Subject	You need to check your ignition timing.
Posted by	AshsZ (Fab Whore, Ph.D) on June 20, 2002 at 7:31 AM
	This message has been viewed 49 times.
In Reply To	Spark plug choice and dyno results... posted by robbyg on June 19, 2002 at 05:30 PM
Message	: Hey guys, : I got my Z dyno tuned earlier this year, and pulled rather disappointing numbers. Mod wise, I'm basically Stillen stage 9 (just for reference), without the intercoolers. Becuase I have nitrous, instead of the platnium plugs, I used NGK ZFR7F-11 copper plugs, gapped to .035. Without nitrous, pulled 303HP, 336 ft/lbs of torque. Really, really disappointing because many Stage 3 TT Zs do better. : Tomorrow I plan on changing my oil (Mobil 1 10w30) and filter, and thought I would change my copper plugs while I was working on the Z. Thinking to go one step hotter on the plugs, but still stay copper. What do you think? What are the one step warmer plugs than the NGK ZFR7F-11s? : Thanks! : Rob [ ashleypowers.com ] [ agpowers@bellsouth.net ] When pigs dance, you better get it on video...
Follow Ups	Spark plug choice and dyno results... - robbyg 17:30:49 06/19/02 at what PSI was this? - Carlos Ramirez 18:15:14 06/19/02 Approx 14.5psi on stock turbos. (n/m) - robbyg 19:01:41 06/19/02 Spark plug heat range isn't going to change your dyno result (n/m) - MikeH(Twin GT35BB Incon Z) 18:36:47 06/19/02 2nd, but colder will allow you to boost more w/out detnation (n/m) - dragonballz 18:40:28 06/19/02 I agree, but think that my choice of spark plugs might... - robbyg 19:01:21 06/19/02 put the stock one sback in , I doubt you will see a much - MikeH(Twin GT35BB Incon Z) 19:04:06 06/19/02 Gonna stay away from platnium because of nitrous. - robbyg 19:05:17 06/19/02 Not a piston, burnt a valve. :) (n/m) - Cherry3z 19:38:11 06/19/02 Spark plugs isn't your problem. I run those exact - MikeH(Twin GT35BB Incon Z) 18:59:59 06/19/02 How often do you change them? (n/m) - robbyg 19:02:00 06/19/02 Oh yeah, how about gap? (n/m) - robbyg 19:02:14 06/19/02 Gap is fine, I haven't changed mine out yet only have - MikeH(Twin GT35BB Incon Z) 19:08:08 06/19/02 those are some TERRIBLE NUMBERS!!! something is WRONG man!!! (n/m) - Pure-Evil 19:26:33 06/19/02 I would recommend the 6 heat range without nitrous - Chip(GinnMotorsports) 20:06:59 06/19/02 You need to check your ignition timing. - AshsZ (Fab Whore, Ph.D) 07:31:27 06/20/02 I set it to about 14 degrees to be safe for the nitrous. (n/m) - robbyg 15:04:27 06/20/02 With nitrous you need to retard the timing more. (n/m) - AshsZ (Fab Whore, Ph.D) 00:51:53 06/21/02
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