xHP Torque Punch/Torque Punch Ideal Settings

[Schemxr]

Hello, I currently have the xHP stage 3 flash on my m4 however i've noticed some of the updates such as torque punch and torque reduction.

I've heard that with the proper settings, you may not lose boost when upshifting at higher rpm's.


Is there a way to calculate the best possible settings for each selection?

[davyent]

Originally Posted by Schemxr

Hello, I currently have the xHP stage 3 flash on my m4 however i've noticed some of the updates such as torque punch and torque reduction.

I've heard that with the proper settings, you may not lose boost when upshifting at higher rpm's.


Is there a way to calculate the best possible settings for each selection?

Follow this thread:

XHP Flashtool - F8X DCT Transmission Tuning Software Tested! https://f80.bimmerpost.com/forums/sh....php?t=1757920

[TopJimmy]

Here's my recipe for XHP settings:

'18 M4 Comp Coupe, all stock except wheels and tires.
Bootmod3 Stage0 GTS tune (the free one)
XHP Stage3 v1.4 (applies to Stg 1&2 also)
-Torque Reduction ON, set to 400
-Torque Punch ON, set to 4
That's it.

The math:
M4 GTS tune yields 442 lb-ft of torque.
442 lb-ft converts to 600Nm.
2/3 of 600Nm equals 400Nm.
***Set the Torque Reduction slider to "400".

The XHP manual says you might increase TQ Punch when you reduce the TQ Reduction, so I went from 3 up to 4.

I feel no sponginess on either upshift or downshift in S1 through S3. The shift action is crisp, but I feel no kick on upshift. I might go try TQ Punch at 5 and 6 just to feel the difference.

[Motown65]

Originally Posted by TopJimmy

The XHP manual says you might increase TQ Punch when you reduce the TQ Reduction, so I went from 3 to 4

XHP says to increase reduction and punch if you feel the spongy shift. I assume they’d want you to start at the default 500/5 settings. Torque punch is used to adjust fluid pressure on the clutches when shifting. I believe I ran into the issue that with 600/3 I was having the car fail the 1-2 shift on the drag strip from the extra load. Jimmy you should text me back and we can get some experiments done haha

[TopJimmy]

Originally Posted by Motown65

XHP says to increase reduction and punch if you feel the spongy shift. I assume they'd want you to start at the default 500/5 settings. Torque punch is used to adjust fluid pressure on the clutches when shifting. I believe I ran into the issue that with 600/3 I was having the car fail the 1-2 shift on the drag strip from the extra load. Jimmy you should text me back and we can get some experiments done haha

Dude, just try what I said to do.

XHP responses are typically generic.

[hellokitty]

Originally Posted by TopJimmy

Dude, just try what I said to do.

XHP responses are typically generic.

TopJimmy thanks for the tip! I think I finally found my ideal settings after months of messing around with BM3 and xHP.

BM3
1) Cary Jordan Stage 2 (flex fuel) on pump ACN 91. I took a break from full E85 to flush out the fuel system, so this was a great time to play with my settings on pump gas.
2) Torque reduction set to 30% in 1st, 20% in 2nd on ACN91. Torque reduction set to 40% in 1st and 30% in 2nd and 10% in 3rd on full E85.
3) Throttle desensitivity in Sport+ set to 9

xHP (same as TopJimmy)
1) Torque reduction to 450 based off of 500 wtq = 677nm x (2/3) = 446nm.
2) Torque punch set to 4
3) Custom shiftpoints, launch control, etc. from various people on here throughout the years.

[chewbakam4]

I just run the GTS flash that bm3 offers and its worked out great for a long time now

[Stryyker]

Originally Posted by chewbakam4

I just run the GTS flash that bm3 offers and its worked out great for a long time now

Can anyone comment on if theres a noticeable difference from those who have had both? I too just use bm3’s solution but curious if xph could be worth it.

[BajanDCT]

Originally Posted by Stryyker

Can anyone comment on if theres a noticeable difference from those who have had both? I too just use bm3’s solution but curious if xph could be worth it.

Had both. XHP is defiantly better than BM3 GTS flash. XHP is one of my favorite mods.

[FrankEbONEZ]

Similar to hello kitty as far as power but THE EXACT same settings in XHP. XHP is almost my favorite mod if it weren't for the Cary Jordan tune.

BM3
1) Cary Jordan Stage 1 (flex fuel) on pump 93. I finished my winter break from full E85 and am now back to full rolling smoke show mode.
2) Torque reduction = none. Burning up these tires as new tires will be ordered shortly.... once i make a decision
3) Haven't messed with throttle sensitivity but really really should.

xHP
1) Torque reduction to 450 based off of 500 wtq = 677nm x (2/3) = 446nm.
2) Torque punch set to 4

Sorry hellokitty basically copy and pasted your response but felt the need to reiterate how great XHP is with similarish power. Its scary smooth with no loss of power. I don't even hesitate to upshift mid turn on long opening sweepers on the limit and same with downshifts on tightening sweepers. The car never gets upset from a shift anymore regardless of the situation.

[YM4_F82]

Anyone could share with me the best setting in xHP to gain performance for 100-200 KM test.

[CormanM///]

What other settings beside TP and TR?
I have a 2016 f82 M4 DCT transmission ,tuned with MHD stage 2 plus RON 95 Oct 91, and had high flow downpipes, drop in AFE high flow air filters, 4 pins Crank hub upgrade.
I have flashed stage 3 xhp (v1.7) . My only custom changes were Torque punch 4, and Torque reduction 400.
I have noticed on Drive logic D2 (automatic) or even D1 automatic, that when on sport or dport plus... while the upshifting became crisp and timely to some extent, however... if I step on the brakes, it downshifts aggressively moving from D7 to D4 or D3 in a single jump revving the rpm to 4500 or 5000.
It doesn't go through the gears in downshifts but rather jumps down directly 3 to 4 gears!.
Is this normal? I mean doesn't this affect the transmission or engine in a long run...
I appreciate your feedback.