Heard acouple people talk about modding/tuning n52s to squeez 300hp

dasReaper · 10-07-2009, 12:19 PM

Is this true? I know Intake/Exhaust adds 5-10hp at best. I've also read about getting more HP out of the n52 with a tune, but haven't found anything concrete. If there is a tune to squeez some more HP out of the n52 does it decrease reliability much? I'm not looking for much more power out of my 128i. It's my daily driver, but I like to on occassion do some AutoX/Track outings. So I'd like to to get a little more power and perk up the powerband even more. Also get the performance suspension, but nothing extreme. Any info cause reading thru this forum seems to have alot of hearsay and inconclusive banter. Oh and please don't post "If you want more power go trade in your car for a 135i" typical response. I drove both the 135i and 128i before I made my purchase and honestly I liked the way the 128i handeld better and is a smoother daily driver.

dragon1761 · 10-07-2009, 12:25 PM

Quote:

Originally Posted by dasReaper

Is this true? I know Intake/Exhaust adds 5-10hp at best. I've also read about getting more HP out of the n52 with a tune, but haven't found anything concrete. If there is a tune to squeez some more HP out of the n52 does it decrease reliability much? I'm not looking for much more power out of my 128i. It's my daily driver, but I like to on occassion do some AutoX/Track outings. So I'd like to to get a little more power and perk up the powerband even more. Also get the performance suspension, but nothing extreme. Any info cause reading thru this forum seems to have alot of hearsay and inconclusive banter. Oh and please don't post "If you want more power go trade in your car for a 135i" typical response. I drove both the 135i and 128i before I made my purchase and honestly I liked the way the 128i handeld better and is a smoother daily driver.

it seems like all you want is NOS in your car.

dasReaper · 10-07-2009, 12:33 PM

lmao! hell no... 1) that shit is so unreliable even on built motors 2) It's my DD 3) I love my warranty/maintence agreement 4) just... no...

walkerkd · 10-07-2009, 02:37 PM

no need to validate your purchase i so sick of hearing that same responds as well.. yea there are some tunes out there but not alot. as the market is centered around the 135i right now. we just have to play the waiting game

Evice · 10-07-2009, 02:39 PM

I hate this waiting game.

walkerkd · 10-07-2009, 02:47 PM

yea thats the price way pay for not getting on the 135i band wagon! haa haa.. why did you guys wanna be different!

bigmicj · 10-07-2009, 03:54 PM

I just did my first autox in my 128 and here's what I have: BMW Performance intake & strut brace. The only thing I really needed on the track was Non Run Flats. New tires will be my next and probably final mod for autox. The 128 is a VERY capable track car and you don't have to worry about your fuel pump crappin' out... yeah I said it!

Wakka · 10-07-2009, 04:06 PM

I like NA BMW engines personally

wouldnt mind having the power of the 130i though.

SlicktopTTZ · 10-07-2009, 04:08 PM

Find someone to develop cams/valve springs, get head work/balancing to support m3 levels of rpm (8000 should be enough), shave your head to up compression (make sure to not go too much if you are gonna run 93 pump gas), find good headers/exhaust, get a light-weight dampened crank pully, carbon-fiber driveshaft, lightweight flywheel and of course a good intake and tune. You would probably make 300 to the wheels.

Wakka · 10-07-2009, 04:21 PM

that sounds rather expensive... id rather just a nice tune and maybe exhaust/intake.

Xin1120 · 10-07-2009, 04:30 PM

Quote:

Originally Posted by Wakka

that sounds rather expensive... id rather just a nice tune and maybe exhaust/intake.

+1

I think it honestly depends on how much money you want to put into it and how much hp you want to ultimately produce. If you put in enough to the point where its the same difference between the price of a 128 and 135, i would have gone with the 135 in the first place. Yes, i know you said not to say that but I'm just trying to justify your spending here.

But if its not too expensive and you're reason is to only increase handling...then thats a different story.

SlicktopTTZ · 10-07-2009, 04:37 PM

It would be expensive but it would be one hell of an NA engine, I love high-revving I6s, my buddy has the 4-cylinder m3 chassis (not sure what the code is, I'm new to BMWs) stripped out with I believe a 2004 m3 engine (the 3.0 liter one) and drivetrain with all the bolt-ons. The throttle response is ridiculous and it feels/sounds like a proper race car!

AlBel1214 · 10-07-2009, 04:42 PM

Quote:

Originally Posted by bigmicj

I just did my first autox in my 128 and here's what I have: BMW Performance intake & strut brace. The only thing I really needed on the track was Non Run Flats. New tires will be my next and probably final mod for autox. The 128 is a VERY capable track car and you don't have to worry about your fuel pump crappin' out... yeah I said it!

