Jake's Epic BMW 135i Build Thread! (5+ Years of Ownership)
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Welp, my Spec Stage 3+ clutch started to slip after only 5k miles at 750whp so I was forced to search for another new clutch. The Spec clutch was only rated at 671 tq, I thought it would be capable of holding more power. My search of 1000+ tq rated clutches led me to research twin disc options for the N54.
As some of you might be aware, there is a new twin disc clutch option for those of us with manual N54's. Xtreme Performance Clutch (or XClutch) is an Australian company that specializes in clutches for performance vehicles overseas. With the recent group buy, I decided to give their clutch a shot given the price is much cheaper than the Motiv or MFactory twin discs.
For more detailed information, check out my complete blog post about this topic****. I also included a video at the bottom of this post that shows the noise and pedal engagement.
I ordered the ceramic version of the clutch, which is capable of holding more torque and is meant for track-driven cars. There is also an organic version for those of you who might not need the 1350 tq rating.
I received the clutch a few days after ordering and was very impressed with the quality! It includes the clutch & flywheel assemblies, metal throwout bearing, pilot bearing, flywheel bolts, machined alignment tool and locktite.
The recommended break-in mileage is 1000 kilometers (621 miles). I noticed that the driveability gets better and all noises quiet down a little after putting on some miles. It will never be as quiet or as smooth as a stock clutch... but it's much more capable than the stock clutch.
Noises:
If you install the metal throwout bearing that is included with the kit, it will produce a metallic whirring noise when the clutch is depressed. This does not bother me, but it might bother some of you who don't like noise. Please watch my video at the bottom of this post to hear the noise.
The metal throwout bearing included with the kit is recommended and more robust, but this is the OEM-style throwout bearing if you'd like to avoid the noise: https://bit.ly/2Hy6rX3
As with any SMFW or twin disc, you will have low RPM gearbox chatter. While idling and while driving at high load/low RPM, you can hear it. If this bothers you, you will have to stick with an OEM-style DMFW clutch setup. Otherwise, you can raise the idle via MHD to 900 RPMs or so to reduce the chattering.
Driveability:
I knew the ceramic version of the clutch would be a little more difficult to drive than the organic version, so please take that into consideration when reading my review or purchasing the clutch.
The pedal is stiffer/heavier than stock, but not by much. It's effortless to depress, which is good. Engagement doesn't happen until the top of the pedal during release. My stock clutch and my Spec Stage 3+ clutch both engaged a lot closer to the floor, so this took some getting used to. Installing the clutch stop helped, but still has a large area of dead space in the pedal. Again, watch my video at the bottom of this post to see how much dead space there is.
Once the engagement starts, the window is fairly small. You don't have a lot of slipping area, and this can result in a shuttering take-off until you learn the clutch. I've heard that the organic version is a little more forgiving in this sense. The clutch itself is very grabby, just like it should be. I have no concerns about it holding any power I'm capable of making right now (750whp+).
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I vote to change "epic" in your thread title to "epoch"
This literary pun is far less amusing when typing it, but it's Friday and that's just where I'm at. -
I vote to change "epic" in your thread title to "epoch"
This literary pun is far less amusing when typing it, but it's Friday and that's just where I'm at.What distinguished point in his life would this be the beginning of? Are we witnessing some kind of re-birth? A falcon rising from the ashes? Or is this a distinguishing moment for the e90 at which point it will continue from here in fame or infamy!
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Any improvement in the 1-2? Or is it too early to tel?
twin discs are definitely noisy but really the only option to hold big power. Good vid!
I haven't been able to do a 1-2 shift at full power yet, but it's been good so far. Once the clutch is fully broken in, I'll try a NLS 1-2 redline shift and if it works, I'll be thrilled.
I vote to change "epic" in your thread title to "epoch"
This literary pun is far less amusing when typing it, but it's Friday and that's just where I'm at.I just had to Google that word...
What distinguished point in his life would this be the beginning of? Are we witnessing some kind of re-birth? A falcon rising from the ashes? Or is this a distinguishing moment for the e90 at which point it will continue from here in fame or infamy!
This is all too much for my brain to handle on a Friday...
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not going organic for your clutch? guess you dont care about the environment smh
It was gluten free though, non-GMO.
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Same location, two different lenses
Follow me on Instagram for more photo content: https://instagram.com/jakespence
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Glorious.
