[MINI2_COOPER]

Guys, whats the best RPM to launch the manual MINI cooper from a standing start ?

... best RPM to shift from 1st to 2nd?

... 2nd to 3rd?

... 3rd to 4th?

... 4th to 5th?

all for a drag strip , of course.

Daniel

[FLiPSiDE]

try searching performance forums, this has been covered

[swamos]

I have moved this thread into this performance and tuning forum. Hopefully someone in here can help, if not point us in the right direction.

[RedUn]

between 3000 and 3500 rpm is enuff for a decent start

as for between gears whenever u feel that you will accelerate faster in the next gear around 6000 rpm ruffly

hope that helped

[GregF]

Road & Track (FEB '02) got their best Cooper 0-60 time by launching at 3500 rpm.

[PW51CAR]

To be honest I would say 4000 rpm if you are good at launching.

[RedUn]

Quote: Originally Posted by PW51CAR

To be honest I would say 4000 rpm if you are good at launching and don't like your clutch or tires.

cudn't resist soz

[swamos]

Quote: Originally Posted by PW51CAR

To be honest I would say 4000 rpm if you are good at launching.

Fine line between launching and lunching heh ?

[Goonery]

3-3500 is good, in First any more and you'll be eating the clutch4000 ish second

4500 third
and fourth
You'll be doing 90 + then easily

[PW51CAR]

Hehehehe yea there is a fine line, but I always like a good munch of the tyres and clutch. Yea it will screw the clutch but just get a new one, you dont do 1/4's etc and expect that not to happen I dont understand how you would say change at 4000rpm in 2nd when the car basically doesnt kick in until 4000 revs, assuming you are talking about the Cooper S.... The thread was for a Cooper

Pretty much standard Mini Cooper last 1/4 time was 15.8@90 but the car I was racing down the 1/4 happened to be a 500bhp Escort Cossie with an extra 100 shot of nos lol.

[wow]

Quote: Originally Posted by GregF

Road & Track (FEB '02) got their best Cooper 0-60 time by launching at 3500 rpm.

What was their time?

[HarryHBMCC]

Redline at every gear for fastest times. I don't do big launches, just rev up a little to 2000 or thereabouts, so can't help you there.

[PW51CAR]

If you are going for an out and out time you really are maybe going to have to put your clutch's life on the line. Just went out on my lunch break there and launched from 3-6000rpm and 4-4.5 was the fastest. And as for changing gears you need to really learn where the power starts to die off, and change just before it, if you want to be really smart, look at a power graph and you are wanting to change just where the peak is.

[randap]

Quote: Originally Posted by HarryIndiBlue

Redline at every gear for fastest times. I don't do big launches, just rev up a little to 2000 or thereabouts, so can't help you there.

I'm not sure about that. After peak power, the acceleration of the car reduces, so reving to the redline would actually be slower than reving to peak power (about 6000 rpm methinks) and then shifting. If the engine / gearbox is correctly designed, the next gear should engage at peak torque hence result in max acceleration.

IMHO.

[HarryHBMCC]

Quote: Originally Posted by randap

I'm not sure about that. After peak power, the acceleration of the car reduces, so reving to the redline would actually be slower than reving to peak power (about 6000 rpm methinks) and then shifting. If the engine / gearbox is correctly designed, the next gear should engage at peak torque hence result in max acceleration.

IMHO.

Even though power reduces after the peak, the acceleration is still above where it'll be when you shift up into the next gear as it will be much lower in RPMs and more importantly, much lower in gearing.

Harry

[goin440]

The best launch results I've personaly felt where around 4000 rpm. A quick drop of the clutch, a short tire squeal, and you swear something broke.... until you look at the time slip. I go through the other gears up to about 7000-ish. I think 2nd is good to about 50mph. You'll hit 80 mph easy in 3rd. 4th goes takes it well past 110mph. Wouldn't even bother with 5th at that point.

When just putt'n 'round, I think I launch around 2000-2500, then shift easy about 2500-3k there after. I'm not usually in a hurry and really don't pay much attention to it to say for sure. I guess I just go.

[randap]

Quote: Originally Posted by HarryIndiBlue

Even though power reduces after the peak, the acceleration is still above where it'll be when you shift up into the next gear as it will be much lower in RPMs and more importantly, much lower in gearing.

Harry

True, but your rate of acceleration will reduce beacuse of the power drop off. Wheras if you shift, the higher torque pulling lower gearing will surely result in at a better rate of acceleration (assuming everything is designed and matched correctly). If you were right, then shift lights would always be set at the redline (they're not), and by upping your rev limit you'd increase your acceleration performance (you don't).

[HarryHBMCC]

In some cases this is true but if you look around for accel graphs you'll see that the Cooper is geared too wide for what you say to be true. With shorter gearing it would probably work but with the Cooper at max torque the gearbox is too low, especially in 1st and 2nd.

Harry

[GregF]

Quote: Originally Posted by wow

What was their time?

8.5 seconds (on the way to 1/4 mile in 16.6 @83.5 mph).

[PW51CAR]

well I launched at 4-4.5 and got 1/4 mile in 15.8@90

hehehe (Standard mini cooper)

But I screwed my clutch at the same time (can be replaced) whole day of serious launching just made it heat up far far too much and it warped, wouldn't select any gear.

Anyone know if the AP clutch fits onto the standard mini cooper cover?