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BMW 3-Series (E90 E92) Forum
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RB Turbo's N55 Turbo Upgrade, rounding the bases
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08-08-2013, 07:39 AM | #45 | |
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N54= Forged Crank and Rods, High Quality Cast Pistons. |
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08-08-2013, 01:43 PM | #47 | |
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http://www.e90post.com/forums/showth...d+rods&page=11 I forgot about the crankshaft.
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2011 E90 / Premium Package / Stage 2 PPK / Performance Suspension
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08-08-2013, 02:58 PM | #48 | |
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Rob - can't wait to see who will take on the roll of early adopter and push their N55 toward its limits. |
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08-08-2013, 03:16 PM | #49 |
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Drives: '11 E92 M-Sport
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You would think the aftermarket would be all over the N55 like a wet blanket... at least fabricators...
The N55 is now available in EVERY SINGLE MODEL in the bmw lineup. I'm sure the production numbers even just in the last 2 years dwarf the total N54 cars on the road. BMW isn't stupid... they will make the engine assembly (block/head/intake and exhaust manifolds) fit in the same space because it costs less that way. Airboxes and intercooler pipes will be different, but someone who comes out with a slightly modular turbo kit for the N55 *should* sell way more of them than N54 kits if the tuning side pans out. |
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08-08-2013, 05:51 PM | #50 |
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Ordered all off the shelf AN hardware, hoses, and heat shield sleeving today for the oil and coolant lines (the custom pieces are complete)...
Next up is making a custom actuator mount, custom T3 Twin Scroll flange, and custom V-band collectors. |
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08-08-2013, 05:54 PM | #51 |
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08-08-2013, 10:40 PM | #52 | |
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Last edited by Jon@NL; 10-22-2013 at 11:32 AM.. |
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08-08-2013, 10:42 PM | #53 | |
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08-09-2013, 08:10 AM | #54 | |
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Rob |
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08-09-2013, 11:55 AM | #55 | |
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08-09-2013, 03:58 PM | #56 | |
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08-10-2013, 07:00 AM | #58 |
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08-10-2013, 11:54 AM | #60 | |
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Thanks, Rob |
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08-10-2013, 01:12 PM | #61 |
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Just arrived is some Off the Shelf AN hardware bits (and heat wraps). Next up is getting the piping so we can get the modular collectors machined.
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08-10-2013, 01:36 PM | #62 |
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Anyone thinking about this, don't forget to budget $2000 for a proper LSD. No way in hell I would drive one of these cars tuned up to 500+ bhp without one. The pricing of a bit over $5000 seems reasonable to me. I think I paid more than that for the hardware to convert my biturbo S4 to full stage 3 over a decade ago. I think a good estimation of costs are as follows:
Turbo kit: $5500 FMIC: $1000 Software: $1000 LSD: $2000 So you will be somewhere around $10,000 in hardware. Installation cost will vary with your location and you ability to diy or not. If you're paying someone else to turn wrenches, you will be well into $12,000 to be on the road. Not to rain on any parades but I think many members here need a little reality check in terms of real costs. You have to pay to play. One thing I am not clear on is if this kit is going to come with its own dedicated downpipe or not. Rob? |
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08-10-2013, 01:50 PM | #63 | |
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As for the LSD, cool mod, but totally not necessary. Recommended, sure. But with you on all other accounts. You do not get into this power territory with $2000, especially when the turbo itself is around $2500. Ultimately as with any modding of a car there are other mods to get, if you do not have them already. So yes anyone with a completely stock car who thinks they are going to jump in and get this kind of power for cheap are sorely mistaken. As for the downpipe. It is still up in the air. Likely will have to make a new one if an adapter of sorts can not be made. Will know more as we move along (and get an N55 downpipe in hand, so if you have one let me know as I am looking for one- OEM only please). Trying to do anything possible to reduce costs of the kit while upholding very high quality and fitment. Fitment is key to me, if the unit can not be installed nicely and in a reasonable timeframe then it is not a unit worth selling (big reason why we didn't move forward with Stage 3s on the N54, fitment is garbage). Thanks, Rob |
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08-10-2013, 04:18 PM | #64 |
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I don't have a spare stock downpipe. Mine is still on the car since I run only the OEM PPK and won't put up with any bullshit SES lights or cat readiness codes. No one has ever developed a true fix for N55 catless downpipes.
The downpipe solution will be interesting. In visualizing how the stock setup is arranged and how large I think your new turbo is, I can't see that working. EDIT: just went back and looked at your pic on page 1. It is damn close in size. |
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08-10-2013, 07:19 PM | #65 | |
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Rob |
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