The B58 is a 3.0 liter single turbo straight 6 from bmw, Now this engine had a lot to live up to, The N54 which was BMW’s twin turbo straight 6 is a legend in the tuning world, but it still had its problems, the engine wasn’t the most reliable thing on the planet, then bmw made the N55, it was less tunable but the focussed more on reliability. Now the B58 is there newest Straight 6 and now they have no excuses they know how to build a reliable strong straight 6. So did they?

Well lets talk stock motor specs.
The B58 produces 330HP and 500nm of torque not bad in its stock form hay, how is the power made? Well this 3 liter has 1 twin scroll turbo. Which force feeds the engine with all the oxygen it needs. Now remember when I talked about the N54 and I said it was so loved in the tuning community? Well the reason people love the engine is because its crazy strong, with people making 800hp on a stock engine, and I think the record is over 1000hp on a stock internal motor. How? Well the N54 has a Forged Crank and rods, with really strong cast pistons. So here is the Good news the B58 is much of the same story, It also has a Forged crank and connecting rods. Now the N54 block is made out of iron which is really strong but heavy, So bmw made a compromise. The B58 has a weaker aluminium block in order to save weight, but they made it a close deck aluminium block in order to keep the block as strong as possible.


#B58 #340i #A90 #Supra

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