Wait what did you say about my fuel pump?? Oh wait I guess I can't here you b/c I am multiple car lengths in front of you and still pulling like a train

walkerkd · 10-07-2009, 06:36 PM

Quote:

Originally Posted by AlBel1214

Wait what did you say about my fuel pump?? Oh wait I guess I can't here you b/c I am multiple car lengths in front of you and still pulling like a train

well bring it to texas and i will race you!!! turbo car against turbo car if my 4cyl turbo car aint fast enough for you i will use my 10.5 turbo stang. lMK when your ready!

lets get back on track!

bigmicj · 10-07-2009, 06:47 PM

Quote:

Originally Posted by AlBel1214

Wait what did you say about my fuel pump?? Oh wait I guess I can't here you b/c I am multiple car lengths in front of you and still pulling like a train

Well... providing you get your car started in the first place

C'mon, I'm tired of the "turbo" heads thinking the 135 is the only 1 series worth racing. Truth is, the fastest cars on the course were all NA. They were older E30 & E36 M3's and 325is.

AlBel1214 · 10-07-2009, 08:18 PM

^^^ Totally agree.. I was just messing around! Ugh I hate the HPFP issues I envy the 128 for not having that problem

...The 128 is definitely an awesome as a built up track car so I can see why anyone would want to improve it a bit for those purposes...

I have never auto x... only drag strip but hopefully can do that one day soon...

Hey us 1'ers gotta stick together no matter what numbers come after the 1 right?!

AlBel1214 · 10-07-2009, 08:19 PM

ha.. sick!... what 4 banger is that??

Quote:

Originally Posted by walkerkd

well bring it to texas and i will race you!!! turbo car against turbo car if my 4cyl turbo car aint fast enough for you i will use my 10.5 turbo stang. lMK when your ready!

lets get back on track!

emm3tt · 10-08-2009, 12:32 AM

Quote:

Originally Posted by AlBel1214

ha.. sick!... what 4 banger is that??

Looks like a 240SX with an SR20DET.

walkerkd · 10-08-2009, 03:45 AM

Quote:

Originally Posted by AlBel1214

ha.. sick!... what 4 banger is that??

built sr20det

CP Forged Pistons
Eagle H-beam Rods
Apexi 1.5mm Headgasket
8.1:1 Compression Ratio
Stage2 Port & Polish Head
3-angle Valve Job
Apexi Drag Double Valve Springs & Retainers
Tomei 270/270 Duration 12.5mm Lift Cams
Trust RAS
ARP Main Studs
ARP Head Studs
ARP Rod Bolts
1000cc injectors

rcracer_tx · 10-08-2009, 02:57 PM

^ Nice to see a 240 with an sr20det that's not riced to hell. Clean car

Back on topic: I'm not trying to sound like a jackass, but it seems financially stupid to go FI on the 128i. you'll be throwing more weight in the front with a turbo setup, so it will handle like a 135i with more lag, no warranty, and more than likely more cost.

Evice · 10-08-2009, 04:11 PM

BACK TO THE TOPIC..

What the heck do we have to do in order to get a nice mod to get us upto ~270 HP?

SlicktopTTZ · 10-08-2009, 04:41 PM

Quote:

Originally Posted by walkerkd

built sr20det

CP Forged Pistons
Eagle H-beam Rods
Apexi 1.5mm Headgasket
8.1:1 Compression Ratio
Stage2 Port & Polish Head
3-angle Valve Job
Apexi Drag Double Valve Springs & Retainers
Tomei 270/270 Duration 12.5mm Lift Cams
Trust RAS
ARP Main Studs
ARP Head Studs
ARP Rod Bolts
1000cc injectors

What do you use for engine managment? I'm going to purchase the Full-Race twinscroll mani and GT3071r and I want to use a MAP setup but it seems nobody has info. I am currently using APEXI power FC, and APEXI discontinued the MAP version, I believe it was dJetro or something.

As far as the 128, I would start by doing headers/exhaust, lightweight dampened pully and tune. Then take weight off of drivetrain, wheels, driveshaft, flywheel. Not sure how good the intakes are. Do these mods and post a dyno to share with fellow 128'ers.

