Best way to make 300hp out of a m52?

Tyman · 10-18-2012, 12:37 PM

I hoping in the near future to be making 300 hp out of my m52 and was wonder what the best ways or cheaper ways to get that kinda of hp, or if its easier and cheaper for me just to swap in a s52

Bullet Ride · 10-18-2012, 01:35 PM

There's a number of ways that you can achieve that number, but the way to go will depend on what it is you plan on doing with the 300hp. That being said, short of a cheap nitrous kit, any way you cut it it will cost you thousands to make a reliable 300hp from an M52. An S52 (US) will still need some pretty serious mods to get 300hp as well.

Tyman · 10-18-2012, 01:40 PM

daily driver/weekend car mostly, and maybe go out to a couple of track days

GeMc · 10-18-2012, 01:42 PM

An (aftercooled) supercharger kit running 8psi will get you 300whp on a strong M52 motor. You can buy them used cheap out of the U.S. Nitrous is the cheapest way to get that power, just make sure you get it installed professionally with all the proper safety measures (tuning, plugs, variable controller, fuel etc).

**T.Dot_E30** · 10-18-2012, 01:46 PM

300rwhp ain't happening without forced induction, but you know that right?
Even getting close to that will take several thousands into an engine build.

Usually FI mods aren't known for reliability.

Tyman · 10-18-2012, 01:53 PM

no you can have an n/a motor with 300 hp, just didnt know what it would cost, and how much could i get a supercharger for?

GeMc · 10-18-2012, 02:10 PM

You think you can make 300whp without a power adder on an M52 2.8L motor? Um, sure. It'll cost you about $30,000 and last for a few hours running 110oct, stand alone, 12+:1 compression with ITBs and radical cams with VANOS delete. You'd essentially have to build your own Eurospec S50 motor out of a 328i. Like Trevor said, aint going to happen. You can get a used blower kit from a U.S. forum for probably $4g

Bullet Ride · 10-18-2012, 02:12 PM

Unless your car is in super clean condition you'd be better off to sell it and pick up a clean M3 than to spend the time and money to do an S52 swap.

Tyman · 10-18-2012, 02:37 PM

its in an e30 btw, i want to keep my car, so should i just get an s52 instead of a super charger bcuz ive seen s52's go for 2000-3000$

GeMc · 10-18-2012, 02:57 PM

Sure, but you'll pay half the price (of a used S/C) to get HALF the horsepower you're looking for. You're call really.

Bullet Ride · 10-18-2012, 03:05 PM

FWIW....

http://www.maxbimmer.com/forums/showthread.php?t=153849

Tyman · 10-18-2012, 03:17 PM

hmm i actually like the look of that but honestly how long do you think that turbo will last, im kinda new to cars but know used turbos arnt the best investment

GeMc · 10-18-2012, 03:44 PM

Sounds like a good deal. Even if the Turbo blows prematurely, you can easily get it rebuilt, or buy another one. At least you still have all the other accessories.

Bullet Ride · 10-18-2012, 04:25 PM

Quote:

Originally Posted by Tyman

hmm i actually like the look of that but honestly how long do you think that turbo will last, im kinda new to cars but know used turbos arnt the best investment

Based on the picture it doesn't look like the turbo has had much use. As long as there's no shaft play, chances are it's in good shape and will last quite some time if you treat it well.

SamE30e · 10-18-2012, 04:44 PM

It's an ebay turbo kit. It's cheaper then that new..

You could get close 300hp out of an M52. You'd have to build the engine pretty serious, but not as extensive as the previous guy said. It wouldn't be basic bolts on's though.

But why? Just buy a M52, buy a used supercharger kit and be done with it. It's the cheaper route.

Or just get a Euro S50, cheaper then a S54 and a easy swap.