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Author Topic: Ways to get better Acceleration with Auto V6?  (Read 7072 times)

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Paul M

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Re: Ways to get better Acceleration with Auto V6?
« Reply #45 on: 16 August 2007, 22:05:41 »
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I think you would be shocked at how how the TC gets, even during normal driving...

That's where half your horsepower is going ;D
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TheBoy

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Re: Ways to get better Acceleration with Auto V6?
« Reply #46 on: 16 August 2007, 22:26:24 »
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On a similar note... when you've ridden an R1 on semi-slick tyres in pissing rain (got caught in it 150 miles from home a few weeks ago) you soon learn how precious traction is! :o
Been there on the ZX10 (being older gives all its power roughly all in one hit, unlike the R1, which is softened by the injection system, making it smoother and a better ride), though only time I've come off it was in dry, fine condition  :-[

ZX10, monster in the dry, utterly lethal in the wet.  And bloody heavy to pick up  :-[

I wouldn't like to imagine! Worst part was coming over Glenshee, it's a steep, twisty climb up a small mountain (you pass a ski resort at the top) then similar on the way down. Great fun in the dry, but trying to do hairpin bends uphill in that rain was a challenge! As soon as I applied any power the back wheel wanted to step out :o. It's taught me one thing -- as much as I'm a dry weather biker, I'm buying a more suitable tyre for the rain in preperation for the next time I get caught out ;)

I've yet to drop a bike, surprisingly enough. Closest I came was stationary on my parents' driveway, it was when I just bought my SV650 winter bike. The guy who sold it to me was only about 10 miles from my folks' so I asked him to ride it up and I'd drive him home in the car. Job done, got back and went to take the bike out, that was when I discovered he'd parked it facing down a slight hill. Never really thought anything of it, but as soon as I touched it, the bike rolled forward and off the side stand ;D. Thankfully I was standing to the left of it so I quickly grabbed the brake just as my leg got jammed under it! It was down about 45 degrees, surprisingly difficult to lift as I couldn't move without letting go of the brake. Glad it only weighs about 170 Kg!

I've dropped all my bikes  :-[, usually on drive kicking off centre stand after doing something to it.  You quickly lift it, check none saw, and polished out the scratches ;)  ZX10 is the first (and hopefully last, as it bloody hurt) I've done on the road.

If you do drop one, I find easier way to lift is to stand the other side to what its fallen, both hands on the highest handlebar, and pull up towards you....
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Markjay

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Re: Ways to get better Acceleration with Auto V6?
« Reply #47 on: 16 August 2007, 23:47:31 »
From all the suggestions made so far, what seems to me will have the most effect to losing as much weight as possible. I am not familiar with the requirements at Santa Pod, but usually there are either minimum weight requirements or simply rules with regards to what you can and what you can't take off the car. I helped prepare a mate's rally car (Golf GTI MkI) many years ago, it was stripped to the bone , had fibreglass bonnet, and perspex windows instead of glass... though I appreciate that when it comes to rally there are other reasons to loosing weight i.e. handling etc.


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Markjay

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Re: Ways to get better Acceleration with Auto V6?
« Reply #48 on: 16 August 2007, 23:48:26 »
As for the sports mode... I can't see how it will make a difference, it certainly doesn't on my car. On kick-down the box shits-up at the rev limiter anyway, at which point the selected driving program i.e. Economy or Sports has no effect... the driving program determines when gears are changed only when driving normally but not at full throttle, at full throttle it will always change at the rev limited anyway ignoring the driving program selected.
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Kevin Wood

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Re: Ways to get better Acceleration with Auto V6?
« Reply #49 on: 17 August 2007, 09:14:28 »
I'm not sure I agree about the sport mode. Pretty sure mine changes up a little earlier when not in sport mode. When in sport mode it redlines in every gear. It also seems to change quicker and harsher, in that it probably doesn't back off the engine torque for as long to get a smooth change.

Will maybe find myself a quiet road private test track and try a few runs with the data logger.

Weight is the Omega's biggest handicap, though, so anything you can remove will help, and if you're really after quick times, start with a lighter car.

One the one time I went to Santa Pod it seemed pretty much anything goes. Take a metal frame, strap on 4 wheels, a seat and a V8 and go racing!

Kevin
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Jimbob

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Re: Ways to get better Acceleration with Auto V6?
« Reply #50 on: 17 August 2007, 09:27:03 »
Think the 2.2 gets an extra few hundred revs per change with sport mode on.

Don't feel the need in the MV6 for some reason
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Markjay

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Re: Ways to get better Acceleration with Auto V6?
« Reply #51 on: 17 August 2007, 10:43:32 »
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Think the 2.2 gets an extra few hundred revs per change with sport mode on.

Don't feel the need in the MV6 for some reason


Check the rev it changes gear in when you are at full throttle, it will go up to the rev limiter even in Economy mode.