10-07-2009, 12:19 PM	#1
dasReaper Enthusiast 54 Rep 20 Posts Drives: '09 128i Black/Black Join Date: Dec 2008 Location: Ohio iTrader: (0)	Heard acouple people talk about modding/tuning n52s to squeez 300hp Is this true? I know Intake/Exhaust adds 5-10hp at best. I've also read about getting more HP out of the n52 with a tune, but haven't found anything concrete. If there is a tune to squeez some more HP out of the n52 does it decrease reliability much? I'm not looking for much more power out of my 128i. It's my daily driver, but I like to on occassion do some AutoX/Track outings. So I'd like to to get a little more power and perk up the powerband even more. Also get the performance suspension, but nothing extreme. Any info cause reading thru this forum seems to have alot of hearsay and inconclusive banter. Oh and please don't post "If you want more power go trade in your car for a 135i" typical response. I drove both the 135i and 128i before I made my purchase and honestly I liked the way the 128i handeld better and is a smoother daily driver. __________________ "Life is risky business" ~Schirmnov, Oleg
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10-07-2009, 12:33 PM	#3
dasReaper Enthusiast 54 Rep 20 Posts Drives: '09 128i Black/Black Join Date: Dec 2008 Location: Ohio iTrader: (0)	lmao! hell no... 1) that shit is so unreliable even on built motors 2) It's my DD 3) I love my warranty/maintence agreement 4) just... no... __________________ "Life is risky business" ~Schirmnov, Oleg
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10-07-2009, 02:37 PM	#4
walkerkd Enlisted Member 4 Rep 31 Posts Drives: 128i Join Date: Aug 2009 Location: DFW iTrader: (0)	no need to validate your purchase i so sick of hearing that same responds as well.. yea there are some tunes out there but not alot. as the market is centered around the 135i right now. we just have to play the waiting game
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10-07-2009, 02:39 PM	#5
Evice Major 194 Rep 1,457 Posts Drives: E92M3 Join Date: Apr 2009 Location: Somewhere here iTrader: (1)	I hate this waiting game. __________________ My Track Videos
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10-07-2009, 02:47 PM	#6
walkerkd Enlisted Member 4 Rep 31 Posts Drives: 128i Join Date: Aug 2009 Location: DFW iTrader: (0)	yea thats the price way pay for not getting on the 135i band wagon! haa haa.. why did you guys wanna be different!
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10-07-2009, 03:54 PM	#7
bigmicj Second Lieutenant 39 Rep 235 Posts Drives: 128i + M240iX Join Date: Jan 2008 Location: LaLaLand iTrader: (0)	I just did my first autox in my 128 and here's what I have: BMW Performance intake & strut brace. The only thing I really needed on the track was Non Run Flats. New tires will be my next and probably final mod for autox. The 128 is a VERY capable track car and you don't have to worry about your fuel pump crappin' out... yeah I said it!
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10-07-2009, 04:06 PM	#8
Wakka but no flokka 523 Rep 717 Posts Drives: M2C Join Date: Jun 2009 Location: Tampa iTrader: (2)	I like NA BMW engines personally wouldnt mind having the power of the 130i though.
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10-07-2009, 04:08 PM	#9
SlicktopTTZ Captain 11 Rep 685 Posts Drives: 91 300ZX Twin-Turbo, 2010 135i Join Date: Aug 2009 Location: Corpus Christi, Texas iTrader: (0)	Find someone to develop cams/valve springs, get head work/balancing to support m3 levels of rpm (8000 should be enough), shave your head to up compression (make sure to not go too much if you are gonna run 93 pump gas), find good headers/exhaust, get a light-weight dampened crank pully, carbon-fiber driveshaft, lightweight flywheel and of course a good intake and tune. You would probably make 300 to the wheels.
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10-07-2009, 04:21 PM	#10
Wakka but no flokka 523 Rep 717 Posts Drives: M2C Join Date: Jun 2009 Location: Tampa iTrader: (2)	that sounds rather expensive... id rather just a nice tune and maybe exhaust/intake.
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10-07-2009, 04:37 PM	#12
SlicktopTTZ Captain 11 Rep 685 Posts Drives: 91 300ZX Twin-Turbo, 2010 135i Join Date: Aug 2009 Location: Corpus Christi, Texas iTrader: (0)	It would be expensive but it would be one hell of an NA engine, I love high-revving I6s, my buddy has the 4-cylinder m3 chassis (not sure what the code is, I'm new to BMWs) stripped out with I believe a 2004 m3 engine (the 3.0 liter one) and drivetrain with all the bolt-ons. The throttle response is ridiculous and it feels/sounds like a proper race car!
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10-07-2009, 08:18 PM	#16
AlBel1214 Major 52 Rep 1,118 Posts Drives: past 135i, now c6, future M3?? Join Date: Aug 2008 Location: Philly iTrader: (0)	^^^ Totally agree.. I was just messing around! Ugh I hate the HPFP issues I envy the 128 for not having that problem ...The 128 is definitely an awesome as a built up track car so I can see why anyone would want to improve it a bit for those purposes... I have never auto x... only drag strip but hopefully can do that one day soon... Hey us 1'ers gotta stick together no matter what numbers come after the 1 right?! __________________ -----LS3 C6----- *z51 suspension,* *NPP dual mode exhaust(wild2mild),20% tint,* zr1 replica wheels, gloss black fender stripes** R.I.P SGM 135i w/ some mods
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10-08-2009, 02:57 PM	#20
rcracer_tx Banned 55 Rep 2,013 Posts Drives: BSM 135i Join Date: Apr 2008 Location: Texas iTrader: (0)	^ Nice to see a 240 with an sr20det that's not riced to hell. Clean car Back on topic: I'm not trying to sound like a jackass, but it seems financially stupid to go FI on the 128i. you'll be throwing more weight in the front with a turbo setup, so it will handle like a 135i with more lag, no warranty, and more than likely more cost.
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10-08-2009, 04:11 PM	#21
Evice Major 194 Rep 1,457 Posts Drives: E92M3 Join Date: Apr 2009 Location: Somewhere here iTrader: (1)	BACK TO THE TOPIC.. What the heck do we have to do in order to get a nice mod to get us upto ~270 HP? __________________ My Track Videos
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