Are my dyno numbers off?

vbb · 01-12-2008, 11:18 AM

edit: I figured it out... the dyno guy didn't start my runs until over 4000rpms, thereby missing out on the low end torque since this car peaks well before that. Whew... glad to know my car isn't broken. Now I need to get another dyno done.

ChaneRZ · 01-12-2008, 11:32 AM

um kinda low. you should be getting 3XX something hp/tq. i'd try another dyno facility.

Alabama_Man · 01-12-2008, 01:35 PM

The 335i isn't meant to be a fast car, 296HP sounds about right for a stock car. I guess you could mod your car to give it more power but it wouldn't be anything drastic and would probably void your warranty.

ybbiz34 · 01-12-2008, 01:38 PM

Quote:

Originally Posted by Alabama_Man

The 335i isn't meant to be a fast car, 296HP sounds about right for a stock car. I guess you could mod your car to give it more power but it wouldn't be anything drastic and would probably void your warranty.

That was his dyno with the SSTT installed.

I would have crapped myself if I had read he put down 296 stock.

djrobroe · 01-12-2008, 01:39 PM

read the post... he says he has an sstt.... your dyno numbers do seem off... they should be in the 300's.... i would say try another dyno facility as well...

Alabama_Man · 01-12-2008, 01:54 PM

Quote:

Originally Posted by ybbiz34

That was his dyno with the SSTT installed.

I would have crapped myself if I had read he put down 296 stock.

Oh you're right, I misread his post.

Bubbles · 01-12-2008, 02:20 PM

Quote:

Originally Posted by vbb

A couple of other people out there were complaining about their numbers being lower than expected as well, but then again almost everyone thinks their car is going to put down more than it does. It's weird, my power curves look great... just like everyone else's on the forums. My A/F ratios are right on as well. My track times are also on par with where they should be, if not a bit better. But my dyno numbers seem a good 10-20whp lower.

Do you think SAE vs. STD correction could have made the difference?

STD would have provided higher numbers 5-7 whp.

E90ice · 01-12-2008, 03:34 PM

looks about right to me. I mean, Turbo Tuner provides about 30whp. Considering that most 335 dyno around 270whp...almost 300whp sounds about right.

5soko · 01-13-2008, 09:44 AM

was this a dynojet with SAE or STD correction??.VBB your def right, the baseline is the real story here, if ur in the 260's stock this def makes sense. but could be the dyno and the correction method.

vbb · 01-13-2008, 10:02 AM

Quote:

Originally Posted by 5sokol335icoupe

was this a dynojet with SAE or STD correction??.VBB your def right, the baseline is the real story here, if ur in the 260's stock this def makes sense. but could be the dyno and the correction method.

SAE.

Sniz · 01-13-2008, 10:11 AM

For comparison, my car made 286.xwhp stock on a dynojet

5soko · 01-13-2008, 10:16 AM

tho i see ur intentions^, if it wasnt on the same dyno on the same day its hard to compare the peak numbers. i once went to a dyno where my car suppose to make about 200WHP and it only made 165WHP.

Sniz · 01-13-2008, 10:45 AM

you should go back to that same dyno and retest w/ the bypass plugs in to put down your baseline run. Its not difficult. I can take my bypass plugs in or out in under 2 minutes.

Its the only way you'll know really how much extra power your upgrades have given you.

RMRC · 01-13-2008, 11:15 AM

Regarding HP, I think your car is putting down right about what it should with the SSTT. But your TQ number is really low. Remember SAE will show lower than STD (about 2-2.5% lower I think). With this in mind here are my STD Turbo Tuner dynos from when I had it installed and on 91 octane. 296.1 (1.025) = ~304 so right in line. Don't know what's going on with that TQ though.

SCCAForums.com · 01-13-2008, 11:51 AM

SYD are not always higher. If the dyno is below sea level STD would be lower than SAE. Your quarter mile is good, it is the dyno. But your TQ does seem off, but without having a baseline tough to say where it is from. As well as what rpm did the operator start at. Peace.

SCCAForums.com · 01-13-2008, 08:14 PM

vbb... that is EXACTLY it... that makes a LOT more Sense!!! Alot of times... places don't know how to dyno these cars... with the kick down and everything... it can be tricky... when I go to the dyno... they know, to let me do the pulls!

Good Stuff... later,
Dave

5soko · 01-14-2008, 12:28 PM

lol that sucks. next time do the dyno yourself if u can. take all traction off ,just put it in 4th and push down until u feel the kickdown and just hold it there, dont pass the kickdown of course or it will drop u a gear.

btw how many runs did u do. im sure on another run or two, u could have got a easy 300+WHP and about 320+Wftlb

