2013 128i SULEV Engine?

jclaib7 · 07-21-2013, 07:15 PM

My car in production is the SULEV version according the BMWUSA.com. Does this mean that I have the N51 engine and not the N52? What is the difference?

Does this matter if I was to add a tune at some point?

JC

Greenkirby21 · 07-21-2013, 07:18 PM

If you do get the N51, then it will have the 3-stage manifold so when you get a tune you will be able to extract more power.

If you go to the N52 engine forums, you will find a lot of threads discussing this

m_thompson · 07-25-2013, 12:55 PM

Quote:

Originally Posted by Greenkirby21

If you do get the N51, then it will have the 3-stage manifold so when you get a tune you will be able to extract more power.

The N51 SULEV engine has lower compression than the N52 engine so the 3-stage manifold is installed so that the stock N51 makes about the same power as the stock N52.

An N52 with a tune and a 3-stage manifold will make more power than a N51 with a tune.

07-21-2013, 07:15 PM	#1
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07-21-2013, 07:18 PM	#2
Greenkirby21 Vrooom :) 313 Rep 2,602 Posts Drives: C7 Stringray Join Date: Jun 2010 Location: Dream Land iTrader: (1)	If you do get the N51, then it will have the 3-stage manifold so when you get a tune you will be able to extract more power. If you go to the N52 engine forums, you will find a lot of threads discussing this __________________ 2014 C7 Corvette Stringray - Laguna Blue - NPP Exhaust - Competition Seats
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