I didn't know the Fcon pro could make changes like that? I know they all pull timing when you knock but it's not for good, it goes back to where the tune was.

Utec, HKS IS, Fcon Vpro, Doesn't matter! Any of them is cool, as long as GTM is tuning and installing it, you're fine! But prepare for a long wait Grrr I miss my car haha

Yah, this was one of the things i found out about the Fcon pro. You can set a target AFR at the different ranges, and if the outside temperature goes up or down, it can adjust for it and get you back into your target AFR. Let me see if I can find where I read that.

http://www.hksusa.com/products/more.asp?id=1965

Its on HKS's website, somewhat toward the end of the paragraph.

/\ Yes, Fcon does auto adjust the A/F which you can set a Target. Utec also has Temp Compensation which it can also add/subtract fuel when temp changes (Not the best though). You can also adjust Timing with Utec base in Temperature but it is not advisable.

So FI, when you said you get knock when its over 95 degrees outside, you can adjust your timing to make it go away. If its the temperatur outside, would the AFR adjustment also make your knock go away? What I'm asking is, if your EMS had a better temperature /AFR adjustment, like the FCON Vpro, would you not have to adjust your timing when the temperature goes up?

lol... You can't compare Utec to Vpro coz that is a Standalone EMS If I have the money then I don't mind having the Vpro. Vpro can also accept input from another System like a Water/Meth Kit. When you ran out of meth then Vpro is capable of automatically switch to a different map which I like.

Now to answer your question, you can usually eliminate knock on 1) Retarding the Timing or 2) adding more fuel to cool it down. You can have a perfect A/F and still knock, this mean your timing is set a little aggressive so the way to fix it is retard a few deg on your timing Map (It is all about how your tuner set your timing map). My tuner suggested not to touch my timing when adjusting for Temp. Compensation, he just want me to use the A/F to compensate for the weather in Utec.

So if I went and got FI, I could ask that my timing not be touched, even though I'll have not taken advantage of that potential, just to be safer from knock? Or does timing have to be adjusted with an FI kit? I'm not looking to pull every single HP or TQ out of the FI kit, I just want more power as safe as possible with FI.

The Timing Map will be set by your tuner when tuning the car. Some tuner will run more timing to gain more HP and that is what I meant about timing was aggressive. Just trust your tuner and just tell him you want a conservative tune and he'll set your timing map to be conservative. If you want to squeeze every HP you can get then he'll give you a little leaner A/F or more aggressive Timing Map. Don't worry about these coz GTM will set you up the right way Just worry about the BEST EMS you can afford!!

Yah, the price between a utec/tuning/couple of gauges and mounting and a Fconvpro/tuning and an Fcon navigator, actually isn't that much. If I do this, Its definitley going to be the Fcon vpro. I mean, with the navigator you can watch AFR, oil and air temps, pressures, and boost, and have it hidden in the navi cubby. That is definitley the way im going to go.

How much is a complete installed/tuned Vpro? I think the price is quite a bit different. I would guess a complete UTEC, etc with your standard gauges would be ~$2k installed/tuned, $2500 at most. I have less than that in mine and had to make my gauge pods for 6 Nexus gauges). I'm sure the Vpro is at least $1k more since the basic Vpro is $3k installed.

I agree that the Vpro is a much better choice overall but it's hard to compare prices between the two.

I think you didnt take into consideration the 6 nexus gagues in the price, where the Fcon navigator is about 350. I'd be looking into getting about 5 gauges. That brings the difference closer. Yes, the basic Vpro installed is about 3k, maybe give a few hundred more. Take into consideration your monitoring devices, and that narrows down the difference a lot.

Don't get me wrong, I'm not saying it will cost the same, I'm just saying for the complete ems and monitoring, the price difference is insignificant for what you're getting on the Vpro.

Edit- I just got some more info on the Vpro and navigator, it turns out you need to have a few more things installed in order to have the navigator display all those readings, which ups the cost of a Vpro and navigator 1600 more.

That price was with all my nexus gauges and everything including the UTEC tuner basic.

I have under $2400 in everything.

I do agree that the Vpro is much better but for what it is and the price the UTEC is hard to beat.


My first setup was the Zeitronix wideband/boost/egt which cost me ~$400 and the UTEC/tuner/map which I paid ~$1050 for. Factor in ~$400 for a tune and you are in pretty good shape for under $2k.

dont forget to add a Knock Amp with VPro I think you'll be closer to $4K if not more when you are done with Fcon (Vpro/Tune/Knock Amp/Navigator/Install). You can get a Zeitronix and that will give you EGT, Boost, A/F, Lambada all in one if you want to save some $$$.

Yah, i kinda got excited but it looks like I'm not going to be able to get the Vpro. Oh well. So with gauges, does each one come with the sensor that is required for it to read? Or do you have to connect the gauges to a main box that connects to all the sensors to get the readings? I'm looking at Defi and innovate gauges right now.

Easy pick. HKS iS-- Most of the Pro's goodies- quite a bit less money.

Was 2200$ for parts install and tune (That was with the 1000000000% upcharge from japtrix )