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Author 1.6 sport owners
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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29th Mar 07 at 23:18   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Robin
3.74:1

Which means, a 100% standard car, 6750rpm limit, IF it had the power to get to the rev limiter in 5th (which it doesn't) would do 136.24mph, according to the gear ratios.

7200rpm and enough power to reach the rev limiter with 195/45 15s equates to 141.81mph

my GPS wasn't far off that, but not quite 141mph.


F15CR yes?

So, in theory, mine should be capable of 145mph when mapped to 7,500rpm?
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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29th Mar 07 at 23:26   View Garage View User's Profile U2U Member Reply With Quote
The gear ratios would allow the car to reach 143mph

BUT, that's not taking tyre pressures, wind speed, fuel load, frontal area, drag coefficient or any other things.

Mine SHOULD have done 142mph, but it wouldn't, there was nothing after about 8/9mph less than that.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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29th Mar 07 at 23:28   View User's Profile U2U Member Reply With Quote
Just over 1mph with 300 more rpm?

Aslong it's capable of 140mph, I'm VERY happy
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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29th Mar 07 at 23:30   View Garage View User's Profile U2U Member Reply With Quote
Sorry, I pressed the wrong key 144.

That's only theoretical though, like I say, mine wouldn't go a touch over 134, not a chance.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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29th Mar 07 at 23:32   View User's Profile U2U Member Reply With Quote
Is this your 1.4 spec, or your 1.6?

It was running the same bhp/ton as mine, if not more, was it not? I'm sure yours would of

Mine easily pulls to the limiter in 5th..

So, when mine is 150bhp after a map, I would thought I could gain an extra 7mph quite easily...

[Edited on 29-03-2007 by Monster]
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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29th Mar 07 at 23:40   View User's Profile U2U Member Reply With Quote
Jenko-Sure the ecu hasn't had the limiter raised?

Anyone know what x16 rev limit is? 6750?
If so thats about bang on 100mph real speed, on 14s, with a f15cr, 3.74 fd. In 4th.


At 7500rpm, in 5th, you wouldn't be far off 150mph(148) As previously mentioned tho, aerodynamics come into play at those kind of speeds.



[Edited on 29-03-2007 by Vaux Lad]
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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29th Mar 07 at 23:41   View Garage View User's Profile U2U Member Reply With Quote
1.6

I'm talking about 'true' speed BTW, not indicated
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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29th Mar 07 at 23:43   View User's Profile U2U Member Reply With Quote
I didn't take that into consideration Robin

And Vaux lad, yes the Limit on a standard X16xe is 6750rpm.
VegasPhil
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Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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29th Mar 07 at 23:50   View Garage View User's Profile U2U Member Reply With Quote
Interesting read

Corsa 2.0 16v Vegas - Sold
Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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30th Mar 07 at 00:11   View User's Profile U2U Member Reply With Quote
When my Astra went on a RR. It did 120 in 4th. But thats coz no weight, drag etc...

(oh and it has an F23 box)
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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30th Mar 07 at 00:22   View Garage View User's Profile U2U Member Reply With Quote
Assuming your rev limiter is at 5700, you'd need a 3.42:1 FD
Steve X16XE
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30th Mar 07 at 00:25   View User's Profile U2U Member Reply With Quote
Mine no chance. It sits a 5k and will not budge!
Robin
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30th Mar 07 at 00:27   View Garage View User's Profile U2U Member Reply With Quote
Which it's not, it's 3.74

so, with your tyres and a 5k rev limit, the gearing won't allow for more than 117.41 in fifth, 97.09 in 4th, that's with no air resistance or anything
Steve X16XE
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30th Mar 07 at 00:32   View User's Profile U2U Member Reply With Quote
:dunno: I asked the guy doing it what gear he used. He said 4th. I then asked how fast it got up to. He said about 120. But X, Y and Z......

I've had 120 on my RA n my speedo said 125. Then with out my RA i've had 130 (on the speedo). About 125.
Steve X16XE
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Location: Barnsley, South Yorkshire
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30th Mar 07 at 00:33   View User's Profile U2U Member Reply With Quote
Oh and that was in 5th and at just over 4k. Maybe 4250.
gianluigi
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Registered: 9th Mar 05
Location: Ipswich, Suffolk
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30th Mar 07 at 08:18   View User's Profile U2U Member Reply With Quote
ive never hit the limiter in 4th....too scary

might give it a go though, see what happens
Rachel H
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Registered: 12th Nov 03
Location: Berks
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30th Mar 07 at 08:42   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by gianluigi
ive never hit the limiter in 4th....too scary

might give it a go though, see what happens


You will go back to the future.
gianluigi
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Registered: 9th Mar 05
Location: Ipswich, Suffolk
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30th Mar 07 at 08:46   View User's Profile U2U Member Reply With Quote
but im happy in the present tbh. Rather than going out tonight in my car and hitting the limiter in 4th gear, i might just sit in a fish tank
Jenko_Sport
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Registered: 25th May 06
Location: Stoke-on-Trent
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30th Mar 07 at 18:23   View User's Profile U2U Member Reply With Quote
Hits an idecated 110 in forth

And my speedo is acturate to 125 as thats the highest i took it when had satnav in
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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30th Mar 07 at 18:29   View Garage View User's Profile U2U Member Reply With Quote
with 14s on?
Jenko_Sport
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Registered: 25th May 06
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30th Mar 07 at 18:30   View User's Profile U2U Member Reply With Quote
Yep
Robin
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30th Mar 07 at 18:31   View Garage View User's Profile U2U Member Reply With Quote
should be an indicated 108, so that's about right, that's not a true 108 though, that's about 100.
Jenko_Sport
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Registered: 25th May 06
Location: Stoke-on-Trent
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30th Mar 07 at 18:32   View User's Profile U2U Member Reply With Quote
Well if satnavs are acurtae my speedo is spot on

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