proper shifting in high RPM - Page 2

Dec 29, 2008 | 07:12 AM

#26

I8U

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From: Carolina Beach, NC

Quote:

Originally Posted by tibyABv6

NO, you should shift at 9k so you would land higher in power band in next gear ... look at the dyno, compare power you make in rpms that you land next gear to power at 9k

at 9k rpms you make 170whp, shifting to second you land in 6k rpms and only making 140whp... if you shift at 8.5k you land lower.

Besides, we're not even talking about hp, we're talking about where/when to shift in the upper rpm range. Oh yeah like kersh4w said, most of us here are seeing higher numbers in the 8-9k rpm range...hell, I pulled a 182whp on fouled plugs and bad coils...

Dec 29, 2008 | 07:30 AM

#27

Raptor2k

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From: DFW, TX

Shifting over 9k in the first three gears puts you in the best spot in the power band. For 4th gear and the rest, around 8.5 is the better shift point.

Dec 29, 2008 | 07:44 AM

#28

SouthFL

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Quote:

Originally Posted by tibyABv6

Read post #10. I clarified my statement further.

And, thanks Kersh.

Dec 29, 2008 | 12:01 PM

#29

Brettus

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From: Y-cat-o NZ

Something I prepared earlier - you can see the lowest rpm between shifts is 6000 in 2nd
http://www.youtube.com/watch?v=NzlvS...eature=channel

For comparison here is a turbo shifting 700-800 rpm earlier
http://www.youtube.com/watch?v=EkiV4...eature=channel

And same turbo shifting over 2000 rpm earlier
http://www.youtube.com/watch?v=9ItRi...eature=channel

Dec 29, 2008 | 05:17 PM

#30

kersh4w

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From: DC Area

man that tach climbs quickly with a turbo...

Dec 31, 2008 | 12:44 AM

#31

Brettus

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From: Y-cat-o NZ

/\ that was before i upped the boost

Jan 6, 2009 | 10:06 AM

#32

tibyABv6

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From: whitehall, MI

Quote:

Originally Posted by SouthFL

Read post #10. I clarified my statement further.

And, thanks Kersh.

yes, I was trying to explain how to figure out best shift point - base it on power curve, has nothing to do with peak power ... as some who replied had no idea what they were talking about

I8U - your power curve + your gear chart with mph/rpms for each gear is the best/easiest way to figure out shift points