It changes where the rubber meets the road, not the actual gear ratio of the
gear box. Pat
-----Original Message-----
From: roadster <roadster@rcn.com>
To: Patrick P. Castronovo <slick1@mohaveaz.com>; Fred_Katz@ci.sf.ca.us
<Fred_Katz@ci.sf.ca.us>; datsun-roadsters@autox.team.net
<datsun-roadsters@autox.team.net>; Michael Poorboy
<bitterrootprop@nidlink.com>
Date: Thursday, February 08, 2001 9:41 PM
Subject: Re: Roadster gear ratio's
>Pat,
>
>Nope. Check your figures again. I'm using a 5-speed with a 3.90 rear end.
>When you calculate the ratio between a 3.70 and a 3.90, it changes the
>effective gearing ratios!
>
>Fred
>
>----- Original Message -----
>From: "Patrick P. Castronovo" <slick1@mohaveaz.com>
>To: <Fred_Katz@ci.sf.ca.us>; <datsun-roadsters@autox.team.net>; "Michael
>Poorboy" <bitterrootprop@nidlink.com>
>Sent: Thursday, February 08, 2001 4:55 PM
>Subject: Re: Roadster gear ratio's
>
>
>> You have the gearing wrong. 5 speed:
>>
>> Fred Chilton
>> book
>>
>> 1st 3.117 2.957
>>
>> 2nd 1.958 1.858
>>
>> 3rd 1.382 1.311
>>
>> 4th 1.054 1.000
>>
>> 5th .898 .852
>> Pat
>>
>> -----Original Message-----
>> From: Fred_Katz@ci.sf.ca.us <Fred_Katz@ci.sf.ca.us>
>> To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>;
>> Michael Poorboy <bitterrootprop@nidlink.com>
>> Date: Thursday, February 08, 2001 2:18 PM
>> Subject: Re: Roadster gear ratio's
>>
>>
>> >Mike,
>> >
>> >So if you have a 1600 rear end 3.9, with a 5-speed trans then you get
the
>> >following?
>> >
>> >5-spd with
>> >1600 Rear end standard : 3.9
>> >
>> >1st Gear : 3.117
>> >2nd Gear : 1.958
>> >3rd Gear: 1.382
>> >4th Gear: 1.054
>> >5th Gear: .898
>> >
>> >And with smaller than stock wheels, that moves the 5-spd values for 1st,
>> >2nd, 5th even closer to the stock 4-spd values for 1st, 2nd, and 4th.
>Very
>> >interesting!
>> >
>> >Fred - So.SF
>> >BADROC
>> >'66 with 2000/5spd.
>> >
>> >___________________ Reply Separator _________________________
>> >>Subject: Roadster gear ratio's
>> >>Author: Michael Poorboy <bitterrootprop@nidlink.com>
>> >>Date: 2/8/2001 12:43 PM
>> >>
>> >>List,
>> >>I found my manual so here are the numbers for the Roadster:
>> >>
>> >>1600:
>> >>
>> >>Rear end standard : 3.9
>> >>
>> >>1st Gear : 3.382
>> >>2nd Gear: 2.013
>> >>3rd Gear : 1.312
>> >>4th Gear : 1.00
>> >>
>> >>
>> >>2000
>> > >Rear end gear standard : 3.70
>> >>
>> >>1st Gear : 2.957
>> >>2nd Gear : 1.858
>> >>3rd Gear: 1.311
>> >>4th Gear: 1.00
>> >>5th Gear: .852
>> >>
>> >>And the calculator link again is :
>> >>
>> >>http://www.geocities.com/z_design_studio/
>> >>
>> >>Thanks,
>> >>Mike
>> >>Nowroc
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