1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

4.78

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Old Jul 11, 2006 | 10:36 AM
  #1  
Siraniko's Avatar
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From: Socal
4.78

Open trade for 4.44 + cash FOR 4.78 or larger gears


https://www.rx7club.com/showthread.p...=1#post5862811
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Old Jul 11, 2006 | 10:42 AM
  #2  
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Nigga stole my bike!
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From: Des Allemands, Louisiana
What's your RPM at 70mph in 5th gear with the 4.44s, if you don't mind me asking?

Do you know what it'll be with 4.78s?
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Old Jul 11, 2006 | 10:47 AM
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above 5K. RPM was dropping as I let off the gas to take pix during the rotary fest caravan. Keep in mind that I used 46 venturies in the 48 IDA. Otherwise, I would be cruisng @ 5500 at 85 mph.


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Old Jul 11, 2006 | 06:38 PM
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Originally Posted by wackyracer
above 5K. RPM was dropping as I let off the gas to take pix during the rotary fest caravan. Keep in mind that I used 46 venturies in the 48 IDA. Otherwise, I would be cruisng @ 5500 at 85 mph.


How have you corrected the speedo?
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Old Jul 11, 2006 | 11:18 PM
  #5  
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yes except I let off the gas so I can take that picture. It was after Doc and I were hitting around 140. How do I know its accurate? My bro (GSL-SE) and I drove side by side on prior run to confirm that my speedo is correct.

Last edited by Siraniko; Jul 11, 2006 at 11:36 PM.
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