VAC 4.4 Stroker Dyno Results

Brian_VACsales · 04-12-2013, 10:06 AM

One of our clients in Europe picked up our 4.4 stroker kit a few weeks ago and quickly built an engine to hit the track. It was tuned with Pectel, just like the previously posted 4.4L S65 we built here at VAC. I should have another dyno sheet coming soon with more range. LOVE the S65....

As always, we have 4.4L stroker cranks in stock

kiln · 04-12-2013, 10:22 AM

So its about 580 Crank Horsepower @ 8250 rpm.. plus u have to run a compression ratio of 13.5:1 (race gas) and aftermarket ecu to get that. I would like to see some results that we can expect for a street stroker.

Brian_VACsales · 04-12-2013, 10:28 AM

With cams I suspect this engine will make 600hp. We may find out soon ;-)

The BMW M2 GTS 4.4L makes 444hp.

The Dinan 'street' 4.6L makes 525hp.

VCMpower · 04-12-2013, 10:42 AM

Intriguing

whats77inaname · 04-12-2013, 10:47 AM

Quote:

Originally Posted by Mike@VAC

With cams I suspect this engine will make 600hp. We may find out soon ;-)

The BMW M2 GTS 4.4L makes 444hp.

The Dinan 'street' 4.6L makes 525hp.

That's pretty schweet! But my 2 questions are:
1) The 2 aforementioned cars.....what octane gas were they using to get those numbers? and
2) How do you think the VAC kit will do on 93 octane? I would ask about E85, but I feel that that might be an unreal expectation.

pbonsalb · 04-12-2013, 11:07 AM

Why do horsepower and torque cross at 6600 rpm?

surlynkid · 04-12-2013, 11:24 AM

nice, but i would hate to have to buy 100 octane at $8.75/gal every day.

Chriskm3 · 04-12-2013, 11:48 AM

High compression. Solid numbers but will vary will 91 oct gas. I would like to see dyno on street gas.

CanAutM3 · 04-12-2013, 11:54 AM

Quote:

Originally Posted by pbonsalb

Why do horsepower and torque cross at 6600 rpm?

Torque units in N-m (din Tq). See legend on top of graph

m33 · 04-12-2013, 01:32 PM

Brian_VACsales · 04-12-2013, 02:05 PM

Quote:

Originally Posted by whats77inaname

That's pretty schweet! But my 2 questions are:
1) The 2 aforementioned cars.....what octane gas were they using to get those numbers? and
2) How do you think the VAC kit will do on 93 octane? I would ask about E85, but I feel that that might be an unreal expectation.

1. Pump gas.
2. We have only built and supplied track/race engines. Our 'kit' consists of a crankshaft, connecting rods and pistons. You can choose a street friendly CR if you wish

Quote:

Originally Posted by surlynkid

nice, but i would hate to have to buy 100 octane at $8.75/gal every day.

Quote:

Originally Posted by Chriskm3

High compression. Solid numbers but will vary will 91 oct gas. I would like to see dyno on street gas.

This is a race engine. Octane is your friend

This was not built for street use.

Soorena · 04-12-2013, 03:11 PM

Good stuff Mike.

Aggressive cams are a must for that setup. Stage 3 head + this = BOOM!

Brian_VACsales · 04-12-2013, 03:12 PM

These guys are super high level engine bosses so more is in store - this is not the only kit they bought

SflBimmer8484 · 04-12-2013, 03:17 PM

That's a good power increase!

Soorena · 04-12-2013, 03:32 PM

Quote:

Originally Posted by Mike@VAC

These guys are super high level engine bosses so more is in store - this is not the only kit they bought

Awesome.

Aren't these guys located in Spain by any chance?

whats77inaname · 04-12-2013, 08:22 PM

Quote:

Originally Posted by Mike@VAC

1. Pump gas.
2. We have only built and supplied track/race engines. Our 'kit' consists of a crankshaft, connecting rods and pistons. You can choose a street friendly CR if you wish

I'd like to see where the other 2 engine dynos @ on 100 octane to get a more accurate comparison.

kiln · 04-12-2013, 09:36 PM

Quote:

Originally Posted by whats77inaname

I'd like to see where the other 2 engine dynos @ on 100 octane to get a more accurate comparison.

The other engines are not designed with a compression ratio of 13.5:1

whats77inaname · 04-12-2013, 09:47 PM

Quote:

Originally Posted by kiln

The other engines are not designed with a compression ratio of 13.5:1

I understand that, but if the attempt was made to show stroker vs stroker vs stroker, notwithstanding the c/r, I'd like to see what each makes when that variable is constant.

