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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Bad ass N52 300HP



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      08-27-2012, 10:36 PM   #1
QUiKSR20
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Bad ass N52 300HP

I hope this is not a re-post but a pretty badass N52 I saw on the 1 Series forum
http://www.1addicts.com/forums/showthread.php?p=9529112



If re-post sorry guys!
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      08-27-2012, 11:29 PM   #2
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Quote:
Originally Posted by QUiKSR20
I hope this is not a re-post but a pretty badass N52 I saw on the 1 Series forum
http://www.1addicts.com/forums/showthread.php?p=9529112



If re-post sorry guys!
He's on babybmw more - i've spoken to him about his mods if you want more details? (he wasn't very talkative so i don't know LOTS lol)

Apparently it's more like 330-335hp, not 300
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      08-27-2012, 11:40 PM   #3
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Needs more turbo's!

I bet it sounds really good being NA! I'd like a sound clip.
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      08-27-2012, 11:57 PM   #4
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Quote:
Originally Posted by flinchy View Post
He's on babybmw more - i've spoken to him about his mods if you want more details? (he wasn't very talkative so i don't know LOTS lol)

Apparently it's more like 330-335hp, not 300
He mentions his mods in the ops linked thread.
  • E36 Individual throttle bodies
  • Race Headers
  • Lightened Flywheel
  • Motec ECU
  • Valvetronic Locked at full tilt
  • Cam

I don't know what half of those things do but I don't doubt that it is all very expensive. He re-wired the whole car.
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      08-28-2012, 12:13 AM   #5
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Quote:
Originally Posted by mapleridge View Post
He mentions his mods in the ops linked thread.
  • E36 Individual throttle bodies
  • Race Headers
  • Lightened Flywheel
  • Motec ECU
  • Valvetronic Locked at full tilt
  • Cam

I don't know what half of those things do but I don't doubt that it is all very expensive. He re-wired the whole car.
yeah, it's got a Motec M800 and one of the Motec PDM's for power distribution

the head is fully custom (revalved port matched etc.) - got an OEM one and modified it.

the ECU is th most expensive part of the whole thing, an M800 is a solid $4-5k plus install. not sure on the PDM price.

ITB's give greater airflow and throttle response as well as being LOUD
custom cam allows for more airflow too (intake and exhasut)

lightened flywheels can be purchased for $500 odd, i think with a clutch even though.
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      08-28-2012, 12:31 AM   #6
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Quote:
Originally Posted by flinchy View Post
yeah, it's got a Motec M800 and one of the Motec PDM's for power distribution

the head is fully custom (revalved port matched etc.) - got an OEM one and modified it.

the ECU is th most expensive part of the whole thing, an M800 is a solid $4-5k plus install. not sure on the PDM price.

ITB's give greater airflow and throttle response as well as being LOUD
custom cam allows for more airflow too (intake and exhasut)

lightened flywheels can be purchased for $500 odd, i think with a clutch even though.
Looks badass, And if it sounds any much as nice as a built S54 at high rpm WOW... Just cool to see something diff with the N52
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      08-28-2012, 12:50 AM   #7
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Quote:
Originally Posted by QUiKSR20 View Post
Looks badass, And if it sounds any much as nice as a built S54 at high rpm WOW... Just cool to see something diff with the N52
ITB's, valving, exhaust, ECU, locked valvetronic. the stock internals are crazy light

i cbf asking him because he barely says anything, but there's no reason it couldn't rev to 8k or more like the E36/46 M3, considering it's teh intake from an E36 and make pretty stupid power.

you see skyrines and supras hitting 10K+ as long as they can breathe at it... i mean, it's a similar setup to honda engines that lets them rev way higher (the ITB's and bigger cams part)

if you dyno even a stock (proper tuned 265hp one at least) the power curve is well.. dead straight, all the way to redline just about, in my case.
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      08-28-2012, 09:39 AM   #8
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      08-28-2012, 11:55 AM   #9
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its about time some one finally did a full proper tune on N52
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      08-28-2012, 01:10 PM   #10
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While I agree this is pretty cool to see, the $15k price tag just isn't feasible financially. The only way I could see it working out was if you yourself owned a machine shop and had proper knowledge of how to build the car.
$5k for the ECU
$3k for the PDM
$1k for the e36 throttle body
$1k for the custom intake manifold
$1k minimum for the custom race headers
$1k for the lightened flywheel
$500 for misc motor parts
$2.5k+ for custom cams

