✪ Alekshop 4.6L S65 Stroker - World's Highest HP NA Motor

BMRLVR · 02-13-2015, 04:43 PM

Quote:

Originally Posted by e46e92love

Most of the tech I basically understood, I guess what I was missing is not that you lose low end torque, but could lose low end smoothness and practicality.

That being said, I would rather lose that then have my engine go dead around 7k like other strokers and redline under 8k.

Thanks guys!!

Cheers,
e46e92

Although you will make less low end torque with a cammed stroker, if you look at the graphs it makes considerably more torque than a stock displacement S65 everywhere on the torque curve...... basically what I am saying is the stroker loses low end torque compared to a stroker with stock cams but will still be considerably more torquey than a 4.0L S65 everywhere and will drive much better on the road as a daily driver.

m3aviator · 02-15-2015, 07:35 PM

This one made 590hp to the wheel.

DaveDee · 07-03-2015, 01:30 AM

Sensational job Aleks, looks the goods.

tdott · 10-20-2016, 06:10 PM

Is this still the highest hp na s65?

Has there been any new developments?

6ixSpd · 10-20-2016, 06:28 PM

No video yet?

Gotta ear this!

tlow98 · 10-20-2016, 07:36 PM

I think this motor went ka-boom some time ago, right?

Hujan · 10-21-2016, 12:11 AM

Quote:

Originally Posted by tdott

Is this still the highest hp na s65?

Has there been any new developments?

I believe the 4.2L that MRF Engineering built has put down ~435 whp on 91 octane on a fairly rich tune. Of course, it's also hard to compare numbers from one dyno to another. The truth is these are all great motors and putting out comparable numbers.

Richbot · 10-21-2016, 03:06 PM

Quote:

Originally Posted by tdott

Is this still the highest hp na s65?

Has there been any new developments?

For the street? Yeah I bet. In race applications, there are more powerful applications:

http://www.engdev.com/2011-lmp2-engine-announcement-2/

So as long as you don't want to worry about lasting more than 24 hours or so, you have lots of options

Malek@MRF · 10-21-2016, 04:21 PM

Quote:

Originally Posted by tdott

Is this still the highest hp na s65?

Has there been any new developments?

Quote:

Originally Posted by Hujan

I believe the 4.2L that MRF Engineering built has put down ~435 whp on 91 octane on a fairly rich tune. Of course, it's also hard to compare numbers from one dyno to another. The truth is these are all great motors and putting out comparable numbers.

That's correct Hujan. The MRF 4.2 did 435 WHP @ 8900 RPM's on very conservative 91 octane calibration with stock intake & filter, stock pulleys. The 4.2 reaches maximum torque on the dyno at 315 RWTQ @ 4200 RPM versus 316 RWTQ @ 5700 RPM for the 4.6.

8600RPM · 10-21-2016, 07:09 PM

Malek did you use schrick cams?

Malek@MRF · 10-22-2016, 12:35 PM

Quote:

Originally Posted by 8600RPM

Malek did you use schrick cams?

They are custom Schrick cams. Please PM me for any info. I don't want to pollute Aleks' build thread.

Dave07997S · 10-22-2016, 02:27 PM

Quote:

Originally Posted by Malek@MRF

They are custom Schrick cams. Please PM me for any info. I don't want to pollute Aleks' build thread.

Malek when are you going to post a write up on your stroker?

8600RPM · 10-25-2016, 07:13 PM

So did this engine end up failing ?

L4ces · 10-25-2016, 09:47 PM

Quote:

Originally Posted by 8600RPM

So did this engine end up failing ?

Alekshop what's the story on this baby? Did you go back to the drawing board?

bryan292009 · 10-26-2016, 01:48 AM

Aleks, how well do you think the cams will help my ESS VT2-625 breathe? Any idea on what the gains would be?

L4ces · 10-26-2016, 08:54 AM

Since the last post from Alekshop was 06-21-2015 I wouldn't be surprised to never here a response.

ilikebmxbikes · 11-03-2016, 11:15 PM

My dinan stroker dyno'd a bit higher than the alekshop stroker with both on 91. My motor has almost 28k miles on it. I'm curious to why the dinan stroker dyno'd so low in the comparison thread from a while back.

Quote:

Originally Posted by Malek@MRF

That's correct Hujan. The MRF 4.2 did 435 WHP @ 8900 RPM's on very conservative 91 octane calibration with stock intake & filter, stock pulleys. The 4.2 reaches maximum torque on the dyno at 315 RWTQ @ 4200 RPM versus 316 RWTQ @ 5700 RPM for the 4.6.

so dope. I bet she sounds insane.

