E46 | N55 swap overview BMW ALL FACTORY PARTS (Install only) PART.1

Hello everyone,
Enjoy the first ever e46 n55 swap done with all factory BMW parts besides intercooler piping & exhaust.
No custom engine mount or transmission mounts needed.
This can work with the N54/N52 6 bolt crank engine aswell.
(may need additional modifications)
Subscribe if you would like to see more content soon.
N55 to e46 chassis parts list
will be updated frequently.
Instagrams: Tecknowtech
Z4 n52 engine support arms
-P/n driver side 22116769321
-P/b passenger side 22116769322
Stock e46 engine mounts
-P/n (qty2) 22116779970
E46 6 speed gear box support & bracket & rubber bushings.
- support P/n 22316760531
⁃ bracket p/n 22316760532
- bushings P/n (qty2). 22316799331
E46 6 speed linkage
Shifter arm
-P/n 25117516284
Shifter arm bushing
-P/n (qty2) 25117519670
Selector rod
-P/n 25117523847
Shifter lever
-P/n 25117528881
check realoem.com for extra small parts
2006 e90 330i/530i/z4 6 speed transmission (37bz)
P/n 23007565853
use your e46 bellhousing bolts
(E46 37bz will not work)
N55 flywheel 6 bolt
P/n 21207640733
E46 m3 pressure plate
p/n 21212282667 buy a used one if possible.
Stage 3 sport clutch disc
www.ebay.com/i...
E46 6 speed driveshaft
P/N 26117523913
E46 m3 power steering reservoir lines and cooler pipe is needed to relocate reservoir to back of the driver side frame near heater valve
Ps cooler pipe
P/n 17102282339
reservoir lines
P/n 32412229369 & 32412282353
⁃ Note - you will use your e46 U shape PS line and bend it slightly to bolt up to e90 power steering pump.
E46 eBay diesel Intercooler 300$
a.co/d/5Mr4xcz
N20 turbo rubber charge pipe (goes on turbo)
p/n 13717597591
(needs to be cut in half)
2.25 45deg tubing is needed from auto parts store (attaches to n20 pipe)
Google this
SureBilt 2 1/4in I.D. x 2 1/4in O.D. 12in 45 Degree Elbow
Or
www.siliconein...
(This will align perfectly with the diesel intercooler)
F10 n55 boost pipe is needed
(sits closer to engine) 80$ if you check on amazon
www.ebay.com/i...
Coolant lines needed
(upper and lower) From Auto parts store
Lower coolant hose (GATES 25482)
www.gates.com/...
Upper (GATES 23882)
www.gates.com/...
BMW coolant line hose clamps qty4
P/n 07129952119
Connector block up plug for upper radiator hose google part# 7799184
N54 heater recovery hose is needed for clearance purposes.
P/n 17127548230
(buy a used one if possible) plastic center pipe needs to be removed and capped off.
Engine mount ground cable is relocated
- (Use your m54 positive starter cable)
attaches to e46 preexisting grounding point The other end bolts up to water pump ground.

[@adrienpearson9901]

Can you make a video on just the wiring?

[@DreesDae]

Please KEEP GOING youre doing exactly what I want to do with my e46 sedan

[@jon_eliz99]

Would you say the wiring side of things was hard? I plan on N52 swapping my e36, and assume the wiring will likely be somewhat similar Will you make a video about how exactly you got the N55 ECU to work in the E46?

[@TecKnowTech]

@@jon_eliz99 for the n52/n54 There’s a company on eBay That’s sales the harness swap kit!!!! www.ebay.com/itm/143901394744?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3iaTpqv0R6-&sssrc=4429486&ssuid=_mErjLJHQs2&var=&widget_ver=artemis&media=COPY Direct message them and they will make one for you ✨

[@LapDeleted]

Just thinking out loud, a top mount turbo kit would solve the need to trim the engine mount wouldn’t it?

[@TecKnowTech]

@@LapDeletedWe are just showing you what you can do with factory parts. Although top mount would look pretty cool 👌

[@Shari_Tejp]

I came here from your comment to another video, would love to know more about wireing/programming/ecu

[@TecKnowTech]

@@Shari_Tejp not something we can teach at the moment but there’s other companies that make conversion harnesses www.ebay.com/itm/143901394744?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3iaTpqv0R6-&sssrc=4429486&ssuid=_mErjLJHQs2&var=&widget_ver=artemis&media=COPY

[@shazreenshahrul1821]

Hii no wiring guide ?

