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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 > SuperSprint Header Install/Review on N52



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      02-19-2013, 02:00 PM   #1
TheSt|G
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SuperSprint Header Install/Review on N52

Thought you guys might be interested in this thread I made over in the 128i N52 engine section as it applies to you as well.

http://www.1addicts.com/forums/showt...php?p=13506265
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      02-19-2013, 02:41 PM   #2
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youre using the stock exhaust on the car? also you said you did the golf tee mod? i thought that was only a 335 thing?
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      02-19-2013, 02:45 PM   #3
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Quote:
Originally Posted by SDemetris View Post
youre using the stock exhaust on the car? also you said you did the golf tee mod? i thought that was only a 335 thing?
Stock exhaust except the Supersprint headers. And no, the golf tee mod doesn't just apply to 335s.
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      02-19-2013, 03:00 PM   #4
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DUDE, Niiice! Thanks for posting this here!
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      02-19-2013, 03:07 PM   #5
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Quote:
Originally Posted by Dylanize View Post
DUDE, Niiice! Thanks for posting this here!
Not a problem.

I know the N52 doesn't get much love which is a shame as I think it is the last great engine BMW will make.
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      02-19-2013, 03:14 PM   #6
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Quote:
Originally Posted by TheSt|G View Post
Not a problem.

I know the N52 doesn't get much love which is a shame as I think it is the last great engine BMW will make.
It is a shame man! It's a great engine.

Now it's all about forced induction...
I don't know why but i just prefer natural aspiration. Anyone can slap a turbo on an engine a be like "look its more betterer"

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      02-19-2013, 03:17 PM   #7
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Quote:
Originally Posted by Dylanize View Post
It is a shame man! It's a great engine.

Now it's all about forced induction...
I don't know why but i just prefer natural aspiration. Anyone can slap a turbo on an engine a be like "look its more betterer"

No question in my mind. Over 200lbs lighter, no lag, no overheating, more reliable, and with the right mods the N52 is at 300 crank HP, which is perfect.
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      02-19-2013, 03:21 PM   #8
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Quote:
Originally Posted by TheSt|G View Post
No question in my mind. Over 200lbs lighter, no lag, no overheating, more reliable, and with the right mods the N52 is at 300 crank HP, which is perfect.


I saw you mentioned you had a golf tee mod?
I thought that was only for the 335??
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      02-19-2013, 03:23 PM   #9
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Quote:
Originally Posted by Dylanize View Post


I saw you mentioned you had a golf tee mod?
I thought that was only for the 335??
Nope, you can do it on the 128i as well.
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      02-19-2013, 03:46 PM   #10
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Quote:
Originally Posted by TheSt|G View Post
Nope, you can do it on the 128i as well.
But not 328i?

Please explain.
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      02-19-2013, 03:52 PM   #11
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Quote:
Originally Posted by Dylanize View Post
But not 328i?

Please explain.
Looks like not? I don't own a 328i, but RealOEM indicates you guys don't have the vacuum flap that the 128i has which is the part one disables in the "golf tee" mod.

128i:
http://realoem.com/bmw/partgrp.do?mo...62&hg=18&fg=20

328i:
http://realoem.com/bmw/partgrp.do?mo...22&hg=18&fg=20

That sucks for you guys.
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      02-19-2013, 04:08 PM   #12
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Quote:
Originally Posted by TheSt|G View Post
Looks like not? I don't own a 328i, but RealOEM indicates you guys don't have the vacuum flap that the 128i has which is the part one disables in the "golf tee" mod.

128i:
http://realoem.com/bmw/partgrp.do?mo...62&hg=18&fg=20

328i:
http://realoem.com/bmw/partgrp.do?mo...22&hg=18&fg=20

That sucks for you guys.
Ah I see, that's strange, so its a flap that controls output of the exhaust.

Well getting a P.E. soon anyways.
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      02-19-2013, 08:56 PM   #13
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I wish they did a before and after on their dyno graph you posted.
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      02-19-2013, 09:24 PM   #14
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Quote:
Originally Posted by Johnny D View Post
I wish they did a before and after on their dyno graph you posted.
Light red is before, dark red is after. Same for orange in torque.
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      02-19-2013, 09:37 PM   #15
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Quote:
Originally Posted by TheSt|G View Post
Light red is before, dark red is after. Same for orange in torque.
Im confused...

279.2 PS "standard performance"
277.3 PS "engine power"
219.4 PS "wheel power"

Graph shows almost a 20hp gain throughout the entire powerband, yet the actual numbers don't make sense to the graph.


EDIT: I think I get it, they didnt post any of the before numbers. Just wheel, estimated flywheel and "standard" corrected.
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      02-19-2013, 10:05 PM   #16
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Quote:
Originally Posted by Johnny D View Post
Im confused...

279.2 PS "standard performance"
277.3 PS "engine power"
219.4 PS "wheel power"

Graph shows almost a 20hp gain throughout the entire powerband, yet the actual numbers don't make sense to the graph.


EDIT: I think I get it, they didnt post any of the before numbers. Just wheel, estimated flywheel and "standard" corrected.
There is before # on supersprint website"
http://www.supersprint.com/en/prod-p...280BA__09.aspx

Before whp: 206.6 measures in PS, Tq is 307 Nm at engine (?)
After 219 PS @ wheels, Tq is 323 Nm
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      02-20-2013, 12:12 AM   #17
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Quote:
Originally Posted by andrey_gta View Post
There is before # on supersprint website"
http://www.supersprint.com/en/prod-p...280BA__09.aspx

Before whp: 206.6 measures in PS, Tq is 307 Nm at engine (?)
After 219 PS @ wheels, Tq is 323 Nm

Thanks! That's what I was looking for.
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      02-20-2013, 09:18 AM   #18
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Quote:
Originally Posted by Johnny D View Post
Im confused...

279.2 PS "standard performance"
277.3 PS "engine power"
219.4 PS "wheel power"

Graph shows almost a 20hp gain throughout the entire powerband, yet the actual numbers don't make sense to the graph.


EDIT: I think I get it, they didnt post any of the before numbers. Just wheel, estimated flywheel and "standard" corrected.
The numbers are only related to the gains, but the graph has the power band before as well.
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