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Registered
Join Date: Feb 2003
Location: Texas Gulf Coast
Posts: 3,201
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any gearing gurus here?
My '74 gearbox is in the shop in need of repair. I'm considering changing to a lower 4th and 5th.
The 3.0 w/ Mod S cams and carbs makes between 210 and 215 hp at around 6300 peak.
The current gears are
1st 35/11
2nd 33/18
3rd 29/23
4th 25/27
5th 21/29
7:31 r/p
I think these are the same gears as the 73 RS.
The shop that has the box has a 26/25 4th and 24/27 5th that he recommended.
How does this sound?
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-Jay '74 Mexico Blue 911 3.0 EFI (Fast and Loud)
'70 914/6 Race Car (Faster and Louder)
'71 73RSR tribute vintage race car 3.0
'68 SWB 911T "RENNRAT" 2.8 twin plug/915 gearbox
'81 Magenta IROC clone in progress 3.6 varioram/G50
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