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01-02-2008, 08:11
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#1 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Corsa TD gearbox question
I have had two corsa 1.5TD's I currently run an S plate model one of the last I reckon. Anyway the gear ratios seem different to my old L reg - its doing 4K revs @ 80 mph same as a Sport. I am thinking that vaux just stuck one of the sport boxes on it - I am looking at adjusting the boost etc and happen to have a box from a 2.0 ecotec astra but not sure if it will fit - does anyone know? | 
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01-02-2008, 11:02
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#2 | | MIGWeb User
Join Date: Jan 2008
Posts: 23
| box will not fit as engine is not a vauxhall ,izuzu engine used | |
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01-02-2008, 22:16
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#3 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Is this the case, I thought the box would have been a vaux one. | |
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04-02-2008, 20:08
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#4 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Anyone else? | |
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04-02-2008, 21:11
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#5 | | MIGWeb User
Join Date: Jun 2004 Location: Twisk, Holland Drives: '97ComboD '93NovaTD
Posts: 532
| It will fit, but it won't help ! Finding an F13 gearbox with Wide Ratio and a final ratio of 3.35 or 3.55 would help  (extremely rare though)
4k rpm @ 80 sounds about right for a TD corsa. (probably has the F13 wide ratio & 3.74 FD, see chart):  | |
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04-02-2008, 21:58
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#6 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Thats really helpful thanks, why will the F18 (i think) from the Astra CDX ecotec not help from what I remember it had a taller 5th gear at least. Not really an expert on ratios etc so more info and help would be appreciated. | |
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05-02-2008, 07:52
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#7 | | MIGWeb User
Join Date: Aug 2007 Location: stockport/manchester Drives: 150 bhp 8v nova
Posts: 630
| i have the f13 mentioned above and its for sale for the right price ;-)
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my girlfriend told me nova was a crappy chav's car!!
now i'm single | |
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05-02-2008, 08:11
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#8 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Is it the 3.35 thats mentioned? How much are you looking for? | |
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08-02-2008, 20:26
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#9 | | MIGWeb User
Join Date: Jun 2004 Location: Twisk, Holland Drives: '97ComboD '93NovaTD
Posts: 532
| Quote:
Originally Posted by 3.0V6  Thats really helpful thanks, why will the F18 (i think) from the Astra CDX ecotec not help from what I remember it had a taller 5th gear at least. Not really an expert on ratios etc so more info and help would be appreciated. | F18Close ratio has a 5th gear ratio of 0,89 and a final ratio of 3,45
F13Wide ratio has a 5th gear ratio of 0,76 (post '96 models) and a final ratio of 3,74 (some with 3,35)
F18 -> 1:0,326 (1 revolution in = 0,326 revolution out)
F13 -> 1:0,352
So, the F13 will give more speed per rev. then the F18. (even if the F18 is wide ratio, it's not worth the hassle of changing inner cv-joints and clutch). | |
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09-02-2008, 07:06
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#10 | | MIGWeb User
Join Date: Oct 2005 Location: leicester Drives: Calibra v6 soon...
Posts: 93
| where will it say what final drive you have?
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v6 = porn | |
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09-02-2008, 08:34
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#11 | | MIGClub Member
Join Date: Dec 2005 Location: Staffordshire Drives: Cavalier 1.7 TD
Posts: 12,759
| Quote:
Originally Posted by holden1968 box will not fit as engine is not a vauxhall ,izuzu engine used | 
Can you not use the same gearbox as the Cavalier (F18w)?
Mine does 25mph for every 1000rpm. 75mph is bang on 3000rpm. 
__________________ Cavalier: Going strong, 153'300 miles and 169ftlbs.
Corsa: XE on the way. Ba-dum tsssh. | |
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09-02-2008, 12:46
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#12 | | MIGWeb User
Join Date: Jun 2004 Location: Twisk, Holland Drives: '97ComboD '93NovaTD
Posts: 532
| Quote:
Originally Posted by Jack
Can you not use the same gearbox as the Cavalier (F18w)?
Mine does 25mph for every 1000rpm. 75mph is bang on 3000rpm. | Yes, but then you'll have to change the clutch and inner CV's aswell. | |
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09-02-2008, 12:54
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#13 | | MIGClub Member
Join Date: Dec 2005 Location: Staffordshire Drives: Cavalier 1.7 TD
Posts: 12,759
| To big block stuff? I'd be tempted to do that anyway, just for reliability's sake. | |
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11-02-2008, 17:59
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#14 | | MIGWeb User
Join Date: Oct 2005 Location: leicester Drives: Calibra v6 soon...
Posts: 93
| mine does 80 at 3k? is it poss i have a 3.35? | |
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11-02-2008, 19:53
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#15 | | MIGWeb User
Join Date: Jun 2004 Location: Twisk, Holland Drives: '97ComboD '93NovaTD
Posts: 532
| Could be, look here: 
If it says w335 at the end, then you do ! | |
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13-02-2008, 20:09
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#16 | | MIGWeb User
Join Date: Oct 2003 Location: Cheshire Drives: Elite 3.0 & Cav GSi
Posts: 231
| Thats what I need 3.5K would be OK at 80mph but 4K feels like I am killing it! | |
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