VF620 Dyno Run w/ RPi X Pipe

joe@trinityautosport · 10-12-2012, 08:03 PM

Hi Guys,

I just got done dyno'ing my car @ EAS. My baseline dyno was 532whp 353tq with OEM mufflers and running 91 octane (STD). I recently installed the RPi x pipe and wanted to re dyno to see how much power I made. I pulled an amazing 580whp and 379tq (STD)...that's +48whp and +26tq just from an X Pipe. Since we were so close to 600whp I asked Tom if we can throw in 5 gallons of 109 octane just to see what we can get. I put down 601whp and 391tq!!!! We were all amazed! BIG THANKS to Tom & Steve at EAS, Race Precision, and VF Engineering!

STD Smoothing 5 w/ Air Fuel

SAE Smoothing 5 w/ Air Fuel

SAE Smoothing 5 w/ BOOST

UNCORRECTED Smoothing 5

Conditions

DLSJ5 · 10-12-2012, 09:46 PM

Great #'s Joe, I didn't think race gas would add that much, it never has for me, might have to try it again next dyno. Awesome results, and THANK YOU for posting the boost graphs! The Airstrip event is going to have a nice amount of Boosted E9x M3's.

Longboarder · 10-12-2012, 09:55 PM

Damn I should have stayed to see you get 600. Congrats Joe!

whats77inaname · 10-12-2012, 10:28 PM

Joe, just so I'm clear on this....your internals are stock, you just have an x-pipe and no other mods? And you pulled that down with a little less than 8 lbs of boost?

CarbonFoot · 10-12-2012, 10:55 PM

Awesome numbers, but I have couple of questions. How was boost measured and how come there is a variance in boost between runs? I guess the answer to the first may answer the second. I though the VF kit produced 6 - 6.5 psi at sea level and since the boost is mechanically tied to engine speed, I don't see where the delta comes from.

Thanks...

CarbonFoot · 10-12-2012, 10:58 PM

Ah...just noticed the conditions.

IMG · 10-12-2012, 11:28 PM

Very nice !

kchu221 · 10-12-2012, 11:46 PM

that crazy gains from just an x pipe! does the x pipe delete the cats and resonators??

rjd598 · 10-13-2012, 08:38 PM

Quote:

Originally Posted by kchu221

that crazy gains from just an x pipe! does the x pipe delete the cats and resonators??

Cats are deleted and resonators I think as well but not 100% positive

tom @ eas · 10-13-2012, 08:45 PM

Quote:

Originally Posted by kchu221

that crazy gains from just an x pipe! does the x pipe delete the cats and resonators??

Race Pipe = no cats or resonators. Exhaust is LOUD at over 120dB, everyone was covering their ears in the shop at WOT.

Joe: Congrats on getting into the 600 club!

BarryDaviso · 10-14-2012, 09:34 PM

How was boost measured and how come there is a variance in boost between runs

tom @ eas · 10-14-2012, 09:47 PM

Quote:

Originally Posted by BarryDaviso

How was boost measured and how come there is a variance in boost between runs

Carbonfoot stated earlier in the thread: conditions.

Runs 11 & 17 alone on the conditions will show a 30F difference in outside temp, as the runs were on different days in our facility.

flipm3 · 10-15-2012, 05:06 AM

Amazing what difference freeing up the exhaust does on these boosted S65B40s!

Congrats on the huge gains!

info@trinityautosport · 10-15-2012, 11:58 AM

its just the rasp with the x-pipe, needs mufflers now =)

McKenna Performance · 10-15-2012, 12:44 PM

Great gains. With a high flow muffler setup ( akra slip-on), I can't imagine what it'll put down!

pbonsalb · 10-15-2012, 01:47 PM

How much power does a rear exhaust add on a supercharged car? It adds nothing or very little on a naturally aspirated car. A good x-pipe adds up to about 25 rwhp on a naturally aspirated car, so I see those gains being leveraged by boost on a supercharged car.

m33 · 10-15-2012, 02:48 PM

60-130's ??? Back these numbers up

info@trinityautosport · 10-15-2012, 04:16 PM

Quote:

Originally Posted by pbonsalb

How much power does a rear exhaust add on a supercharged car? It adds nothing or very little on a naturally aspirated car. A good x-pipe adds up to about 25 rwhp on a naturally aspirated car, so I see those gains being leveraged by boost on a supercharged car.

correct, we were expecting around +30whp for sure with the x-pipe initially. next we want the rest of the RPI setup mainly to improve the sound, but the real gains of an exhaust are from the x-pipe/cat delete.

joe@trinityautosport · 10-16-2012, 01:15 PM

Quote:

Originally Posted by DLSJ5

Great #'s Joe, I didn't think race gas would add that much, it never has for me, might have to try it again next dyno. Awesome results, and THANK YOU for posting the boost graphs! The Airstrip event is going to have a nice amount of Boosted E9x M3's.

