Subject	The race fuel map should not spool up any faster....
Posted by	Greg D. (Specialty-Z) on February 27, 2013 at 4:01 PM
	This message has been viewed 513 times.
In Reply To	That is some useful info on the wastegate/turbos posted by spdrmn15 on February 27, 2013 at 03:46 PM
Message	The proper timing that offers the best spool up, will not cause knock on pump fuel, the spool up will be better with less timing (to a point). A race fuel program should only have more timing in the higher RPM high load cells. I am saying the stock ECU program likely has less low end timing than the Haltech program based on your charts. The spool up should be the same with the same boost controller setting with either fuel when properly tuned. As the boost controller gets turned up, the wastegate is held closed longer, allowing better low end with higher boost controller settings. If anything the low end should have been better on the Haltech program as the boost was set 2 PSI higher.
Follow Ups	My recent tuning trip to Ztuner. - spdrmn15 11:48:37 02/27/13 nice - aliaZ 12:26:07 02/27/13 What was the fix to the stumble at 5k rpm's? (n/m) - Evan_Wright (Ca) 12:26:51 02/27/13 I think it was the CAS. I changed that out just - spdrmn15 12:55:08 02/27/13 Thanks. - Evan_Wright (Ca) 13:04:38 02/27/13 Didn't consider their PG-13 exhaust? - LJZTT 12:30:16 02/27/13 Material would have been inappropriate. - SeanK (StL) 12:56:24 02/27/13 Solid collection of parts you've got there - bartz32tt 12:53:10 02/27/13 Stout numbers, glad everything worked out and thanks - John@Z1 12:55:39 02/27/13 Is his x pipe going to be on sale on your site soon? - michaell32 (FL) 16:26:17 02/27/13 Harry already bought the x-pipe and muffler section - spdrmn15 17:52:10 02/27/13 I already have a Specialty Z back half sitting in my garage. - michaell32 (FL) 18:05:49 02/27/13 I would like to know, which sounded better!?! X or H, thanks (n/m) - ZinnZ32 13:44:21 02/27/13 I can honestly say I didn't notice a difference - spdrmn15 14:33:36 02/27/13 Good to know! I understand it's subjective too, but thanks! (n/m) - ZinnZ32 14:43:46 02/27/13 Nice work. What datalogger is that? - DarkZide 13:50:33 02/27/13 It's the Computech Datamaxx. - spdrmn15 14:36:36 02/27/13 DIBS on a ride!!! (n/m) - AHos(Chicago) 14:09:53 02/27/13 A couple comments .......... - Greg D. (Specialty-Z) 15:08:29 02/27/13 That is some useful info on the wastegate/turbos - spdrmn15 15:46:32 02/27/13 The race fuel map should not spool up any faster.... - Greg D. (Specialty-Z) 16:01:43 02/27/13 i looked at the timing maps on both tunes and your 180 deg - ztunerz 16:22:37 02/27/13 Without seeing the timing map.......... - Greg D. (Specialty-Z) 16:37:03 02/27/13 Agreed - so whats the point of guessing anyway ? FYI - ztunerz 17:31:35 02/27/13 I detect some passive aggressiveness. Wait wait...no, it - evan_aggie 18:03:12 02/27/13 You might want to call me..... (n/m) - Greg D. (Specialty-Z) 20:37:20 02/27/13 I'm confused by the WG comment. Some turbos are good for - evan_aggie 17:58:45 02/27/13 Re: I'm confused by the WG comment. Some turbos are good for - Greg D. (Specialty-Z) 18:46:13 02/27/13 is the PG noticeably louder than your old cat back? - zgene4 15:42:26 02/27/13 I'm pretty sure the water got in because I didn't - spdrmn15 15:48:21 02/27/13 Think you'll have issues at Autobahn? Don't they have a - zgene4 15:50:05 02/27/13 I really can't remember if they do or don't. - spdrmn15 17:05:29 02/27/13 Cool. When is the first track day? (n/m) - zgene4 19:25:58 02/27/13 April 20-21 at Autobahn. At least that's the plan - spdrmn15 09:10:05 02/28/13 it was 50 % water :) (n/m) - ztunerz 16:23:40 02/27/13 lol (n/m) - Ahmed (NoVA) 18:13:16 02/27/13 Very nice numbers...any reason why you switched to the PG? (n/m) - RobZ32 16:07:44 02/27/13 It sounds awesome, and should flow better - spdrmn15 17:04:21 02/27/13 We have removed our 3 inch muffler sections, both - Greg D. (Specialty-Z) 19:19:27 02/28/13 very nice Eric (n/m) - Ahmed (NoVA) 18:13:52 02/27/13 Sounds like fun! - Only1Z 21:41:38 02/27/13 Since Harry could have "driven" your car on the dyno - spdrmn15 09:08:20 02/28/13
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