csweatherston
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Registered: 16th Jan 06
Location: Devon
User status: Offline
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fitted my new gearbox today, its lovely and smoothe now....but im unsure wether it was a f15 cr or wr......
where exactly would i notice the difference?...
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csweatherston
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Registered: 16th Jan 06
Location: Devon
User status: Offline
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anyone know??
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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You notice the difference when on the motorway etc, at 70mph your doing about 3/4k rpm whereas a WR would mean the engine would be doing less revs for the same car speed.
If you can do about 50mph in 2nd gear its a CR box.
It will be stamped into the endplate of the box, something along the lines of f15cr3.74
[Edited on 05-12-2006 by Vaux Lad]
[Edited on 06-12-2006 by Vaux Lad]
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csweatherston
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Registered: 16th Jan 06
Location: Devon
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erm...2nd gear tops out at just over 65mph (doin just over 7k)
3rd gear just over 90...
so u recon this would be a CR then?
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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Sounds like a WR to me.
Or its a CR with a low final drive.
3rd gear on my f15cr with 3.74 final drive gives about 80mph in 3rd, at about 6200rpm that is tho.
[Edited on 06-12-2006 by Vaux Lad]
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csweatherston
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Registered: 16th Jan 06
Location: Devon
User status: Offline
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hmmm...any more accurate way of tellin?......is there any stampings on the box?
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Yeah, if you look through the front passenger wheel arch the code is stamped under the end plate cover, on the bottom edge.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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 how can you tell what gearbox it is from his velocity it all depends on the rev limit for the engine, and for an X16XE with a 6750RPM rev limit with an F15CR, top speed is 58mph.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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in 2nd
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Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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quote:
Originally posted by Cybermonkey
how can you tell what gearbox it is from his velocity it all depends on the rev limit for the engine, and for an X16XE with a 6750RPM rev limit with an F15CR, top speed is 58mph.
Eh?
Enter the gearbox type and his rev limit into a program which calculates top speed.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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yeah i saw your edit AFTER my last post, nice one 
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