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 Sr20det In To A E46 - engine conversion  

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nathan_nowlan
  • nathan_nowlan
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Post #1 post 24th September 2011 - 02:24 AM
hey people i have recently brought a e46 318i bmw im looking to change the engine to a s15 sr20det 5-6 speed does anyone have any idea how to do this or if anyone has done it i know it can be done in a e30/e36 but im not to sure about e46 so any info on this will be helping me out 100% THANKS Nathan
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jo88
Post #2

google my friend has found u the answer!

KammdUP
Post #3

Why an sr, all that effort could be put into a much better engine combo, s50 with a turbo on the side would dust nearly every sr you could find

Helsinki145
Post #4

Just put a different BMW engine in it, it will dominate all s50!

clutch-monkey
Post #5

QUOTE (KammdUP @ Sep 25 2011, 12:41 PM) *
Why an sr, all that effort could be put into a much better engine combo, s50 with a turbo on the side would dust nearly every sr you could find

and won't sound like a tractor either
B Unit
Post #6

Another vote here for not jumping on the SR20 bandwagon. Yes they are an ok engine, but there are so many other engines available reasonably cheap that will out perform, and as clutch monkey said, not sound like a tractor.

mr031
Post #7

There is a shop in coopers-plains off beatty rd that does them, Extreme Performance or something like that.

I got the fun job of wiring it up! Motor looked great in the engine bay.

GT3584R
Post #8

^ Extreme Custom Engineering ????

nathan_nowlan
Post #9

ok what is a s50 and what engine would be good in it i was looking at a 2j but mate said sr dunno any other in site from all

clutch-monkey
Post #10

QUOTE (nathan_nowlan @ Sep 25 2011, 07:49 PM) *
ok what is a s50 and what engine would be good in it i was looking at a 2j but mate said sr dunno any other in site from all

unsure.gif
talk to dryden motorsports - they do RB's into E36's and stuff and should be able to give you some pointers

mitch-10-02
Post #11

hit up Dryden Motorsport

and let them convince you that an rb25/6 is a much better option haha

nathan_nowlan
Post #12

QUOTE (mitch-10-02 @ Sep 25 2011, 08:37 PM) *
hit up Dryden Motorsport

and let them convince you that an rb25/6 is a much better option haha

lol thanks but i already have a rb i rather do a jz or a sr

180sxy
Post #13

Jap engines in euros are all the rage these days, less cop bait i guess.

KammdUP
Post #14

S50b32+T > all.
Op it's an m3 motor, what should be there. Not sure why youd want to convert to an sr unless your severly damaged in the ears and have no want to go very fast at all, when it comes down to it, it's a rather shit motor. If you must convert to jap then go a 1.5jz or 2jz with r154 box
Inb4sr20fanboirage

stockmy00
Post #15

Why not an ls1? tongue.gif

Seriously though the s50 sounds more logical. Will mean alot less custom work to bolt the sr and box in.

SILGEM
Post #16

why are you looking at sr OR 2j??
IMO they should not go in the same sentence... You are comparing two different ends of the scale here.

so here is the answer.
You want a very mildly powerful cruiser go SR
You want something that will be a quick street car with the potential to run 11's then go 2J

clutch-monkey
Post #17

QUOTE (SILGEM @ Sep 26 2011, 06:42 AM) *
why are you looking at sr OR 2j??
IMO they should not go in the same sentence... You are comparing two different ends of the scale here.

so here is the answer.
You want a very mildly powerful cruiser that sounds like a 318 diesel go SR
You want something that will be a quick street car with the potential to run 11's then go 2J

fixed
if performance isn't just the sole aim, it's important, just sayin'

benfalvey
Post #18

This is a joke. Why destroy a good bmw? Turbo your m44 and get a low compression head over the jap crap. Boosters need to see that just cause you get bmw and want it fast, that a cheap upgrade to jap is outrageous. An s50b32 euro spec would be awesome, you want the euro spec as they have more power stock than aus or usdm spec motors.
Not just that but the e46 m3 came with that motor. Therefore it is a way more simple conversion, yiu keep your bmw with some sense of class, and with a turbo, it will not only sound like a supercar, but chop everything you put it up against.

Im saving for a s54 atm for my e36. Went through the ls1, rb25 all that, and quite frankly.cant stomachs the thought of putting one.in my car. For a cheaper option they are great, and thats about it.

Join some bmw forums and talk to people there, performance upgrades to an s50, especially a turbo, will see a stupid ly bigger and better return not just in kw, but get some craZy torque.

Bmw over Nissan anyday of the week imo.

stockmy00
Post #19

QUOTE (benfalvey @ Sep 26 2011, 09:17 AM) *
This is a joke. Why destroy a good bmw? Turbo your m44 and get a low compression head over the jap crap. Boosters need to see that just cause you get bmw and want it fast, that a cheap upgrade to jap is outrageous. An s50b32 euro spec would be awesome, you want the euro spec as they have more power stock than aus or usdm spec motors.
Not just that but the e46 m3 came with that motor. Therefore it is a way more simple conversion, yiu keep your bmw with some sense of class, and with a turbo, it will not only sound like a supercar, but chop everything you put it up against.

Im saving for a s54 atm for my e36. Went through the ls1, rb25 all that, and quite frankly.cant stomachs the thought of putting one.in my car. For a cheaper option they are great, and thats about it.

