2.8 manifold upgrade

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dansutton
Joined: Thu 11 Aug, 2005 21:10
Posts: 54

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Location: Bolton

2.8 manifold upgrade

Post by dansutton » Sat 01 Oct, 2005 23:45

seen alot of topics about having the manifold modified with a 325i was wondering if it makes much difference. If i was to do it i would only have this the remap and an airfilter done i'd leave the exhaust as it is just wondering peoples opinions about whether it's worth doin thanks dan.

Fixer
Joined: Sat 18 Sep, 2004 02:08
Posts: 707

  Z3 roadster 2.8
Location: Wakefield
Contact:

Post by Fixer » Sat 01 Oct, 2005 23:59

Jason at ChippedUk said the 2.8 would be fine with the stock exhaust, PM him and ask if its the same for yours.
manifold and BBTB is a good upgrade, but you.ve already read that I think.
Mods
AC Body Kit
M50 Manifold & BBTB Kit
Stainless Exhaust M style
Remap (Chipped uk )
Gruppe m rep induction kit
Angel Eyes (Chromeline Design)
Strong Strut Front & Rear
White lenses, side repeaters etc

Ludo
Joined: Wed 17 Nov, 2004 16:46
Posts: 211

  Z3 coupe 2.8

Post by Ludo » Mon 03 Oct, 2005 10:17

Dan,

difference is huge with the M50 manifold, definitely a must do if you have a 2.8L single vanos (built date <09/98). change the car, especially above 4500rpm, pulls much stronger.
easy mod, prooven results, no brainer! :wink:

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topfuelking
Joined: Sat 26 Feb, 2005 15:13
Posts: 674

  Z3 roadster 2.8 supe
Location: Pays de la Loire

Post by topfuelking » Mon 03 Oct, 2005 17:21

dan i have this mod with the stock exhaust
and yes it's worth doing makes it a 150 mph car on the clock <a href='http://www.smileycentral.com/?partner=ZSzeb008_ZC' target='_blank'><img src='http://smileys.smileycentral.com/cat/36/36_1_12.gif' alt='Wink' border=0></a>
THANKS MARC
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c_w
Joined: Thu 19 Aug, 2004 17:50
Posts: 4032

  M roadster S50

Post by c_w » Tue 04 Oct, 2005 12:27

I wonder why both the single vanos and double vanos engines are rated at 193bhp as my 1999 double vanos 2.8 pulled well at the top end and felt more powerful than the figures suggest, maybe they are but "officially" still rated at 193bhp?

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stu
Site Admin
Joined: Fri 10 Oct, 2003 18:49
Posts: 3540

  Z3 roadster 2.8 supe
Location: On the edge!

Post by stu » Tue 04 Oct, 2005 15:14

c_w wrote:I wonder why both the single vanos and double vanos engines are rated at 193bhp as my 1999 double vanos 2.8 pulled well at the top end and felt more powerful than the figures suggest, maybe they are but "officially" still rated at 193bhp?
Would tend to agree as against 3.0's (before the blower) there was virtually no difference through the gears. Caveat is that I don't know of the gearing was different as our 2.8 is at the redline about 150 indicated (on the autobahn) which translates to 140 GPS verified.

I seem to remember the 3.0's are rated as faster than 150 so must have higher max rpm or higher gearing (hence similar through the gears)???
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