blundey
Member
Registered: 25th May 04
Location: Flitwick, Bedfordshire
User status: Offline
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Hey guys. What are the advantages of upgrading the gear box on a corsa 1.2?? Is it worth it? How about clutch? whats the point?
Whats involved in upping the rev limiter?
I need answers to these cquestions because 7000rpm is no way near enough.
Thanks
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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The ratios are chosen to work best with the power available. Change the engine first.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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quote:
Originally posted by blundey
Hey guys. What are the advantages of upgrading the gear box on a corsa 1.2?? Is it worth it? How about clutch? whats the point?
Whats involved in upping the rev limiter?
I need answers to these cquestions because 7000rpm is no way near enough.
Thanks
Any more and it will blow up for sure.
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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how many gears does it have? 4 or 5
i have a 5 speed that will fit if you want it
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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quote:
Originally posted by Adam-D
how many gears does it have? 4 or 5
i have a 5 speed that will fit if you want it
Wont make it faster though! its the same gearbox with same ratios but another gear added
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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No advantage of upgrading the gearbox on a 1.2, unless you want to pay over a grand for a quaife gearset to save a few bhp through the transmission losses.
No point in raising the rev limit unless you have the mods to give power up there.
The gearbox should be fine with increased revs, the clutch definatly will be, its torque that kills these things, not revs.
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Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
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why bother? because if you have a 4 speed its revving its nuts off on the motorway
but if you have 5 it isnt
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blundey
Member
Registered: 25th May 04
Location: Flitwick, Bedfordshire
User status: Offline
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Well without any critisism from you all. Here is the problem.
No insurance companys will touch me after i wrote off 6g's worth of car. So its very unpracticle for my to get a faster engine that what i alreaady have. So I added some Nitrous to the mix with 35bhp jets.
Obviously the car is still slow and a 1.2 but with the nitrous it does change up through the gears at an incredible rate. So im neededing to buy a new clutch and somehow up my rev limiter.
I dont want to hear crap about it blowing up my engine. Ive read alot into it researched about how much power i can add "safely". If anyone disagree's please go and read all the info they can at www.nitrous.info.
So whats ur thoughts guys...how can i go about upping my rev limiter? what new clutch to go for?
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Stu_22
Member
Registered: 25th Mar 02
Location: Luton
User status: Offline
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Suppper chip a quick fix
or the unlimate bit of a waste on a 1.2 a fully mapable ECU
http://www.emeraldm3d.com/
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John
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Registered: 30th Jun 03
User status: Offline
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I wrote off 5.5g's worth of car and i'm 19 in a shitty postcode and its made a negligible difference to my insurance.
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Red_SXi
Member
Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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I still wouldn't bother upping the limiter unless you want to hear it go bang.
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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Adding power is different to adding revs.
You need some sort of chip as the rev limit is set by the ecu.
Is your current clutch shot or do you just want to uprate it?
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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quote:
Originally posted by Adam-D
why bother? because if you have a 4 speed its revving its nuts off on the motorway
but if you have 5 it isnt
You go no faster in 5th than in 4th with this gearbox on the 1.2, but granted, revs will be lower.
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blundey
Member
Registered: 25th May 04
Location: Flitwick, Bedfordshire
User status: Offline
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It a corsa C so it has 5 gears already. Thanks for your input guys.
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blundey
Member
Registered: 25th May 04
Location: Flitwick, Bedfordshire
User status: Offline
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x8john, when you make a 6 grand claim on your own vechile and the person you crashed into also claims....trust me its hardly negligable.
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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quote:
Originally posted by Cybermonkey24
quote:
Originally posted by Adam-D
why bother? because if you have a 4 speed its revving its nuts off on the motorway
but if you have 5 it isnt
You go no faster in 5th than in 4th with this gearbox on the 1.2, but granted, revs will be lower.
yeah wont be faster but its esyer on the ears when the engine isnt sitting @ 5k revs 
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