320i top speed problem

Need technical Q/A then you're in the right place

Moderator: martauto

Post Reply
FESI
E30 Zone Newbie
E30 Zone Newbie
Posts: 89
Joined: Fri Oct 14, 2005 11:00 pm
Location: Croatia

Thu Aug 02, 2007 11:04 pm

what is wrong with my car it hits 200kph at 5500rpm and it simply wont go faster, why ???? :cry:
it is pre-facelift 87. 320i with LE-Jetronic, new spark plugs and filters, diff is i think 3.91

Image

please help someone
thanks
Image
maxfield
Old Skooler
Old Skooler
Posts: 15186
Joined: Sat Nov 26, 2005 11:00 pm
Location: Mansfield

Thu Aug 02, 2007 11:07 pm

120mph sounds about right to me.
Image
Demlotcrew
E30 Zone Team Member
E30 Zone Team Member
Posts: 13329
Joined: Mon Dec 20, 2004 11:00 pm
Location: East Anglia

Thu Aug 02, 2007 11:08 pm

Thats its top speed. The engine doesnt have the bhp to push much faster.

But its weird why your economy gauge is showing anything at such speed/load.
78dude
E30 Zone Camper
E30 Zone Camper
Posts: 1154
Joined: Thu Aug 17, 2006 11:00 pm
Location: Norway

Thu Aug 02, 2007 11:15 pm

You need a turbo man!
FESI
E30 Zone Newbie
E30 Zone Newbie
Posts: 89
Joined: Fri Oct 14, 2005 11:00 pm
Location: Croatia

Thu Aug 02, 2007 11:22 pm

2 demlotcrew: consumption on that speed is 22-23 liters/100km is that wrong ??
Image
User avatar
grantfk10
E30 Zone Meets/Events Team
E30 Zone Meets/Events Team
Posts: 2926
Joined: Mon Jan 17, 2005 11:00 pm
Location: UFOland, Central Scotland

Fri Aug 03, 2007 12:30 am

FESI wrote:what is wrong with my car it hits 200kph at 5500rpm and it simply wont go faster, why ???? :cry:
it is pre-facelift 87. 320i with LE-Jetronic, new spark plugs and filters, diff is i think 3.91

Image

please help someone
thanks
Probably because it's a 320i

That's your limit!
Jhonno
Homo Hair
Posts: 20362
Joined: Mon Jan 10, 2005 11:00 pm
Location: FLAT, FLAT, FLAT!!
Contact:

Fri Aug 03, 2007 12:37 am

its a 320i.. thats why it has speed issues
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

Image
whipsey
E30 Zone Addict
E30 Zone Addict
Posts: 3731
Joined: Wed May 25, 2005 11:00 pm
Location: kettering

Fri Aug 03, 2007 12:38 am

Jhonno wrote:its a 320i.. thats why it has speed issues
:cry: :cry:
78dude
E30 Zone Camper
E30 Zone Camper
Posts: 1154
Joined: Thu Aug 17, 2006 11:00 pm
Location: Norway

Fri Aug 03, 2007 12:43 am

I dont know what the actual top speed of an E30 320i was when it was new, but some where around 180/190 Km/h that means that you maybe fetch 210 km/h on the speedo. (When new)
Remember your car is old, the age tears the engine and also the performance.
How many KM do you have on the clock?
78dude
E30 Zone Camper
E30 Zone Camper
Posts: 1154
Joined: Thu Aug 17, 2006 11:00 pm
Location: Norway

Fri Aug 03, 2007 12:58 am

I went into Carfolio and looked up some info about your car, and they say it will do 200 Km/h who means that you should reach 210/215 Km/h on the speedo. Looks like age have done some to your car sir...
Jon_Bmw
Dangerous when thinking
Dangerous when thinking
Posts: 7606
Joined: Tue Jan 11, 2005 11:00 pm
Location: Salisbury

