Homepage
Forum Home Forum Home - Technical & Model Specific Forums - The Big CoupĆ© Forum
  New Posts New Posts
  FAQ FAQ  Forum Search   Register Register  Login Login

Forum Lockedhow fast is your 328 coupe???
 Post Reply Post Reply Page  123 4>
Author
Message
  Topic Search Topic Search  Topic Options Topic Options
barf View Drop Down
Senior Member I
Senior Member I


Joined: 08-March-2004
Points: 130 		Direct Link To This Post Topic: how fast is your 328 coupe???
    Posted: 28-March-2004 at 11:37

how fast is your coupe or saloon?? i recently managed to gather enough forward thrust to hit around 149 mph @ about 5850rpm! coincidentally, that is where the maximum power is produced. please bear in mind that the max speed in this country is 70mph and that the best way to achieve a max speed figure is to leave the country and do it in germany, like i did.....honest. dose the 149mph max speed seem about right for a 328 coupe with a rear spoiler.... and a proven 229 bhp.

one big downside to this extreme exercise is that it don't half drink some fuel!

please be honest! and keep it legal(ish)
Back to Top
BM Fan View Drop Down
Bavarian-Board Contributor
Bavarian-Board Contributor


Joined: 19-January-2004
Location: Ireland
Points: 1054 		Direct Link To This Post Posted: 29-March-2004 at 12:56

I have a 328i coupe and am looking a ding some tuning, has yours had some moods and if so what are they as it seems to be difficult to find anything on them - lots for the 325 etc.

The main one seems to be the air intake manifald as this is too restrictive in its standard form.  Costs seem to be in the rgion of €1k for new mainfild and remapped chip.  Reckon it should give 30-40bhp more which is a good hike over my standard 193.
Back to Top
Webdunk View Drop Down
Moderator Group
Moderator Group

M3 GT Register

Joined: 16-October-2002
Location: Central Scotland
Points: 5245 		Direct Link To This Post Posted: 29-March-2004 at 13:24
Have a wee search about - this topic has come up a few times... e.g. http://www.bmwcarclubgb.co.uk/forum/forum_posts.asp?TID=5032&KW=328+tuning+manifold.

Basically you're looking at induction kit (I can recommend the BMC CDA), exhaust, manifold, throttle body and custom mapped chip. 240bhp if you're lucky.

Beyond that you're in turbo / supercharger land which is big money.

Don't forget the upgrade to M3 / M3 Evo option, which many view as a much better way to spend the dosh.

Edited by Webdunk
Back to Top
barf View Drop Down
Senior Member I
Senior Member I


Joined: 08-March-2004
Points: 130 		Direct Link To This Post Posted: 29-March-2004 at 13:25

Get in touch with ALPINA 527 on the www.e36coupe.com web site. he does a throttle body and inlet manifold using bmw parts, put this with a good air filter and chip and expect to gain about an extra 30-35bhp! the cost is around £120 for the throttle body, £200 for the manifold, £80 for the filter and superchips charge around £265 for the remap. I make that £665 or there abouts.

But anyway, how fast is it? bmw reckon 147 mph in my handbook, but i think that they are dreaming! unless my speedo is under reading, which means ive been going way over 150 (on the german autobahns remember)
Back to Top
barf View Drop Down
Senior Member I
Senior Member I


Joined: 08-March-2004
Points: 130 		Direct Link To This Post Posted: 29-March-2004 at 13:27
Like i say webdunk, 229bhp @5860 rpm,  and it feels like it too!
Back to Top
Webdunk View Drop Down
Moderator Group
Moderator Group

M3 GT Register

Joined: 16-October-2002
Location: Central Scotland
Points: 5245 		Direct Link To This Post Posted: 29-March-2004 at 13:51
Originally posted by barf barf wrote:

unless my speedo is under reading, which means ive been going way over 150 (on the german autobahns remember)


Your speedo will be overreading from 100mph+
Back to Top
Peter Fenwick View Drop Down
Bavarian-Board Contributor
Bavarian-Board Contributor


Joined: 27-August-2003
Location: Lost somewhere in time...
Points: 6484 		Direct Link To This Post Posted: 29-March-2004 at 15:21

barf,

BMW reckoned on 147mph but most road tests done my magazines at the time reckoned on about 143mph. Yours may be a few mph faster as you have about 15% more power and you have moved the peak a little bit further up the rev range. However as webdunk says over 100mph your speedo will not be accurate and will read positive. 
Back to Top
barf View Drop Down
Senior Member I
Senior Member I


Joined: 08-March-2004
Points: 130 		Direct Link To This Post Posted: 29-March-2004 at 17:17

a recent session on the rollers idicated that at 30/50/and 70, the car speedo was consistantly reading 34/54 and 74 (ish), and ran on to an idicated 145mph @ 5750rpm on the rollers. the rev needle on the road seemed to exceed 5750rpm, but then again, the guages are of analogue type and are only accurate to a point! I believe that the speedo was pretty accurate at that point. one thing though, the car is fantastically stable at higher than normal speeds...........testament to the design and engineering of BMW

are there any calculations that can give a better idea of how fast the true speeds are?  ie. mph per 1000rpm 

 I once knew a chap who reckoned that his 1.3 cavalier would smash 125mph!........................optomism eh



Edited by barf
Back to Top
jonp View Drop Down
Senior Member I
Senior Member I


Joined: 05-October-2003
Location: England
Points: 145 		Direct Link To This Post Posted: 29-March-2004 at 17:23

I know a guy that says his old metro could do over 120.....ryhmes with 'banker'.
Back to Top
barf View Drop Down
Senior Member I
Senior Member I


Joined: 08-March-2004
Points: 130 		Direct Link To This Post Posted: 29-March-2004 at 17:28

hell fire, he must have been drinking the same looney juice as the chap in his cav!.........................was he from todmorden?
Back to Top
grimesj View Drop Down
Groupie
Groupie


Joined: 03-March-2003
Location: United Kingdom
Points: 50 		Direct Link To This Post Posted: 30-March-2004 at 12:52
I've read 149mph from the speedo of my 1996 323i coupe(?)
Back to Top
kbannon View Drop Down
Admin Group
Admin Group

E39 525i Sport Individual

Joined: 09-October-2002
Location: 64 Zoo Lane
Points: 15508 		Direct Link To This Post Posted: 30-March-2004 at 12:58
Originally posted by jonp jonp wrote:

I know a guy that says his old metro could do over 120

would you feel safe in a metro @ 60, never mind 120?
Back to Top
 Post Reply Post Reply Page  123 4>

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 10.01
Copyright ©2001-2011 Web Wiz Ltd.