Subject	umm..I think if the program is tuned for higher octane..
Posted by	ForceFedTT (SoCal) on October 05, 2010 at 5:52 AM
	This message has been viewed 243 times.
In Reply To	Selin and ashspecz ecu? posted by supersh0cker on October 05, 2010 at 05:05 AM
Message	It allows for a more aggressive tune because it doesn't burn as hot as the lower octane burns. It's got something to do w/ the EGTs that result from the combustion, higher AFRs, etc. Not the best explanation, I know, but basically more octane means more HP. That's why the dyno tunes on race fuel yield more HP than the runs on pump fuel (e.g., 91 octane). Someone else here can give a more scientific explanation, or you could always search. Lots of info on this topic in the archives. Get a dual pop tune and use the switch on the Selin. This way you can meter twice the air if you ever decide to build insane HP :)
Follow Ups	Selin and ashspecz ecu? - supersh0cker 05:05:44 10/05/10 umm..I think if the program is tuned for higher octane.. - ForceFedTT (SoCal) 05:52:26 10/05/10 on the right track - FuerGrissa 06:29:15 10/05/10 Cliffs notes: - ttzcadet 10:49:46 10/05/10 If you're going to run 91, then get a 91 tune, but... - ZXoltan 06:01:15 10/05/10 EXACTLY why I run with ~3 gal of 100oct/tank ;-) damn CA! (n/m) - CoHPhasor 02:56:05 10/07/10 Call Specialty Z - Alan(MD/NJ) 06:52:20 10/05/10 Our ECUs will work just fine with the Selin unit. (n/m) - Ash's Z 08:44:24 10/05/10 I'm no ash fanboy, but thats just misinformation - Antihero 09:06:34 10/05/10 Do what (n/m) - John@Z1 11:01:04 10/05/10 ? (n/m) - ZiNnYc 11:13:19 10/05/10 These two products are fully compatible (n/m) - Jim (Selin Design) 12:14:02 10/05/10 Not sure what you might have mis-understood? - Greg D. (Specialty-Z) 12:32:17 10/05/10 Dual True (n/m) - Ashman2k2 12:42:53 10/05/10 Interesting points, Greg. Ash was tuning my car recently - Mr.Stacy 15:31:34 10/05/10 ok... - supersh0cker 16:19:51 10/05/10 If that is what you would like to do. (n/m) - John@Z1 17:28:24 10/05/10 i don't know if I would say best - Adam (NoVA) 18:07:36 10/05/10 Why? (n/m) - njz 20:41:23 10/05/10 if you have the cash --get Nistune -- (n/m) - The Devils Z 07:16:38 10/05/10 If you get the AshSPEC - Jehannum 07:50:02 10/05/10 Selin and JWT/SpecialtyZ/Stillen ecu, the end. (n/m) - Halo TTZ 07:58:49 10/05/10 How much boost? - spicyZ 08:24:15 10/05/10 ANSWER! - ubermiach 08:45:38 10/05/10 Is it better to get the dual program ecu - tuckz32 09:05:57 10/05/10 I was told that optimal would be to have the dual program - HighPsi (NorCal) 09:37:56 10/05/10 Interested to know who told you that. Before the Selin - zgene4 09:45:13 10/05/10 I think it occured in a conversation on our way to lunch - HighPsi (NorCal) 10:05:10 10/05/10 answers. - Antihero 10:07:46 10/05/10 wurd^^^^^^^ - ubermiach 10:35:21 10/05/10 Great answer, thank you antihero - tuckz32 16:24:11 10/05/10 Under 500HP the single pop program will offer a more ideal - Greg D. (Specialty-Z) 17:04:19 10/05/10 lol @ buying power upgrades and wanting cheap gas - Antihero 09:07:44 10/05/10 ... like here, unfortunately - vorpalZ 09:42:57 10/05/10 you know we have 100 down the block, right? - ZiNnYc 10:44:40 10/05/10 lol.. don't tempt me. - Antihero 12:36:44 10/05/10 I blend 1/3 e85 with 2/3 91 to get 96 octane. - not4resaleZ 10:33:41 10/05/10 Note, your car will need about 10% more fuel capacity. (n/m) - not4resaleZ 10:48:35 10/05/10 How long have you been doing this? - bartz32tt 12:45:07 10/05/10 I need to get it on a dyno to insure the fuel trim is - not4resaleZ 16:39:56 10/05/10 Not good. E85's stoich AFR is 6.5:1 - sparkie 13:32:26 10/05/10 Fuel trim adjusts it like a clogged fuel injector. (n/m) - not4resaleZ 16:33:12 10/05/10 What fuel trim R U talking about? You have OEM ECU. (n/m) - sparkie 17:36:11 10/05/10 OEM ecu uses O2 sensor to adjust the long term fuel trim. - not4resaleZ 18:23:45 10/05/10 Ztuner can hook you up as well. (n/m) - ZiNnYc 10:46:31 10/05/10 best set up and tune would be? - supersh0cker 16:20:45 10/05/10 Best would be to have it dyno tuned. (n/m) - John@Z1 17:29:22 10/05/10 contact Ztuner and set up an appt - ZiNnYc 03:38:25 10/06/10 2nded on if you can drive to Harry, do it. (n/m) - Antihero 09:09:31 10/06/10 Anyone recommend a good dynotune shop in toronto? (n/m) - Rogy 23:06:54 10/06/10
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