Dyno Comparisons

RPIpower · 03-03-2007, 02:24 AM

Ive been asked enough times so I thought some of this info would help. Not all dynos use the same formulas to get hp/tq numbers. This info might give you an idea of how dynos can give different numbers.

http://www.turbomagazine.com/tech/03...ine_dyno_dash/

Some are more conservative with their numbers. We get a bunch of guys that ask why their cars arent making the same amount of power as they did when they dynoed elsewhere. Remember its not about the numbers, its about the improvements. If you dyno on one dyno, test and tune on that same dyno.

happy tuning.

YellowSky · 03-03-2007, 11:22 AM

Very good and true info .... thanks alot!!

MidniteBlues · 03-03-2007, 11:51 AM

Interesting article, thanks for sharing. Goes to show that when having your car dyno do it at the same facility if possible. If at a different facility, establish a baseline before you mod--makes sense. Real surprised with the results of reporting of the different power outputs with the same car with no mods--

from a high of 265 to a low 228 I believe it was--Thats alot of difference--

BlueSkyRL · 03-03-2007, 12:19 PM

Excellent article. I wonder if they all were calibrated in the same way and method. You would think that they should be closer than they are. These things are suppose to be accurate. Now I see they are only good for improvement gains and NOT true HP and TQ.

gwader · 03-03-2007, 01:41 PM

WOW! Thanks for sharing.
Greg

YellowSky · 03-03-2007, 04:13 PM

so lets get some people with the magna flow mufflers to dyno there cars on a machine NOT owned by the company since there Xaust is already out.. and im sure people will dyno there cars once RPI gets theres shipped

brentil · 03-03-2007, 05:03 PM

Here's my before and after of my GXP with the new SOLO-Performance Race exhaust.

03-03-2007, 02:24 AM	#1 (permalink)
RPIpower Supporting Vendor Join Date: Nov 2006 Posts: 1,777 My Photos: (0)	Dyno Comparisons Ive been asked enough times so I thought some of this info would help. Not all dynos use the same formulas to get hp/tq numbers. This info might give you an idea of how dynos can give different numbers. http://www.turbomagazine.com/tech/03...ine_dyno_dash/ Some are more conservative with their numbers. We get a bunch of guys that ask why their cars arent making the same amount of power as they did when they dynoed elsewhere. Remember its not about the numbers, its about the improvements. If you dyno on one dyno, test and tune on that same dyno. happy tuning. __________________ Eloy "Brutus" #001 RPi 2.4GTS Race Precision, Inc. 7029 Marcelle Street Paramount, CA 90723 562-630-5966 www.raceprecision.com

03-03-2007, 11:22 AM	#2 (permalink)
YellowSky First 2000 Sr. Member Join Date: Apr 2006 Location: Near the Red line and the Keys Posts: 1,298 My Photos: (0)	Very good and true info .... thanks alot!! __________________ Opel GT conversion ONYX Black *ADD ON* RACE PRECISION EVERYTHING opel badges and lights Flurecent halos SOL black rims FIREFIGHTER Tag "SKYYY"

03-03-2007, 11:51 AM	#3 (permalink)
MidniteBlues Senior Member Join Date: Aug 2006 Location: Florida Posts: 3,549 My Photos: (0)	Interesting article, thanks for sharing. Goes to show that when having your car dyno do it at the same facility if possible. If at a different facility, establish a baseline before you mod--makes sense. Real surprised with the results of reporting of the different power outputs with the same car with no mods-- from a high of 265 to a low 228 I believe it was--Thats alot of difference-- __________________ 2.4L Midnight Blue, Premium Trim Package, Automatic, Monsoon Pre Audio 1-CD, Std Rear. GMPP CAI, 3M Clear Bra, Splash Guards, Black Top, Fiam Frwy Blastr 2-horn Opel Ant - WR V2

03-03-2007, 04:13 PM	#6 (permalink)
YellowSky First 2000 Sr. Member Join Date: Apr 2006 Location: Near the Red line and the Keys Posts: 1,298 My Photos: (0)	so lets get some people with the magna flow mufflers to dyno there cars on a machine NOT owned by the company since there Xaust is already out.. and im sure people will dyno there cars once RPI gets theres shipped __________________ Opel GT conversion ONYX Black *ADD ON* RACE PRECISION EVERYTHING opel badges and lights Flurecent halos SOL black rims FIREFIGHTER Tag "SKYYY"

03-03-2007, 05:03 PM	#7 (permalink)
brentil Administrator Join Date: Jun 2004 Location: FL Posts: 2,349 My Photos: (90)	Here's my before and after of my GXP with the new SOLO-Performance Race exhaust. Attached Thumbnails __________________ 2006 Solstice, Mysterious [sold] - Born Sept 8th, 2005 2007 Solstice GXP, Mean - Born Nov 17th, 2006

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03-03-2007, 12:19 PM	#4 (permalink)
BlueSkyRL First 2000 Sr. Member Join Date: Jun 2006 Location: Up North! Posts: 974 My Photos: (0)	Excellent article. I wonder if they all were calibrated in the same way and method. You would think that they should be closer than they are. These things are suppose to be accurate. Now I see they are only good for improvement gains and NOT true HP and TQ.

03-03-2007, 01:41 PM	#5 (permalink)
gwader First 2000 Sr. Member Join Date: Jun 2006 Location: Torrance,CA Posts: 84 My Photos: (0)	WOW! Thanks for sharing. Greg

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