Accelerates Really Slow - BMW Forum

aboualmeer · 11-04-2004, 02:40 PM

hay guys i bought my 92 320i sedal and ive just noticed that while i goes from 0 to 40 k/h the rpm goes very quickly while the car is less in speed tthan the rpm shows.
and also on the 2nd gear but in the 2nd gear when the rpm reaches 4 it goes faster suddenly as if its slips as beggin...
what could b the problem ??

Cruzin 323is · 11-04-2004, 03:51 PM

its desiel... and a at 4 rpm, the tourque starts to kick in!!

aboualmeer · 11-05-2004, 11:41 AM

well to be more clear about that ..
i start from 0 klm on first gear till the motor kicks and it reaches hardly 30km
then i go for second gear and also until it kicks it reaches 80 ..
i mean its 6 cylinder car 320 30 horse power ...where the hell is all this power i mean i must have a good number on my dash on 2nd gear :S...
...
yoo ppl there manual gear BMW when ur motor's starts to kick at the 1st 2 gears
..
its really confusin me .. :S

xsperf · 11-05-2004, 01:26 PM

its probably ur clutch

Rookie · 11-05-2004, 02:21 PM

I drive a 328is, and in first gear I get incredible kick above 2000 and don't really notice the vanos kickin because I have to shift. In 2nd my engine kicks really hard once it hits 3000-3500 you can feel the vanos or power band which ever it is, and it will push your head back into the headrest. Hope this helps!

I test drove a 323 once and noticed there was alot less kick to it, but have never driven a 320. Hope you find out what the problem is!

Rookie · 11-05-2004, 02:25 PM

Oh ya I forgot, I think BMW has some sort of a clutch delay. When you are shifting too fast and accidentally dump the clutch, the car will feather the clutch in over a second or two. I had this happen and I got to redline of second gear before it finally caught and brought the RPMs back into line with the actual speed I was going.

But it is probally your clutch!

Autotechnica · 11-06-2004, 03:00 PM

The 320 doesn't really kick. I've driven it many times and it's nothing like the 325 inline 6. With it's small displacement and heavy engine, the performance is closer and in my opinion even worse than the 318. I don't know if the engine has any potential, but there aren't many modifications for the 320. They were only sold here in Canada for 1 year.

BMW's first gear is short, it has nothing to do with power. It's the gear ratios. BMW uses shorter gears for lower powered cars such as 316/318/320 so it's easier to start from a stop. If your first gear was too long it would take you forever to get the car moving. It gives you the illusion of torque.

Bry

xsperf · 11-06-2004, 03:32 PM

it doesnt matter, hes saying the RPM goes up while his car isnt moving, i know u say the first gear is short,but what about second gear, and then finally at 4k RPM, no matter how short the gear is, there is still a gain of speed

Autotechnica · 11-06-2004, 10:59 PM

Quote:

Originally posted by xsperf@Nov 6 2004, 03:32 PM
it doesnt matter, hes saying the RPM goes up while his car isnt moving, i know u say the first gear is short,but what about second gear, and then finally at 4k RPM, no matter how short the gear is, there is still a gain of speed

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His question wasn't that clear. But I don't read where it says his car wasn't moving?

xsperf · 11-06-2004, 11:21 PM

Quote:

Originally posted by aboualmeer@Nov 4 2004, 02:40 PM
rpm goes very quickly while the car is less in speed

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yes, u have a point
i understood that rpms goin up and car is either at same speed or even slowing down

Autotechnica · 11-07-2004, 09:46 AM

Just a guess, but I think what he is trying to say is that when he is accelerating his speedo shows that his speed is increasing normally, but he doesn't feel the kick like he thought he would. As in he doesn't feel the g-forces while accelerating but the speedo's speed is increasing.

That's what I understand from what he wrote, maybe he can come back and clear it up. Honestly, I'm really confused.

Bry

92_325i · 11-07-2004, 10:09 AM

Quote:

Originally posted by Rookie@Nov 5 2004, 03:25 PM
Oh ya I forgot, I think BMW has some sort of a clutch delay. When you are shifting too fast and accidentally dump the clutch, the car will feather the clutch in over a second or two. I had this happen and I got to redline of second gear before it finally caught and brought the RPMs back into line with the actual speed I was going.

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a little off topic, but is there any way to override that little delay?

xsperf · 11-07-2004, 12:00 PM

yeah, there is something like right behind the slave cylnder, its some kinda valve, thats what they call it, its prolly all over the internet

aboualmeer · 11-11-2004, 08:17 AM

hay ppl sorry for being late ..
Rookie i think ur right i believe its from the clutch cause the 1st 2nd and third gear are really to slow ..like i cant reach more than40 klm at the 1st gear and the 2nd it reaches 60 and 3rd only 110klm and the rest of the dash board are for the 4th and fifth gear i mean its really a problem and its not like it was mentioned because of being a 320 bmw where its motor is like this from company ????
so i have to repair the clutch or wat ??

Rookie · 11-12-2004, 10:06 AM

Alright just to clarify, after your clutch is engaged in first and you are rolling slowly, put your foot in the gas and see what happens. What should happen is the speedo and the tach should move together, all be it the tach will move alot faster but the ration will still be the same, I shift at like 4,500 rpms into second, and then you can really notice that the speedo and the tach are locked together. If the tach is moving a hell of alot faster and the speedo is not moving at all, then it is probally your clutch. When thing to check is how far do you have to move the pedal from engagment to fully engaged.

This is confusing because the pedal has a really long throw, but you need to think that the point at which the clutch will engage and start bringing down the rpms on the engine without you giving it gas to full engaged should be really short, I think mine is only like 2-3 inches. If range is really long like 5-6 inches you probally need a new clutch, also check for burning rubber smells. Try driving up twistie hill and getting all over it, like you were racing, and at the top see if you smell clutch. It is a very distinct smell.

Much beyond this go to a BMW mech and see if they can check it out for you, I know that this is a not a 2-3 hour DIY thing, but I have never checked into doing it. If it is your clutch thing about a lighterweight flywheel while you are in there.