No worries...hope to see you there

Quote:

Originally Posted by Longboarder

Damn I should have stayed to see you get 600. Congrats Joe!

Thanks bro! Good meeting you too.

Quote:

Originally Posted by whats77inaname

Joe, just so I'm clear on this....your internals are stock, you just have an x-pipe and no other mods? And you pulled that down with a little less than 8 lbs of boost?

Yes sir! Stock internals and JUST a RPi X pipe and non other mods.

Quote:

Originally Posted by CarbonFoot

Awesome numbers, but I have couple of questions. How was boost measured and how come there is a variance in boost between runs? I guess the answer to the first may answer the second. I though the VF kit produced 6 - 6.5 psi at sea level and since the boost is mechanically tied to engine speed, I don't see where the delta comes from.

Thanks...

The variance is there because of the weather

Quote:

Originally Posted by kchu221

that crazy gains from just an x pipe! does the x pipe delete the cats and resonators??

I know! I was surprised myself! The RPI x pipe deletes the cats and resonators

Quote:

Originally Posted by tom @ eas

Race Pipe = no cats or resonators. Exhaust is LOUD at over 120dB, everyone was covering their ears in the shop at WOT.

Joe: Congrats on getting into the 600 club!

Seriously it was loud in there...lol..thanks Tom!

Quote:

Originally Posted by BarryDaviso

How was boost measured and how come there is a variance in boost between runs

Weather conditions.

Quote:

Originally Posted by flipm3

Amazing what difference freeing up the exhaust does on these boosted S65B40s!

Congrats on the huge gains!

Thanks!

Quote:

Originally Posted by pbonsalb

How much power does a rear exhaust add on a supercharged car? It adds nothing or very little on a naturally aspirated car. A good x-pipe adds up to about 25 rwhp on a naturally aspirated car, so I see those gains being leveraged by boost on a supercharged car.

I don't think just adding mufflers will gain anything.

Quote:

Originally Posted by m33

60-130's ??? Back these numbers up

I would...Can someone let me borrow their vbox?

THE-FN-MAN · 10-16-2012, 09:22 PM

Holy moly man! I leave for a few days and come back to you pushing 600 to the tires!?! Congrats dude! Told ya race gas would make a big difference

mad props again man, can't wait to meet up!

Omar@VelosDesignwerks · 10-17-2012, 10:44 AM

Great #'s , congrats and enjoy in good health!

joe@trinityautosport · 10-17-2012, 01:47 PM

Quote:

Originally Posted by THE-FN-MAN

Holy moly man! I leave for a few days and come back to you pushing 600 to the tires!?! Congrats dude! Told ya race gas would make a big difference

mad props again man, can't wait to meet up!

LOL...Thanks!

Quote:

Originally Posted by Omar@VelosDesignwerks

Great #'s , congrats and enjoy in good health!

Thank you!

