don't. On top of that HKS Japan has 4 dynos and is constantly testing and refining both the systems they include with production units and also upgrading their production unit on their own vehicles and customers vehicles. HKS Kansai Service is the retail arm of HKS Japan and I can guarentee 100% that they have a base map that you can work off of. Dollars to donuts HKS has a map for the single turbo that will be within 5% of what is needed for your car. So having said all of that why is your tuner still asking for this information? It is just odd! Second, even then the HKS startup map for NA cars should easily tunable to a turbo car, for an experianced tuner. These gentleman are not inspiring confidence. I know thats not much of a help, but I want to make sure your vehicle is running right for you!

 

As Dave mentioned, a base map is not needed. A good tuner will start with the HKS VQ35 base map, and then tune your car from scratch. The base map gets the car running...thats it...then its up to the tuner to calibrate fuel, timing, and all of the compensation, and sub maps. There is no benefit to using another person's basemap, as the base mapping is dependant on numerous factors. In the end, it will create more problems for you.

Dave brought up a really good point...your HKS FCON tuner should already know these things??

 

Unfortunatly I'm one of those Z owners that likes to be armed with all the info prior to discussing options with tuners etc.

I just got an email back from the tuner and my FCON that he has already setup with the correct dips and bench tested the unit was upload with a base map that will get the car started etc and be at a point where tuning can commence.

I can assure you this company and tuner is no backyard jobbie.

Thanks for the info though

 

haha..sounds good to me!

 

Hey guys, had a quick question for one of you HKS Pro gurus. My tuner is out of town for a few weeks so just trying to figure things out while hes gone. Is it possible to setup the 2 step launch control without having a switch? Also, can the 2 step launch + no lift shift feature work together, or does it have to be 1 or the other?

 

Yes, we usually set up the two-step in "automatic" mode. This meanings that two step will be active when there is no speed signal input (ie...the car is not in motion). The switch is good, if we want the user to be able to adjust the launch RPM.

In regards to no-lift shift working together, I havent tried it yet, but I dont see why not.

 

Not sure if you can answer this or not, just hoping to try it out sooner than in a few weeks. As I said my tuner is out of town for a few weeks but his AEM tuner is in town and has the fcon software. He asked me if you could tell if the "automatic" mode means you leave the "speed input" unchecked under ignition 2 by the Ignition cut RPM (switch)? Not 100% sure what that means though. Any help would be greatly appreciated. Want to try this feature out!!