Subject	No the they are essentially detuned to 280HP in Japan.
Posted by	YugoBernie (NoVA) on November 14, 2002 at 2:45 AM
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In Reply To	Are J-Spec TT engines faster than US-TT engines? posted by AzNgUyZX on November 14, 2002 at 02:29 AM
Message	The "advantage of JSpec engines" is that they are cheap and plentiful in Japan for various market reasons, which in turn means that it *CAN* be more cost effective to just replace with a JSpec then rebuilt a US one. The differences are minor and all external parts can be swapped over pretty simply, however my understanding is that the Jspec units use what we call the "automatic" turbos and cam duration/profile. (I do not know the fine details). Bottom line is this, anyone claiming that a JSpec engine is somehow "better" then a US in THIS context is full of shit, and there is no reason to replace w. a JSpec for ANY performance reason. Its simply a (relativly) cheaper alternative to rebuilding a engine if you can score a clean JSpec import. Bernie Bilski berniebilski@comcast.net 1995 NISSAN 300ZX TwinTurbo 5 Speed in Cobalt Green 1989 YUGO GVL 5 Speed in Arctic White ZCCNV #390 ~ ECZA #368 "Like most 11-year-olds, I identified with the life of the rapping pimp."
Follow Ups	Are J-Spec TT engines faster than US-TT engines? - AzNgUyZX 02:29:05 11/14/02 same that i am aware of - CaptanZap 02:34:55 11/14/02 No the they are essentially detuned to 280HP in Japan. - YugoBernie (NoVA) 02:45:35 11/14/02 Explain this: (Dyno Chart enclosed) - David 94TT 02:55:41 11/14/02 What does this have to do with the price of tea in China? - YugoBernie (NoVA) 03:03:33 11/14/02 Re: What does this have to do with the price of tea in China - David 94TT 03:10:25 11/14/02 Could be any number of factors including a out of tune dyno - YugoBernie (NoVA) 03:16:31 11/14/02 Oh --> - David 94TT 03:27:49 11/14/02 It ain't the dyno. The JSPEC motors are hindered on purpose. - Miles (San Antonio, TX) 09:04:00 11/14/02 sense when? the only thing for years that has been - Halo Z 15:57:06 11/14/02 Bumpsticks (ie, valves) are inferior in early JDM engines. - Miles (San Antonio, TX) 16:57:01 11/14/02 **********news flash************* - Halo Z 21:36:31 11/14/02 thats what most charts w/ those mods would run - CaptanZap 03:08:43 11/14/02 I have. Show me one better (n/m) - David 94TT 03:14:05 11/14/02 inside - CaptanZap 03:23:10 11/14/02 And put down 12RWHP less (n/m) - David 94TT 03:24:43 11/14/02 gutted cats = 12RWHP I'd say (n/m) - Furious(Houston) 11:50:22 11/14/02 Link -> - David 94TT 03:23:39 11/14/02 some people get lucky with "freak engines" like Mike M. - CaptanZap 03:32:17 11/14/02 Or that one TT that ran a 13.1 with only a POP Charger (n/m) - U ZCREAM (Vice City) 10:38:32 11/14/02 That is an awesome Dyno anyone must say. - ZBlacktt 09:14:37 11/14/02 So where does the 20hp do and how do you get it back? (n/m) - Sloth 03:07:26 11/14/02 just make sure you put it in an automatic car =c) (n/m) - CaptanZap 03:12:19 11/14/02 JDM @ a loss. Less superior head equipment & plumbing. (n/m) - Miles (San Antonio, TX) 09:01:18 11/14/02 I think everyone is over looking the fact that some jspec>> - twinturbo_j 11:40:27 11/14/02 Don't the Japanese have higher Octane Gas? - Janders 18:25:19 11/14/02
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