Speed limitation...can't drive over 220km/h!!!

[FIRO...AZM!!!]

HI...I'm facing a problem, on my last trip (2100 km long) i was trying to see how fast I can reach (before 245km/h).
But I couldn't go more than 220km/h..!!!
The RPM was arround 5500r/m I cant remember exactly, anyway...I have tried to do so many times!!!
Now, some times or most of times, I see that the RPB goes slowly after 4000-4500, and sometimes I feel that the acceleration is not like before.
Some told me that it might be the fuel pump and some says that it could be the electrical acceleration (or air flow controler)....I don't know really...

Any one can help?

Firo Azem
535 manual
1990

[Bill R.]

HI...I'm facing a problem, on my last trip (2100 km long) i was trying to see how fast I can reach (before 245km/h).
But I couldn't go more than 220km/h..!!!
The RPM was arround 5500r/m I cant remember exactly, anyway...I have tried to do so many times!!!
Now, some times or most of times, I see that the RPB goes slowly after 4000-4500, and sometimes I feel that the acceleration is not like before.
Some told me that it might be the fuel pump and some says that it could be the electrical acceleration (or air flow controler)....I don't know really...

Any one can help?

Firo Azem
535 manual
1990

[632 Regal]

Thats not bad, the most I had a chance to stretch its leggs out was about 125 so far, just not as daring as I was in my youth I guess.

[ryan roopnarine]

Take my license, all that jive
I can't drive 55!
No, no no,
I can't drive...
(I can't drive 55!)
I can't drive...
(I can't drive 55!)
I can't drive 55!


what country are you in? i know my us 525i is limited to about that, felt like it could go more.

[bimmerd00d]

128mph is the limit for a stock chip i believe. EAT chip, and you'll about 155 or so

[Jeff N.]

I don't think there's a top end limiter in the E34. Rev yes, speed no.

I suspect the car will go faster in 4th than 5th. I had mine up to 135 once and it was still pulling well when I goT out of the gas. Car is starting to get floaty at that speed - not the best feeling.

Jeff

[Phil M]

The first day I got her, I decided to take her out to this stretch of a 4 lane deserted access road.. got up to 140mph and got really scared and let off. Jesus that was a rush but not a very smart one. I believe I read that there is a limit at 155..doesnt mean that your inline 6 is going to get up there though :p

[DueyT]

...but a chipped M60B40 might....

[FIRO...AZM!!!]

What I want to say is that there is a problem, but I don't know what or where!
As I said before... I have reached 245km/h (153 mile/h) last year.
But now as I listed below...there is something wrong...!





HI...I'm facing a problem, on my last trip (2100 km long) i was trying to see how fast I can reach (before 245km/h).
But I couldn't go more than 220km/h..!!!
The RPM was arround 5500r/m I cant remember exactly, anyway...I have tried to do so many times!!!
Now, some times or most of times, I see that the RPB goes slowly after 4000-4500, and sometimes I feel that the acceleration is not like before.
Some told me that it might be the fuel pump and some says that it could be the electrical acceleration (or air flow controler)....I don't know really...

Any one can help?

Firo Azem
535 manual
1990

[Chad535]

Mine would go up to 4500, then drop suddenly to 4000 then go on, but i never tried the Max speed....there must be some problem in my case at least.

[kiNGMak]

i havent tried max speed.... only gotten to 145mph (uphill) and decided to back off.. although i can roughly hit 135 in 4th gear :)

[riot]

check your obc. mph limit....

[SteveW_M535i]

Hi,

The OBC Limit is just a gong to let you know you are going fast :) Most people set it too something just around the limit (in the UK mine's at 80MPH) over the limit but I don't want it chiming all the time.

As far as I can see no OBC's were ever set to limit anything. That would be the DME's job if any, I know my old 3.6M5 was limited (!) .... But that fell off one day ..... Darn :)

Normally things like the revs dropping at speed are a sign of something else, poor ignition leads, plugs, dissy cap etc. All these things can breakdown under a load which is greater than normal, the other if fuel starvation --- poor punp flow - bad filter etc.

Steve

[dca]

this can be realted to clogged fuel filter, have your recently replaced it? do so.

[FIRO...AZM!!!]

I have cleaned & change the injectors headers + ignition leads, plugs, dissy cap, cables, fuel filter...
But did not change fuel pump
Do I have to change it or something related to Airflow or the electrical accelerator (it is not a cable accelerator).

What do you think?





HI...I'm facing a problem, on my last trip (2100 km long) i was trying to see how fast I can reach (before 245km/h).
But I couldn't go more than 220km/h..!!!
The RPM was arround 5500r/m I cant remember exactly, anyway...I have tried to do so many times!!!
Now, some times or most of times, I see that the RPB goes slowly after 4000-4500, and sometimes I feel that the acceleration is not like before.
Some told me that it might be the fuel pump and some says that it could be the electrical acceleration (or air flow controler)....I don't know really...

Any one can help?

Firo Azem
535 manual
1990

[mrbmw1]

Phil,My 94 540i lights 110 + max hp doues yours say that also I can do about 130 then it dyes out

[mrbmw1]

not really I didn't even think about that for mine daaaaaaaaaa! OK