[@TecKnowTech]

No, not at this time. The wiring can be complicated if done incorrectly, can possibly damage modules. I’m offering custom harness to locals in California only at this time, maybe in the future we will expand…. Although there’s another company in Portugal 🇵🇹 that’s making harness kits for n54/n52. If enough of us request a n55 kit they can possibly start making them. Here’s the link send them a message.. www.ebay.com/itm/143901394744?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3iaTpqv0R6-&sssrc=4429486&ssuid=_mErjLJHQs2&var=&widget_ver=artemis&media=COPY

[@rayrongarage]

​@@TecKnowTech Is it possible to do the opposite? I have an N46 engine in my E90 and want to swap it for an M52

[@jkrueger27]

You are a pioneer and a gotdamn hero. Please keep the content on this build coming.

[@seankaine2411]

For about 4 years ive been trying to find a complete video. On a swap like this. My bro you earned my subscription..💯💯💯

[@VENT8699]

Straight up! My M52tu is on its last leg, 125 compression on all cylinders but 4 which is 3psi off. Car doesn't burn oil and still has power at 247,xxx miles but it's time to swap it and I figured a N55 swap would be the route. Unfortunately, there's next to no info on the swap. Its wild!!

[@VENT8699]

After further review, there's a lot he leaves out. Like wiring.

[@seankaine2411]

@@VENT8699 😂😂😂 I have a e46 zhp coupe buts it's an automatic. It has now 127k.

[@VENT8699]

@@seankaine2411 Thats awesome, not going to lie I bought my car for like 500$ and have had it for 5 years now. Granted ive spent a fair amount of money replacing and upgrading stuff. Like a torn subframe from drifting lol 😅

[@seankaine2411]

@@VENT8699 that's not bad bro I paid 2k for mine it had a dent on Passenger side quarter panel and on the passenger side fender. I'm still new to bmw platforms. I've been in the Honda scene basically from the start. My baby is a 93 Honda civic hatchback awd with a k24 turbo. Fully built took like 5 years to build.

[@lorrisl5026]

Awesome build, the e46 diesel part is very interesting, along with the m3 ones. Gives me ideas for my e46 supercharged build. The only thing i dont get is your massive hot air intake going over the car into the void of the driver side. You should probably try to get the filter around the fog light area on the turbo side, or behind the headlight, with a tube coming from the fog light to the filter like ill do on the driver side. I wish i could install this 6 spd on my m54. They seem way less expensive than true 6 spd swap from an e46. 5spd to 6spd swap im probably looking at 2 thousand euros... but the 3.46 diff hits hard on the highway.

[@TecKnowTech]

Thanks Lorri, I don’t recommend supercharging the M54 to anyone. It’s a heat soaking machine. Sadly, the gains are very minimal. We tried both turbo m54 and SC in the past and the n55 swap is by far the easiest to work on with no tight spaces.Everything is very accessible unlike the m54. Don’t get me wrong, the m54 is a great engine if left alone and is very capable, if built correctly. I will always love the m54 lol. We are well aware of the hot air intake. Eventually we will plumb it down by the fog light, although IATs are still below under boost. There’s still work to be done ☑️ along with a/c and heater lines. By the way you can use this same transmission (e90 37bz on the m54 as well. Here’s the link 🔗 kzbin.info/www/bejne/gKCcgWpqm62Kr5Isi=XlSifbOAY-qpNHR7

[@bimmerwrecker1513]

rod bearings spun happens bacause of electrical oil valve,i locked it 30 times on n55 engines, let me know if you need info

[@TecKnowTech]

Please dm me on instagram. We had a feeling that valve is the culprit. I heard even some of the high hp b58 guys are leaving the valve disconnected defaults to max oil pressure.

[@bimmerwrecker1513]

@@TecKnowTech bimmer.wrecker

[@raeesafrica8490]

What engine mounts do you use for it because I’m doing a n52 swup on my e46 and the mounts aren’t matching

[@TecKnowTech]

@@raeesafrica8490 see description

[@raeesafrica8490]

@@TecKnowTech yea , but what I’m trying to understand is , I tried fitting it but the mounts on the motor passed the mounts on the car

[@TecKnowTech]

@@raeesafrica8490 direct message me on instagram

[@CALLACI]

I’d really like to know what was done in terms of wiring to get the engine to run and to have all the signals to the dash working.