04-12-2013, 10:06 AM	#1
Brian_VACsales Captain 193 Rep 933 Posts Drives: E92 M3 VF Supercharged, 135i Join Date: Feb 2011 Location: Philadelphia, PA iTrader: (0)	VAC 4.4 Stroker Dyno Results One of our clients in Europe picked up our 4.4 stroker kit a few weeks ago and quickly built an engine to hit the track. It was tuned with Pectel, just like the previously posted 4.4L S65 we built here at VAC. I should have another dyno sheet coming soon with more range. LOVE the S65.... As always, we have 4.4L stroker cranks in stock __________________ Brian Casella Sales Representative, VAC Motorsports Office: 215.462.4666 \| Fax: 215.462.4667 EXT 13 \| Email: brian@vacmotorsports.com
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04-12-2013, 10:22 AM	#2
kiln Lieutenant 55 Rep 545 Posts Drives: 2011 E90 M3 Join Date: Oct 2010 Location: New Orleans, LA iTrader: (7)	So its about 580 Crank Horsepower @ 8250 rpm.. plus u have to run a compression ratio of 13.5:1 (race gas) and aftermarket ecu to get that. I would like to see some results that we can expect for a street stroker.
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04-12-2013, 10:28 AM	#3
Brian_VACsales Captain 193 Rep 933 Posts Drives: E92 M3 VF Supercharged, 135i Join Date: Feb 2011 Location: Philadelphia, PA iTrader: (0)	With cams I suspect this engine will make 600hp. We may find out soon ;-) The BMW M2 GTS 4.4L makes 444hp. The Dinan 'street' 4.6L makes 525hp. __________________ Brian Casella Sales Representative, VAC Motorsports Office: 215.462.4666 \| Fax: 215.462.4667 EXT 13 \| Email: brian@vacmotorsports.com
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04-12-2013, 10:42 AM	#4
VCMpower Banned 25 Rep 873 Posts Drives: 2010 Dakar, 2013 Fire Orange Join Date: Jan 2010 Location: Victoria B.C. iTrader: (0)	Intriguing
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04-12-2013, 11:07 AM	#6
pbonsalb Lieutenant General 5227 Rep 10,611 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	Why do horsepower and torque cross at 6600 rpm?
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04-12-2013, 11:24 AM	#7
surlynkid Major 115 Rep 1,470 Posts Drives: 2013 E92 M3 Join Date: Apr 2012 Location: League City, TX iTrader: (1) Garage List 2010 Porsche GT3 [0.00] 1988 Toyota 4Runner [0.00] 1995 Toyota T-100 4x4 [0.00] 2013 BMW M3 [0.00]	nice, but i would hate to have to buy 100 octane at $8.75/gal every day. __________________ Stoptech 380mm/355mm \| PFC08 / Pagid RS-29 \| Akrapovic EVO - CF tips \| Benvo Tune \| MS UDP \| AA air filter \| MCS 2-way with 700/1000lb springs \| Solid bushings and adjustable links \| RD front swaybar \| Apex EC-7 18x10 square 275/35-18 NT01 \| Turner Race Studs \| GT4 Brake Cooling \| GT4 Power Steering Cooling \| Alekshop Oil Cooler \| Performance Steering Wheel \| \| CF Spoiler \| Varis System 1 Full CF Diffuser \| Extended Paddle Shifters \| Schroth Quick Fit Pro \| Turner Steering Rack Stops \| Vorshlag Camber Plates
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04-12-2013, 11:48 AM	#8
Chriskm3 Colonel 59 Rep 2,186 Posts Drives: M3 Join Date: Jul 2012 Location: Toronto iTrader: (4)	High compression. Solid numbers but will vary will 91 oct gas. I would like to see dyno on street gas. __________________ Vf supercharger + tune/H&R coils/ Akra evolution exhaust/Volk te37/ Rs-3 tires/ Brembos /TIal BOV/ OSS blacked out headlights/LUX v3/Led taillights/ Challenge Front lip/ P3 vent gauge/ F10 m5 shift mob/Matte black front grills/ And a funky air fresher
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04-12-2013, 01:32 PM	#10
m33 Banned 114 Rep 2,682 Posts Drives: E92 VT650 MCB Individual Join Date: Dec 2008 Location: CT iTrader: (5)
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04-12-2013, 03:11 PM	#12
Soorena Captain 80 Rep 850 Posts Drives: M3 6MT Join Date: Dec 2011 Location: Paris iTrader: (0) Garage List 2013 BMW S1000RR [0.00] 2013 Ferrari 458 [9.66] 2012 Jaguar XJ SWB ... [10.00] 2011 E92 M3 [10.00]	Good stuff Mike. Aggressive cams are a must for that setup. Stage 3 head + this = BOOM!
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04-12-2013, 03:12 PM	#13
Brian_VACsales Captain 193 Rep 933 Posts Drives: E92 M3 VF Supercharged, 135i Join Date: Feb 2011 Location: Philadelphia, PA iTrader: (0)	These guys are super high level engine bosses so more is in store - this is not the only kit they bought __________________ Brian Casella Sales Representative, VAC Motorsports Office: 215.462.4666 \| Fax: 215.462.4667 EXT 13 \| Email: brian@vacmotorsports.com
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04-12-2013, 03:17 PM	#14
SflBimmer8484 Brigadier General 1467 Rep 3,157 Posts Drives: . Join Date: Dec 2011 Location: Florida iTrader: (5)	That's a good power increase!
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