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Author Lap Times: How much is gained from more power
Jake
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29th Sep 11 at 14:03   View User's Profile U2U Member Reply With Quote

i would have thought a more accurate way to sort all this out is to use the same driver on the same track on the same day with both cars
Graham88
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29th Sep 11 at 14:05   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by chris_uk
"how much is gained from more power" certainly seems like a question to me..

im having a hard time because like graham said it seems obvious.

This is what I mean, I just don't understand the point you are trying to make.

You want to know how much extra power you need to make up 1 second, 2 seconds, 3 seconds, etc?

Was joking about the balls thing anyway, you have some serious cajones. but I would say a couple less kerbs might help you but I have never driven Knockhill so hard to say.
AK
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29th Sep 11 at 14:07   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Jake
i would have thought a more accurate way to sort all this out is to use the same driver on the same track on the same day with both cars


OH FOR FUCK SAKE

This wasnt a test.....

This simple (but very fucking confusing for some) comparison was made after the laps were done..... the laps were not done to make the fucking comparison


The fucking graphs are simple enough - DELTA-T = TIME DIFFERENCE, look at the the difference in lap time get bigger/smaller.... whooooo
AK
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29th Sep 11 at 14:08   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Graham88
quote:
Originally posted by chris_uk
"how much is gained from more power" certainly seems like a question to me..

im having a hard time because like graham said it seems obvious.

This is what I mean, I just don't understand the point you are trying to make.

You want to know how much extra power you need to make up 1 second, 2 seconds, 3 seconds, etc?




no - i'm showing how much difference it makes
DannyB
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29th Sep 11 at 14:11   View Garage View User's Profile U2U Member Reply With Quote

Not read most of the replies as I got bored after 3CM's first comments so...


How well can fee or you get the power down in the Skyline on a good lap? for example, the impreza will use all it's power and very well, you may not be able to get everything out of the Skyline in certain parts of the track. That goes for any high powered car really though. Them XR2's at KH do great laps for what they are don't they, as the drivers know the track and use every bit of power. Alot quicker than many higher powered cars. Even Davey in his Fez, it's not mega power but the car is set up perfect and he's a very good driver and uses all of his power which is sub 200 isnt it, shows a lot of cars up.
Graham88
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29th Sep 11 at 14:15   View User's Profile U2U Member Reply With Quote

Yes but again Danny, to me that's just obvious, so I don't understand any of the statements being made in here

Maybe I'm just trying to understand something I already understand thus confusing myself
AK
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29th Sep 11 at 14:17   View User's Profile U2U Member Reply With Quote

very true danny but not really trying to suggest anything along those lines.

I'm making a few rough assumptions in that Fee and I both know the track well - so treat us as the same driver... both cars can make good use of their power.

I think dave does 63's in the fiesta but no idea on if he's quick(er) round corners or straights etc... thats why i've made this comparison. To simply show (roughly) that having a more powerfull (2 examples of 4wd cars used) car (driven just as well - very similar corner speeds) can simply mean 4.5secs off a lap time just like that.

I know there are many variables not taken into account.

[Edited on 29-09-2011 by AK]
DannyB
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29th Sep 11 at 14:17   View Garage View User's Profile U2U Member Reply With Quote

My reply above wasn't a reply to anyone Graham, just asking a question.

[Edited on 29-09-2011 by DannyB]
DannyB
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29th Sep 11 at 14:20   View Garage View User's Profile U2U Member Reply With Quote

Oh yeah I know that bit, you're almost guarenteed to be faster in a car with 250+ more bhp, but again that does depend on how the car is set up and how well you know the track, KH being your home track you and Fee could probably do it blind folded where if I jumped in to both cars I would get no where near that times in either car.
AK
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29th Sep 11 at 14:24   View User's Profile U2U Member Reply With Quote



still not what i'm getting at......

OK.....

try this...

Ignore what has been posted earlier.

How much quicker round KH do you think a 570bhp GTR would be compared to 300bhp Impreza? If both cars were driven at roughly the same pace round the corners......

i.e How much difference does POWER make to a lap time!
Graham88
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29th Sep 11 at 14:25   View User's Profile U2U Member Reply With Quote

4.5 seconds?
AK
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29th Sep 11 at 14:26   View User's Profile U2U Member Reply With Quote

yes!
John
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29th Sep 11 at 14:27   View User's Profile U2U Member Reply With Quote

From the figures in here, 60bhp per second.

That's not how it works in the real world though so it's a completely pointless comparison.
DannyB
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29th Sep 11 at 14:30   View Garage View User's Profile U2U Member Reply With Quote

I haven't read most of the thread Adam, just read your first post, what I mentioned above didn't have anything to do with your comment really. I fully understand the point you're trying to get across.
AK
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29th Sep 11 at 14:31   View User's Profile U2U Member Reply With Quote

John - I think you're trying too hard and missing how basic this comparison is.



i'm not stating that 60bhp gives you 1 second more a lap for fuck sake.
John
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29th Sep 11 at 14:35   View User's Profile U2U Member Reply With Quote

That's exactly the question you are asking.

How much quicker does more power make you.
AK
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29th Sep 11 at 14:37   View User's Profile U2U Member Reply With Quote

i think my lap in the comparison was in this vid

https://www.youtube.com/watch?v=wYyJ_BnoMoE

but this is a slightly quicker one (in places)

https://www.youtube.com/watch?v=SadsKXblFb0

This is Fee's lap for the data (on gripper tyres) _ I think i had to drive more flamboyantly to get round the corners just as quick

https://www.youtube.com/watch?v=sNloskvR1Bw

or

https://www.youtube.com/watch?v=pKNvCvfhRXQ

AK
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29th Sep 11 at 14:38   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by John
That's exactly the question you are asking.

How much quicker does more power make you.


no
chris_uk
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29th Sep 11 at 14:39   View Garage View User's Profile U2U Member Reply With Quote

i think im having a problem because i know there are more variables at work than just bhp which woud equal the higher terminal speed down the straight.

weight
tyres
torque
gear ratios
aero settings
at what place in the power band the power comes in etc

just out of interest what were fees top speeds at anglesey? (the ta version of the track)

AK
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29th Sep 11 at 14:41   View User's Profile U2U Member Reply With Quote

just a sec
chris_uk
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29th Sep 11 at 14:43   View Garage View User's Profile U2U Member Reply With Quote

faster man!! lol ive only got 5% battery life left lol.
chris_uk
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29th Sep 11 at 14:43   View Garage View User's Profile U2U Member Reply With Quote

4% !! lol
adiohead
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29th Sep 11 at 14:44   View User's Profile U2U Member Reply With Quote

I've gotta go home soon, please hurry.
AK
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29th Sep 11 at 14:45   View User's Profile U2U Member Reply With Quote

Her data from Anglesey Coastal......

She did a 1:19.434 in the final from memory, theoretical best of 1:17.73 (she cannot get on with the car and the P Zeros... so no consistancy)

VMAX - 132mph

Any comparisons with Jimmys VX would be interesting but pretty pointless in the context of my orig post as they will not have been doing similar corner speeds.
AK
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29th Sep 11 at 14:46   View User's Profile U2U Member Reply With Quote

... from memory

I wrote '1:19 from memory' then looked it up and changed it

should have taken out the from memory

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