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S65B40 Swap into E86 M

2003 - 2009, roadster, coupe, facelift
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Apollo
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S65B40 Swap into E86 M

Post by Apollo » Fri Apr 14, 2017 7:41 am

You guys wanted a thread here, so now you have it. Yes, this is into an E86, but the front subframe on the E46 is very similar and I'll be engineering my swap kit for the E46 as well. Electronics are also similar and I'll iron it all out. I've taken the time to paste below everything from the main threads on ZPost and Bimmer Boost.

03-15-2017

I picked up a Z4MC the other day (more on that later) and I'm proceeding with a build.

I might not post everything about the engine build, but it will certainly all be on Bimmer Boost.

I'm starting a project build using the S65 platform. My first thought is to build a stroked motor and slap on a nice supercharger to make "big numbers". The problem is, there's a lot of information around about builds such as this and I'm left rather apprehensive. Admittedly, I'm not an expert engine builder, nor am I a physicist or mechanical engineer so bear this in mind when evaluating my statements. I am in no way attempting to be make any statements written in stone. I'd like to hear all of your feedback and thoughts on this matter to try and get a better idea of what to do.

Here's where we are at so far: I have the donor car for the build so at this time all we have to do is do the build. I'm still in the planning phase of this build and the only thing I have gotten is a block. Specifically, I just picked up a block from ebay for a very good price that was hydrolocked. Since I plan to build a stroked engine I figured this is no big deal at all and any machining/sleeves would render this a very usable block.

To elaborate on my goals a bit more, I really would like to get at least 700 wheel. My first plan is to go with the PPM stroker kit and a compression of 10:1. I've been speaking with Peter Helmuth from PPM in Australia and he has advised me that he can sell me the same stroker kit they use in their 4.8L race motor. It's an 86mm stroke and a 94mm bore. This sounds absolutely nutty awesome and it's something I'd like to do. He advised me that I don't really need sleeves even with running boosted. Now, this is where my apprehension comes into play. I'm not too sure about all of this. It seems to me that alusil is not exactly the strongest material in the world and sleeves like Darton makes are really great for running in boosted motors. My main concern with sleeves is excessive temperature retention, but again I'm no expert here.

Before I tackle the supercharger, I'd like to lay out my stroker build first.

I've attached some pictures of the block I picked up. One of the pictures details a repair that was one on one of the cylinders. Everything looks fine here to be a candidate for a stroker build like this. Thoughts on this block? I don't see anything that jumps out and throws a big red flag.

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I ordered a ton of parts for this engine build and picked up several big items locally. Pictures to soon. This build is happening guys! I'll make sure to document all my steps and results for prosperity. Maybe the motor fails, maybe it does not. We'll just have to see, but I'm giving the stroker/supercharged motor a go. I'm sure I'll get a lot of flame over certain aspects of this build, but oh well. Gotta live life the way you want.

I just bought the car that will be being swapped. I'll be picking her up this weekend. Reason for getting this car: weight. It's much lighter, shorter wheel base, perfect for building something with great handling. The torsional rigidity is 32,000 N.m which is far more than most cars. The reason I'm building an S65 for this car instead of an S85 is weight and size. With the S65, it will sit further back in the bay than the S54 and weigh much less until I throw on the supercharger which will probably get it to be only a few more pounds heavier, but remember it will be further back for better weight distribution.

Believe me, I wanted to go with the S85 for the V10 sound, :bow: but too much weight.

If anyone is wondering what is going to happen to the S54 and trans, I may offer it up for sale when I get closer to pulling it. We'll have to see. I have a feeling grabbing a prepped rolling E30 and dropping in the S54 would be a fun treat. However, if anyone wants to reserve the S54, I am open to offers. It has around 90k on it and would be perfect for a track build. I won't be needing the 6 speed trans either.

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More updates and pics to follow so follow this thread! :thumsup:

03-16-2017

I picked up an intake manifold (I'll be running for a month or two on the stroker before I SC), headers, and tons of other goodies as you can see pictured. I have parts coming in for the rest of the week and even next week. The block will be heading out next week with any luck and we'll get this show on the road.

