[Glemm1970]

Originally Posted by BmwM140i

How comes ?
xhp do stage 1 2 and 3 for the transmission on the cars they actually come out of.
Can’t see why you couldn’t alter the shift points to feel like the hp50
And it feels like the hp50 in S mode. So more than likely be possible

No.

[BmwM140i]

Originally Posted by Glemm1970

No.

I know sucks we can’t actually change it.
But xhp could have just thrown some better shift points in the tables for sport and sport plus.
Do they even know how bad it feels ? Spoke to a few people now with the hp70 swap and we all have this.
Losing sport and sport plus shift points and just being left with some weird half a throttle to activate downshifts is pretty bad trade off

Literally all that needs doing is copy sport /sport plus shift points from hp50 paste the shift points in the hp70 tables.
If I had the software they use I’d do it myself spent half a day looking found lots of software for the zf but not for BMWs xhp mainly got the market on that

Why people that have had this done would live with it I don’t know
Surely if we all speak to xhp they might listen and send out an update file for xhp. Would not take much work for them to fix this

[blacksapphire440i]

Originally Posted by BmwM140i

I know sucks we can’t actually change it.
But xhp could have just thrown some better shift points in the tables for sport and sport plus.
Do they even know how bad it feels ? Spoke to a few people now with the hp70 swap and we all have this.
Losing sport and sport plus shift points and just being left with some weird half a throttle to activate downshifts is pretty bad trade off

Literally all that needs doing is copy sport /sport plus shift points from hp50 paste the shift points in the hp70 tables.
If I had the software they use I’d do it myself spent half a day looking found lots of software for the zf but not for BMWs xhp mainly got the market on that

Why people that have had this done would live with it I don’t know
Surely if we all speak to xhp they might listen and send out an update file for xhp. Would not take much work for them to fix this

I agree. I do not see why a beefier 8 speed cannot react the same as an HP50. With stronger internals I'm sure you could run more aggressive shifts

[BmwM140i]

Originally Posted by blacksapphire440i

I agree. I do not see why a beefier 8 speed cannot react the same as an HP50. With stronger internals I'm sure you could run more aggressive shifts

Thing is it can it shifts fine in S mode. Just S mode is bad for daily drives

It’s the gearbox tune for comfort through to sports plus
The shift points are so off it’s stupid Feels like an old diesel throttle

[RBT-Tuning]

Shiftpoints do not change with Sport and Sport+ when being in comfort mode. The DEC switch works as a shift speed selector.

So you choose your shift-speed with the DEC switch and you select the shiftpoints with the lever. Thats like it is on all xHP calibrations for N55 and/or B58.

In stock setting BMW did go a double-route. Moving the lever to S OR putting the DEC to Sport does exactly the same thing. With xHP it does 2 different things, so you have more modes to access.

It's outlined in the article here: https://www.xhpflashtool.com/blog/ho..._logic_of_8hp/

However, we just uploaded a "Stage 2" for 8HP70 swaps, which retains the stock logic. Just use this file instead, if you like it more. (on other cars the Stage 1 will do the same)

[BmwM140i]

Originally Posted by RBT-Tuning

Shiftpoints do not change with Sport and Sport+ when being in comfort mode. The DEC switch works as a shift speed selector.

So you choose your shift-speed with the DEC switch and you select the shiftpoints with the lever. Thats like it is on all xHP calibrations for N55 and/or B58.

In stock setting BMW did go a double-route. Moving the lever to S OR putting the DEC to Sport does exactly the same thing. With xHP it does 2 different things, so you have more modes to access.

It's outlined in the article here: https://www.xhpflashtool.com/blog/ho..._logic_of_8hp/

However, we just uploaded a "Stage 2" for 8HP70 swaps, which retains the stock logic. Just use this file instead, if you like it more. (on other cars the Stage 1 will do the same)

Thanks for the update.
It’s not how the button works it’s the weird shift points in D mode it’s always aiming for 8th gear quick as it can and to get it to gear change takes a lot of throttle. then on other side of things S is not good for daily spirited

There’s no happy medium

On the hp50 shift points were perfect. Could we get that feature updated into the hp70 stage 3 file?

