j7 gkk
Member
Registered: 16th Jun 05
Location: Sheffield
User status: Offline
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right im takin the engine (x14xe) out to do a bit of work on the car, ive been told that if i put a f15 instead of the f13 on my 1.4 it will go a bit better, is this true? or should i just stick with the f13?
]let me know ur findings/knowledge, cheers 
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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gearing is different, but not overly great
but how do you mean go a bit better??
faster 0-60? top end?
judge for yourself (stats)
F13/5 CR
code:
Wheel rim size 14 Tyre section 185 Aspect ratio 65
diff ratio 3.94 Wheel diameter 23.468
1st gear ratio 3.55
2nd gear ratio 2.14
3rd gear ratio 1.43
4th gear ratio 1.12
5th gear ratio 0.89
rev limit 6500 <- rev drop at ->
Limit <- change point ->
1000 2000 3000 4000 5000 6000 7000 8000 6500 500-600-700-800-650
1st (3.55 ) 4.9 10 15 20 25 30 35 40 32 301 361 421 482 391
2nd (2.14 ) 8.2 17 25 33 41 50 58 66 54 334 400 467 534 434
3rd (1.43 ) 12.3 25 37 50 62 74 87 99 81 391 469 548 626 509
4th (1.12 ) 15.8 32 47 63 79 95 111 127 103 397 476 556 635 516
5th (0.89 ) 19.9 40 60 80 100 119 139 159 129
Revs @ 60 mph in 4th 3.792 Revs @ 70 mph in 4th 4.424
Revs @ 60 mph in 5th 3.013 Revs @ 70 mph in 5th 3.515
F15/5 CR
code:
Wheel rim size 14 Tyre section 185 Aspect ratio 65
diff ratio 3.74 Wheel diameter 23.468
1st gear ratio 3.73
2nd gear ratio 2.13
3rd gear ratio 1.41
4th gear ratio 1.12
5th gear ratio 0.89
rev limit 6500 <- rev drop at ->
Limit <- change point ->
1000 2000 3000 4000 5000 6000 7000 8000 6500 500-600-700-800-650
1st (3.73 ) 5.0 10 15 20 25 30 35 40 33 285 342 399 456 371
2nd (2.13 ) 8.7 18 26 35 44 53 61 70 57 330 397 463 529 430
3rd (1.41 ) 13.2 26 40 53 66 79 93 106 86 397 476 556 635 516
4th (1.12 ) 16.6 33 50 67 83 100 117 133 108 397 476 556 635 516
5th (0.89 ) 20.9 42 63 84 105 126 147 168 136
Revs @ 60 mph in 4th 3.599 Revs @ 70 mph in 4th 4.199
Revs @ 60 mph in 5th 2.860 Revs @ 70 mph in 5th 3.337
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johnny27
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Registered: 5th Feb 06
User status: Offline
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remember that not all f13 or f15 boxes are CR, infact very few. Check the codes on both boxes for W or C, also check the fd ratio, 3.94 not very much difference in acceralation. You'd want a 4.18 fd to make any noticable difference, even at that you'd want small wheels.
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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F13/5CR was fitted to ALL X14XE engines (Sport, SRi 16v), aswell as C14SE on Corsa SRi 8v
F15/5CR was fitted to ALL C/X16XE Engines (Sport, GSi)
F13/5WR were fitted to 12NZ, C12NZ, X12SZ, C14NZ engines
if you want a model-to-gearbox comparisson chart I can do it as I got the information direct from Vauxhall for my own research into the Corsa B
[Edited on 15-03-2006 by PaulW]
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ianofbhills
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Registered: 10th Feb 01
Location: newcastle
User status: Offline
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my old corsa sri with x14xe engine had an f15 gearbox. I knew the person who had it from new and they never replaced the gearbox so it came like that from vaux.
I've heard of other cars like this too.
seems vaux just fitted whatever they had lieing around.
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Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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quote:
Originally posted by PaulW
F13/5CR was fitted to ALL X14XE engines (Sport, SRi 16v), aswell as C14SE on Corsa SRi 8v
F15/5CR was fitted to ALL C/X16XE Engines (Sport, GSi)
F13/5WR were fitted to 12NZ, C12NZ, X12SZ, C14NZ engines
if you want a model-to-gearbox comparisson chart I can do it as I got the information direct from Vauxhall for my own research into the Corsa B
[Edited on 15-03-2006 by PaulW]
my old c14se had an f15 box on there... its pot luck i think, I always prefered the f13 box on my x14xe lump though
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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quote:
Originally posted by PaulW
F13/5CR was fitted to ALL X14XE engines (Sport, SRi 16v), aswell as C14SE on Corsa SRi 8v
F15/5CR was fitted to ALL C/X16XE Engines (Sport, GSi)
F13/5WR were fitted to 12NZ, C12NZ, X12SZ, C14NZ engines
if you want a model-to-gearbox comparisson chart I can do it as I got the information direct from Vauxhall for my own research into the Corsa B
[Edited on 15-03-2006 by PaulW]
Wrong, 12NZ engines has the F10/4 or 5 speed
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johnny27
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Registered: 5th Feb 06
User status: Offline
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it seems to be luck of the draw what gaerbox you have, certain models are supposed to have certiain boxes but not always. I've even seen an odd SR nova with no 4.18 fd and a wide ratio box. And for some reason i have seen C12NZ corsa's with 4.18 W boxes.
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x14xe
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Registered: 15th Dec 05
Location: Sutton-on-Hull, Kingston upon Hull
User status: Offline
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i thought all x14xe had f15 box ?
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johnscorsaXE
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Registered: 14th Sep 04
Location: Walsall
User status: Offline
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im looking for an f13 to buy as mine is fooked. anyone got one spare that they are selling? pm me
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ckallis500
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Registered: 14th Dec 04
Location: plymouth
User status: Offline
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to be honest if you have the power i'd go for a f13/5wr (which i now have on my c16xe) from driving it befor when i had the f13/5cr it is pretty much identicle gearing in 1st/2nd and 3rd, but 4th and 5th are a bigger jump so alot better for cruising on the motorway.. best to with an f13 tho as they have the inspection plate on the bottom of the box, so as long as you have a flat/non-pot type flywheel then its a peice of piss i.e half hour to change a clutch where as on an f15 you'd have to pretty much take the box out.....
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