6ixSpd · 11-05-2016, 12:34 AM

Quote:

Originally Posted by ilikebmxbikes

My dinan stroker dyno'd a bit higher than the alekshop stroker with both on 91. My motor has almost 28k miles on it. I'm curious to why the dinan stroker dyno'd so low in the comparison thread from a while back.

Quote:

Originally Posted by Malek@MRF

That's correct Hujan. The MRF 4.2 did 435 WHP @ 8900 RPM's on very conservative 91 octane calibration with stock intake & filter, stock pulleys. The 4.2 reaches maximum torque on the dyno at 315 RWTQ @ 4200 RPM versus 316 RWTQ @ 5700 RPM for the 4.6.

so dope. I bet she sounds insane.

It was apparently a tuning issue.

Bolos · 11-05-2016, 04:30 PM

Quote:

Originally Posted by L4ces

Since the last post from Alekshop was 06-21-2015 I wouldn't be surprised to never here a response.

Check out my post about Bay Area shop in general forum....interesting read

L4ces · 11-06-2016, 08:11 AM

Quote:

Originally Posted by Bolos

Quote:

Originally Posted by L4ces

Since the last post from Alekshop was 06-21-2015 I wouldn't be surprised to never here a response.

Check out my post about Bay Area shop in general forum....interesting read

Interesting. I guess this thread was just click bait and has served its purpose. Seems to have a bad reputation, oh well.

Bimmed Out · 01-29-2017, 06:42 AM

Quote:

Originally Posted by Bolos

Check out my post about Bay Area shop in general forum....interesting read

Link?

02-15-2015, 07:35 PM	#90
m3aviator Banned 131 Rep 596 Posts Drives: BMWs Join Date: Apr 2014 Location: NJ iTrader: (0)	This one made 590hp to the wheel.
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07-03-2015, 01:30 AM	#91
DaveDee Major 532 Rep 1,464 Posts Drives: BMW X5M Comp Join Date: Oct 2010 Location: Gold Coast Australia iTrader: (0) Garage List 2021 X5M Competition [0.00]	Sensational job Aleks, looks the goods.
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10-20-2016, 06:10 PM	#92
tdott Brigadier General 3943 Rep 3,988 Posts Drives: M3 Join Date: Nov 2010 Location: South FL / 6ix iTrader: (4)	Is this still the highest hp na s65? Has there been any new developments? Last edited by tdott; 10-20-2016 at 06:15 PM..
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10-20-2016, 06:28 PM	#93
6ixSpd Save the manuals! 6015 Rep 6,746 Posts Drives: '16 M3, '23 718 Spyder Join Date: Feb 2016 Location: 416 iTrader: (4)	No video yet? Gotta ear this! __________________ '16 M3 \| '23 718 Spyder Past: E92 M3, F87 M2, E39 M5, etc
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10-20-2016, 07:36 PM	#94
tlow98 Major General 2188 Rep 5,002 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	I think this motor went ka-boom some time ago, right?
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10-21-2016, 07:09 PM	#98
8600RPM Lieutenant Colonel 657 Rep 1,749 Posts Drives: e92 m3 Join Date: Oct 2014 Location: AZ iTrader: (0)	Malek did you use schrick cams?
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10-25-2016, 07:13 PM	#101
8600RPM Lieutenant Colonel 657 Rep 1,749 Posts Drives: e92 m3 Join Date: Oct 2014 Location: AZ iTrader: (0)	So did this engine end up failing ?
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10-26-2016, 01:48 AM	#103
bryan292009 First Lieutenant 67 Rep 341 Posts Drives: 2011 E90 M3 W/ ZCP, ZPP, ZCW Join Date: Oct 2010 Location: Graffenwoehr, Germany iTrader: (0)	Aleks, how well do you think the cams will help my ESS VT2-625 breathe? Any idea on what the gains would be? __________________ E90 M3 W/ ESS VT2-625, Macht Schnell race X-Pipe, UUC Cat-back exhaust, Stoptech ST60
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10-26-2016, 08:54 AM	#104
L4ces Major 337 Rep 1,489 Posts Drives: 2008 E92 M3 Alpine White Join Date: Aug 2010 Location: NJ - NY iTrader: (0) Garage List 2008 M3 [0.00]	Since the last post from Alekshop was 06-21-2015 I wouldn't be surprised to never here a response.
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