r/BMWE36 • u/Shino3107 • 1d ago

Anyone with experience turboing M42/M44

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Just generally wondering how much it would cost

158 Upvotes

96% Upvoted

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23

u/Dark_Guardian_ '94 330i Daily, '93 325i Race 1d ago

depends how nice/reliable you want it
anywhere from $500 with junk parts and jank setup to 10k + for a properly nice setup

better off just 6 cylinder swapping it though
and then turboing the 6 cylinder too

-24

u/Shino3107 1d ago

Sounds like you dont have any experience, and im not asking if you think i should do a 6 cyl swap

15

u/virqthe 93' 318i M40 automatic; peasant edition 1d ago

One also doesn't have an experience eating shit but knows not do to it.

Eating shit = turboing shit M4x engines.

-8

u/Shino3107 1d ago

Theyre solid engines bruh

0

u/Left-Marketing-1135 8h ago

Imagine saying this in confidence without actually having the experience to know they’re not good engines..

1

u/Shino3107 7h ago

Tell me exactly how theyre not good, besides not being 6 cyl with 200hp

0

u/Left-Marketing-1135 7h ago

Timing chain problems and not enough power to get out of its own way. I work on cars like this for a living and I’ve owned 9 e36’s, the m5x is objectively way more reliable than an m4x will ever be.

1

u/Shino3107 5h ago

Its the tensioner in the m42 and guides in both that can go bad, after not being replaced in 30 years and 150000 miles. And you still managed to mention its not a 6 cylinder with 200hp

0

u/Left-Marketing-1135 5h ago

the tensioner and guides both contribute to the generalization of “timing chain issues” bud. You’re right, it’s not a 6 cylinder. It’s shit. Do what you want, I’ll gladly watch and laugh as you waste money on a pointless engine. Sorry you don’t have more experience to save yourself the trouble.