G80 Comp Baseline Dyno (93 Octane/DynoJet)

NCG80M3 · 05-31-2021, 10:14 AM

Hello everyone,

I just got my G80 Comp dyno'd and it put down great power. Per usual the claimed 503/479 numbers are not accurate. Check out my video and graph below.

Can't wait to get this monster tuned.

chris3g · 05-31-2021, 10:30 AM

They are good numbers but I don't think it's accurate to use STD correction on turbocharged engine like this one and it is applying a big 1.06 correction factor here, so the actual uncorrected max power was more like 465 which is a little closer to how it's rated.

vetteflier · 05-31-2021, 04:05 PM

The 503 hp rating was a joke. Looked at 10 dyno pulls from US, UK and Germany--and thanks for yours. The minimum crank hp using the very conservative 12% vice older 15%, driveline loss shows 550+ to the crank. Your average pull shows 555 to the crank and about the same torque. The DynoJet is one of the most accurate, imo. Gave the best readings for Corvettes and very consistent shop to shop doing the pulls.

NCG80M3 · 05-31-2021, 05:37 PM

Quote:

Originally Posted by chris3g

They are good numbers but I don't think it's accurate to use STD correction on turbocharged engine like this one and it is applying a big 1.06 correction factor here, so the actual uncorrected max power was more like 465 which is a little closer to how it's rated.

I know different shops and dynos use different correction factors. This is the one my shop uses and it is only to have a baseline. Once I start adding mods I will at least have something to go off of to measure the gains. That is the real purpose of the dyno because of all of the variables IMO.

NCG80M3 · 05-31-2021, 05:39 PM

Quote:

Originally Posted by vetteflier

The 503 hp rating was a joke. Looked at 10 dyno pulls from US, UK and Germany--and thanks for yours. The minimum crank hp using the very conservative 12% vice older 15%, driveline loss shows 550+ to the crank. Your average pull shows 555 to the crank and about the same torque. The DynoJet is one of the most accurate, imo. Gave the best readings for Corvettes and very consistent shop to shop doing the pulls.

BMW has a history of underrated their engines so we where not surprised.

Dave07997S · 06-04-2021, 10:21 PM

468 SAE, nice. However, its that torque band..yikes just epic.

speedyman · 06-06-2021, 06:28 PM

These are fantastic numbers, WOW.

05-31-2021, 10:14 AM	#1
NCG80M3 First Lieutenant 664 Rep 364 Posts Drives: 2019 F90 M5 Comp Join Date: Jan 2019 Location: Charlotte, NC iTrader: (0) Garage List [5.00] 2019 BMW M5 Competi ... [9.65]	G80 Comp Baseline Dyno (93 Octane/DynoJet) Hello everyone, I just got my G80 Comp dyno'd and it put down great power. Per usual the claimed 503/479 numbers are not accurate. Check out my video and graph below. Can't wait to get this monster tuned. Attached Images __________________ 19" BMW F90 M5 Comp Utku Noa 93 Tune: 700hp/680tq Check out my Socials: https://solo.to/whatsyourforte
	Appreciate 3 forza19763398.00 G80BSM282.50 vetteflier473.50 Tweet Quote

05-31-2021, 10:30 AM	#2
chris3g Major 1569 Rep 1,256 Posts Drives: 2023 M3 xdrive Join Date: Jan 2012 Location: NJ iTrader: (4)	They are good numbers but I don't think it's accurate to use STD correction on turbocharged engine like this one and it is applying a big 1.06 correction factor here, so the actual uncorrected max power was more like 465 which is a little closer to how it's rated.
	Appreciate 1 NCG80M3663.50 Quote

05-31-2021, 04:05 PM	#3
vetteflier Captain 474 Rep 609 Posts Drives: 2021 BMW M4 Competition Join Date: Apr 2021 Location: Colorado iTrader: (0)	The 503 hp rating was a joke. Looked at 10 dyno pulls from US, UK and Germany--and thanks for yours. The minimum crank hp using the very conservative 12% vice older 15%, driveline loss shows 550+ to the crank. Your average pull shows 555 to the crank and about the same torque. The DynoJet is one of the most accurate, imo. Gave the best readings for Corvettes and very consistent shop to shop doing the pulls.
	Appreciate 1 NCG80M3663.50 Quote

06-04-2021, 10:21 PM	#6
Dave07997S Brigadier General 721 Rep 3,964 Posts Drives: 2020 Ford Mustang GT Join Date: May 2009 Location: El Segundo, CA iTrader: (1)	468 SAE, nice. However, its that torque band..yikes just epic. __________________ 2020 Ford Mustang GT 6MT PP1 444rwhp (Sold)2013 M3 Coupe-MR/BLK ZCP, 2011 M3 Coupe-MR/Blk 2007 Porsche 997C2S Speed Yellow/Blk sport seats 2004 BMW M3 Imola/Blk
	Appreciate 1 NCG80M3663.50 Quote

06-06-2021, 06:28 PM	#7
speedyman Banned 429 Rep 756 Posts Drives: 2021 X5 M50i, 2016 Z06 Join Date: Sep 2019 Location: SW FL iTrader: (0)	These are fantastic numbers, WOW.
	Appreciate 1 NCG80M3663.50 Quote