Would you guys say this is quick?

jonarob said:
I can only tell you from 30-120 in an M5, in fourth gear takes nearly 25 seconds. Hang on!

And from standing start, the Gallardo up to 120 takes 14 seconds. Not forgetting it's got the traction from an AWD system.
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A standing start is significantly different to having a rolling start at 30mph.

That figure of the M5 in 4th is largely irrelevent, especially if its the new E60, 4th would be seriously bogged down in this car at 30mph.

I'd maintain that its fast, but its not absolutely blisteringly fast.
 
HI there

Just to explain the strange method involved.

This was done for datalogging purposes. Best method of datalogging is to cruise on 10% throttle at 2000rpm in 4th which is approx 45ish mph. Then to give it wide open throttle without letting off upto 6400/6500rpm, then let off and stop recording. Obviously thats for when your on a dyno, when it comes to the road 4th will result in far too high speeds as 6500rpm in 4th is 160mph, that is basically what most cars do in 5th/6th gears. The Mustang has incredibly tall gearing. Hence why 3rd is more advisable for road/track, its not quite as accurate but is fine, next stage is 4th on the dyno along with some A/F readings from the dyno to get the tune finalised.

From the datalogging files it shows where too 1000th of a second where 100% throttle was applied, at what RPM and when throttle was eased off. Also a whole host of other things was recorded such as MAF voltages, load, fuel trims long and short, spark etc. This is to fine tune the car more.

The MAF will keep a good mixture upto 5.0v and at the moment its peaking at 4.7v at 6500rpm and 4.6v at 6000rpm. With some more investigation and checking of other parameters it appears the car has quite a bit more tuning potential in it yet with the bounds of been perfectly safe.
At the moment the car is running rich and conservative, but now the fine tuning begins. :D

So running conservative tune the car is propelling itself from 2000rpm upto 6500rpm in 3rd in basically 10.5s (30-120mph not indicated but real speed). With proper tuning and more efficient A/F ratio sub 10s should be easily doable.

For your information remember the cars gearing is extremely tall and it only has 5 gears:-
1st = 45-50mph (never tried)
2nd = 80mph
3rd = 120mph
4th = 160mph
5th = 240mph (Overdrive gear, realistic top-end is 180-190mph at which point the bonnet flies off :D )

Those are all based on revving upto 6500rpm.

If the same was to be done using 2nd/3rd I can reckon a good 2-3s would come of that time.

Now think of an M5 its 4th is most probably the equal to my 3rd in terms of gearing. ;)

P.S. That was two up and a full tank of fuel. ;)
 
Bear said:
I reckon my car can do that and it certainly isnt very very quick.
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I was making a contrast, his car is very very quick that is. Both cars doing the same 3rd gear 30mph start.

What do you drive?
 
Hi there

If watching the speedo it seems that for every 1s past 60mph the speedo goes up by a further 10mph.

I shall investigate the results more to see if I can extract some information like 60-100mph times as I'd imagine thats more widely used and bettered suited to my 3rd gear. As if it was not for datalogging purposes then 2nd would have been used to her moving a lot quicker. :)

P.S. For comparison my 3000GT (350BHP) did 50mph - 110mph in 8s using 3rd gear. If that has been from 30mph-120mph I suspect it would be more like 13s region. Less power but better aero-dynamics and traction.
 
As a comparison. Dont know if its through the gears, but guess it would be.

30130a.gif
 
Bear said:
As a comparison. Dont know if its through the gears, but guess it would be.

30130a.gif
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Well its a nice chart but nowhere does it tell you what power the cars are running.

Getting mine upto 130mph would take changing upto 4th, a nice quick change so say doable in 1s which I know is quite slow for a change as some can do them incredibly quickly. Now the weigh the car pulls does not die off at all so to go that little extra 10mph I'd say 2-3s would be conservative. So even with been conservative mine would still do that in 13-14s and thats based form starting in 3rd too, put 2nd into the equation and I reckon 12s area is maybe posssible (30-130mph). :)
 
Gibbo said:
Well its a nice chart but nowhere does it tell you what power the cars are running.

Getting mine upto 130mph would take changing upto 4th, a nice quick change so say doable in 1s which I know is quite slow for a change as some can do them incredibly quickly. Now the weigh the car pulls does not die off at all so to go that little extra 10mph I'd say 2-3s would be conservative. So even with been conservative mine would still do that in 13-14s (30-130mph). :)
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Aye realised it when I posted it :o . Im willing to bet they went through the gears aswell. IIRC Norris was running around 800bhp
 
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Bear said:
Aye realised it when I posted it :o . Im willing to bet they went through the gears aswell. IIRC Norris was running around 800bhp
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Well it shows with the time. :D :D Mentally fast, but no doubt safe with it been AWD. :)

I suspect going through the gears, 2nd, 3rd, 4th from 30-130mph with perfect gear changes hopefully 12s or less possible. :)
 
Bear said:
I reckon my car can do that and it certainly isnt very very quick.
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I guess you mean through the gears, though? My car is so far off boost at neutral throttle around 30mph in 3rd it would take forever just to get to 3000 rpm. Plus we'd need 4th to hit 120.
 
JTrickle said:
I guess you mean through the gears, though? My car is so far off boost at neutral throttle around 30mph in 3rd it would take forever just to get to 3000 rpm. Plus we'd need 4th to hit 120.
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Nah he said 30-101mph on his mates BMW in 3rd
 
jonarob said:
I can only tell you from 30-120 in an M5, in fourth gear takes nearly 25 seconds. Hang on!

edit: yeah, come up with some better measurements!

In-gear times, in third for a Gallardo are as follows:

20-40 - 2.5
30-50 - 2.0
40-60 - 1.9
50-70 - 2.0
60-80 - 2.2

And from standing start, the Gallardo up to 120 takes 14 seconds. Not forgetting it's got the traction from an AWD system.
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Hi there

Just looked through my datalog file to work out what mine is doing.
Remember my results are based from the I was already moving at wide open throttle which will obviously give my results the advantage unless the Gallardo's results were gained in a similar fashion:-

30-50mph = 1.80s
40-60mph = 2.45s
50-70mph = 2.66s
60-80mph = 2.60s
60-100mph = 5.15s
30-120mph = 10.48s

So not bad in comparison to the Gallardo and bear in mind I suspect the Gallardo has more than 5 gears and hence making its ratios shorter. Obviously though if they tested different that would make the results slightly different but the bonus of been supercharged is zero-lag and it pulls like a train with no sign of dying off in fact past 4500rpm it pulls harder which is maybe why the 60-80mph time seems quicker.

Also my tuners in the US just got back to me. They say my car is running more or less exactly as they predicted. My tune is good but the car is running rich when on wide open throttle. Once I've got my A/F readings they can write me a new tune and then do this over again. However they've done 400+ of these cars now and from the results mine is nothing out of the ordinary compared to others but does seem to be better than average. They reckon if I wanted I could get this upto 495RWHP on the stock engine internals and fueling system which is a little better than normal. I will be happy to get between 440-460RWHP their terms which is 500+ at the crank. :) At the moment I suspect its around 410-430RWHP (470-490BHP). :)
 
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