chris_uk
Premium Member
Registered: 8th Jul 03
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does someone wanna explain to me what F10 , F15, F20 etc etc actualy means
pleeeeease
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Ditch
Member
Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
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I seem to remember that the 13 in F13 means that the box will take 130lb/ft of torque
assume this is true for the rest of them ie. F15 will be stronger and can take up to 150lb/ft of torque
sure someone will correct me on this if wrong
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Ditch
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Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
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oh and an F10CR is Close Ratio box
therefore an F10WR is a Wide Ratio box
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chris_uk
Premium Member
Registered: 8th Jul 03
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ok, so i take it you could put an F20 gearbox in a 1.2
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Ditch
Member
Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
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dont think so fella, if it did fit then the ratios would be all wrong!!
Your looking at an F10 or F13 for a 1.2 16v
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MattyB
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Registered: 13th Nov 01
Location: 118.5bhp :D
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No, there are 2 'series' of boxes.
From what i can remember, the F10, 13 and 15 are from the small block family. The F16 upwards are from the big block series.
The 2 arnt interchange able, so no, a 1.2 8v cudnt have an F20 fitted. Even if it could, it wud be extremely slow!!
The 10/13/15 etc stands for the amount of torque the box can take (100/130/150lb respectively).
The number after it denotes the number of gears, and the CR/WR after that, depict whether it is close or wide ratio's.
ie: F20/5CR is the 5 speed box fitted to the 2.0 engines, in close ratio form. At maximum, it could handle 200lb/torque.
I believe there is also a separate code that goes after the normal codes, to denote whether the box is FWD/RWD or 4WD, but i dont know it.
Matt
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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f meens front wheel drive or 4 wheel drive, r meens rear wheel drive.
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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The F17 is small block aint it?
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stuyw
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Registered: 15th May 02
Location: North West Drives: Rev3 MR2 Turbo
User status: Offline
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F16/F20 gearboxes are only used on big block vauxhall engines, so an F20 will not fit a 1.2
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