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TheBoy

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Re: Ways to get better Acceleration with Auto V6?
« Reply #52 on: 17 August 2007, 20:42:46 »
In the petrol ones, running recent software, foot hard down will cause it to change up at redline.

Sports makes it more aggressive in kickdown - in normal, if you attempt kickdown near the changepoint, it won't drop.  Sports also changes down earlier.
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cem_devecioglu

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Re: Ways to get better Acceleration with Auto V6?
« Reply #53 on: 17 August 2007, 22:22:25 »
sports mode changes nearly 6500 rpm if I  see correct ( I'm four eyes and cant see far :)

but manual 1-2-3-D sequence I can reach 7000 rpm easily ..

PS: never measured the timing in secs but I dont believe this silly 9.5 seconds for 2.5 V6
as I start with BMWs at the light and they do not overtake me (rating 8.5)
« Last Edit: 17 August 2007, 22:24:24 by cem_devecioglu »
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TheBoy

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Re: Ways to get better Acceleration with Auto V6?
« Reply #54 on: 17 August 2007, 22:29:46 »
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sports mode changes nearly 6500 rpm if I  see correct ( I'm four eyes and cant see far :)

but manual 1-2-3-D sequence I can reach 7000 rpm easily ..

PS: never measured the timing in secs but I dont believe this silly 9.5 seconds for 2.5 V6
as I start with BMWs at the light and they do not overtake me (rating 8.5)
mine has a rev limiter at 6750 rpm. Apparently ::)

just under 8s is what we see from 2.5 autos in UK, not sure if your spec has same gearing...
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cem_devecioglu

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Re: Ways to get better Acceleration with Auto V6?
« Reply #55 on: 17 August 2007, 22:37:19 »
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sports mode changes nearly 6500 rpm if I  see correct ( I'm four eyes and cant see far :)

but manual 1-2-3-D sequence I can reach 7000 rpm easily ..

PS: never measured the timing in secs but I dont believe this silly 9.5 seconds for 2.5 V6
as I start with BMWs at the light and they do not overtake me (rating 8.5)
mine has a rev limiter at 6750 rpm. Apparently ::)

just under 8s is what we see from 2.5 autos in UK, not sure if your spec has same gearing...

As I say I cant see very good  :)

I assume the end of rev as 7000. In too many stupid net pages they tell 9.5 and sometimes 10.2 what make me mad  >:(

You make me really realy happy thanks  :y

The autobox is the same as yours in UK ..Now jumping...
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TheBoy

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Re: Ways to get better Acceleration with Auto V6?
« Reply #56 on: 17 August 2007, 22:44:50 »
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Quote
Quote
sports mode changes nearly 6500 rpm if I  see correct ( I'm four eyes and cant see far :)

but manual 1-2-3-D sequence I can reach 7000 rpm easily ..

PS: never measured the timing in secs but I dont believe this silly 9.5 seconds for 2.5 V6
as I start with BMWs at the light and they do not overtake me (rating 8.5)
mine has a rev limiter at 6750 rpm. Apparently ::)

just under 8s is what we see from 2.5 autos in UK, not sure if your spec has same gearing...

As I say I cant see very good  :)

I assume the end of rev as 7000. In too many stupid net pages they tell 9.5 and sometimes 10.2 what make me mad  >:(

You make me really realy happy thanks  :y

The autobox is the same as yours in UK ..Now jumping...
in uk, we have different diffs on 2.5 to gear down to improve acceleration, as said, not sure if yours does?
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cem_devecioglu

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Re: Ways to get better Acceleration with Auto V6?
« Reply #57 on: 17 August 2007, 22:49:49 »
Quote
Quote
Quote
Quote
sports mode changes nearly 6500 rpm if I  see correct ( I'm four eyes and cant see far :)

but manual 1-2-3-D sequence I can reach 7000 rpm easily ..

PS: never measured the timing in secs but I dont believe this silly 9.5 seconds for 2.5 V6
as I start with BMWs at the light and they do not overtake me (rating 8.5)
mine has a rev limiter at 6750 rpm. Apparently ::)

just under 8s is what we see from 2.5 autos in UK, not sure if your spec has same gearing...

As I say I cant see very good  :)

I assume the end of rev as 7000. In too many stupid net pages they tell 9.5 and sometimes 10.2 what make me mad  >:(

You make me really realy happy thanks  :y

The autobox is the same as yours in UK ..Now jumping...
in uk, we have different diffs on 2.5 to gear down to improve acceleration, as said, not sure if yours does?

GM origin french made AR25 .. I think this as standart for 2.5 autos
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cem_devecioglu

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Re: Ways to get better Acceleration with Auto V6?
« Reply #58 on: 17 August 2007, 22:51:02 »
or 4L30 E
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Martin_1962

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Re: Ways to get better Acceleration with Auto V6?
« Reply #59 on: 18 August 2007, 09:58:47 »
Manually changing seems no quicker but the engine will rev to around 7000rpm
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