01-12-2008, 11:18 AM	#1
vbb Major 2224 Rep 1,002 Posts Drives: 2022 M4 manual Join Date: Jul 2007 Location: present iTrader: (4)	Power? edit: I figured it out... the dyno guy didn't start my runs until over 4000rpms, thereby missing out on the low end torque since this car peaks well before that. Whew... glad to know my car isn't broken. Now I need to get another dyno done. Last edited by vbb; 06-23-2008 at 09:32 AM..
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01-12-2008, 11:32 AM	#2
ChaneRZ If You Aint First, You're last !!! 96 Rep 2,509 Posts Drives: 08 BMW 335i, 01 Honda Prelude Join Date: Sep 2007 Location: California iTrader: (0)	um kinda low. you should be getting 3XX something hp/tq. i'd try another dyno facility. __________________ 08 BMW BSM 335i 6MT (Sports, Premium, NAV, PDC, AS, IPOD, HD Radio, Rear Sunshade, OEM Alarm) Angel iBright V3, Luminics Fog Bulb, Turbo Tuner, K&N Drop in Filter, Dinan Exhaust, Dinan Pedals, Vorsteiner CF Front Lip, and CF Rear Diffuser. Ordered:08/25/07 Started: 09/09/07 Finished: 09/14/07 On Ship: 09/15/07 Arrived: 10/08/07 Delivered: 10/10/07
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01-12-2008, 01:35 PM	#3
Alabama_Man Banned 0 Rep 68 Posts Drives: 2008 E60 M5, 2007 335i Join Date: Jan 2008 Location: Nob Hill, San Francisco CA iTrader: (0) Garage List 2007 335i [0.00] 2008 E60 M5 [0.00]	The 335i isn't meant to be a fast car, 296HP sounds about right for a stock car. I guess you could mod your car to give it more power but it wouldn't be anything drastic and would probably void your warranty.
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01-12-2008, 01:39 PM	#5
djrobroe Private First Class 7 Rep 177 Posts Drives: soon to b 335 Join Date: Nov 2007 Location: Miami, FL iTrader: (0)	read the post... he says he has an sstt.... your dyno numbers do seem off... they should be in the 300's.... i would say try another dyno facility as well...
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01-12-2008, 03:34 PM	#8
E90ice Banned 211 Rep 2,002 Posts Drives: 2008 335xi Coupe Join Date: May 2006 Location: WA iTrader: (0)	looks about right to me. I mean, Turbo Tuner provides about 30whp. Considering that most 335 dyno around 270whp...almost 300whp sounds about right. __________________
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01-13-2008, 09:44 AM	#9
5soko Brigadier General 342 Rep 4,633 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	was this a dynojet with SAE or STD correction??.VBB your def right, the baseline is the real story here, if ur in the 260's stock this def makes sense. but could be the dyno and the correction method.
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01-13-2008, 10:11 AM	#11
Sniz Lieutenant General 673 Rep 10,587 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	For comparison, my car made 286.xwhp stock on a dynojet __________________
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01-13-2008, 10:16 AM	#12
5soko Brigadier General 342 Rep 4,633 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	tho i see ur intentions^, if it wasnt on the same dyno on the same day its hard to compare the peak numbers. i once went to a dyno where my car suppose to make about 200WHP and it only made 165WHP.
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01-13-2008, 10:45 AM	#13
Sniz Lieutenant General 673 Rep 10,587 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	you should go back to that same dyno and retest w/ the bypass plugs in to put down your baseline run. Its not difficult. I can take my bypass plugs in or out in under 2 minutes. Its the only way you'll know really how much extra power your upgrades have given you. __________________
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01-13-2008, 11:15 AM	#14
RMRC Lieutenant 20 Rep 475 Posts Drives: 2011 E90 335d Join Date: Nov 2006 Location: West iTrader: (0)	Regarding HP, I think your car is putting down right about what it should with the SSTT. But your TQ number is really low. Remember SAE will show lower than STD (about 2-2.5% lower I think). With this in mind here are my STD Turbo Tuner dynos from when I had it installed and on 91 octane. 296.1 (1.025) = ~304 so right in line. Don't know what's going on with that TQ though.
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01-13-2008, 11:51 AM	#15
SCCAForums.com Captain 40 Rep 726 Posts Drives: Race Cars Join Date: Dec 2007 Location: Chandler, AZ iTrader: (2)	SYD are not always higher. If the dyno is below sea level STD would be lower than SAE. Your quarter mile is good, it is the dyno. But your TQ does seem off, but without having a baseline tough to say where it is from. As well as what rpm did the operator start at. Peace. __________________ 2010 ZR1 3ZR Wht/Blk 10.7 @ 132 2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117 2010 Nissan GT-R 10.8 @ 129 (Sold) 2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126 2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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01-13-2008, 08:14 PM	#16
SCCAForums.com Captain 40 Rep 726 Posts Drives: Race Cars Join Date: Dec 2007 Location: Chandler, AZ iTrader: (2)	vbb... that is EXACTLY it... that makes a LOT more Sense!!! Alot of times... places don't know how to dyno these cars... with the kick down and everything... it can be tricky... when I go to the dyno... they know, to let me do the pulls! Good Stuff... later, Dave __________________ 2010 ZR1 3ZR Wht/Blk 10.7 @ 132 2011 C63 AMG P31 Car Blk/Blk 11.8 @ 117 2010 Nissan GT-R 10.8 @ 129 (Sold) 2008 Lexus IS-F (Sold) 12.5 @ 113 / 2008 Shelby GT500 (Sold) 11.3 @ 126 2008 e90 M3 6MT 12.8 @ 111 (Sold) / 2006 e60 M5 12.4 @ 114 (Sold)
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01-14-2008, 12:28 PM	#17
5soko Brigadier General 342 Rep 4,633 Posts Drives: M5 Join Date: Aug 2007 Location: Brooklyn, NY iTrader: (4)	lol that sucks. next time do the dyno yourself if u can. take all traction off ,just put it in 4th and push down until u feel the kickdown and just hold it there, dont pass the kickdown of course or it will drop u a gear. btw how many runs did u do. im sure on another run or two, u could have got a easy 300+WHP and about 320+Wftlb
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