It works just the way MR-KRAKA describedE9X does not have ECO Pro/Comfort/Sport/Sport+button,how to selection Drive Mode ?
It works just the way MR-KRAKA describedE9X does not have ECO Pro/Comfort/Sport/Sport+button,how to selection Drive Mode ?
I will definitely be doing the work myself if I were to decide on this transmission swap.A lot of factors in there but for me with a “bolt on” 8HP45X I’m well under 2K all in on my swap. That’s DIY No adapter plates needed… You would have to explain in depth what you are asking for to a shop to get a realistic quote if not doing the work yourself.
I have an E61 for might winter warrior as well I think you may be underestimating on the weight lol. Panoramic sunroof? Anyways I would go the 8HP70 route if I were swapping that one especially. That being said the 45x has handled around 600ft/lb in my E90 just fine. I do wish I had the extra headroom though. I believe you will need an adapter plate going that route which will lead into a custom driveshaft from what I saw in my E90 xDrive. The E61 could be more forgiving in overall length but it’s an unknown until you get there with significant additional costs associated. You could invest in beefing up a 45 some too for an easier install but that is pricey as well.hp70 xdrive for a 08 535 wagon, being as heavy as it is, I think its smarter to go for the larger unit even if I dont think i'll make a bucket of torque. Thoughts? Would a hp45 tolerate 650ftlbs and 4300lbs? Its the easier swap, but I dont want to bother if its just going to burn up.
I've been trying to gather information on this and I havent found anything searching. I see a lot of non BMW awd transmissions on ebay. Is that just completely off the table? Should I only be searching for BMW versions? Is there a one stop shop for a 70 xdrive swap kit?
I have an E61 for might winter warrior as well I think you may be underestimating on the weight lol. Panoramic sunroof? Anyways I would go the 8HP70 route if I were swapping that one especially. That being said the 45x has handled around 600ft/lb in my E90 just fine. I do wish I had the extra headroom though. I believe you will need an adapter plate going that route which will lead into a custom driveshaft from what I saw in my E90 xDrive. The E61 could be more forgiving in overall length but it’s an unknown until you get there with significant additional costs associated. You could invest in beefing up a 45 some too for an easier install but that is pricey as well.
The Canformance wiki says all F series 1st/2nd gen trans are supported. I wouldn’t get too hung up on build date rather than mileage. I personally don’t think the price difference is worth it between the 45/50 as far as their ability to hold power they are identical. The 45 may even have an advantage since they switched to a “more efficient” oil pump on the 50 that runs at 1.5 bar less pressure... You could read about it some here https://www.car-engineer.com/second-generation-zf-8-speed-automatic-transmission/Yeah, whatever goes in it will be stock, i dont like tampering with oem internals in anything.
The reason im concerned about the larger 70-75 swap is the extra parts and steps to take, where as a 45-50 is nearly bolt on.
My car on the scales is 4290 with half tank of fuel, so over 4300 with a full tank and 4500 with driver. Yes, it has pano, all 535 tourings do. So yeah, not light.
Do we have a limit to newest model year we can use the 8hp50 from? they made the 335i GT with n55 into 2017, thats a damn near new transmission and with it being almost bolt on, might be worth a shot and see what happens.
Is yours 600lbft at the crank or wheels? Im about the same to the wheels.
Probably easier to send Ken an email, so he can look into itAnyone? Dead project? available? any kind of info? web looks alive but i am not sure it actualy exsist..
The trans cooler lines need to be adapted but there are several options available for that already. The 8HP ports are larger but uses the same style connection. You also need to swap out the cable shifter for an E-shift style. That was all for me hardware wise. I am E90 LCI so there may be some unforeseen small differences. IIRC pre-Lci/Lci have different rears/offsets. Best bet would be to compare part numbers between drive shafts to be sure…
I was able to get to the drag strip a couple weeks ago. Track prep was non existent so my 60ft really suffered doing 1.9’s all night either babying it or blowing the tires off leaving around 5psi. I think 10’s will be possible once I get to my normal strip if I can pull off 1.6’s. Car is much more consistent now as far as shifts go it didn’t miss a beat. Not bad for a junkyard swap with 125k on it and only a filter/fluid flush. Car should be in the 550-600whp range based on trap/weight and still fairly conservative on the tune. I made a little video of the difference between launching both ways. I still have it very biased to the rear with xDelete to protect my front end parts but may need to bring some back to hit my goals.
