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Discussion Starter #1
Long time no post guys! Considering an Alpina b7 do these have the same engine and valve stem seal issues as the 750? Or was this motor more reliable?
 

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Discussion Starter #2
Jeez noone?
 

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Alpina uses a variant of the N63 engine that makes at least 25% more power than the base engine. Compared to the S63, Alpina's first and second variants makes lower horsepower but more torque.

For the 2013 model year, it received Valvetronic like all other N63 engines. Compared to BMW M's version of the 4.4L twin-turbo engine (such as found in the F10 BMW M5), Alpina's engine has 20 hp less but more maximum torque which is also available at a lower RPM.[7]

First generation[edit]
4.4 L V8 Bi-Turbo engine developing 507 PS (373 kW; 500 hp) and 700 N·m (516 lb·ft).

2010***8211;2011 Alpina B5 Bi-Turbo Sedan/Touring: based on the BMW F10/F11 5 Series
2009***8211;2012 Alpina B7 Bi-Turbo: based on the BMW F01 7 Series[8][9]
Second generation[edit]
4.4 L V8 Bi-Turbo engine developing 540 PS (397 kW; 533 hp) and 730 N·m (538 lb·ft).

2011***8211;2015 Alpina B6 Bi-Turbo Coupé/Cabrio: based on the BMW F12/F13 6 Series[10]
2012***8211;2014 Alpina B5 Bi-Turbo Sedan/Touring: based on the BMW F10/F11 5 Series[10]
2012***8211;2015 Alpina B7 Bi-Turbo: based on the BMW F01 7 Series[11][12]
2014***8211;2015 Alpina B6 Bi-Turbo Gran Coupé: based on the BMW F06 6 Series[12]
Third generation[edit]
4.4 L V8 Bi-Turbo engine developing 600 PS (441 kW; 592 hp) or 608 PS (447 kW; 600 hp) and 800 N·m (590 lb·ft).

2015 Alpina B5 Bi-Turbo Edition 50 Sedan/Touring: based on the BMW F10/F11 5 Series (600 PS)[13]
2015***8211;2016 Alpina B6 Bi-Turbo Edition 50 Coupé/Cabrio: based on the BMW F12/F13 6 Series (600 PS)[13]
2015***8211;present Alpina B6 Bi-Turbo: based on the BMW F06/F12/F13 6 Series (600 PS)[13]
2015***8211;present Alpina B5 Bi-Turbo: based on the BMW F10/F11 5 Series (600 PS)
2016***8211;present Alpina B7 Bi-Turbo: based on the BMW G12 7 Series (608 PS)

Source: Wikipedia
 

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Discussion Starter #5
not sure what help that list is, I appreciate it tho. Just wondering if its the same valve stem issued with the alpina?
 

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Same valves, same injectors, same tranny. If you look at realoem.com, you will notice that they all share the same part numbers. I would stay FAR away from pre-2013 B7s. I still love my 2009 F01 with 86K miles as i haven't a single issue after the CCP but am still looking to get out of it by the end of the year.
 

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Same valves, same injectors, same tranny. If you look at realoem.com, you will notice that they all share the same part numbers. I would stay FAR away from pre-2013 B7s. I still love my 2009 F01 with 86K miles as i haven't a single issue after the CCP but am still looking to get out of it by the end of the year.
so 2013 is no good ? or 13/14 is ok ? thx
 

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I always hoped the modification Alpina did to the N63 took care or the N63 issues but based on the posts here, maybe not.

I have a 2011 B7 with 50k miles on it and no problems yet. (Knock on wood)
 

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so 2013 is no good ? or 13/14 is ok ? thx
After the LCI in 2014, a few things were changed around with the engine. You should at least look at getting into an 8-speed (post 2011 MY, I think) from the old 6-speed that basically came from the E65/66.
 

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N63TU (450 bhp) differences compared to old N63 (407 bhp).

Quote:
Engine mechanical
***8226; New cylinder head due to use of the Turbo Valvetronic Direct Injection (TVDI) procedure
***8226; 3rd generation Valvetronic
***8226; New valvetrain with modified timing
***8226; Adoption of VANOS from the N55 engine
***8226; New cylinder head cover with adapted crankcase ventilation
***8226; Pistons with modified piston crown geometry
***8226; New connecting rod with even pitch and adaptation of the crankcase due to modified connecting rod shape
***8226; Adapted crankshaft
***8226; Chain drive with modified guide rails and an extruded chain with 142 elements.

Oil supply
***8226; Pendulum slide cell pump with small overall width
***8226; Eight individual oil spray nozzles for piston crown cooling.

Cooling
***8226; Integration of the two engine control units in the low-temperature circuit and cooling over the back panel with cooling pipe
***8226; Expansion tank under the left side wall with separate filling hopper.

Intake and exhaust emission systems
***8226; Adaptation of the manifold for the air intake duct due to new geometry of the cylinder head cover
***8226; Use of the hot film air mass meter 7
***8226; Adoption of the charge air temperature and intake-manifold pressure sensor from the N20 engine
***8226; Exhaust turbocharger with new compressor and modified wastegate valves
***8226; Discontinuation of the blow-off valves.

Vacuum system
***8226; Two-stage vacuum pump with new arrangement of the bolt connection
***8226; Vacuum reservoir for the wastegate valves in the V-area of the engine.

Fuel preparation
***8226; Use of the known high-pressure injection with injectors and high pressure pump HDP5
***8226; Discontinuation of fuel low-pressure sensor

Engine management system
***8226; New dual control unit concept with one control unit per bank
***8226; Oil level sensor with an additional temperature sensor in the main oil duct behind the starter motor.
 

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Jeez all this NO GOOD talk smh!!!

I've owned my 09 since 3200 miles and now just turned 40k
only issues was an alternator @ 36k, and injectors which was replaced under a recall @ just under 10k. Car runs great!
get a nicely maintained one and enjoy it ...
And did i mentioned i run E85 BLEND and 4-5 Psi over stock making 460whp/500wtq daily ...
 

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After the LCI in 2014, a few things were changed around with the engine. You should at least look at getting into an 8-speed (post 2011 MY, I think) from the old 6-speed that basically came from the E65/66.
so will a 2013 be as good as 2014? thx much? I am looking at a b7
 

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Discussion Starter #13
Same valves, same injectors, same tranny. If you look at realoem.com, you will notice that they all share the same part numbers. I would stay FAR away from pre-2013 B7s. I still love my 2009 F01 with 86K miles as i haven't a single issue after the CCP but am still looking to get out of it by the end of the year.
cool thanks.
 

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Discussion Starter #15
Early build N63T may require engine replacement for oil consumption, so you may want to look for a 2013 that was actually manufactured in 2013.
wow very interesting!:dunno: maybe Im not as bored with my s550 as I thought.
 
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