VitTuned Does It Yet Again -- KTuner Flex Fuel "Stage 2" tune laying it down!

davemarco said:

That's awesome! So just to clarify, you would say that your clutch still feels super light, just like the stock feel? Or does it just feel normal relative to another car that doesn't have a feather light OEM clutch?

Sorry for all the questions, just super excited about the potential of this car!

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honestly after you drive the car one day you will not even be able to tell the difference from that point on

Not sure if this helps any but I ran across this. https://forums.nasioc.com/forums/showthread.php?t=2599961

Greencobra said:

Not sure if this helps any but I ran across this. https://forums.nasioc.com/forums/showthread.php?t=2599961

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I’m pretty sure that is only applicable to the Subaru clutch they were discussing, not all Clutchmasters clutches.

360glitch said:

I’m pretty sure that is only applicable to the Subaru clutch they were discussing, not all Clutchmasters clutches.

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Have you seen anything similar to this for our cars? It would be great to know the exact tolerance for each level.

Greencobra said:

Have you seen anything similar to this for our cars? It would be great to know the exact tolerance for each level.

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No but I think it is all percentage based.

360glitch said:

No but I think it is all percentage based.

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Do you know how much our stock clutch holds?

Greencobra said:

Do you know how much our stock clutch holds?

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not much so be trust me. Got an Injen CAI, PRL downpipe,, Aem charge pipe , Ktuner v2 19/23.5 and clutch slipping already.

y2kprofesor said:

not much so be trust me. Got an Injen CAI, PRL downpipe,, Aem charge pipe , Ktuner v2 19/23.5 and clutch slipping already.

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Yea I have the same set up basically without the charge pipe and I have a vit stage 2 tune. The slipping is killing me.

Greencobra said:

Do you know how much our stock clutch holds?

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I think anywhere from 240-300wtq

I have about 260-270wtq on stock. It slips every now and then

Zerkom122 said:

What kind of power can we achieve with Ktuner and Flex fuel? I'm guessing we cant get no where near the amount of torque the Manual can but can we get more HP?

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I just finished my custom Vittune all stock for now and seeing 25-26psi at peak boost and my clutch is slipping like a mofo can't put any of it down I'd guess its around 280wtq...upgrading to a FX300 or FX350 haven't decided which one yet. Definitely will be jumping on the flex fuel kit here from Vit next year!

KramVT0215 said:

I just finished my custom Vittune all stock for now and seeing 25-26psi at peak boost and my clutch is slipping like a mofo can't put any of it down I'd guess its around 280wtq...upgrading to a FX300 or FX350 haven't decided which one yet. Definitely will be jumping on the flex fuel kit here from Vit next year!

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FX350

In the meantime, try doing a wot in 4th gear. My co worker told me that the clutch could be glazed and doing wot in high gear can help (worked for me). It's not a permanent fix tho

VitViper said:

OP updated with a better explanation of the flex capabilities of KTuner and our Stage tunes.

Graphs to demonstrate this behavior.

Stock vs our Stage 2 tune in "Normal" mode (low boost setting).

And now Stage 2 in "high boost" (Sport Mode) on E40 fuel vs the "low boost" (normal mode) 92 octane setting.

This is all one tune -- I just added ethanol to the tank to make E40 and then hit the "sport button" to give it all she's got. No reflashing, no retuning -- the KTuner programmed ECU is doing it all on the fly with our Flex Fuel kit. Allows for a very dynamic driving experience!

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Vit/Ktuner,

I may need to pay for this type of tune to be custom or there may be a CVT tune as somewhat suggested. I have a CVT and I'd want everything that is available horsepower wise past 5700rpm. I don't want or need that much torque leading up to that point as I never utilize the mid-range in any of my driving. I think you know why I chose 5700rpm+ (Torque below this point is above 260ft-lbs). I race in 'L' gear so it stays at max rpm. There's one E85 station on the way to one of the tracks I go to. Otherwise, no stations near me.

Will there be a CVT option/tune similar to what I have described above (Low torque under 5700rpm, max horsepower above 5700rpm+)?

Myx said:

Vit/Ktuner,

I may need to pay for this type of tune to be custom or there may be a CVT tune as somewhat suggested. I have a CVT and I'd want everything that is available horsepower wise past 5700rpm. I don't want or need that much torque leading up to that point as I never utilize the mid-range in any of my driving. I think you know why I chose 5700rpm+ (Torque below this point is above 260ft-lbs). I race in 'L' gear so it stays at max rpm. There's one E85 station on the way to one of the tracks I go to. Otherwise, no stations near me.

Will there be a CVT option/tune similar to what I have described above (Low torque under 5700rpm, max horsepower above 5700rpm+)?

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A custom tune can be tailored any which way you want it. You yourself also have the ability to limit boost levels in every gear when starting with the available starter maps.

fiend busa said:

FX350

In the meantime, try doing a wot in 4th gear. My co worker told me that the clutch could be glazed and doing wot in high gear can help (worked for me). It's not a permanent fix tho

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Why not the FX300? Just curious - it seems like it would have a softer pedal action.