Guessing it is this from the hp50 xhp description

Recalibrated shift points in D mode to improve throttle response.

This should make it feel like the hp50 did with xHP

[blacksapphire440i]

Originally Posted by BmwM140i

Thanks for the update.
It’s not how the button works it’s the weird shift points in D mode it’s always aiming for 8th gear quick as it can and to get it to gear change takes a lot of throttle. then on other side of things S is not good for daily spirited

There’s no happy medium

On the hp50 shift points were perfect. Could we get that feature updated into the hp70 stage 3 file?

Guessing it is this from the hp50 xhp description

Recalibrated shift points in D mode to improve throttle response.

This should make it feel like the hp50 did with xHP

let us know how it is!

[BmwM140i]

Originally Posted by blacksapphire440i

let us know how it is!

Drives the same mate just buttons switched back around

Hopefully they put the recalibrated D mode shift points on the stage 3 tune

[MTWO]

How is this holding up for people? Anyone pushing past 700?

[BmwM140i]

Little silver lining.. if you turn on switch of sport mode in cruise.. it makes S mode change gear slightly sooner doesn’t hang gears out as long … feels better for daily spirited driving.

D mode still feels like crap doing 30mph in 7th-8th gear then having to push 70% throttle to change gear is not what the 140i was made for.
Really hope xhp address this

[bimmerace]

Originally Posted by RBT-Tuning

Shiftpoints do not change with Sport and Sport+ when being in comfort mode. The DEC switch works as a shift speed selector.

So you choose your shift-speed with the DEC switch and you select the shiftpoints with the lever. Thats like it is on all xHP calibrations for N55 and/or B58.

In stock setting BMW did go a double-route. Moving the lever to S OR putting the DEC to Sport does exactly the same thing. With xHP it does 2 different things, so you have more modes to access.

It's outlined in the article here: https://www.xhpflashtool.com/blog/ho..._logic_of_8hp/

However, we just uploaded a "Stage 2" for 8HP70 swaps, which retains the stock logic. Just use this file instead, if you like it more. (on other cars the Stage 1 will do the same)

Do you guys support any other swaps like the 75/76 or 95? Will these models even fit? Building a high power F30, but would rather go with a swap than Pure, as they seem too expensive and a swap gives you a stronger transmission.

[blacksapphire440i]

Originally Posted by bimmerace

Do you guys support any other swaps like the 75/76 or 95? Will these models even fit? Building a high power F30, but would rather go with a swap than Pure, as they seem too expensive and a swap gives you a stronger transmission.

Curious on this too. Pure stage 2 trans rebuilds the entire trans but 10K out the pocket is incredibly huge. So is the consensus that the HP70 does not drive like the HP50 but can handle more power?

[G.Newt]

Originally Posted by blacksapphire440i

Curious on this too. Pure stage 2 trans rebuilds the entire trans but 10K out the pocket is incredibly huge. So is the consensus that the HP70 does not drive like the HP50 but can handle more power?

Ask Trevor @ BimmerNetworkPerformance. He runs an HP70 swap in his built motor 340i. Although it's probably not his daily and uses it for 1/4 runs at the drag strip. He still may be able to point you in the right direction.

[Bdub440i]

Are the x and z variants both possible donor transmissions? Or can we only use the rwd n57 transmission?

[rlesko]

Will this work for N55?

List parts needed:

- 8HP70 Transmission (330d, 430d, 535d)

Does 550 not work? It looks like it is equipped with an 8HP70 as well

[Bdub440i]

Originally Posted by rlesko

Will this work for N55?



Does 550 not work? It looks like it is equipped with an 8HP70 as well

Probably some sort of adapter needed. I know that bell housing won't work for the b58.

[TooHighPSI]

Originally Posted by Glemm1970

I put HP70. Transfer case kit from Real Performance. 2500$.
https://www.realperformance.ru/untitled-cx7k

The whole job took one working day. There are no installation difficulties. The hardest part is the software to run the HP70. None of us could do this before. And I had to buy a new full license and Xhp firmware. An important clarification, the HP70 itself is needed from the F 35-40D. There's a better trance itself (bagel).

