Twiggy
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Registered: 15th Oct 04
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Mine speedo is fine and i hit 125ish on a hill (going down before the comments start!!!:lol
I did 140 in me vtr though!!!
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Matt H
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Registered: 11th Sep 01
Location: South Yorkshire
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quote:
Originally posted by Laura_1.416v
my 1.4 16v has hit 125, was about hitting the limiter, wouldnt have got to 130 but as far as we know the speedo isn't out.
You not read the rest of the thread?
All speedo's are probably out
Even in mine it is very doubtfull that it is a true reading. Although I have been past the 130 mark on my clocks
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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quote:
Originally posted by Laura_1.416v
my 1.4 16v has hit 125, was about hitting the limiter, wouldnt have got to 130 but as far as we know the speedo isn't out.
At those speeds, it is fair to say that your speedo is inaccurate, you were probably doing about 110.
My 1.6 Sport used to get to about 118-119 and stop dead, just like it says from the factory, either than that or it was knackered and i was only doing 105 
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
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quote:
Originally posted by K11 NNL
digital speedos and not speedo cables like older corsas...so no matter how big or small your wheels the digital speedo will still be accurate.
Incorrect I'm afraid. The electronic speedos have a sender in the gearbox which turns the final drive speed in to pulses which the dash then converts in to your speedo display. The digital to analogue conversion is inaccurate, as well as the gearing of the sender.
Cable drive speedos just mechnically bring a geared drive to the clocks which then magnetically attracts the needle against the force of a retaining spring. This method is also inaccurate due to the tolerances and the physics of it all, and the fact that Rolex don't make speedos.
Neither method is particularly accurate as they both rely on gearing and tolerances both within the mechanical and electronic conversions of the signals, plus legally they CANNOT under-read, but may over-read by up to 10%. This is designed in to the car, not just some scientic side-effect.
They also of course take their information from the box, and therefore wheel speed will not affect your reading on the dash, but will affect actual speed travelled.
There is also the issue that some cars cannot go the speeds which are claimed. The engine can only go a certain speed (rev limiter) and at that rev limit the gearing of the car and wheel size will dictate how fast you travel - assuming you can overcome air resistance. Some of the speeds quoted here are actually physically impossible without huge wheels, non-standard or mis-matched gearing (ie. the wrong box and no acceleration) and a raised rev limit.
Thats assuming you have enough power to get there.
[Edited on 02-03-2005 by Ian]
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Lisa
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Registered: 6th Apr 00
Location: Euxton, Lancashire
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no chance laurence hit 140 at 6000rpm in corsa last week and that went straight to 140, he had a mate in who has a 600 cc bandit and he said he could not believe how quick it got there , probebly 130 in real terms but still had another500 rpm or more to go
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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quote:
Originally posted by vauxgirl
no chance laurence hit 140 at 6000rpm in corsa last week and that went straight to 140, he had a mate in who has a 600 cc bandit and he said he could not believe how quick it got there , probebly 130 in real terms but still had another500 rpm or more to go
Who the hell is Laurence?
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Lisa
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Registered: 6th Apr 00
Location: Euxton, Lancashire
User status: Offline
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p16 vlv
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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he has a 2.0 though?
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Lisa
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Registered: 6th Apr 00
Location: Euxton, Lancashire
User status: Offline
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yep and there is no way a 1.4 will do nowhere near 130
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Robbie
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Registered: 7th Feb 01
Location: Halifax
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i once had 137 out of my old corsa Gsi and posted an ad on here,that was about 4 years ago,i had a car full and was coming back from Manchester heading towards Leeds at the top of Saddleworth Moor(its then down hill for about 3 miles)
To put the record straight i got a mate in a astra GTE to follow me up there and i did it again about 3 weeks later,i was flat out this time with 135 on the clock got him to take over me and his top recorded speed during take over was 128,so i was doing about 120
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Lisa
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Registered: 6th Apr 00
Location: Euxton, Lancashire
User status: Offline
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120 is not 130 thats what im trying to explain the my corsa should do a genuine 137 which is still quick.
