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Old 04-04-2012, 05:06 AM   #1
Breticus
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Question Swap or Turbo?

I have a 95 318ti. I'm trying to decide what I'm going to do about more power. Should I M3 swap it? or build the M42 and turbo it? If I M3 swap I really want to find an S50, but it seems there are hardly any around. I could probably settle for an S52 and I could probably build it to be just like an S50. Let me know what you think and please give me suggestions or tips. Any help in general would be appreciated. Thank you.
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Old 04-04-2012, 06:11 AM   #2
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price wise a m3 swap is cheaper but i like to be different so i got a build motor turbo lol but its not cheap at all so cheap and reliable then go with the m3 swap, many people have done it before
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Old 04-05-2012, 09:39 PM   #3
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I definitely want to do the engine swap. Only problem now is trying to find one. I would prefer the 3.2 liter s50, but just the 3,0 s50 would do and if it comes down to it I'll just get the s52 haha.
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Old 04-05-2012, 10:31 PM   #4
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definitely go for the swap
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Old 04-06-2012, 01:25 AM   #5
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I was going to suggest the 3.0, M52, I think. Two hundred twenty horses, cheaper and less trouble than an M engine.
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Old 04-06-2012, 02:05 PM   #6
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I'll look into my options. I'd just really like to have an almost 300hp n/a engine. Do the M engines have problems?
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Old 04-06-2012, 02:32 PM   #7
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M engines really don't have issues, they are just bored out M50's and M52's with more aggressive cams. The only known issue is the oil pump nut coming lose when it is getting pushed hard. Before you drop the engine in, you can lock tite it, use safety wire, or tack weld. they are great engines if you keep up with the necessary maintenance
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Old 04-06-2012, 03:15 PM   #8
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I thought the S52 was the 3.2 and the s50 was the 3.0?

Why is it that you are searching for the s50 specifically?
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Old 04-06-2012, 03:55 PM   #9
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European S50 was a 3.2L that makes ~320hp, the S50B32. The US got the S50B30 with 240hp. The euro engines are $$$$$.

OP, you should do both. Just make sure to swap and then turbo.
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Old 04-06-2012, 04:58 PM   #10
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Hahaha. So any help on where I could find an S50?
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Old 04-06-2012, 05:13 PM   #11
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Easiest is to find a M3 wrecked and buy the whole car, then sell off the remainder when your done.

That way you get all the harness, EWS, Seats, maybe wheels...

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Old 04-06-2012, 05:22 PM   #12
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Newbie here..but im just curious as to how much and M engine swap would cost to go for the turbo. Is there an cost effective alternative to turbo a Ti engine as is without completely getting rid of it?
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Old 04-06-2012, 06:49 PM   #13
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Quote:
Originally Posted by B-moreBimmer318ti View Post
Newbie here..but im just curious as to how much and M engine swap would cost to go for the turbo. Is there an cost effective alternative to turbo a Ti engine as is without completely getting rid of it?
the only way to really effectively boost the power of the stock M42/44 without a turbo is a DASC which is gonna run you a pretty penny, or you could get a metric mechanics engine and really bankrupt yourself, best bet is to go for an engine swap
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Old 04-10-2012, 05:13 AM   #14
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Have you considered an M52 and turbo?
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Old 04-10-2012, 06:36 AM   #15
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Well, I have, but I'm looking to get the best N/A possible.
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