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Author redtop gearbox help
jackkaragoz
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Registered: 26th Jun 08
Location: Northamptonshire
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22nd Sep 08 at 12:40   View User's Profile U2U Member Reply With Quote

will a 1.2 8v f13 gearbox fit an astra gt redtop engine
Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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22nd Sep 08 at 12:45   View User's Profile U2U Member Reply With Quote

no
B3KAN
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Registered: 15th Feb 07
Location: Inverness, Highland
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22nd Sep 08 at 13:10   View User's Profile U2U Member Reply With Quote

DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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22nd Sep 08 at 17:02   View User's Profile U2U Member Reply With Quote

smallest that will fit is f16 iirc
jackkaragoz
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Registered: 26th Jun 08
Location: Northamptonshire
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22nd Sep 08 at 17:33   View User's Profile U2U Member Reply With Quote

wats best box for acceleration tho and y wont f13 fit
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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22nd Sep 08 at 18:06   View User's Profile U2U Member Reply With Quote

f16 is the best for acceleration

f13 doesnt fit because of the shape of the bell housing iirc
adam.d
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Registered: 7th Nov 07
Location: hartlepool Drives: corsa LET
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22nd Sep 08 at 22:54   View User's Profile U2U Member Reply With Quote

Yes the smallblock gearboxes do fit with modification. Just fit the F20 and buy some conversion shafts
Limecat
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Registered: 25th Jun 05
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22nd Sep 08 at 23:36   View User's Profile U2U Member Reply With Quote

It will fit, the holes line up, you would need a 'custom' flywheel set-up though.

Think you also need to tweak a part of the inner casing?

[Edited on 22-09-2008 by LETGSI16V]
Forbes789
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Registered: 19th Sep 07
Location: Buckie, Moray
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22nd Sep 08 at 23:50   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by DAZ1985
f16 is the best for acceleration

f13 doesnt fit because of the shape of the bell housing iirc


would it not just rid the f16 apart though??
Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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23rd Sep 08 at 08:12   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by LETGSI16V
It will fit, the holes line up, you would need a 'custom' flywheel set-up though.

Think you also need to tweak a part of the inner casing?

[Edited on 22-09-2008 by LETGSI16V]



So basically an f13 wont fit.


An f13 with modification would but thats not what hes asking, i think you could get anything to fit anything if u had the money..

johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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23rd Sep 08 at 08:22   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Forbes789
quote:
Originally posted by DAZ1985
f16 is the best for acceleration

f13 doesnt fit because of the shape of the bell housing iirc


would it not just rid the f16 apart though??


No the F16 will be fine.
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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23rd Sep 08 at 09:02   View User's Profile U2U Member Reply With Quote

F16 would take 160ft\lb of torque hence being called f16.A good box will be fine on a redtop
adam.d
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Registered: 7th Nov 07
Location: hartlepool Drives: corsa LET
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23rd Sep 08 at 11:20   View User's Profile U2U Member Reply With Quote

Custom flywheel? all you need to do is have the bolt holes on the smallblock flywheel re drilled to fit the redtop, any good engineering shop will do this for not a lot of money. My question is why would you want the F13 on there tho?

I looked at doing this on 1 of my novas but changed my mind!
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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23rd Sep 08 at 11:40   View User's Profile U2U Member Reply With Quote

Re drill the fly wheel? No ta

adam.d
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Registered: 7th Nov 07
Location: hartlepool Drives: corsa LET
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24th Sep 08 at 09:28   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by DAZ1985
Re drill the fly wheel? No ta




Why?
Clamp both fly's together and re drill? where's the problem?
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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24th Sep 08 at 19:25   View User's Profile U2U Member Reply With Quote

Problem being you weakening/cracking it by drilling holes,and it then smashes in bits at 7000rpm.

