XHP Reviews and Feedback!

[dzeleski]

Went straight to "Stage 3". Flashed just fine and the difference is quite noticeable. I have some issues with downshifts and rev matching that needs to be tweaked especially for the 3 -> 2 shift it over revs the shift and is very jerky. As said above those tweaks are locked and will be unlocked in a few days.

In sport mode the shifts are aggressive with this map, but it really does make the transmission even faster then it was. You do give up smoothness but its not my daily and I dont really care about that.

I have a track day coming up in a few weeks and am hoping it will be far more reactive then the stock tcu tune. I had several times prior where the trans just did not do as I wanted and after a quick test drive I think it will be much improved.

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[32bitsofGil]

rev matching that needs to be tweaked especially for the 3 -> 2 shift it over revs the shift and is very jerky

Have this exact issue, why I wanted to play with the rev match settings. I also really desire to just stop using first gear ever.

 

[zrk]

Thank you all for early adopting. $50 says one of you blows the seal for a clutch pack this week.

 

[32bitsofGil]

Thank you all for early adopting. $50 says one of you blows the seal for a clutch pack this week.

https://paypal.me/32bitsofGil

 

[zrk]

https://paypal.me/32bitsofGil

The weeks not over yet.

 

[dzeleski]

Thank you all for early adopting. $50 says one of you blows the seal for a clutch pack this week.

https://www.xhpflashtool.com/blog/line_pressure_vs_engine_torque/

https://rbttuning.atlassian.net/wik...s/622755858/xHP+-+Engine+tuning+xHP+Flashtool

If anything it will help not break things. There might need to be tweaks depending on what ECU platform you have but once the ECU and the TCU are on the same page it should work out being much better.

 

[zrk]

https://www.xhpflashtool.com/blog/line_pressure_vs_engine_torque/

https://rbttuning.atlassian.net/wik...s/622755858/xHP+-+Engine+tuning+xHP+Flashtool

If anything it will help not break things. There might need to be tweaks depending on what ECU platform you have but once the ECU and the TCU are on the same page it should work out being much better.

Botti and Payn disagree with you, but I'm sure you know best. ¯\_(ツ)_/¯

 

[dzeleski]

Botti and Payn disagree with you, but I'm sure you know best. ¯\_(ツ)_/¯

I mean xHP has been doing this for awhile and “may” isn’t a confirmation. My trans will need to be rebuilt regardless though so even if it does I’m not that concerned.

That being said pure has a really good write up about this: https://www.puredrivetrainsolutions...m-tuning-frequently-asked-questions-about-xhp

But both sell parts/software related to this conversation. xHP says it’s safe, pure says extra wear/seal failure. I’ll bet it’s somewhere in between. Which is fairly normal for pushing parts harder then originally intended.

Edit: also from what I understand LPB is not on all the time, only when required by default in 6th. At least if that is consistent from the gen 1 b58. Unless you enable the feature.

 

[zrk]

I mean xHP has been doing this for awhile and “may” isn’t a confirmation. My trans will need to be rebuilt regardless though so even if it does I’m not that concerned.

That being said pure has a really good write up about this: https://www.puredrivetrainsolutions...m-tuning-frequently-asked-questions-about-xhp

But both sell parts/software related to this conversation. xHP says it’s safe, pure says extra wear/seal failure. I’ll bet it’s somewhere in between. Which is fairly normal for pushing parts harder then originally intended.

Edit: also from what I understand LPB is not on all the time, only when required by default in 6th. At least if that is consistent from the gen 1 b58. Unless you enable the feature.

There's a big difference in cost of rebuilding a good trans and a burnt trans, though. 5k was enough, don't need it to be $10k. Chris charges anywhere from 2-8k more depending on the damage.

 

[cntrvslbrs]

In for results...Mainly interested to see if the slippage disappears(what stage & parameters are used) when on a E50 tune (500hp/600tq)

 

[dzeleski]

There's a big difference in cost of rebuilding a good trans and a burnt trans, though. 5k was enough, don't need it to be $10k. Chris charges anywhere from 2-8k more depending on the damage.

Yeah thats a fair point. Ill probably reach out to xHP and ask for clarification on LPB vs Shift Pressure. Shift pressure is rescaled in stage 2 and 3, but there isnt any mention of LPB.

 

[Supra_Cop]

I know it’s new and scary to us, but the bimmer boys have been using this for years.

 

[zrk]

I know it’s new and scary to us, but the bimmer boys have been using this for years.

It's not scary- it's just untested on this particular application for long durations at "high" tq. I'll wait until some of the fast boys report back.

 

[Supra_Cop]

It's not scary- it's just untested on this particular application for long durations at "high" tq. I'll wait until some of the fast boys report back.

That’s a pretty fair take on it.

 

[Mimosa]

Botti and Payn disagree with you, but I'm sure you know best. ¯\_(ツ)_/¯

I was told to hold off on this and let everyone else be the beta testers for a little bit.

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