Fri Aug 03, 2007 1:10 am

Jhonno wrote:its a 320i.. thats why it has speed issues
Lol

Also the picture could have been taken as your foot was lifted hence the good reading on the economy gauge perhaps?
FESI
E30 Zone Newbie
E30 Zone Newbie
Posts: 89
Joined: Fri Oct 14, 2005 11:00 pm
Location: Croatia

Sat Aug 04, 2007 6:34 pm

would other 320i owners write whats their top speed on tacho please :roll:
Image
User avatar
riche30
E30 Zone Newbie
E30 Zone Newbie
Posts: 42
Joined: Fri Sep 23, 2005 11:00 pm
Location: Nottingham

Sat Aug 04, 2007 7:19 pm

I got my 320i up to 110mph, it could've gone a bit faster but it's best not to thrash a 19 year old engine :nono:
tari
Old Skooler
Old Skooler
Posts: 972
Joined: Mon Mar 13, 2006 11:00 pm
Location: East London

Sat Aug 04, 2007 8:59 pm

riche30 wrote:I got my 320i up to 110mph, it could've gone a bit faster but it's best not to thrash a 19 year old engine :nono:
same here
Image
fuzzy
He who sleeps with "Gingers"
Posts: 14351
Joined: Sat Jun 04, 2005 11:00 pm
Location: melbourne Australia

Sat Aug 04, 2007 9:07 pm

FESI wrote:would other 320i owners write whats their top speed on tacho please :roll:
my 320 will hit 135ish before the 3.91 ratio lsd kicks in and limits me to that although its slightly different to your 320 winkeye .id be happy with that tbh but if your not you could put a different ratio diff in to give a higher top end but cost you acceleration wise.imo better acceleation over higher top end is more usable on a daily basis. 8)
boxclever1753
E30 Zone Camper
E30 Zone Camper
Posts: 1447
Joined: Sat Feb 17, 2007 11:00 pm
Location: Bristol, UK.

Sat Aug 04, 2007 9:10 pm

f*ck knows - my autobox decided to die today :cry:
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Sat Aug 04, 2007 9:20 pm

riche30 wrote:I got my 320i up to 110mph, it could've gone a bit faster but it's best not to thrash a 19 year old engine :nono:
Why on earth not? As long as it's got BMW written on it.
User avatar
murran
E30 Zone Squatter
E30 Zone Squatter
Posts: 1683
Joined: Sat Jul 28, 2007 11:00 pm
Location: sheffield, good old sheffield!

Sat Aug 04, 2007 9:48 pm

i cain my 320i every where and thats got 152 thou on it. 19 years old phah! if its lasted 19 years its obviously not going to break now is it!? dont know about top speed, done 95 in it that was at bout 4500-5000 revs in mine so 110-115ish top end sounds bout right to me. :)
Image
e21 killing tyres with e30 325 powerzzz
drifting on the cheap......... www.trampdrift.com
e21zone........ www.bmwe21.net
Martinaston
E30 Zone Addict
E30 Zone Addict
Posts: 3749
Joined: Mon Mar 14, 2005 11:00 pm
Location: London

Sun Aug 05, 2007 12:22 am

I ran my 320 with a 3.64 slipper for a while and it made no difference to top speed, your limited by the aerodynamics of the thing, well, lack of aerodynamics.
The B20 just hasn't got the poke to push past 120, i managed 135 once but that soon dropped once i got to the bottom of the hill :mad:
There is NO nucleus.
FESI
E30 Zone Newbie
E30 Zone Newbie
Posts: 89
Joined: Fri Oct 14, 2005 11:00 pm
Location: Croatia

Sun Aug 05, 2007 6:46 pm

well i'm asking this because it's got 700-800rpm to rev limiter and the car gives most hp at 6000rpm so why the car won't use that :roll:
my friend has e36 320i and it hits 220kph and limiter stops it on 6???rpm why e30 is not using all rpm :?:
me and him are having standard diff :roll:
Image
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Sun Aug 05, 2007 8:53 pm

Because the E36 320 has two advantages over the E30 320, both of which are relevant here.
1) It has a 24 valve twin cam engine, compared with the E30 12 valve, single cam, and
2) It has somewhat better aerodynamics than the non M E30.
Post Reply