turbo sizes?

heel2toe · 08-08-2009, 06:50 PM

I was wondering if the 135i has two of the same sized turbos or a small and a large one. The 335 (with the same engine) apparently has 1 large and 1 small turbo to help with lag.

thanks

jkp1187 · 08-08-2009, 07:20 PM

The N54 has two turbos of the same size - that's in the 135i, 335i, and 535i.

The 335d/X5 X-drive 35d engine (don't know the code offhand.) has a small and bigger turbo.

kc_skyrider · 08-09-2009, 10:58 AM

This is standard. Parallel turbos won out over sequential twin turbo setups due to an ease of tuning and reliability in gas engines. I know the same holds true for skylines,300zx, and I'm pretty sure even supras. Isn't it great how if you put two turbos on a car the name becomes legendary? oh and a quick FYI if you look at the exhaust and it appears to have two individual manifolds, one for each turbo, you can pretty much bet they're the same size. If it has one and the turbos are in line... then your looking at a sequential set up.

Lester · 08-09-2009, 12:24 PM

Twin turbos, each handles 3 cylinders. When they come off warranty - look forward to some big bills to get new ones.

heel2toe · 08-09-2009, 11:47 PM

yeah thats what i thought. my friend came back from test driving a 335 xi coupe, and said that he thought there was a small and large turbo.... guess he was wrong. i mean kid drive an evo VIII wtf does he kno anyways.

08-08-2009, 06:50 PM	#1
heel2toe New Member 3 Rep 25 Posts Drives: nothin fun yet Join Date: Jul 2009 Location: Medfield, MA iTrader: (0)	turbo sizes? I was wondering if the 135i has two of the same sized turbos or a small and a large one. The 335 (with the same engine) apparently has 1 large and 1 small turbo to help with lag. thanks
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08-08-2009, 07:20 PM	#2
jkp1187 Unindicted co-conspirator 66 Rep 1,734 Posts Drives: to work, mostly. Join Date: Oct 2008 Location: Pittsburgh, Pennsylvania / Detroit, Michigan iTrader: (0)	The N54 has two turbos of the same size - that's in the 135i, 335i, and 535i. The 335d/X5 X-drive 35d engine (don't know the code offhand.) has a small and bigger turbo.
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08-09-2009, 10:58 AM	#3
kc_skyrider Second Lieutenant 13 Rep 231 Posts Drives: 2009 135i M-Sport Join Date: Jun 2009 Location: Kindsbach, Germany iTrader: (1)	This is standard. Parallel turbos won out over sequential twin turbo setups due to an ease of tuning and reliability in gas engines. I know the same holds true for skylines,300zx, and I'm pretty sure even supras. Isn't it great how if you put two turbos on a car the name becomes legendary? oh and a quick FYI if you look at the exhaust and it appears to have two individual manifolds, one for each turbo, you can pretty much bet they're the same size. If it has one and the turbos are in line... then your looking at a sequential set up.
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08-09-2009, 12:24 PM	#4
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Twin turbos, each handles 3 cylinders. When they come off warranty - look forward to some big bills to get new ones. Attached Images
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08-09-2009, 11:47 PM	#5
heel2toe New Member 3 Rep 25 Posts Drives: nothin fun yet Join Date: Jul 2009 Location: Medfield, MA iTrader: (0)	yeah thats what i thought. my friend came back from test driving a 335 xi coupe, and said that he thought there was a small and large turbo.... guess he was wrong. i mean kid drive an evo VIII wtf does he kno anyways.
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