Subject	His set up did not require higher pressure to reach
Posted by	Greg D. (Specialty-Z) on June 26, 2012 at 11:17 PM
	This message has been viewed 354 times.
In Reply To	Awesome results but why did they stop at 19#'s? (n/m) posted by The Hawk on June 26, 2012 at 08:51 PM
Message	the maximum flow of his turbos. The turbos the OP is running are the JWT 530 (Garrett GT2554R), JWT rates the pair of turbos on a Z32 engine at 530 motor HP. Garrett rates the flow capability in the range of 170HP to 270HP each. Pressure is a measurement of resistance, as you remove restrictions from the system, the turbo can flow more air without needing to create pressure, if you move the air at a lower pressure, you will have less heat that makes more power. Higher octane fuel allows increased ignition timing that also lowers pressure. The OP is making more power at the wheels than the turbo is rated to flow at the engine.
Follow Ups	Adjusting Cam Timing - Results. - MixManMash 15:59:23 06/26/12 Note: The above results are on JWT 500 cams. (n/m) - MixManMash 16:00:00 06/26/12 dumb Q: how do you switch out gas to 3 different types? - evan_aggie(ATX) 16:16:33 06/26/12 Pump it out by turning on pump, dump new into tank. (n/m) - Woody75 (Denver) 16:19:18 06/26/12 How do you remove what left in the rail tho? - Red Hawk (CO) 16:20:50 06/26/12 Yep, as soon as the car starts the fuel will cycle. (n/m) - Woody75 (Denver) 16:22:49 06/26/12 And then? And then? Seriously though, pump on how? - evan_aggie(ATX) 17:10:23 06/26/12 Use Nissan Datascan. Force the pump on under active test. (n/m) - MixManMash 17:17:52 06/26/12 Yep yep. (n/m) - Woody75 (Denver) 17:24:40 06/26/12 Heh. Dyno w/ VP fuels >>>> Dyno w/ VP fuels + Consult (n/m) - evan_aggie(ATX) 18:03:24 06/26/12 If you have nasty stuff at the bottom of your tank..... - Greg D. (Specialty-Z) 23:33:55 06/26/12 What's the solution there... drain from the bottom? (n/m) - Inzane 00:10:29 06/27/12 yes (n/m) - Piranha 03:04:45 06/27/12 there is about 3 gallons in the tank after the pump stops (n/m) - ztunerz 22:50:04 06/26/12 In my experience, allowing the pump to suck the tank down - Greg D. (Specialty-Z) 23:30:21 06/26/12 interesting. i drained my 2 seater - both sides and got - ztunerz 01:19:54 06/27/12 i have another 2 seater i have to drain. Will check that too (n/m) - ztunerz 01:26:08 06/27/12 2+2 fuel tanks don't have drain plugs, only the 2 seaters do (n/m) - Bernie (NoVA) 01:22:32 06/29/12 Do you have charts just showing the cam gear timing diff? - Woody75 (Denver) 16:18:21 06/26/12 I just created below: - MixManMash 17:28:53 06/26/12 Looks like there is a lot to be gained by adjusting those - Evan_Wright (Ca) 16:23:53 06/26/12 Yep... thats the real question - ZXoltan 16:49:50 06/26/12 See below - stock cams are fairly close. (n/m) - MixManMash 17:25:31 06/26/12 Dumb question, but would these help at all with stock cams? (n/m) - fuzzymonkey 16:50:22 06/26/12 Not really. The stock cams are fairly close. The only - MixManMash 17:18:51 06/26/12 Re: Not really. The stock cams are fairly close. The only - megaDan 18:07:15 06/26/12 Yes, but using a thicker head gaskets presents a different - MixManMash 18:41:53 06/26/12 I have no tuning experience but I've read that stock cams - Evan_Wright (Ca) 18:18:15 06/26/12 That would be a great question for SZ. I would be - MixManMash 19:01:04 06/26/12 Having a smooth idle and such is all in the tune. - samsung-Z [Houston] 19:18:43 06/26/12 I can tell you his idle was as good as stock - ConVerTT 22:49:46 06/26/12 Nice results. The 94 oct graph looks great. (n/m) - Boosted1 18:58:28 06/26/12 Awesome results but why did they stop at 19#'s? (n/m) - The Hawk 20:51:12 06/26/12 I have a high compression setup and that's all the turbo's - MixManMash 21:32:06 06/26/12 Well and that was one of the neat things - ConVerTT 22:53:50 06/26/12 His set up did not require higher pressure to reach - Greg D. (Specialty-Z) 23:17:34 06/26/12 Nice. I read SZ's blog the other day and when I saw - michaell32 22:59:01 06/26/12 Congrats, You did a nice job putting it together! (n/m) - Greg D. (Specialty-Z) 23:10:28 06/26/12 Thanks Greg! (n/m) - MixManMash 00:06:13 06/27/12 Congrats! It was nice to be able to witness your big finale (n/m) - Inzane 00:11:06 06/27/12 Thanks Jason! I'll have to take you for a rip. It may stir - MixManMash 00:17:24 06/27/12 Oh, and no finale here! Maybe in a few years some GTX28s - MixManMash 00:19:06 06/27/12 You stole my torque!! Sigh, adjustible cam gears on the list (n/m) - vorpalZ 00:57:34 06/27/12 Lol. Add some 500 cams to that list :-) (n/m) - MixManMash 08:56:03 06/27/12 Add another player too. Group buy? (n/m) - ConVerTT 09:36:40 06/27/12 I'd totally be in for a group buy (n/m) - Red Hawk (CO) 11:30:25 06/27/12 Amazing results with 530 turbos :) (n/m) - ztunerz 01:21:40 06/27/12 Results comparable to the tune you did on Jeff's car, Harry? - ZXoltan 06:44:48 06/27/12 yes but it would be best to overlay the graphs and - ztunerz 13:52:08 06/27/12 Let me know if you want the runfiles. I can email them. (n/m) - MixManMash 15:54:49 06/27/12 I'd be interested in seeing the overlays (n/m) - ZXoltan 16:58:02 06/27/12 2nd please (n/m) - ConVerTT 19:43:07 06/27/12 e-mail ztuner@ztuner.com (n/m) - ztunerz 21:20:43 06/28/12 Sending this am. (n/m) - MixManMash 08:25:18 06/29/12 whereas, I went the other way: - vorpalZ 11:48:05 06/27/12
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