Extensive Engine Modifications

**$w!ft** · 18-12-2009, 03:33 AM

Just thought this might be of interest to someone;

A guy in Greece has a E46 M3 with extensive engine mods and still running N/A configuration:

350whp whats that about 390hp? Interesting thing is that its higher than what E92 M3's are putting down

Quoting ""

ACCRALITE 12,5 : 1 pistons ( "shaved" block to go to 12,65 )
arrow pressision connecting rods
arp head studs
arp connecting rods studs
arp main studs
Oversized One Piece High Performance Stainless Steel Valves
Balanced and Blueprinted Valves
Balanced Springs
Resurfaced Face
Titanium Valve Spring Retainers
VAC High Performance Valve Springs
lightweight & balanced crank
OEM CSL carbon intake
ecu reprogramed / aplhaN management ( oem csl dme )
schrik cams 304/296 12,5mm lift
diamond coated cam followers
8.500 rpm limiter
Bosch larger fuel injectors ( 15% more fuel )
rogue power pulleys
custom headers
custom section 1 decat
custom Xpipe unresonated
eisenmann race muffler / one tip mufler

the last dyno run was 347 rear wheel power...it was with 290-282 cams...
on a rototest dyno that measure power to the wheel hub...

now the new dyno was done in a mustang dyno ( which here were i live is considered the most strict dyno that we have..many cars from tuners are let down in that room....

, the E92 was at 325-330rwp in there... ) and from what the owner told me it reads about 10% lower than the one i was using all these years....

so the new dyno was 340 at the wheels....
im going back for some more test runs cause the clutch let us down in the progress of the dyno session...

no dyno plot from the 340 but i am going to get one the next time i am going in a couple of weeks...

Nick

""

http://www.m3forum.net/m3forum/showt...Exhaust&page=4

NZ_M3 · 18-12-2009, 05:18 AM

Nick's a member on this forum ... his car is pretty well known.

http://www.cslregister.com/forum/showthread.php?t=2592

However you really can't compare numbers from a hub dyno to a rolling road - they'll read completely different - you can't even really compare dynos to dynos or dyno runs done on different days with different ambient temp, humidity ect

**alexk** · 18-12-2009, 07:35 AM

What is not known is for how long this engine was working.
I reckon the ratio is about 11 months in the garage, 1 month in the road.
It's not very reliable.

_Nathan_ · 18-12-2009, 09:28 AM

A lot of effort to go to for a road car IMO. 3.4 has to be easier?

The Gorilla · 18-12-2009, 07:34 PM

Hi,

Why mess around with a 3.4 ?

Go give KK around 30k and have a 3.7.

Regards,

The Gorilla.

_Nathan_ · 18-12-2009, 08:12 PM

cause a 3.4 doesn't cost 30k

3.7 sounds good though, got any more info?

18-12-2009, 03:33 AM	#1
$w!ft S5 - Full Throttle Join Date: Oct 2009 Location: London (W1) Posts: 309 Casino cash: $3311	Extensive Engine Modifications Just thought this might be of interest to someone; A guy in Greece has a E46 M3 with extensive engine mods and still running N/A configuration: 350whp whats that about 390hp? Interesting thing is that its higher than what E92 M3's are putting down Quoting "" ACCRALITE 12,5 : 1 pistons ( "shaved" block to go to 12,65 ) arrow pressision connecting rods arp head studs arp connecting rods studs arp main studs Oversized One Piece High Performance Stainless Steel Valves Balanced and Blueprinted Valves Balanced Springs Resurfaced Face Titanium Valve Spring Retainers VAC High Performance Valve Springs lightweight & balanced crank OEM CSL carbon intake ecu reprogramed / aplhaN management ( oem csl dme ) schrik cams 304/296 12,5mm lift diamond coated cam followers 8.500 rpm limiter Bosch larger fuel injectors ( 15% more fuel ) rogue power pulleys custom headers custom section 1 decat custom Xpipe unresonated eisenmann race muffler / one tip mufler the last dyno run was 347 rear wheel power...it was with 290-282 cams... on a rototest dyno that measure power to the wheel hub... now the new dyno was done in a mustang dyno ( which here were i live is considered the most strict dyno that we have..many cars from tuners are let down in that room...., the E92 was at 325-330rwp in there... ) and from what the owner told me it reads about 10% lower than the one i was using all these years.... so the new dyno was 340 at the wheels.... im going back for some more test runs cause the clutch let us down in the progress of the dyno session... no dyno plot from the 340 but i am going to get one the next time i am going in a couple of weeks... Nick "" http://www.m3forum.net/m3forum/showt...Exhaust&page=4

18-12-2009, 05:18 AM	#2
NZ_M3 S5, Sport On, DSC M-track Join Date: Jun 2008 Location: Auckland, New Zealand Posts: 1,434 Casino cash: $13579	Nick's a member on this forum ... his car is pretty well known. http://www.cslregister.com/forum/showthread.php?t=2592 However you really can't compare numbers from a hub dyno to a rolling road - they'll read completely different - you can't even really compare dynos to dynos or dyno runs done on different days with different ambient temp, humidity ect Last edited by NZ_M3; 18-12-2009 at 09:44 AM.

18-12-2009, 07:35 AM	#3
alexk Driving it like I nicked it Join Date: Mar 2009 Posts: 2,785 Casino cash: $29970	What is not known is for how long this engine was working. I reckon the ratio is about 11 months in the garage, 1 month in the road. It's not very reliable. __________________ www.clubcsl.com - I am a BMW Motorsport fan ! My youtube channel is here

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18-12-2009, 09:28 AM	#4
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	A lot of effort to go to for a road car IMO. 3.4 has to be easier?

18-12-2009, 07:34 PM	#5
The Gorilla S5, Sport Off, DSC M-track Join Date: Apr 2008 Posts: 740 Casino cash: $14401	Hi, Why mess around with a 3.4 ? Go give KK around 30k and have a 3.7. Regards, The Gorilla.

18-12-2009, 08:12 PM	#6
_Nathan_ Driving it like I nicked it Join Date: Sep 2008 Posts: 2,099 Casino cash: $13060	cause a 3.4 doesn't cost 30k 3.7 sounds good though, got any more info?