Vauxhall F20 / F16 differences
16-12-2008, 08:32 PM
#1
Vauxhall F20 / F16 differences
as above whats the difference between a f16 and f20 gearboxes, my mates got a half built 20xe nova and whats to know which is the best box, mainly be use a quarter of a mile at a time but may be made road legal.
cheers steve.
cheers steve.
16-12-2008, 08:44 PM
#3
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different ratios as far as i know. im going back years and years now but i had a 16v nova and it started life with an F20. changed it to the F16 and the gears were far shorter. could hit the limiter in 5th with the F16.
Im sure chip or any of the other vauxhall boys will help you out as soon as they see this
Im sure chip or any of the other vauxhall boys will help you out as soon as they see this
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16-12-2008, 09:13 PM
#12
the F16 close ratio is the same ratio as a standard f20, the wide ratio has a higher final drive
you can get a ''slightly'' closer ratio f20 found in the 4x4 cav that has higher final drive than a standard f20
but if its a standard xe either will do
you can get a ''slightly'' closer ratio f20 found in the 4x4 cav that has higher final drive than a standard f20
but if its a standard xe either will do
16-12-2008, 09:15 PM
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16-12-2008, 09:38 PM
#19
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I have put 15k miles on my XE Nova's F20 box, I always kick the (unt out of it and its never failed me once, neither has the clutch....
16-12-2008, 10:25 PM
#21
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My F28 shattered the diff and blew it through the box in several places running phase 2 in a Corsa. It had been rebuilt/re conned no more than 500 miles before I got my hands on it. It lasted a fortnight. In 3 cars I have destroyed 12 diffs. They dont like my driving style. 
My V6 Vectra is surviving so far but has developed a very light CV type noise, hoping its not another diff.
My V6 Vectra is surviving so far but has developed a very light CV type noise, hoping its not another diff.
17-12-2008, 06:50 AM
#22
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f16cr tops out about 135 at 6500rpm
f20 tops out at 150 at 6500rpm from what i remember
standard f16 is silly long legged, saw an indicated 140 in 4th in my old cav sri down hill on the m1.
22-12-2008, 07:16 PM
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I would say for 1/4's you'd want the F16, only bother with this in a road car is at motorway speeds you have higher revs and you end up deaf!!!!!
22-12-2008, 07:55 PM
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