49 replies to this topic

[John Clayton]

Only 400 kg -wow! How did you get it so low?

[jonspeed 1400 sprint]

I have now found the article you are talking about and yes, I can see that it was written with a slant.

I mistakenly understood these claims to be from the builders themselves.

My bad.

John

[Paul Wiginton]

Only 400 kg -wow! How did you get it so low?

Lots of alloy and titanium

[Sprocket]

Only 400 kg -wow! How did you get it so low?

Lots of alloy and titanium

You're forgetting all the steel that would normally be there, that isn't, such as the 3 or so inches cut from the body lines:lol:

[John Clayton]

So for my Mini, do people agree that about 8.5 seconds 0-60 would be a reasonable expecation? [spec of car is on the 1st post of this thread]

[John Clayton]

Im planning to try the DYNOLICIOUS app for the iphone to measure the 0-60 time, estimated BHP etc....

[runkthepunk]

Resurrecting this old thread a bit as I just used my Dynolicious for the first time and found it interesting.

I used DYNOLICIOUS the other day and got two run results.

The dual carriageway was pretty level as far as I could see and I started from in a lay-by.

I have a 1991 cooper BUT:

have a 1989 1275 metro engine,
later type MG metro head (larger valves on either exhaust or inlet forget which but not larger on both)
unknown gearbox (sorry not very useful I know) presume its the metro one.
Stage 1 Exhaust Kit
HIF44 with MG Metro Needle Profile (that bogs down something fierce at 2000 RPM!)

No wind to speak of and it was nice and dry

The weight settings I used for the car in Dynolicious were:

TOTAL WEIGHT: 784KG

Split as follows:

CAR: 686 KG (Kerb Weight)
FUEL: 15KG (not full tank)
EXTRAS: 11KG (spare tyre etc)
MYSELF: 72KG

here are my results

RUN 1

0-10 = 7.20
10-20 = 8.72
20-30 = 11.12
30-40 = 13.03
40-50 = 16.64
50-60 = 19.80

1/4 MILE = 25.80

MAX SPEED = 73.3MPH
MAX ACCEL = 0.62G
PEAK HP = 64HP



RUN 2

0-10 = 5.37
10-20 = 6.73
20-30 = 9.06
30-40 = 12.01
40-50 = 15.42
50-60 = 19.39

1/4 MILE = 20.12

MAX SPEED = 69.1MPH
MAX ACCEL = 0.62G
PEAK HP = 60HP

sorry if this post is boring or doesn't make easy reading but I thought it was interesting

Rob

[Cooperman]

So for my Mini, do people agree that about 8.5 seconds 0-60 would be a reasonable expecation? [spec of car is on the 1st post of this thread]

John, I think you might just beat 8.5 seconds. Maybe 8.0 if you really get it off the line cleanly.

[mike.]

here are my results

RUN 1

0-10 = 7.20
10-20 = 8.72
20-30 = 11.12
30-40 = 13.03
40-50 = 16.64
50-60 = 19.80

What do these numbers mean?

0-10 is that mph? and 7.20 is that seconds?

If you car takes 7.2 seconds to get to 10mph - What is it powered by... wind?

Edited by mike., 13 September 2011 - 11:08 PM.

[cooperrodeo]

So that's a cool 76 seconds to get to 60mph?

[jaydee]

Resurrecting this old thread a bit as I just used my Dynolicious for the first time and found it interesting.

I used DYNOLICIOUS the other day and got two run results.

Can i ask you what a dynolicious is, how it works and how i have to read the results?
I'm curious, it sounds like a GPS based rolling road..

Edited by jaydee, 14 September 2011 - 01:35 PM.

[Gulfclubby]

It's an iPhone or Blackberry App that works with the built-in accelerometer and GPS (optionally). Haven't tried myself, but I hear it's fairly accurate if you set it up right. Those numbers above don't make sense, though.

[runkthepunk]

I had a feeling this might confuse some people so I will attempt to explain.

Dynolicious is an APP for the iphone and ipod touch which provides a pretty accurate readout for 0-60 times etc using the machines inbuilt accelerometer

If you have not used the APP before it would be simpler to ask what they mean rather than guessing

0 MPH to 10 MPH = 7.20 secs

I realise this is slow and I in fact manged 2 seconds faster than this on the next run (but that was over looked) but to simply mathematically times the first number by 10 to get a 0-60 time is frankly stupid.

If you look at the next figure 10 -20 at 8.72 that means it took 1.52 seconds to get from 10MPH to 20 MPH the figures move upwards as a total hence the top figure 50-60MPH is 19.8

Total 0-60 time 19.8 Seconds

Dynolicious gives you those individual figures so you can see where you could improve on gear changes etc. and in my case most areas.

I believe a 63 BHP cooper from new was quoted at 0-60 in around 12 seconds so considering I am not a race driver and my engine is as stated at the start of the topic I am not surprised its as slow as it is to be honest.

My total 0-60 time was 19.8 seconds on the run being quoted which I appreciate is way below what most people think their car can deliver.

Frankly anyone who genuinely thinks they will get an accurate readout of their 0-60 time by pressing the stop watch on their mobile phone and watching the needle on the dash is deluded. If people quote times down to 0.3 of a second you have to consider that could be the time it takes you to press the button on your phone either to start or stop the counter.

I accept my car is slow, I never was playing the how big is my dick game with the weight or speed of my mini I just thought it was interesting. I would of course have thought it was faster than this but at least I have something to work with rather than guess work. Now if I do make some modifications I can see if they effect my times after I try a lot more runs to get better at it.

The BHP readout from Dynolicious is inevitably going to be inaccurate as it is all down to how much you, the user, say your car, including the driver the fuel, spare tyre and the box of tools in the boot weighs to provide an accurate figure so the BHP can be calculated. Thus the BHP figure of the engine is always going to be the least accurate part of the process. Unless you accurately weigh the entire car and contents moments before doing the run.

I recommend the programme and maybe if it gets more popular a ‘standardised’ weight figure could be put on the site as a sticky to give people a base to start with because as I said before it does involve the user putting in weight figures etc and setting the system up.

Hope this cleared up any mis-understandings

Rob

[jaydee]

Sounds interesting as i have no local RR so i want to try it.
I definately have to look for it in the app store for iphone 4 (and re-weight my car as i've lightened it further ).

[Cooperman]

The original 850 Mini with 34 bhp took around 26 seconds for 0 - 60. The 998 took around 15 to 16 secs with it's 55 bhp. A 1275 'S' with 75 bhp took about 11 secs.
Of course, an 850 did not weigh as much as the Coopers did.