I almost have all the random tid-bits here and there to have a running engine when I throw the top end on my built bottom end. I'll eventually build the top end with cams and better springs, but not for now. Just bottom end.

A bit of a side note: I don't plan on running stock headers forever, I mainly got them because they were a good deal and should help me fit the motor in the car. I have no idea if stock headers will fit, but we'll see. I'll report all my findings in depth and with measurements so anyone else can follow in my foot steps.

I'll have the DCT trans, complete heads, and other parts next week. I'll be sure to include some pictures. Getting the DCT to work in this car is going to be a nightmare. I'm thinking I'll just throw in all the E9x electronics and gauges and get it to "fit" nicely with an OEM look.

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03-17-2017

Okay so you're probably wondering why DCT... Because it competes better and any prudent individual would conclude such. Yes, 6 speed is more fun, but I'm building a car for competition, not fun. Anyway, it will be ****ing cool to see a running DCT in a Z4MC that is OEM feeling/looking and clean. It could be a helpful DIY for anyone attempting to swap DCT into any 6 speed car and getting it to go in cleanly.

Update time!

Here is a pic of the complete head assembly I'll be picking up. I got everything for a reasonable deal so this will really expedite the build. Brian from VAC just got back to me today with a quote on the bottom end. It's expensive but VAC is a top shelf shop with top shelf wrench masters. I'll update more about the engine build as we get closer to sending the bottom off. I'll update this thread again Monday with the project car pics and more part pictures. I plan to assembly everything on a stand to make sure I have everything I'll need. It helps to visualize it all first :thumsup:

As a side note, you guys can expect things to keep moving at a good pace. The funds for this project have already been allocated so there won't be any hold ups due to money. If there's a hold up it's going to be with shipping or manufacturing of something.

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03-17-2017

EDITORS NOTES: I may not be proceeding with the below. I've been doing some research with the Z4 DME and I believe I can get most things to work together nicely retaining most of the Z4MC's OEM goods.

Here's the plan: I've got an E92 donor car with complete body harness and all electronic modules with options I want like Comfort Access and such. My plan is to basically pull out the entire Z4 electronic suite and harness leaving behind only lights, door locks, window switches, etc. I'll then be dropping in the E92 harness and modules and splicing connectors where I need them. This will result in a "drop in" electronics swap. I need the E9X M3 gauge cluster and some of the other electronics anyway so this is the easiest way.

You may now want to know how we're getting it all to fit... Well, I'll be fusing parts of the E9X dashboard with the Z4 dashboard. For instance, the gauge cluster tower part of the dash from the E9X will be cut off and fused in with the Z dash. Along with a few other areas, I'll then finish the dash in a leather or alcantara finish. I may remold the dash for a lighter version, we'll see. I may just know it's frankenstein underneath. :D

If you have any more questions I'll be sure to answer them. I want to make this as easy as possible for me so I'll be carefully documenting this process for anyone who wants to attempt or do something similar.

03-17-2017

As far as I am aware the DCT and manual transmissions attached the S65 (I don't actually know which model name) are the same dimensions where they bolt in. So a mount I make for DCT should work with manual. If you guys are serious about doing this swap too I'll buy a 6 speed transmission to make sure and take the time to R&D.

Who all would commit to something like this? If you were to go 6 speed, you would not need to do many funky electronics stuff and the swap kit would be driveshaft, tranny mounts, engine mounts, and probably a few other small brackets and screws here or there. Perhaps a modified engine harness to get everything to work with Z4 electronics. As I develop this I'll note down what is needed.

Swapping in an S65 is actually an incredibly intelligent move for this chassis. It's lighter than the S54, performs better than the S54, and distributes weight better. It leaves more room in the engine bay for many additions.

03-21-2017
F360C;21432608 wrote:With the 6 speed it might be possible of going the route of not integrating all the e9x modules into the e86 since you don't have to worry about the DCT ECU/integration. If I remember correctly when Rogue engineering did the S62 V8 into their Z4 (non-M) Roadie they had a shop called North East Motorsport wire the z4 harness into the S62 DME. Then used INPA to work out the coding.

I know our DME is different from the E46 M3 DME but I also understand that it is very similar to the S85 DME which I assume is sorta close to the S65 one.

