Surrey Rolling Road

dopper99 · 12-22-2018, 07:49 AM

Not my video, but came across this with a lots of bmw’s, M3/4’s and a few other cars. Some surprising results in some cases.

And guess who turned up........ our old friend CazuaLLUK at 9:00 with his E92 M3........

Ajs_435d · 12-22-2018, 05:12 PM

Definetly an optimistic dyno ssr in my experience.

Hooded · 12-22-2018, 05:33 PM

Quote:

Originally Posted by Ajs_435d

Definetly an optimistic dyno ssr in my experience.

Agree!

Look at he guy at around 10 mins 20 seconds, is it just me or does he look like he's been dead a few days?

Ajs_435d · 12-22-2018, 05:53 PM

Quote:

Originally Posted by Hooded

Agree!

Look at he guy at around 10 mins 20 seconds, is it just me or does he look like he's been dead a few days?

Thats without watching this video.

He reminded me of beatlejuice.

More weirdly is the guy with the cupra - has he shaved all his moustache and chin but left round the sides?!

Lastly cazs neck.

Tengocity · 12-23-2018, 06:41 AM

Quote:

Originally Posted by Ajs_435d

Definetly an optimistic dyno ssr in my experience.

My M4 ran 478bhp as standard, so I tend to agree!

Hooded · 12-23-2018, 06:48 AM

Quote:

Originally Posted by Ajs_435d

cazs neck.

I see no neck, only an extension of the chin

RobUK · 12-24-2018, 07:21 AM

All those illegal number plates

Tengocity · 12-24-2018, 07:35 AM

Having actually watched it all the way through now, it's hard to say that SRR runs optimistic all the time. Plenty cars didn't fare so well, and some did. I do find the variability of outputs quite fascinating.

Knowing exactly what combinations of hardware mods and software mods actually make the difference is quite the minefield.

Hooded · 12-24-2018, 01:41 PM

Quote:

Originally Posted by Tengocity

Having actually watched it all the way through now, it's hard to say that SRR runs optimistic all the time. Plenty cars didn't fare so well, and some did. I do find the variability of outputs quite fascinating.

Knowing exactly what combinations of hardware mods and software mods actually make the difference is quite the minefield.

Im not surprised considering the same car had a 20 or 30 bhp difference between 2 runs one straight after the other on that dyno. It was mentioned on a thread on this forum back in 2017. I think you can only take the results as a very loose guide.

Ajs_435d · 12-25-2018, 09:45 AM

Quote:

Originally Posted by Tengocity

My M4 ran 478bhp as standard, so I tend to agree!

For me it doesn't seem to to give consistent results, a few guys cars I've tuned have always made more power on srr dyno around 5-7% more.

Wills2 · 12-25-2018, 10:28 AM

To get an accurate crank HP number you have to take the engine out and put it on engine dynamometer, that's what the manufacturer does.

WHP is what you should quote from a RR and generally only for showing a before and after tuning delta, these corrected and calculated, RR crank numbers are a nonsense.

Or of course figure your tunes to show the performance gain which is what actually matters.

Hooded · 12-25-2018, 11:24 AM

Quote:

Originally Posted by Wills2

To get an accurate crank HP number you have to take the engine out and put it on engine dynamometer, that's what the manufacturer does.

WHP is what you should quote from a RR and generally only for showing a before and after tuning delta, these corrected and calculated, RR crank numbers are a nonsense.

Or of course figure your tunes to show the performance gain which is what actually matters.

Agreed.

12-22-2018, 07:49 AM	#1
dopper99 Lieutenant General 3533 Rep 11,292 Posts Drives: Golf R Mk8 Join Date: Jun 2011 Location: UK iTrader: (1)	Surrey Rolling Road - Lots of cars dyno’d Not my video, but came across this with a lots of bmw’s, M3/4’s and a few other cars. Some surprising results in some cases. And guess who turned up........ our old friend CazuaLLUK at 9:00 with his E92 M3........ __________________ Current: Golf R Mk8 Previous: Golf R Mk7.5 Mercedes AMG C63 S Coupe F80 M3 Competition Pack
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12-22-2018, 05:12 PM	#2
Ajs_435d Lieutenant Colonel 355 Rep 1,846 Posts Drives: 435d m sport m performance Join Date: Jan 2014 Location: United Kingdom iTrader: (0)	Definetly an optimistic dyno ssr in my experience.
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12-24-2018, 07:21 AM	#7
RobUK Brigadier General 2821 Rep 4,939 Posts Drives: 340i MPPSK Join Date: Jun 2012 Location: Sussex, N.Yorks, UK iTrader: (0) Garage List 2015 340i MPPSK [0.00] 2001 Yamaha FZS1000 [0.00]	All those illegal number plates __________________ Life is a state of mind
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12-24-2018, 07:35 AM	#8
Tengocity General 8572 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	Having actually watched it all the way through now, it's hard to say that SRR runs optimistic all the time. Plenty cars didn't fare so well, and some did. I do find the variability of outputs quite fascinating. Knowing exactly what combinations of hardware mods and software mods actually make the difference is quite the minefield. __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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12-25-2018, 10:28 AM	#11
Wills2 Barge driver 8683 Rep 12,435 Posts Drives: 730d Join Date: Aug 2014 Location: UK iTrader: (0)	To get an accurate crank HP number you have to take the engine out and put it on engine dynamometer, that's what the manufacturer does. WHP is what you should quote from a RR and generally only for showing a before and after tuning delta, these corrected and calculated, RR crank numbers are a nonsense. Or of course figure your tunes to show the performance gain which is what actually matters. __________________ 730d/Z4C
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