"According to a Road & Track road test, the 580 horsepower turbocharged straight six Datsun engine pushed the 2600 lbs. car from 0-60 mph in 3.8 seconds. It turned 131 mph the SS¼-mile in 11.5 seconds. Eventually, the engine made almost 700 horsepower which surprised many a Porsche 935."
~http://www.a2zracer.com/page82.html
This Modern Jun drag s30 is only making ~560Hp with nitrous.
~http://www.zzzing.net/jun_auto_sales/
Maybe Tony D could share some information on what the japanese were able to get out of these engines during the 80's. edit: tony beat me to it
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I'm not trying to jack your thread or knock what you've created. It's an obvious improvement, that can't be argued.