My brother was saying he talked to a guy at SEMA that worked for a shop in Chicago that did an S85 into an E46 and the guy also mentioned that it would be even easier doing it into an E86 M because of how alike the DME's are.

I agree the V8 is such an interesting swap for this car because it drops weight and moves the engine further back in the chassis.

You're car is going to be a monster even with out the blower!
I agree. Stroker first, the supercharger next. But it would be a monster even without being stroked. It's already a quick car with a stock S54. I'd like to get more information about that S62 swap as it sounds like I could learn a lot and it's good to hear the DMEs may be similar. I'm still fighting with how I can integrate everything. I'll work through it and hopefully find a good option but you are right, if I just went with a 6 speed it would be an easy swap.
Punisher3.0si;21441031 wrote:Cool project. I love it when people do engine swaps that keep it in the family. It's very tasteful. This platform is perfect for a V8. I'd love to hear 0-60 and 1/4 mile numbers when it's completed!
The only engine that should have been dropped in the Z4MC is the S65 imo. It's the perfect fit. I'll be running the car a lot so you'll get lots of video and pictures of time slips :happyanim:

UPDATE

The car has been picked up and enjoyed for the last few days. I forget just how great the S54 really is. That engine is like the S65 and even has many similar sounds. Hit 4000 and you're off to the moon.

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The car is in very good condition overall for a 10 year old car. There has been a minor accident in the past on the front right and the repairs were not done too well so I'll need a new passenger fender, but you probably wouldn't tell unless it was pointed out to you.

I ordered a ton of little things for the car that are needed like new ///M badges, brakes, trim pieces, screw covers, etc. I decided instead of doing a BBK for now I'll be using OEM rotors and a slew of pads to test out. I'll pick up a second set of OEM rotors and pair them with some PFC 08 pads and get some wheels I don't really care too much about for track days. Street pads are going to be DS2500 to start. Another one recommended to me was the Stoptech Performance pad that I'll try too.

I know what you really all want to see. You all want to see most of an S65, entire body harness, and a DCT trans fit in a Z4MC

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This is a picture of my block and one of the complete heads. I picked up complete heads (head block, cams, vanos units, valves, springs, valve cover, all sensors, and coil packs) for $500 total for both banks. Ignore the mess. Garage needs to be cleaned out.

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Here is a picture of the other head assembly and a few of the parts seen before and the DCT trans I picked up for $900. I believe it only has 20,000 miles on it. The assembled engine and trans pictured are from another project being worked on. Nothing too exciting, just regular maintenance.

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I'll be piecing everything together soon to make sure I have the bulk of the important stuff so I can send it all off to the engine builder. I'm still debating if I want just the bottom end or assembled or the entire thing. Price will determine this. I'll be taking the entire engine to the builder in this Z4MC just for the lols.

03-26-2017

UPDATE

My S54 has blown rod bearings. Judging by the amount of material in the oil filter, I might of even spun a set. Not great news but not too bad as the swap is going in soon. I ordered a new rod bearing set to drop in to keep playing with the wonderful S54 and have it rebuilt for resale. Also threw on new rotors and pads and pulled my calipers off for a rebuilt and recoloring. I found out the driver side front caliper was semi-stuck which explained some of my shuddering when braking. Another worthy mention about this car is that there is no good beer parking spot anywhere on it.

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I broke down my S65 heads and started to go through them to look for any issues. Both sides in perfectly good health. I'll be sending them off to get cleaned better than they are but I took some time to try to clean the valves a bit to get an idea of how build up on the S65 works. Seemed pretty standard. They started to clean up really easily and it goes to show the benefits of running cleaner fuels. If any of you have torn apart motors running non-premium fuels you'll know the horrors.

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Here are a few bonus pictures. My second block, my block in use (on the stand) and some more S65 head porn shots

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In addition to tearing the heads down I also started to design my motor mounts and get some headway done there. I did some measuring in the car and started to plan how the transmission and engine will sit in for best effect. Pics below. Some of you might think I'm crazy, but I have always used foam board from a place like Hobby Lobby or Michael's as a method of designing the mounts first. It's nice to get a physical mock up that can be easily translated into CAD for machining. This lets you design what you need and make sure it all fits in real time.

