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celicamad
Forums Junkie

Location:
newcastle
Registered:
June 2002

Re: Zoom 1JZ Tuners Guide	Sat, 20 March 2004 06:43

hmmmmmmmmmmmmmm all very interesting a few points 1jz 747 shane correct me if im wrong but i believe your car NEVER ran under 13.3 secs .let alone a high 12 The best time andys car ever ran on my dyno plus was a 13.10 and judging by your 1/8th mile times at the toyota nationals you where more than 1/2 a second slower than Andys car on average . in fact the only cars to ever run under 13 secs on my dyno plus where joey limo3l 12.90 and 12.80 at the creek and frankie ran a 12.98 my car ran 12.99 with 8.82 1/8th mile (the same 1/8th mile time it ran at the Toyota Nationals).considering how much faster my 1/8th time at dubbo was than yours Shane i cant see how you could doubt this figure now in regard to power readings YES they vary from dyno to dyno . a few sceptics have jumped up and down about the high power figures obtianed on my dyno plus . why are they high ?????simple 5 klm cooling runs on 5 degree nights at almost sea level with light sleet in the air .this gave about 10% higher figures than a 25 degree day for obvious reasons eg andy's car gave 242 rwkw 5 degrees etc and 217 rwkw on a 28 degree day.times where equally effected . hmmm i think it gave 212 at toymods dyno day ...about 35 degrees -------------------------------------------------- ---------- as far as how far can 1j injectors be pushed well andy fitted a BIG gt35/40 with trust manifold and 4 inch dump (AWESOME job VERY neat)...(your still gay though andy ) at 25 degrees it made 262 rwkw (factory ecu low boost) and had a termainal speed on the 1/4 mile of 182 kph (previously 172).with LAZY 1500rpm launches(slipping clutch) its 0-200kph speed was 1.5 seconds faster than before . So i doubt the power figure can be disputed duty cycle has not yet been measured but mixtures where O.k .i well imagine hes pushing the limits of duty cycle. now any auto usually reads about 10% lower than manual . Andy actually proved this when he dropped the auto for the manual . (of course his best EVER 0-100 was with auto) So assuming the dyno plus. an auto would be capable of around 232 rwkw on stock injectors so to relate directly to toymods dyno take any power figures from my dyno plus less say 10%(pretty much proven over about 12 cars) id say 208 rwkw on an auto and 232 rwkw for a manual and ill let you all know what duty cycle once its measured .But i doubt MUCH if any more can be squeezed out Martin donnans terminal speed does relate to a decent power figure . However with andy's terminal speed approaching 182 kph with the laziest launch in history i have to cast doubt on the power figures in zoom . however the editiors in zoom are probably assuming the average dyno drongo giving a PEAK power figure . andys power figure peaked at 280 rwkw THE ONLY WAY TO COMPARE POWER OF TWO DIFFERENT CARS (unless you can get them on the same dyno)IS TO COMPARE TERMINAL SPEED TO VEHICLE WEIGHT i believe Norbies terminal speed!! his 1/8 th mile times and toymods dyno day figures back that up when you consider andys car weighs 1660(with him in it) id say the power figures are about spot on too norbie around 232 rwkw( i think) andy around 260 rwkw this formuala gives engine h.p hp = (mph / 219.87)3.18674 x weight (lbs) so for manual toyota take off around 20% for rwhp. multiply by 0.746 for rwkw KPH to MPH multiply by 0.621 kgs to pound multiply by 2.2 try it yourselves here http://www.stealth316.com/2-calc-hp-et-mph.htm(i have found the lrt formulas best relate to street cars ) [Report message to a moderator]

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