Curious on this transfer case spacer - don't you lose much of your spline engagement? If not, it seems like the best option for Xdrive, to avoid having to make new front and rear driveshafts.

[Powers3081]

So what I am wondering, is the ZF8HP70 Transmission seems to be used by a few different manufactures. Dodge uses them, Jeep ( Same as Dodge ) Jaguar F Pace AWD uses said trans.
Couldn't any of the above be used? I mean you would need to hard wire the OEM plugs to BMW. That's pretty easy with the wire diagram.

My transmission is acting up, not sure what's going on with it. It will only except D1 and Rev gear. When I try to switch it to S or M mode it kicks me back to D1 and if I try driving it jumps to D5.
Transmission was not acting funky at all, i was driving, rolled into the throttle and i heard a bang. That was that.... So not sure if trans is shot or if it is an electronic issue..

[5w20]

Originally Posted by Powers3081

So what I am wondering, is the ZF8HP70 Transmission seems to be used by a few different manufactures. Dodge uses them, Jeep ( Same as Dodge ) Jaguar F Pace AWD uses said trans.
Couldn't any of the above be used? I mean you would need to hard wire the OEM plugs to BMW. That's pretty easy with the wire diagram.

My transmission is acting up, not sure what's going on with it. It will only except D1 and Rev gear. When I try to switch it to S or M mode it kicks me back to D1 and if I try driving it jumps to D5.
Transmission was not acting funky at all, i was driving, rolled into the throttle and i heard a bang. That was that.... So not sure if trans is shot or if it is an electronic issue..

No.

Completely different bellhousings.

[Powers3081]

Originally Posted by 5w20

No.

Completely different bellhousings.

I figured that much, an adapter plate would not be that hard to have made. So on my 240sx, i ran a 6spd from the 350Z, I had to cut 3/4 of an inch off the bellhousing to allow for an adapter plate. Also to maintain proper length for input shaft.
We could get around the bellhousing issue fairly easy IMO. The reason I bring this up, is the BMW ZP70 trans seems to be a little harder to get here in the states and its not cheap. To where there are several option out there as I mentioned of manufactures using the ZP70 and they are cheap..

So, I am wondering what other obstacles would there be.... Wiring, right? I would imagine they all use the same splines. It wouldn't be cost effective for the manufacture to have different splines for every car that uses said transmissions.
I am only putting the idea out there because it would benefit all of us as a hole.. Just slinging ideas around... Thoughts?

[5w20]

Originally Posted by Powers3081

I figured that much, an adapter plate would not be that hard to have made. So on my 240sx, i ran a 6spd from the 350Z, I had to cut 3/4 of an inch off the bellhousing to allow for an adapter plate. Also to maintain proper length for input shaft.
We could get around the bellhousing issue fairly easy IMO. The reason I bring this up, is the BMW ZP70 trans seems to be a little harder to get here in the states and its not cheap. To where there are several option out there as I mentioned of manufactures using the ZP70 and they are cheap..

So, I am wondering what other obstacles would there be.... Wiring, right? I would imagine they all use the same splines. It wouldn't be cost effective for the manufacture to have different splines for every car that uses said transmissions.
I am only putting the idea out there because it would benefit all of us as a hole.. Just slinging ideas around... Thoughts?

The bellhousing is quite a bit wider, it may not even fit in the transmission tunnel. Those bellhousing work much better on wider V8 engines.

Output shafts are beefier on the BMW versions over most of the other (non performance) options.

[Powers3081]

Originally Posted by 5w20

The bellhousing is quite a bit wider, it may not even fit in the transmission tunnel. Those bellhousing work much better on wider V8 engines.

Output shafts are beefier on the BMW versions over most of the other (non performance) options.

True, it was just a thought, seeing how the BMW HP70 is a little harder to find here in the States. I have no idea what's gone on with my trans, M240ix. There was no slippage. I was drive shifted from 2nd to 3rd in manual mode. Heard ( felt ) a bang and lost all my forward gears. I reflashed it back to stock and refreshed XHP, had to use Xdelete to get the car home in 1st gear. I'm not sure how to post a video on here. I was hoping maybe someone has had a similar situation.