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If you're wondering about how to keep the engine still use a proper brace to keep the engine in place. Lifts don't work too well in my experience and a brace lets you get it more level. It should be noted that my engine is not in the bay yet, but I wanted to start on a template for the engine mount connecting to the block. I think it might be possible to leave the steering column and stock sub frame unmolested as well if my measurements are right. More to come soon.

Bonus pics: If anyone wants to know what happens to your walls when you hydrolock your motor, this is what happens (side note: it looks like a rod went out too):

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3-29-17

I picked up my heads from the machine shop earlier. They were amazed at how straight the heads were. No warpage. Even 02 could not shimmy under anything. Once I got the heads home I sealed them up for storage until my bottom end is done. I've decided I'm pulling the trigger on a 4.8L stroker for this block. Exciting times! I'm still in negotiation with VAC on some of the finer details of the bottom end build. Hopefully I'll get this sent off for getting sleeved and assembled soon. I'll be waiting for my stroker kit first though.

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The heads still may look a little dirty in some areas but it's just loose debris sealed in by the oil that was put on the head to keep dust and dirt off. A simple wipe will carry it all away.

4-8-17

Alright kids, here's the deal. I know you don't want to see this project fall to the way side and take months. My stroker kit is being manufactured, block getting machined and sleeved, and still working out my SCer system, but I don't want to leave you all without updates for MONTHS while I wait for the motor build to finish and then drop it in the car. Instead, I decided today I would go buy an S65 that is already assembled so I can get it in the car and get you guys some cool burn out videos! I'll have the S54 out of the car this weekend and by next weekend I'll have the S65 running in the car with any luck.

If any of you guys want the old S54 let me know. The bottom end will need a rebuild but the rest is fine. Transmission can go as well.

In addition to grabbing the new motor I did a little more work on some of my parts for the motor builds. I'll grab more pics soon.

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4-10-17

As mentioned before I have a gorgeous S65 sitting in my garage now. When I was speaking to a few professionals about doing the electronics they suggested I get a used motor as it would not be wise to have to sort out drivability and electronics issues on a brand new stroked and supercharged motor that is untuned. I did not think of this so this is a big reason why this used and assembled S65 is here today. I also want to make Bimmerfest West. Like I said before as well, I want to keep you guys entertained and no one wants to wait months until something cool happens :thumbsup2:

If anyone is curious about any measurements on the S65 please let me know so that I can do them while the motor is still out of the car.

Enjoy a few glamour shots of the new bae

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Here we have the DCT trans and S65 playing Tetris while we got the car in it's swap spot. The beer in the background was planned to be consumed but instead we chose to get much further. Of course we found motivation and went in to almost get the motor out but stopped for the night to pull it out in the morning. Beer was then consumed eventually :beer:

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The motor tilted on the way out and I found out then at that moment there was also a large hole on the passenger side too :facepalm:

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Here is the S54 in question

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Some shots of the damage. I'm still deciding if I even want to pull the bottom end...

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If any of you have ever done swaps in a confined space you'll know the need to get the car rolling again to get the work space cleaned up. Maybe it's OCD :clueless: And yes, trans is still in the car because I want to see how the S65 fits with a trans in the car. The DCT is too heavy to work with easily so it's much easier to leave the 6 speed in for now just to see how far back the motor can go.

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Cleaning things up...

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Lot's of M pride around here...

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It's like like that one special moment right before things get feeling intense...

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Closing up shop for the night. More to come tomorrow.

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M3_#67;1067629880 wrote:Didn't the S65s starting with 2011switch to the Tin bearings? Meaning the oil analysis is useless?
That is absolutely correct. The new bearing material does not show on a conventional oil analysis but truth be told physics and laws about conservation of energy tell us that the material does not just disappear so a more advanced analysis WOULD show the material present, but I digress.
BTB;1067629762 wrote:I don't recall ever hearing about an S65 recall either...

