Jake's Epic BMW 135i Build Thread! (5+ Years of Ownership)
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I finally strapped my 135i onto the dyno this weekend and am thrilled with the results. I can't find a higher published power output from a Precision 6266 on an N54! Now I need to put my Draggy to use so I can see how fast it really is...
I did a handful of pulls at various power levels and attached the logs below. This should give everyone a good idea of what a properly set-up 6266 can do from low boost to high boost on an N54.
All pulls done in 4th gear (manual transmission). DynoJet with STD correction.
- 749whp, 643wtq @ 29psi - https://datazap.me/u/suspenceful/dyno-749whp
- 708whp, 609wtq @ 26psi - https://datazap.me/u/suspenceful/dyno-708whp
- 658whp, 554wtq @ 21psi - https://datazap.me/u/suspenceful/dyno-658whp
- 552whp, 495wtq @ 16psi - https://datazap.me/u/suspenceful/dyno-552whp
- 453whp, 422wtq @ 11psi - https://datazap.me/u/suspenceful/dyno-452whp
Watch the video above for speedo & exhaust angles... plus lots of awesome turbo noises. I also explain a lot of stuff as I'm dynoing the car.
Let me know what you think!
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hot damn
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NO WAY!
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Thanks guys! I'm very happy/impressed with the car.
Power numbers are pretty tasty.
Whats the plan for putting the power to the pavement now?
I have some 275 Federal 595RSRR to try on my current wheels. The MPSS I have currently are actually really good at holding the power for a street tire.
I'll be getting a set of 17" wheels to put an Mickey Thompson ET Street tire on.
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Nice job! Plans for an LSD anytime?
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Nice job! Plans for an LSD anytime?
I just ordered some cheap 17" wheels and a pair of Mickey Thompson ET Street R tires on eBay to take full advantage of their 20% sitewide sale today.
LSD is next

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The Mickey T's should help a bit I would hope.

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Had a bit of an issue with the cheap eBay wheels, so @Tkuhn sold me a pair of rear Style 68 wheels from an E46. My girlfriend wouldn't let me steal some from her car. They're one of the only available wheels that have a high enough offset with some decent width. I'd still like a 9.5" wheel instead of these 8.5", but they'll work. The MT radials are on and it's a very tight fit.
Any opinions on color? I am going to clean them up and spraybomb them tonight. Silver, gray, black or red?
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RIP halfshafts
I like sleepers so I vote to match the front.
I already picked up a spare set to keep on hand, lol.
I vote gray.
are those Eileen’s wheels? Lol
I asked. She said no. Lol...
I just updated original post with more info on where I got them.
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needs more tire lettering.
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Stincil your social media handles on the sidewalls
Fixed
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