Subject	The type of dyno does matter, on a DynoJet you need
Posted by	HighPsi (NorCal) on May 12, 2012 at 11:08 PM
	This message has been viewed 240 times.
In Reply To	Nope, I assure you I am correct. The ratio of the trans has posted by Jc (Houston) on May 12, 2012 at 10:45 PM
Message	to be as close to a 1:1 gear ratio as Dynojet mathematically creates a horsepower number based on mass (which is the known weight of the rollers) and acceleration (how fast the car is accelerating the known weight). F=mass From force (F), we can calculate horsepower. Dyno the car in 2nd gear, and acceleration (a) goes way up, causing force (F) to go way up. So by dynoing the car in the gear closest to the 1:1 gear ratio, we eliminate any acceleration advantage or disadvantage caused by the transmission, which gives us unskewed whp numbers. On other dynos that use load cells the gear does not matter, so you are correct in regards to this particular dyno.
Follow Ups	dyno results - sonazty 18:10:52 05/12/12 I'm assuming your profile is incomplete? (n/m) - Evan(CA) 18:27:48 05/12/12 only thing missing is leader gears. (n/m) - sonazty 18:29:07 05/12/12 I'd say that dyno reads incredibly high then. (n/m) - Evan(CA) 18:36:43 05/12/12 Re: I'd say that dyno reads incredibly high then. - sonazty 18:40:04 05/12/12 What kind of dyno was it? Did you make the pull in 4th? - Evan(CA) 18:44:16 05/12/12 dynacom - sonazty 18:46:49 05/12/12 Does not matter if its 3rd,4th or 5th gear. Will stil read - Jc (Houston) 19:27:07 05/12/12 Wrong. A lower gear will skew results, a dyno must be - HighPsi (NorCal) 20:59:27 05/12/12 Nope, I assure you I am correct. The ratio of the trans has - Jc (Houston) 22:45:05 05/12/12 The type of dyno does matter, on a DynoJet you need - HighPsi (NorCal) 23:08:43 05/12/12 Common misconception... - ttzcadet 00:34:24 05/13/12 That is incorrect for a dynocom. Dynocom relies on - ztunerz 10:05:03 05/13/12 I stand corrected - ttzcadet 12:28:52 05/13/12 Also incorrect. Dynojet will show lower power in lower gears - ztunerz 10:08:28 05/13/12 400whp is a lot of work for stock turbos on your mods - zgene4 19:51:36 05/12/12 i'm failing to understand - sonazty 19:59:04 05/12/12 Evan also had complete breather mods. Nobody is - HighPsi (NorCal) 21:01:48 05/12/12 he was also at 15psi!!! - sonazty 21:31:58 05/12/12 Not sure why you are getting so defensive, once again - HighPsi (NorCal) 23:21:43 05/12/12 sorry for getting defensive - sonazty 23:42:05 05/12/12 I appreicate the dyno and fully believe that you laid down - HighPsi (NorCal) 23:56:28 05/12/12 nah, don't overreact, I'm guessing they think the machine is - LJZTT 17:10:38 05/13/12 i'm confused on where this is going (n/m) - sonazty 17:39:22 05/14/12 Looks like you have a really health motor to me (n/m) - toykoz32 20:15:15 05/12/12 ^^wow, thank you - sonazty 20:19:32 05/12/12 It's not hate,it's just higher than the expected range - samsung-Z [Houston] 20:47:57 05/12/12 No one is hating. Your numbers are high for your mods is - Evan(CA) 21:07:09 05/12/12 can't boost higher than 16psi? - sonazty 21:27:57 05/12/12 I don't think you should. - Evan(CA) 21:50:15 05/12/12 it didn't detonate - sonazty 21:55:32 05/12/12 Not sure what your elevation has to do with you running rich (n/m) - Jc (Houston) 23:08:43 05/12/12 from what everyone at the dyno told me - sonazty 23:21:22 05/12/12 True with carbs that have fixed jets, EFI is suppose to - Greg D. (Specialty-Z) 13:56:15 05/13/12 Not that Greg needs support in his opinions, but he's - Red Hawk (CO) 20:15:22 05/13/12 either way, good numbers and great looking z ;) (n/m) - Devin300zx 20:37:50 05/12/12 All this on a single pop? - FairladyProject93 20:40:48 05/12/12 those are definately on the "to do list" - sonazty 20:45:07 05/12/12 nicee..on what octane was the dyno btw? (n/m) - FairladyProject93 21:27:51 05/12/12 91 octane (n/m) - sonazty 21:29:21 05/12/12 Must be nice! (n/m) - Evan_Wright (Ca) 21:52:55 05/12/12 Congrats on your results. Car looks good. I had similar - Boosted1 08:57:15 05/13/12 thanks, i'm happy with the numbers - sonazty 09:47:33 05/13/12 Dynocoms are easy to manipulate. Those numbers are too high (n/m) - ztunerz 10:02:08 05/13/12 i guessed i'm confused - sonazty 10:28:56 05/13/12 Look up the dynos on Specialty Z's blog. - michaell32 10:59:25 05/13/12 dyno numbers - sonazty 11:08:00 05/13/12 370 to 380 is close to me. - michaell32 11:48:40 05/13/12 Your car looks great. You can put all the negative comments - bbug 11:38:40 05/13/12 that's what i was thinking - sonazty 11:48:08 05/13/12 Slicks aren't necessary. Your trap wont change much. (n/m) - bbug 11:59:55 05/13/12 i thought if you spend less time spinning tires out - sonazty 12:04:36 05/13/12 That dyno reads real high. - Only1Z 12:39:24 05/13/12 going to dyno again - sonazty 12:47:35 05/13/12 +1 - samsung-Z [Houston] 13:20:13 05/13/12 Make sure to post the AFR and boost graphs. - Evan(CA) 15:41:14 05/13/12 yes i did say the dyno might be reading a little high - sonazty 15:49:33 05/13/12 I really want to see your AFR and boost graphs. - Evan(CA) 16:20:06 05/13/12 no afr or boost graphs with this dyno - sonazty 16:27:37 05/13/12 My experience with altitude and correction factors.... - Greg D. (Specialty-Z) 13:47:18 05/13/12 Great post Greg. Can you educate him more on detonation. - michaell32 14:29:36 05/13/12 haha, you guys make me laugh - sonazty 15:12:44 05/13/12 Just listen to him. You can't hear all detonation. - The Hawk 16:52:29 05/13/12 i'll listen - sonazty 17:03:00 05/13/12 without a knock detector, you will not be able to - HighPsi (NorCal) 17:52:02 05/13/12 Exactly. Plus, Greg was telling me that if you can actually - Haasz32 21:02:50 05/13/12 What was the altitude there? (n/m) - Marshall 20:34:48 05/13/12 4800ft (n/m) - sonazty 20:36:23 05/13/12 Nice numbers, congrats. (n/m) - jschrauwen 01:52:57 05/14/12 Die in a fire. - BigTDogg (MA) 11:32:14 05/14/12 John you re a bitch, that was me that you were trying - HighPsi (NorCal) 13:13:54 05/14/12 i'm confused on where this is going - sonazty 17:41:14 05/14/12 Not you, just the troll that continually stirs the shit - HighPsi (NorCal) 00:21:25 05/15/12 John Schrauwen (jschrauwen). - rojoloco (VA Beach) 07:35:21 05/15/12
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