I thought the S65 (all of them) had super tight tolerances which made them extra sensitive to bearing failures... kinda worried considering I see people getting new bearings on pretty low mileage cars and my dads is coming up on 70k
This engine is at about 74k. You guys are getting me to want to do rod bearings now and I just might. The paranoia from my S54 is setting in now...
BTB;1067629760 wrote:That S54 damage is pretty gnarly... so you got the car with spun bearings, replaced them, and then it went boom? Are you just gonna part out the head and rest of the engine?
I figured it spun as the tabs on the back of the shell are missing. I got a rod knock, tore it down and did the rod bearings to spec and then ran the car and pretty fast threw the rod and piston for cylinder 5. I knew by the damage of the cylinder 5 rod bearing the engine might not last. I was hoping it would hold up but I was mistaken and made a poor judgement call. In hindsight I should not have done this and just had it rebuilt or sold it before I put holes in the block. I'll say it's a lesson learned for certain.

I probably would not have pushed myself to go pick up this used S65 to get the show on the road sooner if I had not blown the S54 so at least in the spirit of a timely project this may have been good for all of us. If this was some crazy engine like an F136FL or something I probably would not have even done rod bearings but rebuilt it on the spot.

That brings up another point, for anyone reading this or lurking I just bought an F136E long block. I was debating doing something with it sometime in some car I don't have yet :shifty:

4-11-17

Here is the deal. The S65 block and oil pan have been bolted together and placed in the car for fitment purposes. I am delighted to declare that the oil pan fits perfectly in the E86 without any compromises. The only issues I see are clearance for the headers on the driver side due to the steering rack. I'll allow the pictures to explain everything so far.

First up we have this great option for keeping dust out of anything

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As you can see here workspace is at a premium, but I'm getting this s**t done. No ****ing around for me. Swap comes first.

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Here we have a spare block I had laying around just for this purpose of test fitting. It has a cracked main bearing seat so no worries if I smack it around a bit.

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Time to get a busted oil pan on my busted block for test fitting purposes. I got the block for free and the pan was dead cheap so I HIGHLY suggest getting busted parts like this for mock up practices and getting things in order so you don't mess up your nice new motor.

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In we go...

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I already know one of you wise asses is going to mention something about the S54 transmission still there. It's only there so I can see how far back I can take my block. Relax, I know it won't bolt up, not the purpose.

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I decided to throw on the OEM mounts just to get an idea. Something to note here is if you were to bolt it in like this it would be about six inches too far forward but you could theoretically move the tranny up but not sure why you would. It's cool that the geometry works. This means making mounts is way easier.

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Here you can see if it's mounted in like this just how far from the trans it is

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Getting a little tighter...

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I got it seated right where I want it and took pics. Here is the steering rack and the front of the pan. A perfect fit

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Rear sump of the pan. Perfect fit.

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Subframe and rack clearance. I'll still get it tighter than this but so far it looks like it's made to fix. Even the rack tunnel in the pan fits perfectly

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Let's check that pan clearance as we don't want it too low. Perfect fit. Looks OEM height almost

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Sway bar and front side view. Will the AC clear the sway bar and frame? It appears it will from a quick measurement. I know the AC is an issue in the E46 but I don't think it will be here.

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I have it in this perfect fitment area right now so how does it look all around in perspective of the great subframe and rack fit? Here is how it looks

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You'll notice it does not perfectly line up with trans and it's because it's not perfectly mounted yet or anything and the trans has upward tension on it.

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Does the plenum appear to fit? Let's measure from the top of the engine and see. About 12 inches here....

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Not pictured but it is 9 inches from that same spot above the start cutout to the top of the secondary air pump. From the top of the secondary air pump to the top of plenum is about 1.5 more inches. This is a total of let's say 11 inches which is under the limit of 12 so we have fitment!

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There will be a ton of room between the rad support up front and front of this beast

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Get an engine leveler and swivel link... You will thank me later.

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Engine mounts tomorrow and then DCT trans fitment and hopefully trans mounts as well. :thumbsup2:

Questions? Just ask me.

PRESENT

I hope you all enjoy the read so far. I wanted to eventually move the thread over here as well for more exposure. It's good for the community.
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Smartbear
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S65B40 Swap into E86 M

Post by Smartbear » Fri Apr 14, 2017 8:08 am

Hi, I think that's the most adventurous first post I've ever seen-you seem undaunted by any task rearing its ugly head!
Good luck with your build :thumbsup:
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S65B40 Swap into E86 M

Post by Yorkie Z » Fri Apr 14, 2017 8:25 am

Wow, did I say Wow, Wow :thumbsup:

I don't know where to start so I won't. Awesome project mate. Looks fantastic and I love that you're doing it yourself.