Not even mentioning the amount of work on the suspension, wheels, tires, and race interior. I'd rather buy another car for racing...Ex:e36 m3, coilovers, wheels, tires and a small amount of motor work <$15k and IMO a better car.
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      08-28-2012, 01:16 PM   #11
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I also just noticed the dry sump oil system he is running. That isnt cheap...
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      08-28-2012, 01:18 PM   #12
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Cool as hell.
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      08-28-2012, 01:48 PM   #13
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If you guys are serious about building an NA engine for our cars, I'd suggest contacting RMP Motors. They have quite a bit of knowledge for our engines and I believe they have cams already in their car as well. I know they were interested in possibly doing a build on a street engine.
Contact them and let us know what they say:
http://www.rmpmotors.com/
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      08-28-2012, 01:55 PM   #14
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racing is expensive.

and real racing parts even more so. Doing this on your street driven BMW makes zero sense, but it's normal stuff on real race cars.


but it's definitely bad ass
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      08-28-2012, 05:34 PM   #15
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i could probably make the intake setup myself but getting the ITBs to work properly is another story, the tuning is always the hardest part
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      08-28-2012, 08:32 PM   #16
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Cams would be nice, They are usually a great bang for the buck NA mod.
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      08-28-2012, 10:14 PM   #17
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Quote:
Originally Posted by Johnny D
While I agree this is pretty cool to see, the $15k price tag just isn't feasible financially. The only way I could see it working out was if you yourself owned a machine shop and had proper knowledge of how to build the car.
$5k for the ECU
$3k for the PDM
$1k for the e36 throttle body
$1k for the custom intake manifold
$1k minimum for the custom race headers
$1k for the lightened flywheel
$500 for misc motor parts
$2.5k+ for custom cams

Not even mentioning the amount of work on the suspension, wheels, tires, and race interior. I'd rather buy another car for racing...Ex:e36 m3, coilovers, wheels, tires and a small amount of motor work &lt;$15k and IMO a better car.
Wouldn't be 2.5k for cams - just have to get a set if OEM ones, draw it up in a CAD type software (free if you know how or have friends lol) and set the cnc machine to go

Intake and itb's are the same thing, it's the full manufold off an E36 m3, matched up to the n52
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      08-28-2012, 10:32 PM   #18
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Quote:
Originally Posted by flinchy View Post
Wouldn't be 2.5k for cams - just have to get a set if OEM ones, draw it up in a CAD type software (free if you know how or have friends lol) and set the cnc machine to go

Intake and itb's are the same thing, it's the full manufold off an E36 m3, matched up to the n52
Please note the first thing I said about owning a machine shop...Also, AutoCAD isnt that simple.

Ok, $1k for new camshafts. Figure $500 worth of machining. Save $1k, still way above $15k.

Intake and itb's arent the same thing. Take another look at the picture. There is a custom manifold between the ITB and the head. Again, say your friend can mock up something....so $500 instead of $1k and you better hope you get it right the first time. Still above $15k.
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      08-28-2012, 11:04 PM   #19
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Quote:
Originally Posted by Johnny D View Post
Please note the first thing I said about owning a machine shop...Also, AutoCAD isnt that simple.

Ok, $1k for new camshafts. Figure $500 worth of machining. Save $1k, still way above $15k.

Intake and itb's arent the same thing. Take another look at the picture. There is a custom manifold between the ITB and the head. Again, say your friend can mock up something....so $500 instead of $1k and you better hope you get it right the first time. Still above $15k.
except the E36M3 came with ITB's.. the whole intake and throttle body assembly was taken directly off one from the information he provided

$1.5k for camshafts still seems high, why so expensive? autocad from my experience (same with solidedge) really isn't that bad. it's mostly in how long it will take to design, the material is cheap, the machine time you'd only really need an hour or so for

again it's all assuming you know HOW to do this, and i'd hope you would with such a massive project lol

though either way, yes, not cheap, unless you really want to do a proper race series, way WAY cheaper to buy and install an N54.
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      08-29-2012, 01:29 PM   #20
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sh!t, a custom cam for my pushrod LT1 camaro was $395. DOHC custom BMW's willl for sure be 1,000 +

the car is awesome. but with the 335 and all its guts and glory with just a tune is hard to beat for the $$$.

but like mentioned already, this is prolly a racecar, in racing a "budget" is some distant, far off term no one has ever heard of.
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      08-29-2012, 03:34 PM   #21
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i wonder how simple it would be and what kind of gains you would get with just to the ITB swap? they wouldnt be that hard to do
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      08-29-2012, 03:40 PM   #22
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You would then need to lock open the valvetronic like this dude did and have some way to tune out the normal valvetronic and use the physical new
ITBs. I think youd still require the whole ecu swap and everything.





Quote:
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i wonder how simple it would be and what kind of gains you would get with just to the ITB swap? they wouldnt be that hard to do
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