Join some bmw forums and talk to people there, performance upgrades to an s50, especially a turbo, will see a stupid ly bigger and better return not just in kw, but get some craZy torque.

Bmw over Nissan anyday of the week imo.


Ugh euro Smug.
clutch-monkey
Post #20

QUOTE (nathan_nowlan @ Sep 24 2011, 08:24 PM) *
hey people i have recently brought a e46 318i bmw

QUOTE (benfalvey @ Sep 26 2011, 09:17 AM) *
This is a joke. Why destroy a good bmw?

wut

DAL32
Post #21

Here's a good conversion. Sell the 318i, buy a 330i. You don't even have to pay some chump to swap the motors out.

And just because the BMW comes with a 4cyl engine doesn't make the SR20 a good idea. They only do well because the cars they powered aren't overweight like BMWs. And if you did do this you'd lose all your creature comforts that make a BMW a BMW. Did I say creature comforts? I meant basics, like aircon.

EET_88
Post #22

sr will fit nicely ull need a rear sump made up and custom mounts all the stock fuel system is good enough to make decent power i did it few years ago and wasnt that hard .. if u go any

EET_88
Post #23

sr will fit nicely ull need a rear sump made up and custom mounts all the stock fuel system is good enough to make decent power i did it few years ago and wasnt that hard .. if u go any

mark1414
Post #24

An sr would still make decent power. Its all well and good to say put a 2jz or rb25 in it but when putting a straight 6 in a car that came out with a 4cyl it really take a huge amount of effort to make it handle the way it should again.

janth6
Post #25

QUOTE (KammdUP @ Sep 25 2011, 12:41 PM) *
Why an sr, all that effort could be put into a much better engine combo, s50 with a turbo on the side would dust nearly every sr you could find

^^^ yes!! i don't know why everyone wants to drop an sr in just about everything, bmw make great engines why the hell would u look at something else

DAL32
Post #26

QUOTE (mark1414 @ Sep 26 2011, 03:25 PM) *
An sr would still make decent power. Its all well and good to say put a 2jz or rb25 in it but when putting a straight 6 in a car that came out with a 4cyl it really take a huge amount of effort to make it handle the way it should again.

I hope you're trolling. Because the 3er is really designed for a straight 6.

mark1414
Post #27

QUOTE (DAL32 @ Sep 26 2011, 04:47 PM) *
I hope you're trolling. Because the 3er is really designed for a straight 6.


Nah I wasn't. I thought all the 3 series had 4cyl in them. Carry on.

Helsinki145
Post #28

QUOTE (mark1414 @ Sep 26 2011, 05:04 PM) *
Nah I wasn't. I thought all the 3 series had 4cyl in them. Carry on.




every 2 series has had inline 6's in them. but carry on.





and a s50 makes 236 kW/ 317 hp at 7400 rpm and 258 lb·ft 350 N·m from factory n/a so it can only got up from there with a turbo
benfalvey
Post #29

QUOTE (Helsinki145 @ Sep 26 2011, 05:17 PM) *
every 2 series has had inline 6's in them. but carry on.





and a s50 makes 236 kW/ 317 hp at 7400 rpm and 258 lb·ft 350 N·m from factory n/a so it can only got up from there with a turbo



not really sure what your talking about?

A. there is no such thing as a 2 series?
B. the 3 series bmw, from e36 upwards, were designed around a STRAIGHT 6 motor, these were in the 320, 323, 325, 328, 330, 335 etc. the only 3 series bmw to ever have 4cyl motors are the 318 variants.
C. but carry on

E30_luv
Post #30

S54 out of a E46 M3, 10:5:1 CR Pistons, Head studs, MLS Gasket, E85. Leave Everything else stock & pump 15.5Psi through it. Make a lazy 792rwhp......

http://youtu.be/JLCdis-EkTc
nathan_nowlan
Post #31

thanks everyone for your input the only reason i was saying sr is because of fuel consumption that's all i never thought about a s50 or what ever but thanks for everyone's insight

benfalvey
Post #32

QUOTE (nathan_nowlan @ Sep 26 2011, 06:57 PM) *
thanks everyone for your input the only reason i was saying sr is because of fuel consumption that's all i never thought about a s50 or what ever but thanks for everyone's insight



um LOL.
socal
Post #33

QUOTE (E30_luv @ Sep 26 2011, 06:08 PM) *
S54 out of a E46 M3, 10:5:1 CR Pistons, Head studs, MLS Gasket, E85. Leave Everything else stock & pump 15.5Psi through it. Make a lazy 792rwhp......


Leave everything else stock? Not much looks stock in that engine bay...

180sxy
Post #34

Well this thread went in a foreseen direction.

E30_luv
Post #35

QUOTE (socal @ Sep 26 2011, 10:04 PM) *
Leave everything else stock? Not much looks stock in that engine bay...


Internal wise I'm talking. The only other aftermarket things in the bay is basically all the braid, Short runner manifold & catch cans/ reservoirs out of ally & Injectors. Which TBH isn't all that expensive, you just have to accept the fact that you can't go and buy a bolt in catch can or reservoir off the shelf from japan. Most likely can buy a bolt in short runner manifold though. In my eyes thats pretty minimal mods for close to 800hp.

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