Will be watching this with interest and can't wait to see some videos when it's up and running. :driving:
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S65B40 Swap into E86 M

Post by Chris_D » Fri Apr 14, 2017 8:29 am

Jesus H Christ on a bike! what a first post!
Welcome! Looks very interesting and can't wait to see progress.
Anticipating some interesting views and input from supercharger members such as Guido K et al.
Good luck with the build and plz keep us updated....
:thumbsup:
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S65B40 Swap into E86 M

Post by TonyP » Fri Apr 14, 2017 8:30 am

Wow, just Wow, I admire engineering projects like this, following this topic with real interest.

As an aside, seeing yet another S54 with rod bearing issues is what puts me off buying an Z4M.

Where are you?, I cant work out if you are in the US or Australia.

Good luck with the rest of the build.

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S65B40 Swap into E86 M

Post by Fishy Dave » Fri Apr 14, 2017 8:45 am

8) Brilliant, thanks for sharing. Calling TomK!

Mods, worth moving to M specific?
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S65B40 Swap into E86 M

Post by buzyg » Fri Apr 14, 2017 9:11 am

Well worth the read. Impressive stuff, but then you are named after a God. Welcome to planet Z4 Apollo. :thumbsup:
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S65B40 Swap into E86 M

Post by -Tom- » Fri Apr 14, 2017 9:30 am

Welcome ! Amazing post , thanks for sharing. A Great read and ogle over the pictures. This thing is going to be a beast! I didn't like seeing the chunk out of the s54 though :cry:
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S65B40 Swap into E86 M

Post by bmwaddict » Fri Apr 14, 2017 9:54 am

Epic, love it! Thanks for posting so much in depth info, will be following with interest :thumbsup:
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S65B40 Swap into E86 M

Post by the stripler » Fri Apr 14, 2017 10:22 am

:happyclap:
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S65B40 Swap into E86 M

Post by mjennings23 » Fri Apr 14, 2017 10:34 am

Indeed, very interested to see how this progresses!

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S65B40 Swap into E86 M

Post by Nash3vans » Fri Apr 14, 2017 11:22 am

That is just awesome, watching with envy. :thumbsup:
2005 merlot 2.5 auto.313s.e46 m3 front brakes.Strut brace,poly bush’s front, m front bumper,modified grilles,bc racing coilovers,facelift lights all round,modified rear bumper,s/wheel retrimmed, Merc slk seats. scorpion exhaust, many interior mods.

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paddy wright
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S65B40 Swap into E86 M

Post by paddy wright » Fri Apr 14, 2017 11:36 am

Interesting project, thanks for sharing :thumbsup:
Z4 2.2 sterling grey,Msport seats,retrofit cupholders,cruise,footwell lights,sound gen and mfsw,18"ellipsoids,xenons+light washers,ZHPknob,folding mirrors,3"stubby,update wheel caps,gateway300 ipod, wind deflector to keep the wife happy!

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S65B40 Swap into E86 M

Post by srhutch » Fri Apr 14, 2017 1:00 pm

Love it :thumbsup:
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S65B40 Swap into E86 M

Post by TomK » Fri Apr 14, 2017 2:15 pm

Fishy Dave wrote: Fri Apr 14, 2017 8:45 am 8) Brilliant, thanks for sharing. Calling TomK
Haha, yes I spotted this a few weeks ago on zpost. Fantastic project and something I've been pondering for a while. I'd want to keep the M3 6Mt so any advice you can give for me on that op would be much appreciated!
Best of luck with it. :happyclap:
MC[IB], CSL airbox, Schrick 288/280 cams, 4.44FD, UUC SSK, SS race cat back, AP CP9660[F]/5144[R] brakes, Apex ARC-8 with AR-1 or PS5, KW ClubSport 2-way, Turner spherical arms, PMC uniball rtab, VB engine mounts, Rogue pulleys & RSMs, Tillett B6, half cage

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