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Author engine rebuild which gearbox to use
c16xenov
Member

Registered: 9th Nov 04
Location: falkirk, scotland
User status: Offline
12th Jan 05 at 18:31   View User's Profile U2U Member Reply With Quote

im in the middle or rebuilding ma xe engine and wondering which gearbox to fit for quickest acceleration?


would a f13 from a nova gsi fit the corsa engine?which gearboxes would yous suggest

any comments welcome

cheers kev
J100RSA
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Registered: 4th Mar 01
Location: Thornhill, West Yorkshire
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12th Jan 05 at 18:32   View User's Profile U2U Member Reply With Quote

what xe u got c16 c20 etc etc
c16xenov
Member

Registered: 9th Nov 04
Location: falkirk, scotland
User status: Offline
13th Jan 05 at 16:36   View User's Profile U2U Member Reply With Quote

oh sorry mate its a c16xe

got the mantzel inlet manifold and
chipped ecu to go with it
full system exhaust
bored out to 1650
head skimmed
lightened and balanced flywheel

looking for gearbox to give it quickest acceleration as ive got a few scores to settle once its back in

3CorsaMeal
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Registered: 11th Apr 02
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13th Jan 05 at 16:43   View User's Profile U2U Member Reply With Quote

close ratio F16 box
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
13th Jan 05 at 16:50   View User's Profile U2U Member Reply With Quote

^^^ a big block box? use an f13cr or f15cr, available from SRi's or sports or GSi's
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
13th Jan 05 at 16:51   View User's Profile U2U Member Reply With Quote

F16 is a big block gear box, ya want the CR F15 ya wont be able to tell if its a CR F15 or normal F15 till ya use it though
Rileysport
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Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
13th Jan 05 at 16:51   View User's Profile U2U Member Reply With Quote

has cr stamped on the case i'm sure... there's one in my garden
Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
13th Jan 05 at 16:53   View User's Profile U2U Member Reply With Quote

Oh right i didnt know that i thought the F15 Boxes didnt have the CR stamped on em
James R
Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
13th Jan 05 at 16:54   View User's Profile U2U Member Reply With Quote

Then put a 4.18 final drive in to it.
PaulW
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Registered: 26th Jan 03
Location: Greater Manchester
User status: Offline
13th Jan 05 at 18:33   View User's Profile U2U Member Reply With Quote

yeah there was only the F15CR, but didnt say CR on the box...

I posted this info on my site... may be useful here...

Engine/Gearbox Matchings
Pre- 1995 Model
code:

Engine Code Gearbox Code
12NZ F10/5 WR
C12NZ F10/4 WR or F10/5 WR
X12SZ F10/5 WR
X14NZ F10/5 WR
C14SE
(Combo Van Model) F10/5 WR
(Hatchback Model) F13/5 CR
C16XE F15/5 CR



1995 Model Onwards
code:

Engine Code Gearbox Code
12NZ F13/5 WR
C12NZ F13/4 WR
X12SZ F13/5 WR
C14NZ F13/5 WR
C14SE F13/5 CR
X14XE F13/5 CR
X14SZ F13/5 CR
C16XE F13/5 CR
X16XE F15/5 CR



Gear Ratios
F10/4 and F13/4 WR Gearbox:
code:

Gear Ratio
1st 3.55
2nd 1.96
3rd 1.30
4th 0.89
Reverse 3.31


F10/5 and F13/5 WR Gearbox:
code:

Gear Ratio
1st 3.55
2nd 1.96
3rd 1.30
4th 0.89
5th 0.71
Reverse 3.31


F13/5 CR Gearbox:
code:

Gear Ratio
1st 3.55
2nd 2.14
3rd 1.43
4th 1.12
5th 0.89
Reverse 3.31


F15/5 CR Gearbox:
code:

Gear Ratio
1st 3.73
2nd 2.13
3rd 1.41
4th 1.12
5th 0.89
Reverse 3.31



Differential/Final Drive Ratios (typical)
code:

Gearbox Code Ratio
F10/4 and F13/4 WR 3.94
F10/5 and F13/5 WR
All Except X12SZ Engines 4.18
X12SZ Engine Models 3.74
F13/5 CR 3.94
F15/5 CR 3.74

c16xenov
Member

Registered: 9th Nov 04
Location: falkirk, scotland
User status: Offline
13th Jan 05 at 20:01   View User's Profile U2U Member Reply With Quote

cheers for all the help

think ma mates got a f15 gearbox lying from his corsa sport will see him bout getting the gearbox

cheers again

kev



Siberia
Member

Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
14th Jan 05 at 08:17   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by j1400
Then put a 4.18 final drive in to it.



were would ya get one of these? and is there much involved changing it?
James R
Member

Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
14th Jan 05 at 08:25   View User's Profile U2U Member Reply With Quote

in an F10/5 or F13WR box. you just have to do some hunting and get lucky.
To actually swap it is a bit of a ball ache, but fun, gearbox out, cluster out, diff out, then all back in again. about a 2-4hr job. But for motorway journeys it makes it over rev at 80ish really so depends what you use it for.

 
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