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BlackSupra
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August 2002
Explanation of dyno chart anomaly?? Tue, 23 December 2003 11:16 Go to next message
Can someone explain the issue between 3500-4000rpm??

http://www.rwsupra.com/Images/dyno.jpg

This is a 2JZGE with a trial of a different midpipe section, increased to 2.75in diameter

Ta guys Cool
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gianttomato
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Re: Explanation of dyno chart anomaly?? Tue, 23 December 2003 12:26 Go to previous messageGo to next message
Do you mean between 3000 and 3500 rpm? Simple. There was no measurement made below 3500 rpm for the base run and 3250 for the test run. Then they simply drew a straight line from 3000 to 3250/3500 rpm. Why did they do this? You have to ask them that did the dyno.

As a side note, that dyno run was actually done with a 3" mid pipe AND the cat removed (read the fine print). Also, anyone with half a scientific mind would know that one should consider the average of 3 runs. The other person who claimed 10 or so horsepower also plugged in SAFC and had it tuned - so did the SAFC or the mid pipe make power?

The merit of the mid pipe modification remains dubious IMHO. 5 pages of pure crap. Eventually they will work out the first metre (or yard) of exhaust is the most important.
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ed_ma61
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Re: Explanation of dyno chart anomaly?? Tue, 23 December 2003 13:49 Go to previous messageGo to next message
well, that little graph makes the 7m's g-tech run significantly more impresive...
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BlackSupra
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Re: Explanation of dyno chart anomaly?? Wed, 24 December 2003 07:31 Go to previous message
ah that explains it alot

i thought the initial increase, which then met back at with the base run, then leapt up again was a bit weird but that explains it fine.

Ta Dave.
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