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Author f18 vs f20 gearbox
corsa-vxr
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Registered: 15th Apr 11
Location: ayr
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24th Jul 11 at 18:01   View User's Profile U2U Member Reply With Quote
is the f18 any better than the f20 reason asking is my f20 has had it so wanting bit better accelaration on corsa redtop would prefer an f16 but cant find any and i have a few f18s i can go get cheers fellas
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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24th Jul 11 at 18:10   View User's Profile U2U Member Reply With Quote
Depends what F18 you can get as they done a WR and CR box.

F20 is best suited to the XE.Even an F18c won't be as quick off the mark as 1st,2nd and possibly 3rd are taller gears than the F20.

F16C also has the same ratios as an F20 so don't go looking for 1 thinking the car will be quicker.
corsa-vxr
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Registered: 15th Apr 11
Location: ayr
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24th Jul 11 at 18:11   View User's Profile U2U Member Reply With Quote
hmm ok mate cheers for that f20 itll be then lol saves the hassle
0775kieran
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Registered: 28th Apr 10
Location: Bolton, Greater Manchester
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24th Jul 11 at 23:07   View User's Profile U2U Member Reply With Quote
Im running an f16 at the moment but prefered it when i had an f18 seemed better for when on the motorway with the longer ratios.
Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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24th Jul 11 at 23:18   View User's Profile U2U Member Reply With Quote
F18 will make acceleration much worse

They're only good for a turbo'd car imo
Mr-SEH
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Registered: 10th May 10
Location: Dark places
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25th Jul 11 at 09:36   View User's Profile U2U Member Reply With Quote
i have f18 on my corsa 2.0 8v and i hate it so much i wanted to create a post today but i see this so you boys think f20 or f16 then? how can i tell if the f16 is cr or not cus there is a 1.8 8v at breakers.
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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25th Jul 11 at 12:17   View User's Profile U2U Member Reply With Quote
Try and get an F16c as that is the most suitable box for that engine.

It will say on the box what F16 it is.Think it will be underneath the gear selector.

What car is the 1.8 8v in??

[Edited on 25-07-2011 by Corsa_Sport21]
Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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25th Jul 11 at 12:29   View User's Profile U2U Member Reply With Quote
You see that lug sticking out at the bottom left corner, should tell you if its close or wide ratio (f16c/f16w) and then followed by numbers that indicate the final drive 3.74 for example


Mr-SEH
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Registered: 10th May 10
Location: Dark places
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25th Jul 11 at 13:18   View User's Profile U2U Member Reply With Quote
there a f16 at breakers il go have a look tonite its out of a cav 1.8 8v engine is the cleanest thing i have ever seen had like 50k on clock rear shunt
Mr-SEH
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Registered: 10th May 10
Location: Dark places
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25th Jul 11 at 13:18   View User's Profile U2U Member Reply With Quote
thanks for your help lads
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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25th Jul 11 at 13:49   View User's Profile U2U Member Reply With Quote
Alot of the time you won't find any numbers on the gearboxes.

So you might need to remove the end plate and count the number off teeth on the 5th gear.
Mieran
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Registered: 28th Jan 08
Location: Newcastle upon Tyne
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25th Jul 11 at 14:07   View User's Profile U2U Member Reply With Quote
If there is no lug on the end then there is a chance that box came of a Nova, because they foul the tie bar so people grind it off
Mr-SEH
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Registered: 10th May 10
Location: Dark places
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26th Jul 11 at 06:32   View User's Profile U2U Member Reply With Quote
looked at breakers 2 8v lumps 1 1.8 2nd 2.0 8v both f16 looked on lug could not see c or w

 
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