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Was behind a BMS 5 series at the lights - they go green and he's off slowly at first. I'm behind him doing around 60kms. He then floors it, and like he's about to lift off to the moon. This thing just accelerates like crazy. I floor my car, and it drops down one gear (from fourth at around 1600RPM I think) to around 2100 RPM and start accelerating. However, the BMW had disappeared by then.
Boy, that was bad!
Question: If you are in third/fourth gear at relatively low speed and you floor the pedal, shouldn't the car jump in to 1st or something to give you that required acceleration?
Is a Beemer's acceleration faster then a Corvette's? Or do I have a really badly performing car? (BTW - I have a 88 coupe).
No mods to my car. I don't think the BM was an M series.
So now I feel like I want a BM540! But I'll hang on to my Corvette for a while longer - it's growing on me. :)
I'm thinking about the mods, and my interest will grow as soon as my funds do :) .
My question about the gears shifting down remains - what is a Corvette normally supposed to do? I don't like using the auto shifter down to 1st/2nd. I thought pressing the accelerator all the way was supposed to take care of that?
A 540 should not have beaten you so badly. True they have some more horsepower (282) but weigh nearly 4000lbs. The 6 speed version (pretty rare) is in the high 5 second range to 60mph while autos are over 6. Your car should be as fast if not faster then the stick shift car so something is amiss here unles it was an M5 which would certainly pull away from you like you described...then again I've yet to see one of those on the road.
As I understand it the BMW M5 has a weak clutch (9.5"). Trick is to get him to give you some repeat runs, as his clutch starts to burn you get him.
Actually there is a guy near me with one, great, fast, good looking car. He said he had it up to 160mph a couple of Sundays ago. He is on his second clutch at about 9k miles if I recall, and this one is TOAST.
Barrier :D :D :D
That's right, if you launched in D or OD, it depends on your speed and a little on tranny setup what gear it will down shift into. If you plan to play in traffic with the big boys mod your shifter like I did so that you can manually select the correct gear. Of course if you do some mods to get up to around 300hp at the crank would help too.
If I wanted to play with a car like that I'd leave the light in 1st gear and be ready to nail it if he tryed to pulled on me. Then at about 5k rpm I'd shift into 2nd, etc.
Your stock shifter has no shift feel in the 1st 3 gears but try this technique a time or two anyway. I think you'll be pleasantly surprised at the effect.
Your stock shifter has no shift feel in the 1st 3 gears but try this technique a time or two anyway. I think you'll be pleasantly surprised at the effect.
Funny thing is that if I use the shifter to select 1st or 2nd gear, I'm not sure which one it has actually selected. The shifter needle doesn't come all the way down to 1st and kind of hovers in between 1st and 2nd. I can select 2nd for sure as the needle points to it accurately.
Anyway - thanks for all the input - guess I'll now be more picky as to who to try and follow.
Aman, that's the way my shifter used to function. So I bought a used shifter and did the mods to it with a Dremel to provide positive shift feel.
Try repositioning your shifter boot to allow you to manually shift into 1st gear. You'll know when you have it because when your speedo reads about 35mph your tach will show about 3,700rpm. If it's only in 2nd gear it will upshift into second gear by that speed at part throttle.
Couple of thoughts. First, even if not an M5 but just an M series, these cars are very nimble. If he had a running start, then you need a LOT of HP to play catch up irregardless. If your car didn't downshift, I would verify the TV cable is correctly adjusted and that your throttle body is actually opening all the way when the pedal goes to the floor.