Subject	The exducer bore of the PE1420 is smaller than the GD
Posted by	AshsZ on January 20, 2004 at 1:03 AM
	This message has been viewed 76 times.
In Reply To	The opening in the turbo is much smaller than the exit posted by RegalZ on January 19, 2004 at 05:12 PM
Message	manifold pipes. They use an 8-blade turbine wheel in those turbos and an apparently small A/R on the housing, as well as a smaller exducer bore for the turbine wheel. They had to do this in order to get the gas velocity high enough for an 8blade wheel to spin the required RPM for the compressor wheel. Choking the area down increases velocity, but hurts at high RPM because you're trying to force so much gas through a small area. It is almost as if the turbo itself is the greater limiting factor and it is restricting the ability of the manifolds to really help. [ ashleypowers.com ] [ agpowers@bellsouth.net ] [ Zemulator Information Sheet ] [ Z1 Motorsports Website ] Enthusiasts soon understand each other. --W. Irving. Are you an enthusiast? If you are out to describe the truth, leave elegance to the tailor. Albert Einstein
Follow Ups	DYNO Day: Lorca Divale's Z1 built PE1420 powered TTZ. - AshsZ 00:24:32 01/19/04 Maybe make a single post? - SeedyROM (ZCON 2K4!) 00:27:41 01/19/04 JACKAL!!! :p (n/m) - Guapo 00:30:55 01/19/04 LOL, Less attention that way ( subliminal advertising ) :) (n/m) - ZBlacktt 00:40:32 01/19/04 If its not too bothersome, I wanted to keep them seperated - AshsZ 00:45:56 01/19/04 Hmmm... nice numbers I guess - degradated 00:47:28 01/19/04 I dont typically like to completely max out a turbo in psi - AshsZ 00:54:36 01/19/04 What was the timing advanced to? - degradated 01:02:49 01/19/04 I think with the 1420 turbos you have plenty of room - MikeH(Twin GT35BB Incon Z) 02:34:58 01/19/04 which FMIC? (n/m) - aliaZ 01:51:57 01/19/04 I am curious too, which FMIC? (n/m) - MikeH(Twin GT35BB Incon Z) 02:33:22 01/19/04 The one from Australia that looks like the Apollo! - jamcru 08:24:18 01/19/04 UAS FMIC, got me wondering if its a bottleneck :-/ (n/m) - RegalZ 11:15:27 01/19/04 It is bigger than the Apollo, and Ash has pulled close - Chip(GMS Racing) 11:36:46 01/19/04 You got any ideas then? (n/m) - RegalZ 13:41:29 01/19/04 How many miles in on your engine? - Chip(GMS Racing) 15:03:35 01/19/04 What was the timing advanced to on the pump gas - MikeH(Twin GT35BB Incon Z) 01:54:12 01/19/04 I dont remember off hand.. When I tune a car I'm not - AshsZ 02:01:24 01/19/04 Tim dynoed 534 @20 psi with his PE1420 turbos. Not - MikeH(Twin GT35BB Incon Z) 02:27:40 01/19/04 No he didn't. Read MY post. (n/m) - Woody75 (Denver) 08:34:11 01/19/04 I was off by one PSI and I said it was a spike? - colocomp (Denver) 11:07:11 01/19/04 Dude, Just let it go... - ni[X]it 11:12:15 01/19/04 House plant LOL good one (n/m) - MikeH(Twin GT35BB Incon Z) 11:51:04 01/19/04 Nixit you know what 5-4 gives you? (n/m) - MikeH(Twin GT35BB Incon Z) 12:00:06 01/19/04 your brain mass (ounces) - nixit 12:55:43 01/19/04 Re: your brain mass (ounces) - MikeH(Twin GT35BB Incon Z) 13:03:42 01/19/04 You mean when when you believe SAE dyno corrections - MikeH(Twin GT35BB Incon Z) 13:05:49 01/19/04 You are always right? Marshall got it correct. - MikeH(Twin GT35BB Incon Z) 13:35:10 01/19/04 you are so goddamn thick, that it's pointless. - nixit 13:44:14 01/19/04 You can't stand it because you pointed out incorrect - MikeH(Twin GT35BB Incon Z) 13:56:21 01/19/04 Your intelligience shows with your incorrect assumption - MikeH(Twin GT35BB Incon Z) 13:57:46 01/19/04 Don't talk smack about me giving invalid information when - MikeH(Twin GT35BB Incon Z) 14:03:03 01/19/04 I don't want to count a spike run. Not valid to me. - Woody75 (Denver) 11:27:00 01/19/04 Was he running stock recircs? - Woody75 (Denver) 09:05:39 01/19/04 Yes I was, still waiting in my Tial setup (n/m) - RegalZ 11:02:12 01/19/04 Good to know. I may try my old ones then for now. (n/m) - Woody75 (Denver) 11:28:43 01/19/04 I was hoping to see Gregs manifolds add alot to these dynos. - Woody75 (Denver) 09:44:18 01/19/04 We talked alot about that last night -->> - RegalZ 11:10:15 01/19/04 hmm, good info. - Woody75 (Denver) 12:14:12 01/19/04 It would be nice someone take a picture of the inlet - MikeH(Twin GT35BB Incon Z) 12:20:24 01/19/04 Look at your pic - Chip(GMS Racing) 12:30:29 01/19/04 I've posted pics of mine before. (hope this is what u want). - Woody75 (Denver) 12:31:57 01/19/04 I did gasket match and smooth the insides some as well (fyi) (n/m) - Woody75 (Denver) 12:40:15 01/19/04 very clean, I don't know what Ash si talking about? (n/m) - MikeH(Twin GT35BB Incon Z) 13:54:52 01/19/04 The opening in the turbo is much smaller than the exit - RegalZ 17:12:41 01/19/04 The exducer bore of the PE1420 is smaller than the GD - AshsZ 01:03:31 01/20/04 Here is the dyno from my car with Z1 Stage2's and stock - AshsZ 01:11:52 01/20/04 You people need to read more. No one did 520+ in CO. - Woody75 (Denver) 08:43:39 01/20/04 damn...not that great for the mods... - Gsujeff55 11:21:44 01/19/04 I thought the PE1420 had more power than that ? (n/m) - Slowninja(Sport600 Inconnel Z) 12:45:37 01/19/04 *Inconel (n/m) - fourZero 18:09:50 01/19/04
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