[@TecKnowTech]

@@CALLACI it’s a very tedious process… But there is another option www.ebay.com/itm/143901394744?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3iaTpqv0R6-&sssrc=4429486&ssuid=_mErjLJHQs2&var=&widget_ver=artemis&media=COPY

[@aombarbor]

How many miles on that engine is that RB bad for how many miles it has or normal?

[@TecKnowTech]

@@aombarbor I think it was 134k on this engine. Typically you do not want to see any wear. These look like the first layer of the bearings material was starting to show. I always recommend them whenever someone come in for an oil pan gasket replacement. Just for peace of mind!

[@blrn54]

Cool swap

[@eduardolima8560]

Do you know what you're going to do for AC yet?

[@TecKnowTech]

So far it Looks like only one a/c line needs to be made for the e90 compressor to work with the e46 chassis.

[@eduardolima8560]

@@TecKnowTech and it would work with e46 climate control?

[@TecKnowTech]

@@eduardolima8560 yes with a wiring specialist can-bus module www.wiringspecialties.com/bmw-e46-rb-canbus-module/

[@raeesafrica8490]

If I want to put a n52 325i motor in my bmw e46 what do I need to change body wise ?

[@TecKnowTech]

@@raeesafrica8490 N52 should drop right in the same way as my n55. remember I’m using N52 z4 mount brackets, you can use the n52 flywheel & clutch kit with that set up and the n52 6 speed transmission (37bz). Here’s the swap harness For that set up www.ebay.com/itm/143901394744?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=3iaTpqv0R6-&sssrc=4429486&ssuid=_mErjLJHQs2&var=&widget_ver=artemis&media=COPY

[@raeesafrica8490]

@@TecKnowTech so it shouldn’t be a issue if I put a n52 325 in my e46 Do I need like the key and cluster too just in case ? And exhaust has to be changed too and all that ?

[@TecKnowTech]

@@raeesafrica8490 the link to the swap harnesses tells you what you need for it to work. yes you will need to make the rest of the exhaust

[@raeesafrica8490]

@@TecKnowTech thank you sir I really do appreciate it , my dads tired of the 4 cylinders his broken already 2 blocks in past week

[@haitian_hops]

@@raeesafrica8490 I wanna see the progress of this, its going to be sick your got a instagram or something

[@tysautoworksPerformance]

This is dope ! What made you go with this setup ?

[@TecKnowTech]

The video speaks for itself 🫡! No expensive aftermarket engine/transmission mounts or driveshafts & the car drives like factory which is what we wanted. We found it very easy to fit one of these engines into a e46 chassis. It’s a simple engine being that it’s single turbo with no clutter. Anyone that’s mechanically inclined can install one in a few days.

[@tysautoworksPerformance]

@@TecKnowTech fire bro ! Definitely a dope setup 🫡💯💯

[@Sharas95]

Love the build! Do you gonna make more parts of the build? 🙏

[@TecKnowTech]

Yes hopefully soon we will go over the intecooler piping set up

[@iKeepITB]

Can u use same😅 engine mounts to do n54 swap

[@TecKnowTech]

I'm not sure 🤔 we would have to test fit and see

[@fastboatster]

Great. Would also be cool to see a B58 swap

[@TecKnowTech]

That would be cool! Unfortunately that engine requires more fabrication, time and money. This is why we picked the n55 mainly for it’s simplicity.

[@fastboatster]

@@TecKnowTech I’m sure you will be able to do it eventually) I am also glad you picked an n55, and not the n54. Too many people are poopooing the n55, but it’s good if done right and sounds awesome. Great job!

[@Tony-RS3]

@@TecKnowTechwhat makes it more complicated?? Mounts? Electrical?

[@TecKnowTech]

@@Tony-RS3 I know we can do it, it’s the cost 💲 that doesn’t make sense. Definitely more modifications & time and it’s not something a regular joe like us can just do in the garage. The n55 on the other hand can be done at home with most of the parts being plug and play and it being single turbo makes everything so much simpler and easy to work on 🔧. All we need is A/c function 😅

[@Tony-RS3]

@@TecKnowTech ok I’ll loom into a n55 build, e46 with 600-700whp is enough anyways! Need more hybrid setups tho, is there more room on the turbo side? And you got the cluster going I see, still need the e9x cluster connected or not?