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Lee 16v
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Registered: 25th Jun 04
Location: Maidstone Drives: Corsa 2.0 16v
User status: Offline
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i had 110mph on my clock, and my mate was next to me in his VTR and his clock said 120 and we were doing the exact same speed... confusing how inaccurate speedo's can be
[Edited on 03-03-2005 by Lee 16v]
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Jambo
Member
Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline
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PMSL @ this thread
There are so many deluded people out there.
My 1.4 did 112mph. Speedo indicated. On more than one occasion. on different roads in different conditions and with different wheels.
Thus proving the top speed of a 1.4 16v sport is 112mph.
My 2.0 turbo does around 135mph. As you can see i have driven both. There is no fucking way a sport could acheive those speeds
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dave17
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Registered: 3rd Sep 02
Location: Greater London
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well while racing paul j on my way to max live, i hit an INDICATED 122mph in my 1.4 16v. that was standard wheels too. im not gettin into a whole discussion about it. thats wot my speedo said, is it correct? and do i care? no1 knows their TRUE speed until u get GPS involved.
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Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline
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ok.
But gearboxes and aerodynamics say 130mph in a 1398cc car weiging 960 (?) with 90 bhp is less than likely.
By a LONG way.
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dave17
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Registered: 3rd Sep 02
Location: Greater London
User status: Offline
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i agree, 130mph is jus pish
my car sounded like it was bout to blow up
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
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to be able to reach 130-140+, power needed starts to get exponential, hence why you need A LOT more power to get from 120mph to 130mph, simply because of increased wind resistance and rolling resistance.
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Paul_J
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Registered: 6th Jun 02
Location: London
User status: Offline
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quote:
Originally posted by Dave17
well while racing paul j on my way to max live, i hit an INDICATED 122mph in my 1.4 16v. that was standard wheels too. im not gettin into a whole discussion about it. thats wot my speedo said, is it correct? and do i care? no1 knows their TRUE speed until u get GPS involved.
well I had about 115 mph on the clocks on mine as you were pulling away lol and I'd guess I wasn't doing that speed  (was quite glad you did pull off into the services, as I wouldn't of been able to keep up haha)...
Basically I never realised how inacurate speedo's are until I got my GPS road angel 2.
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mav
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Registered: 19th Jun 01
Location: Scotland
User status: Offline
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I've had 150 indicated in my 2.0 ..even though clocks dn't go that far
what a load of pish this thread is..............
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Dan B
Member
Registered: 25th Feb 01
User status: Offline
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quote:
Originally posted by FlamingCorsa
yea it my do if he gets to 110 then drives it off a really big cliff!!!!!!!!! may just get to 130 then
Since terminal velocity (the maximum speed a falling body will achieve without an external force (apart from gravity) acting upon it - the engine doesn't count, because the wheels wouldn't be touching the floor) is 120mph, not even that would get it to 130mph! 
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Stu
Member
Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
User status: Offline
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quote:
Originally posted by broster
did a poo before i went out in my 1.4 8v.....
When I changed the dial faces on my car, I also took one of these pictures! Car at the time was a 1.5TD (later a 2.1 16v on TS's) but I just put the needles on to show it off the clock at 4500rpm!
Suspect picture that is! No blur and no picture of the road!
This is more convincing!
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3CorsaMeal
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Registered: 11th Apr 02
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people add a few mph on here and there,
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Darren
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Registered: 21st Apr 02
Location: Hadleigh, Suffolk
User status: Offline
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quote:
Originally posted by REDSPORT
Mine speedo is fine and i hit 125ish on a hill (going down before the comments start!!!:lol
I did 140 in me vtr though!!!
140 in a vtr?!
My corsa only gets up to around 135 
Somethings wrong somewhere me thinks
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
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Road Angel group buy anyone
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Jay_SXi
Member
Registered: 18th Apr 02
Location: Greater Manchester
User status: Offline
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quote:
Originally posted by ainsley_brader
quote:
Originally posted by Jay_SXi
any1 idea what the top speed for Corsa C 1.2 16v...cheers
What year 106mph in 2001
New Facelift...53 (2004)
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