Subject	Different model dyno's can have different readings.....
Posted by	Greg D. (Specialty-Z) on January 19, 2011 at 11:34 AM
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In Reply To	Re: dyno testing posted by arrowenterprises on January 19, 2011 at 08:36 AM
Message	Most of the same model dyno's read similar if the equipment is in good shape. Some dyno's can read lower if the dyno brake drags ect.... The dyno is mostly a tuning tool and not a end all number. It is designed to tune and let you know if your going in the right direction when testing. Fuel can change things a lot too...... Are you sure you used the same fuel? Some people think Q-16 and C-16 are similar and they are not. Q-16 is oxygenated and burns fast allowing more fuel to burn and C-16 is not and burns really slow. Do you have air fuel ratio charts for both dyno's? It could be different dyno's, different fuels, or the car could have issues. If we see the charts we can tell you more. Do you know the type of dyno used?
Follow Ups	Re: dyno testing - arrowenterprises 08:36:21 01/19/11 now I can see it.. - Cap927(Boston) 08:38:08 01/19/11 Both are correct. Dynos vary from shop to shop, even with - BigTDogg (MA) 08:48:11 01/19/11 Whoops, that red X is <img src= - BigTDogg (MA) 08:53:03 01/19/11 Re: wheel offset - arrowenterprises 10:14:12 01/19/11 No worries, it's on the inside of the wheels somewhere - BigTDogg (MA) 10:23:23 01/19/11 Probably +34 and +42. - Evan(CA) 12:13:49 01/19/11 Just curious, what were the two different numbers? (n/m) - outkaZTT 09:09:23 01/19/11 Re: numbers - arrowenterprises 10:15:37 01/19/11 How much lower are you talking about? And adding to Tony's - Dave N 09:37:45 01/19/11 True, but to some degree, the SAE correction factor - BigTDogg (MA) 10:02:25 01/19/11 You're right, I didn't think about the correction factor. (n/m) - Dave N 11:11:47 01/19/11 If you figure a 20% increase in hp with 80% efficency - not4resaleZ 14:04:54 01/19/11 useless without dyno curves from both dyno (n/m) - RevTech 09:40:31 01/19/11 jas0n3485's old Z? - EricTTZ 09:54:02 01/19/11 Re: jas0n3485's old Z? - arrowenterprises 10:17:38 01/19/11 Here are those exact same dyno files in SAE correction - Greg D. (Specialty-Z) 11:55:49 01/19/11 In this case the difference between SAE and STD was 1.5% (n/m) - Greg D. (Specialty-Z) 12:01:41 01/19/11 SpecialtyZ uses STD which improves numbers by ~5% - ZCulture 10:32:19 01/19/11 No where near a 5% change from SAE to STD - Greg D. (Specialty-Z) 12:08:18 01/19/11 You may be right but my impression is ~4% - ZCulture 12:55:42 01/19/11 Do I hear a ~3%? (n/m) - dpjax 15:19:08 01/19/11 LOL (n/m) - Vanos 15:41:11 01/19/11 lol (n/m) - KongZTT GT28RS MD 17:00:11 01/19/11 what's an STD? (n/m) - fuzzymonkey 12:27:08 01/19/11 STD = Standard (International Scientific Standard) - Greg D. (Specialty-Z) 12:44:55 01/19/11 Its what your SN can get if u arent safe (n/m) - KongZTT GT28RS MD 17:00:58 01/19/11 lol I was waiting for someone to throw a joke out there baha (n/m) - Drk93TT 19:26:15 01/19/11 There were others, but they were wisely removed :-) (n/m) - BigTDogg (MA) 08:50:56 01/20/11 Different model dyno's can have different readings..... - Greg D. (Specialty-Z) 11:34:30 01/19/11
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