Gear Ratios:

**Zak33** · 13-11-2003, 04:56 PM

Right..its your car, so don't blame ME if you nuke it....

but..for the record.....my new Astra with cam is as follows. Its on original wheels and tyres and box..(at mo)

1st gear......37mph ..........at 7000 rpm
2nd gear.......60mph......at 7000 rpm
3rd gear.........87mph.....at 7000 rpm

that's why I got me a new crown wheel and pinion...

how big is THAT?

forget 4th........111...at 7000 rpm

**Lowe** · 13-11-2003, 05:01 PM

1st - dunno: it's that violent a take off I can't see the speedo cos my heads in the back of the car
2nd - dunno: still fighing the Gs.

3rd - 70mph ish
4th - 105 ish
5th - 115-120. I've not got the minerals to rev my engine that far

**Rave** · 13-11-2003, 05:19 PM

Hrm, mine looks to be the same as Zak's TBH, certainly for the first two gears. I seem to recall I've hit 90 in 3rd, maybe 115 in 4th, and 5th gives me almost exactly 20mph/1000rpm so 130 at 6500. That's assuming my speedo is accurate, which it probably isn't

.

I once hit the limiter in second doing about 64

Mk1 MR2, standard 14" wheels.

Rich :¬)

**Tumble** · 13-11-2003, 05:40 PM

1st 15mph

2nd 24 mph

3rd 34mph

4th 46mph

5th 58 ish.. downhill

divide speeds by 2 for lo box

**[GSV]Trig** · 13-11-2003, 05:55 PM

Only gear I know for certain is 4th, thats 122Mph at 6808rpm, strange thing is the book top speed is 135Mph, surely that must be wrong

**XTR** · 13-11-2003, 05:55 PM

1st = not sure
2nd = 60mph
3rd = just shy of 90
4th = not sure
5th = 135

**Maffu** · 13-11-2003, 07:14 PM

1st. Warp 7.6.

Don't usually get out of first gear.

**Zak33** · 13-11-2003, 07:14 PM

they're all so LONG (except Tumbles )

HEHE

I'm going from 3.7:1 final drive to 4.14:1

then if needs be...a 4.5:1 is possible....

that'll shorten the bugger

**Stringent** · 13-11-2003, 07:41 PM

/me wishes I had a rev counter ...

Not just for your experiment Zak, just so I know ...

**Zak33** · 13-11-2003, 08:55 PM

can get them...little round ones for the dashboard...normally need a positive, a negative and a lead to the coil pack...

**Maffu** · 13-11-2003, 09:15 PM

My old car did 45mph at 4,500rpm. Never took it beyond that, but could hit 6,500rpm. Oh how I yurn for those days.

Hopefully, by April next year, I'll be boasting about an 1st gear : 85mph : 14,000rpm ratio.

**blockers** · 13-11-2003, 10:22 PM

Well a 1.0 Micra is a power house, or a power shack i should say. Just guessing a bit, and no rev counter, just go until the noise gets unbearable

1st: 15mph
2nd: 25-30mph
3rd: 50-60mph (doesnt sound good at 60 tho...)
4th: 70mph (sister took it to 80mph once, im sure it was missing bits when it came back)

Will

p.s Dad has a C43 AMG, so that kinda makes up for the lack of micra power

**Russ** · 13-11-2003, 10:49 PM

wouldnt your 2nd gear be better at 62/3 mph zakk? for those all important 0-60/2 tests

**joshwa** · 14-11-2003, 12:10 AM

Originally posted by blockers
Well a 1.0 Micra is a power house, or a power shack i should say. Just guessing a bit, and no rev counter, just go until the noise gets unbearable

i found out today, you can normally tell when you've hit the limit when it stops accelerating (it's as though it's stopping you for accellerating more), and you can't go any faster, in my 1.25 Zetec Fiesta V reg:

1st: 30 @ 6500/7000 ish not sure
2nd: 55 @ same

wasn't on a suitable road to go any faster.

**sdp** · 14-11-2003, 02:05 AM

1st 20mph @ Pedal to the floor, with revs levelled out at brrrrrrmmmm!!!!

2nd 35-40mph (I think) @ Pedal to the floor, with revs levelled out at brrrrrrmmmm!!!!

3rd 50mph @ Pedal to the floor, with revs levelled out at brrrrrrmmmm!!!!

4th 75-80mph

@ Pedal through the floor, with revs levelled out at brrrrrrmmmm!!!!

4.5:1 would be mental!

**Grolschkid** · 14-11-2003, 12:40 PM

Renault 5 gt turbo, 1st dunno, 2nd 60mph very quickly, 3rd dunno, 4th dunno, 5th Ive only taken it to 120

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