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BUT where is the burnout video?
https://www.instagram.com/_jdesigner_/ http://nevertoolow.tumblr.com/
🥳SOLD BMW E24 633CSI - BMW M30B32 🧪SOLD HCH ES9 - 1.3 LDA
👽BMW E30 325IC - Toyota 1JZ-GTE ⏰ HONDA EF9 CIVIC SI - JDM B18C5
☠️BMW E36 318i - Ford 5.0 FE302 🚴♂️ GT-Labomba - 26x2.75 Freeride
🤹♀️SOLD BMW E36/7 Z3 - BMW M54B25 🧓SOLD BMW E10 2002 - BMW M10M05 -
Glorious.
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.
.
BUT where is the burnout video?
Here's one from last month
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As I continue to work on my BMWs, I find myself constantly adding things to the garage to optimize my work space. Since buying the house four years ago, I transformed the 750 sq/ft garage into my ultimate hangout space. In my mind, the only thing missing was a lift. Until I found out about the MaxJax lift system. I have no affiliation with MaxJax, but everything about this lift as been great so far and I want to share my experience.
I had a tough time finding a 2-post lift that would fit in my garage with 8 ft. 7 in. (105″) garage ceilings. All of the 2-post options I found had a minimum column height of 9 ft. or 10 ft., which wouldn’t fit without modifying the ceiling. I didn’t want a scissor lift or a 4-post lift. Then I found the the MaxJax, which has short, portable columns.
In its highest position, the hydraulic cylinders rise up to 89″ with a lift height of 45″ (or 48″ with 3″ adapters)! This allows plenty of clearance between the columns and the ceiling, while offering 4 ft. of working space under the car. The only limitation is the height of whatever vehicle goes on the lift.
Standard MaxJax Features
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Low ceiling height friendly
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Regular 110v electrical plug (no 220v required)
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6,000 lb. lifting capacity
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Semi-portable lift columns
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Adjustable base-plate width
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4″ minimum concrete required
Installation Guide & Video
The included installation guide is pretty comprehensive, but I made an in-depth video showing you how to install the lift in your home garage. I also demonstrate how to route the hoses off the ground to keep the mobile power cart out of the way.
4″ of good concrete is required to install this lift. I used the standard anchors that are included with the kit, but some people prefer the epoxy anchors instead. I mounted the columns 125″ apart from each other, measured from the inside edge. This width has allowed me to lift multiple vehicles with various jacking points.
This adjustable creeper is perfect for working under the MaxJax, since it doesn’t lift high enough for you to stand under it. This short oil drain tank comes in very handy when changing oil or other fluids. I’ve used these short tripod stands when doing suspension work or to help support the car. It is the perfect lift for the at-home DIYer.
I also have a more detailed write-up on my blog that explains the most efficient installation process, with links to all of the tools and accessories that you'll need. Read it here: https://my1series.com/2019/06/13/how-to-install-maxjax-lift-in-home-garage-review-mods/
I would love to hear your thoughts and comments!
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Great garage, Jake! how friendly is that lift for very low cars? looks like driving onto boards may still be required for some
The minimum pad height is 3.5", so as long as it's that or higher, you should be fine. Fits under my lowered 135i, but I can see needing to jack it up or driving on some boards for very low cars.
For comparison, the Atlas lift I had at the shop would not go under my 135i. Very close, but needed to jack the car up first. I'm so glad it fits under the MaxJax arms without an issue.
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I made it to the drag strip the other day and want to share the results! I am now one of four manual N54-powered vehicles in the 10s... in the world!
2560 DA
Log: https://datazap.me/u/suspenceful/1090-1369-mph?log=0&data=1-4Adjustments I made to the car:
- Replaced my blown stock shocks with Competition Engineering drag shocks for a 60s-70s Ford
- Fresh NGK 97506 spark plugs gapped to 0.022"
- Implemented 2-step/antilag (didn't hold RPM consistently)
- Installed a clutch slipping device (didn't work properly)
- Removed back seats and interior trunk panels (~50-100lbs)
Dragy results from the same pass:
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Turn it up!
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Turn it up!
She's got another 2-3psi in her
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The picture 2nd from bottom looks like its from Forza or some video game. I dig it LOL
Saturation, clarity, vibrance:
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Cool to see how accurate Dragy is.
I had always questioned the accuracy of it, but the dragy app compared to the time slip really proves how accurate it is.
Impressive stuff for sure!
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