You can PM me if you have questions. I will try to answer them but Ken is really the guy to talk to. Best way for him is probably on the Facebook groupFirst off, thank you for all the info you have provided! This is huge.
Is there any chance we can chat on the phone or just through PM? I want to get this installed asap. I do have a pre-lci, so there may be some small differences, but I would love to pick your brain.
Thanks, I really appreciate it. Are you by chance using your original final drive gears and ratios or did you change them?You can PM me if you have questions. I will try to answer them but Ken is really the guy to talk to. Best way for him is probably on the Facebook group
MR-KRAKAI was trying to hold off on making a post on this until after I got to the track but... I’ve been running the CANTCU for about a month now E90/N54/xDrive 8HP45X (first ever?) I am impressed with how far the software has come in just the short time and how fast Ken was able to implement various fixes (and improvements) throughout the Beta. There was plenty of bugs to work out in the beginning mostly Gas vs Diesel issues and I know I was the Bane of Ken’s existence for a while but it all paid off in the end. The Software is very polished now and he’s still pumping out the updates. While I am still working on the DME tune (IJE0S xDrive life) side of things as time allows, I can say this implementation is as close to oem as you’re going to get for this type of swap. By far best “mod” I’ve done so far besides upgraded turbos. Second gear gets placed in a very nice ratio between the 6hp’s 1st/2nd for launch and just DD duties in general. There is also maybe a little placebo effect going on banging through all the gears so quickly when you’re used to the long 6HP. It definitely livens things up a little more.
I opted to try this unit over the others for a few reasons. First I couldn’t find one example of the other options out there having functional xDrive outside of a reply to a YouTube comment saying it would be possible. Secondly you are using the oem TCU in this case programmed by ZF and combining that with XHP which I feel has proven to be quite reliable over the years. There has been far more testing than all the others out there with this combo. Direct control of solenoids/full standalone I’m sure has its advantages over this at racecar level but for me I wanted to be able to hand the keys to my wife without worries or her telling me somethings not right. Another factor was the language barrier vs the others. While Ken is based out of Finland he spoke perfect English and was not an issue at all even with al the technical speak. Time difference was the only thing that got in the way sometimes but I’m not sure if the guy sleeps anyways? None of that should matter now since the unit is plug and play past initial setup, this was all during testing.
For the physical swap itself the only modification required is adapting of the smaller 6HP oil cooler lines to the larger ports of the 8HP45. There’s several offerings out there like th adapter plates take your pick. And for the exhaust mount to the transfer case I had to find just the right length bolt/bushing washer/combo to make the stock bracket work because the pan seems to sit a little further back than the 6hp. Otherwise a direct swap. This applies when converting from 6HP19/21 to 8HP45X from an N55 powered F10 in my case. 8HP70 will require an adapter plate setup and I may regret not taking that path once I really start pushing it but time will tell. So far holding up ok in the 550-600whp range for me. I was concerned about the additional length with xDrive being uncharted territory. I didn’t have one to compare but if it were to add even a few mm To the overall package I suspect I would be needing a custom driveshaft at the very least. The 8HP45 is largely the same trans used on the B58 powered stuff now and they seem to be doing ok at least up to my power goals currently. These trans are cheap and readily available if you shop around but I definitely do not want to have to do this swap again anytime soon at least without a lift…
Next up I will hopefully get back to the drag strip soon, maybe tomorrow to see what kind of net ET gain there is at the same power level as last year. I suspect it should be significant from my 60ft alone. Here’s just a short video I made for internet proofz please don’t make fun of my skills lol
I’d be happy to answer any questions on the swap. This is not a paid promotion, no one put me up to this. Just a happy PITA customer![]()