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M88rt j

N54 twin turbo conversion project

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Following on from my reply in the what did you do to your e61 thread I thought I'd start a new topic with my new project. Plan is to convert an e61 to n54 twin turbo power plant.  As this isn't a car they was available to the UK market in e60/61 format thought it would be a good project to build it myself. I don't know of any in the UK but correct me 8f I'm wrong. It's all starting with the donor car, a e92 335i msport with a manual box. Picked it up for 3.5k which is a steal for one if these with the spec it had, plan is to sell everything I don't need which hopefully will leave me in profit and with a free engine and box 

 

The donor  

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Wonderful project! I don't think I've heard of any others being done in the UK previously either. Are you upgrading anything whilst you're in there or literally just putting the standard engine in?

Edited by Mashed Potatoes

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On 7/16/2018 at 4:23 PM, Mashed Potatoes said:

Wonderful project! I don't think I've heard of any others being done in the UK previously either. Are you upgrading anything whilst you're in there or literally just putting the standard engine in?

 

Won't be upgrading much untill it's in and running. Hopefully get the turbos rebuilt and replace the common gaskets that fail on these like the sump gasket rocker gasket and oil housing gaskets whilst the engines out . I want to change the air filter position to the cold side of the bay too

 

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Yes it was, it wasn't available in the UK. They did have it in the US and Europe, and with an X drive option I believe.

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14 hours ago, Qasimahmed said:

Yes it was, it wasn't available in the UK. They did have it in the US and Europe, and with an X drive option I believe.

 

Oh OK thanks, good knowledge 

Edited by Piper

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Bout time I reprised this post, the black 335i I purchased to do the conversion was totally stripped and I ended up selling the running gear as 335i parts seem quite sort after so I ended up buying 3 more over the last 12 months to break in my spare time and finally got a excellent one for my conversion, turbo back akraprovic exhaust, forge intercooler ,hard pipe and Bov, freshly refurbished hybrid turbos,  updated air filters, remapped circa 400bhp , cars had a small fortune spent onit but unfortunately is suffering from oil filter housing gasket leak which gives the symptoms of a head gasket failure with a mayo effect on the oil cap, car runs a dream tho,  the exhaust on this crackles and pops like my m5 

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car will be broken down and then the hunt for a car to put the engine in, still swaying toward a e61 

 

 

 

 

 

 

 

 

 

Edited by M88rt j

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Should be nippy , had a 2008 335i 6mt recently up to about 400bhp

 

Masses of mid range pull!

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Donor stripped and engine on stands ready for a light strip down , engine mounts arrivd from the states as well as a 530i auto gearbox mount , plan is to strip inlet and ancillaries for a clean and gasket replacement, oil filter housing, sump, rocket gasket new vac lines etc the it's ready to be dropped into a car

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This has been a rather overdue update on the car, pretty much finished now bar a bit of snagging and coding,  

In no particular order

 

Old 535d engine out

7b7zBpP.jpg

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N54 lump going in 

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Uprated oil cooler and transmission cooler

 

M5 diff , prop and shafts 

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WB8dRZO.jpg

 

Rear spring conversion and AP Coil overs

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Little bit of wiring to sort 

b5W0fAZ.jpg

 

High pressure fuel pump and index 12 injectors

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New exhaust from down pipes back to quad tips with sports resonators

iCtAmgs.jpg

 

Pair of recaro seats from a vxr also fitted 

lHarbeF.jpg

 

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Got some oem m5 alloys to fit to replace the spiders 

 

Engine has full bolt on spec as follows 

 

Hybrid turbos

Dual air filters 

Silicone inlets

Stage 2 low pressure fuel pump 

1 step cooler spark plugs

Forge intercooler 

Forge charge pipe 

Forge BOV

Catless down pipes

Modified LHD alloy outlet pipe 

 

M5 rear diff

M5 drive shafts

Modified m5 propshaft

 

Aiming for circa 500bhp once finished and tuned

 

 

Edited by M88rt j

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5 hours ago, M88rt j said:

hCuK0FC.jpg

 

Looks so much nicer on m5 wheels now

 

Looks superb

 

Not a fan of the M5 front wings personally; but overall a great looking car

 

Is it all up & running now?

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