10-24-2010, 12:50 AM
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#8
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
Originally Posted by mk4respect
Ah yes, the gentlemen's agreement. Officially, no production car in Japan is supposed to be listed with more than 280 horsepower at the flywheel. I think the guys at Mazda probably got over the GT-R's stock power when they found out Nissan could pop on an optimized ECU and squeeze 360 out of the RB26DETT. They were more than happy with the stock computer then. :smoker2:
The JDM MKIV Supra TT was spec'ed at 280 hp. And it seems that it was actually limited to that. The U.S. Supra went 13.3 in the 1.4 mile, while the Japanese Supra came in at 14 flat, 7/10s of a second slower! An American-market car that's faster than its Japanese domestic cousin? Sounds crazy. The JDM Supra came with smaller injectors (430cc vs. 540) and a different final drive. So they didn't just "chip it" like many other manufacturers did.
The NSX at least used to conform to the 280 limit. I remember one dynoing at 270. Of course, who knows how much it puts out above redline. Redline is 8k, but the rev limiter doesn't kick in until 8300 (don't tell the owner I know this!). Remember, the numbers they give you in the U.S. don't necessarily reflect what they tell the people of Japan.
As far as I know, the agreement is still in effect. In fact, I believe it's law. Japan has always had some interesting laws concerning automotibiles, and many of these are responsible for the development of the high-tech, small-displacement motors we know and love. In other words, if it wasn't for weird regulations and subsidies, I might be cruising around in a pushrod 650ZX Twin Ram-Air. Ack, that sent a shiver down my spine...
http://www.automotivehelper.com/topic40821.htm
here ya go.
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Thanks for the info (+1 rep ).
Interesting to see that this "gentleman's agreement" has *nothing at all* to do with exporting used vehicles to Canada.
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Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.
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Last edited by pwpanas; 10-24-2010 at 01:00 AM.
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