10-12-2012, 08:03 PM	#1
joe@trinityautosport 213 Rep 1,385 Posts Drives: E92 M3 \| F10 M5 Join Date: Apr 2012 Location: Anaheim, CA iTrader: (10)	VF620 Dyno Run w/ RPi X Pipe Hi Guys, I just got done dyno'ing my car @ EAS. My baseline dyno was 532whp 353tq with OEM mufflers and running 91 octane (STD). I recently installed the RPi x pipe and wanted to re dyno to see how much power I made. I pulled an amazing 580whp and 379tq (STD)...that's +48whp and +26tq just from an X Pipe. Since we were so close to 600whp I asked Tom if we can throw in 5 gallons of 109 octane just to see what we can get. I put down 601whp and 391tq!!!! We were all amazed! BIG THANKS to Tom & Steve at EAS, Race Precision, and VF Engineering! STD Smoothing 5 w/ Air Fuel SAE Smoothing 5 w/ Air Fuel SAE Smoothing 5 w/ BOOST UNCORRECTED Smoothing 5 Conditions Last edited by joe@trinityautosport; 10-12-2012 at 08:09 PM..
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10-12-2012, 09:46 PM	#2
DLSJ5 Brigadier General 529 Rep 4,054 Posts Drives: 2024 G82 Xdrive Comp Join Date: Dec 2006 Location: CA iTrader: (1)	Great #'s Joe, I didn't think race gas would add that much, it never has for me, might have to try it again next dyno. Awesome results, and THANK YOU for posting the boost graphs! The Airstrip event is going to have a nice amount of Boosted E9x M3's. __________________ 24 G82 Xdrive Comp 16 F82 M4 DCT - ZCP - JB4 - 556WHP / 570WTQ 08 ESS VT3-750 - 60-130MPH 6.14s - 10.81 @ 135.13 MPH 690WHP/463WTQ 08 E92 M3 - 1/2 Mile Trap Speed WR - 174.13 MPH
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10-12-2012, 09:55 PM	#3
Longboarder Major General 3479 Rep 6,785 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	Damn I should have stayed to see you get 600. Congrats Joe! __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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10-12-2012, 10:28 PM	#4
whats77inaname Banned 841 Rep 3,387 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	Joe, just so I'm clear on this....your internals are stock, you just have an x-pipe and no other mods? And you pulled that down with a little less than 8 lbs of boost?
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10-12-2012, 10:55 PM	#5
CarbonFoot Lieutenant 42 Rep 427 Posts Drives: 2024 M3 CS Join Date: Dec 2011 Location: CA - Bay Area iTrader: (3)	Awesome numbers, but I have couple of questions. How was boost measured and how come there is a variance in boost between runs? I guess the answer to the first may answer the second. I though the VF kit produced 6 - 6.5 psi at sea level and since the boost is mechanically tied to engine speed, I don't see where the delta comes from. Thanks...
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10-12-2012, 10:58 PM	#6
CarbonFoot Lieutenant 42 Rep 427 Posts Drives: 2024 M3 CS Join Date: Dec 2011 Location: CA - Bay Area iTrader: (3)	Ah...just noticed the conditions.
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10-12-2012, 11:28 PM	#7
IMG 1160 Rep 7,704 Posts Drives: E36 M3 Track car,Ess E90 M3 DD Join Date: Feb 2008 Location: Location iTrader: (6)	Very nice !
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10-12-2012, 11:46 PM	#8
kchu221 JDM whore 193 Rep 3,341 Posts Drives: 2009 997.1 Turbo Join Date: Jan 2012 Location: los angeles iTrader: (11)	that crazy gains from just an x pipe! does the x pipe delete the cats and resonators?? __________________ 2013 Lamborghini Gallardo LP550-2
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10-14-2012, 09:34 PM	#11
BarryDaviso New Member 0 Rep 12 Posts Drives: bmw Join Date: Sep 2012 Location: gogo iTrader: (0)	How was boost measured and how come there is a variance in boost between runs __________________
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10-15-2012, 05:06 AM	#13
flipm3 E46 + E90 + F80 193 Rep 2,895 Posts Drives: E46 + E90 + F80 Join Date: Jul 2008 Location: Illinois iTrader: (1) Garage List 2009 BMW M3 [0.00] 2002 BMW M3 [0.00]	Amazing what difference freeing up the exhaust does on these boosted S65B40s! Congrats on the huge gains! __________________ F80 M3 DCT\|Alpine White . Black Leather \| My Build Thread E90 M3 DCT\|Melbourne Red . Speed Cloth \| My Build Thread E46 M3 6MT\|Jet Black . Black Nappa Leather \| My Build Thread
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10-15-2012, 11:58 AM	#14
info@trinityautosport 283 Rep 7,518 Posts Drives: F13 M6 Join Date: Apr 2012 Location: Anaheim, CA iTrader: (0)	its just the rasp with the x-pipe, needs mufflers now =)
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10-15-2012, 12:44 PM	#15
McKenna Performance 38 Rep 389 Posts Drives: BMW M3 Join Date: Apr 2012 Location: Norwalk, Ca iTrader: (7)	Great gains. With a high flow muffler setup ( akra slip-on), I can't imagine what it'll put down!
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10-15-2012, 01:47 PM	#16
pbonsalb Lieutenant General 5566 Rep 11,003 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	How much power does a rear exhaust add on a supercharged car? It adds nothing or very little on a naturally aspirated car. A good x-pipe adds up to about 25 rwhp on a naturally aspirated car, so I see those gains being leveraged by boost on a supercharged car.
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10-15-2012, 02:48 PM	#17
m33 Banned 115 Rep 2,682 Posts Drives: E92 VT650 MCB Individual Join Date: Dec 2008 Location: CT iTrader: (5)	60-130's ??? Back these numbers up
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10-16-2012, 09:22 PM	#20
THE-FN-MAN Captain 39 Rep 890 Posts Drives: E92 M3 x2 Join Date: Feb 2012 Location: the wood iTrader: (0)	Holy moly man! I leave for a few days and come back to you pushing 600 to the tires!?! Congrats dude! Told ya race gas would make a big difference mad props again man, can't wait to meet up!
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10-17-2012, 10:44 AM	#21
Omar@VelosDesignwerks Colonel 456 Rep 2,036 Posts Drives: Different Ones Join Date: Feb 2012 Location: Miami iTrader: (1)	Great #'s , congrats and enjoy in good health!
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