F30 XHP flash

n55david · 10-18-2021, 06:44 AM

Quote:

Originally Posted by harkes

Quote:

Originally Posted by Phantom10R

slippage and noises

I was more interested in posts or links?

I'm not that type of person.

thejeremyman9 · 10-18-2021, 01:18 PM

Quote:

Originally Posted by harkes

Drag Mode

Yes, tried it. Massive punch in the back on upshifts. I can easily see how this can improve several 1/10s on a multiple gear pull.

I feel some calibration missing in the lower gear though - feel unnatural/excessive the way the lurch forward on upshifts.

Just found drag mode description on XHP's website. I don't even want to use the built-in LC so yeah, probably will not use this lol.

lens · 10-18-2021, 05:18 PM

Quote:

Originally Posted by thejeremyman9

Just found drag mode description on XHP's website. I don't even want to use the built-in LC so yeah, probably will not use this lol.

Yeah, I've been using XHP stage 3 for about maybe almost 75k miles? Works super well on the track and helps with third gear torque limiter, but I'd probably only use drag mode once as a glory run on dragy or drag strip to see how it runs.

Using their built in LC is fine as I've used it over a hundred times already, but with how many miles are on my transmission, I'm pretty sure something will break

harkes · 10-18-2021, 07:59 PM

Tried a few more times last night. Those clutches are DUMPED - HARD haha. LC launch in Sport+ and the car went completely sideways shifting into 3rd making me lift off.

I say "hard" but actually there is no jolting in the drivetrain at all. Just that lurch forward. The DCT feels awesome with the "torque punch" but this feels excessive/weird so I doubt I will use it much in the future also. No doubt very efficient for the drag strip though - I hear some axles and transfer cases snapping in a not so distant future

n55david · 10-18-2021, 08:30 PM

Quote:

Originally Posted by harkes

Tried a few more times last night. Those clutches are DUMPED - HARD haha. LC launch in Sport+ and the car went completely sideways shifting into 3rd making me lift off.

I say "hard" but actually there is no jolting in the drivetrain at all. Just that lurch forward. The DCT feels awesome with the "torque punch" but this feels excessive/weird so I doubt I will use it much in the future also. No doubt very efficient for the drag strip though - I hear some axles and transfer cases snapping in a not so distant future

yeah it locks the torque converter. that's what happens.

10-18-2021, 07:59 PM	#466
harkes Colonel 1077 Rep 2,357 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	Tried a few more times last night. Those clutches are DUMPED - HARD haha. LC launch in Sport+ and the car went completely sideways shifting into 3rd making me lift off. I say "hard" but actually there is no jolting in the drivetrain at all. Just that lurch forward. The DCT feels awesome with the "torque punch" but this feels excessive/weird so I doubt I will use it much in the future also. No doubt very efficient for the drag strip though - I hear some axles and transfer cases snapping in a not so distant future __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China)
	Appreciate 0 Quote