Mauisnow13 Posted February 5, 2008 Share Posted February 5, 2008 I have a 1970 240z with a L26 4 spd. My tachometer isn't working at the moment, and it feels like I am losing power in my high rpms. I was wondering if maybe I was just shifting too late. I can't find my 240z - 300zx manual book at the moment, and was wondering what the max shift speeds are for the 260z (or L26). I would appreciate any information, Thanks Quote Link to comment Share on other sites More sharing options...
m4xwellmurd3r Posted February 5, 2008 Share Posted February 5, 2008 i'm not to sure about the L26, but in my 280z (l28) the yellow line (which i assume is the shift point) is at 6000RPM, the redline is at about 6400RPM Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted February 5, 2008 Author Share Posted February 5, 2008 Ya, My RPM guage does not work at the moment so I'm wondering if anybody knows the SPEEDS that you should shift at for max performance. It usually says in the owner manuals. thanks Quote Link to comment Share on other sites More sharing options...
JMortensen Posted February 5, 2008 Share Posted February 5, 2008 Depends on your tire size, diff ratio and transmission. Here is a calculator: http://forums.hybridz.org/showthread.php?t=129842 Quote Link to comment Share on other sites More sharing options...
m1noel Posted February 5, 2008 Share Posted February 5, 2008 Ya, My RPM guage does not work at the moment so I'm wondering if anybody knows the SPEEDS that you should shift at for max performance. It usually says in the owner manuals. thanks With the 3.54 rear end gears, I don't know for sure about 1st 35ish, shifted out of 2nd just over 60, third about 95. Hope this helps. Mike Quote Link to comment Share on other sites More sharing options...
Mauisnow13 Posted February 6, 2008 Author Share Posted February 6, 2008 Thanks guys. That helps a lot. I'll get it started and test this info out. Thank you very much. Quote Link to comment Share on other sites More sharing options...
Sideways Posted February 6, 2008 Share Posted February 6, 2008 Depends on your tire size, diff ratio and transmission.Here is a calculator: http://forums.hybridz.org/showthread.php?t=129842 Might want to recheck that link ? try this one tho- found it very handy. http://www.geocities.com/z_design_studio/ Quote Link to comment Share on other sites More sharing options...
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