NICE
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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24th Sep 08 at 22:24   View User's Profile U2U Member Reply With Quote

You would know why if you've seen pics of a car that a fly wheels gone pete tong
adam.d
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Registered: 7th Nov 07
Location: hartlepool Drives: corsa LET
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25th Sep 08 at 08:08   View User's Profile U2U Member Reply With Quote

I've seen them pics mate, most were of homemade lightened flys tho. Doing this is no different than redrilling 5 stud discs to 4 stud, cutting and re welding driveshafts, ect. All of which are perfectly safe if done correctly
Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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25th Sep 08 at 10:38   View User's Profile U2U Member Reply With Quote

goin off subject here abit, No the f13 box doesnt bolt straight to a c20xe and operate, theres ur answer
sxi-kid
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Registered: 2nd Feb 08
Location: Greater Manchester
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25th Sep 08 at 19:16   View User's Profile U2U Member Reply With Quote

will a 1.2 16v gearbox fit a nova gsi 8 valve?
andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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25th Sep 08 at 19:32   View User's Profile U2U Member Reply With Quote

if its a f10, no
Limecat
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Registered: 25th Jun 05
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25th Sep 08 at 23:46   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Torsa g
quote:
Originally posted by LETGSI16V
It will fit, the holes line up, you would need a 'custom' flywheel set-up though.

Think you also need to tweak a part of the inner casing?

[Edited on 22-09-2008 by LETGSI16V]



So basically an f13 wont fit.


An f13 with modification would but thats not what hes asking, i think you could get anything to fit anything if u had the money..




Where has he stated 'without modification' as it isn't in the posts, nor does he say 'with modification'.



quote:
Originally posted by Vaux Lad
Problem being you weakening/cracking it by drilling holes,and it then smashes in bits at 7000rpm.

NICE


Rubbish.

If doing it properly you would do it with a lathe to ensure the holes are drilled on the correct PCD. It would not cause a flywheel to suddenly explode, a circular hole spreads force as it doesn't congregate at one point, like when people remove too much material from a flywheel or don't radius it (increases likelihood of failure) or take too much off to the extent they make it that thin that it cannot contain the rotating mass of the outer flywheel.
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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26th Sep 08 at 08:26   View User's Profile U2U Member Reply With Quote

You wouldnt do it on a lathe imo would need to be done on a miller with a dividing head attachment, or a vertical cnc miller
Torsa g
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Registered: 20th Sep 07
Location: Tamworth. Rides: An OSTRIDGE
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26th Sep 08 at 08:54   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by LETGSI16V
quote:
Originally posted by Torsa g
quote:
Originally posted by LETGSI16V
It will fit, the holes line up, you would need a 'custom' flywheel set-up though.

Think you also need to tweak a part of the inner casing?

[Edited on 22-09-2008 by LETGSI16V]



So basically an f13 wont fit.


An f13 with modification would but thats not what hes asking, i think you could get anything to fit anything if u had the money..




Where has he stated 'without modification' as it isn't in the posts, nor does he say 'with modification'.



quote:
Originally posted by Vaux Lad
Problem being you weakening/cracking it by drilling holes,and it then smashes in bits at 7000rpm.

NICE


Rubbish.

If doing it properly you would do it with a lathe to ensure the holes are drilled on the correct PCD. It would not cause a flywheel to suddenly explode, a circular hole spreads force as it doesn't congregate at one point, like when people remove too much material from a flywheel or don't radius it (increases likelihood of failure) or take too much off to the extent they make it that thin that it cannot contain the rotating mass of the outer flywheel.


contradicted urself abit there, if you can read he asks does a f13 box fit to a c20xe nothing else, so yes basically he is saying with no modification else he would of put that, so if your gona help someone answer the question correctly, praps u need to go back to school
Limecat
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Registered: 25th Jun 05
Location: The Internet
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26th Sep 08 at 09:36   View User's Profile U2U Member Reply With Quote

He clearly asks why it wouldn't fit, so that to anyone who has attended school would deduce that he wants to know the reasons why - perhaps he is willing to modify it afterall eh?

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