Back From Brunters (Added Videos and Pictures page 4) Maybe Grudge Match Coming!!
#362
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Or Chris Harris Autocar videos
It does rock having a girlfriend into cars!
but it sucks that she knows more than me about them!
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oooh and I am now a huge Family Guy fan! that programme is genius!
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It does rock having a girlfriend into cars!
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oooh and I am now a huge Family Guy fan! that programme is genius!
#364
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maybe thats me, simple chap!
#365
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Steven_RW second run almost certainly was geared too long & hence past 'optimum' this will make a big difference to whats achieved. Ive found over many runs that its best to slightly under-gear because the momentum will pull it past peak Power & of course give better accleration .
As for Dave he asked me to say what his car would be doing at 8K on certain gearing, I said 200mph & he was happy. If it had been my car I would have looked at the Power & thought that aint capable of more than 196mph because thats what the maths say & geared for 196 at 8k & im sure it would have pulled close to that 'optimum' but hey!! what do I know, experts abound on this thread.
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#366
PassionFord Post Troll
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I talk about optimum as getting the gearing 'spot bollix' because thats the most important thing. My cars blatted up & down Brunters more than most & unless you have a cross wind ive noticed no real difference in speed obtained.
Steven_RW second run almost certainly was geared too long & hence past 'optimum' this will make a big difference to whats achieved. Ive found over many runs that its best to slightly under-gear because the momentum will pull it past peak Power & of course give better accleration .
As for Dave he asked me to say what his car would be doing at 8K on certain gearing, I said 200mph & he was happy. If it had been my car I would have looked at the Power & thought that aint capable of more than 196mph because thats what the maths say & geared for 196 at 8k & im sure it would have pulled close to that 'optimum' but hey!! what do I know, experts abound on this thread.
.
Steven_RW second run almost certainly was geared too long & hence past 'optimum' this will make a big difference to whats achieved. Ive found over many runs that its best to slightly under-gear because the momentum will pull it past peak Power & of course give better accleration .
As for Dave he asked me to say what his car would be doing at 8K on certain gearing, I said 200mph & he was happy. If it had been my car I would have looked at the Power & thought that aint capable of more than 196mph because thats what the maths say & geared for 196 at 8k & im sure it would have pulled close to that 'optimum' but hey!! what do I know, experts abound on this thread.
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#373
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I talk about optimum as getting the gearing 'spot bollix' because thats the most important thing. My cars blatted up & down Brunters more than most & unless you have a cross wind ive noticed no real difference in speed obtained.
Steven_RW second run almost certainly was geared too long & hence past 'optimum' this will make a big difference to whats achieved. Ive found over many runs that its best to slightly under-gear because the momentum will pull it past peak Power & of course give better accleration .
As for Dave he asked me to say what his car would be doing at 8K on certain gearing, I said 200mph & he was happy. If it had been my car I would have looked at the Power & thought that aint capable of more than 196mph because thats what the maths say & geared for 196 at 8k & im sure it would have pulled close to that 'optimum' but hey!! what do I know, experts abound on this thread.
.
Steven_RW second run almost certainly was geared too long & hence past 'optimum' this will make a big difference to whats achieved. Ive found over many runs that its best to slightly under-gear because the momentum will pull it past peak Power & of course give better accleration .
As for Dave he asked me to say what his car would be doing at 8K on certain gearing, I said 200mph & he was happy. If it had been my car I would have looked at the Power & thought that aint capable of more than 196mph because thats what the maths say & geared for 196 at 8k & im sure it would have pulled close to that 'optimum' but hey!! what do I know, experts abound on this thread.
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Interesting
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RW
#374
Happily retired
#375
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I'm not sure what you mean? I am also not sure why you feel you need to respectfully point out to me that you think you have come closer to reaching terminal velocity than others? I also don't know why you think you have? Plenty people will have hit terminal velocity in a car before, I know I have. Foots to the board and it just is not accelerating any more, mile after mile, still no more acceleration. Force of the engine has been equalled by force of drag.
Anyway I would have thought you would rather have answered the question in your usual fashion than spin me a P.R. line.
In a plane, going into a 50 mph headwind reduces your ground speed by 50 mph. I was expecting a similar outcome in a car. Perhaps the fact you are in touch with the ground reduces the overall impact. However, why does a car stop accelerating? It must be that engine force = drag forces (of course you can optimise this by matching gearing and power bands). If you have a 10 mph headwind, surely drag forces are higher than having no headwind, therefore a car will ultimately meet the point where drag forces = engine force at a lower speed? I can appreciate that in the distance you are using, it might not make much difference to the speed you achieve, however I therefore stand that you must not be hitting terminal velocity, or maybe you have not run in high head wind conditions?
Can I respectfully point you in the direction of answering the question rather than typing up any further PR?
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RW
Last edited by Steven_RW; 10-04-2009 at 06:33 PM.
#377
Redumbdancy
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Without reading all ten pages I agree with what Steven_RW is saying, seems like basic standard grade physics to me: Newtons 1st and 2nd laws. I can't see why a headwind would NOT have an effect on the car's top speed.
#378
Too many posts.. I need a life!!
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Because Rod is so far up his own arse that he doesn't believe simple physics has any effect on him? I am sure his Saph could fly if it just had wings....
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#379
Happily retired
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Of course i have an excuse i had no education like what you lads have got, Physics whats that all about, in the days of chalk & slate we were simply given tips on hunting wild animals
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#380
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It is rather laughable when you are allowed to be so incredibly choosy over other peoples dyno figures, who has run with an alternator and a PAS pump Vs who has not, however are surprised when someone checks the accuracy of one of your own statements. Be you old or young, that can't be a surprise...
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