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eddgsiturbo
09-09-10, 08:41 PM
my nova has just destroyed 3rd gear for the 3rd time, i was runnin f20s, is there any differances if i was to get a f16? ie would i still be able to use the same clutch as the f20, as its had a new paddle clutch recently and if i gotta change the clutch i may aswell go f28. also is there much differance in strength from f20 and f16? what other boxs could i use that wouldnt mean changin to a f28? also does anyone have or know of a cheap f20 localy to me? cheers in advance :thumb:
John
09-09-10, 08:42 PM
Go f28 fella.
mk1nova_rich
09-09-10, 08:46 PM
as John said, for long term reliability an F28 is the best option, otherwise you will continue changing shonky old F20s
eddgsiturbo
09-09-10, 08:46 PM
Go f28 fella.

yea i wanna eventually but at the mo i havnt got the funds as goin on holiday next week. ideally i want a straight cut f20, but they go for big money.
mowgli
09-09-10, 08:49 PM
do you strip & service the boxes then re fill with fresh 80w90 gear oil? or just bang them in with a topup?
eddgsiturbo
09-09-10, 08:52 PM
do you strip & service the boxes then re fill with fresh 80w90 gear oil? or just bang them in with a topup?

i put new gaskets/seals in them and use a good quality gear oil, the 1st 2 that went i had a atb diff in and were in my astra gsi, but this time i never got round to gettin the diff in as only really just got the engine in my nova.
mowgli
09-09-10, 08:54 PM
you must be very unlucky with your boxes
eddgsiturbo
09-09-10, 08:57 PM
you must be very unlucky with your boxes

yea i think i am as my mate was runnin 318bhp in his mk2 astra turbo and never had any box problems, im only runnin about 280bhp and seem to be goin through them. i have only paid 50quid for each box so its not 2 bad yet, think i will get 1 more then look at f28 or straight cut f20.
mowgli
09-09-10, 08:59 PM
would the f23 fit?
Sloth
09-09-10, 09:00 PM
go for an f23.
Sloth
09-09-10, 09:02 PM
i honestly think a vectra 2.0 f23 would mount up.
Sloth
09-09-10, 09:05 PM
this one, look at teh mount.

http://cgi.ebay.com.au/HOLDEN-VECTRA-GEAR-BOX-/250694235645?pt=AU_Car_Parts_Accessories&hash=item3a5e8a75fd
eddgsiturbo
09-09-10, 09:11 PM
funny thing is i had to put a new engine in a 2.0dti zafira the other day and noticed the same thing, as far as i could tell all holes are the same places, starter looks to be the same aswell, only thing was it was cable change. there was a bit in tv this month about specky usin a f23 and the ratios wernt right, he done a top speed run and done 178mph in 4th iirc. 5th is to long i think.