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View Full Version : Modded Euro 328 (260+ BHP) - 24lb injectors?



T1000
03-07-2007, 04:58 PM
I'm running a fairly modified Euro 328 (M52) which on its last dyno run hit 263 BHP & 246 lbs/ft (corrected flywheel figures) - I would post a link to the dyno plot but apparently "my account doesn't have permissions to do so" ??

Anyway, my engine mods are:

PAR CAI
M50 manifold conversion
BBTB
US M3 S50 cams
Supersprint de-cat section
Remus back-box
Custom ECU map
Eurosport underdrive Pulleys (inc alternator)
Viscous Fan-delete
Adjustable fuel pressure regulator (currently running 4.0 BAR - stock is 3.5 BAR)

What I'd like is a bit of advice about a move to larger injectors. BTW I use UK Super Unleaded only which is 98 RON - just in case that has any bearing?

I'm considering a move to 24LB injectors but I'm not exactly sure if there are any benefits assuming my current setup is running fine? I don't seem to have any noticeable flat spots and my dyno plot shows a nice smooth curve.

I'm also considering getting my current injectors ultrasonically cleaned but might bypass this for 24LB injectors instead.

Any thoughts / advice would be much appreciated!!

bigbore
03-07-2007, 05:56 PM
yeah you'll get gains, more air needs more fuel.

T1000
03-07-2007, 06:16 PM
Thanks for that.

I kind of figured it'd make sense but I've seen quite a few posts on here stating that unless you're up at 270+ BHP the stock injectors are fine???

arakele
03-07-2007, 06:16 PM
email me your dyno sheet and I can post it for you, you need 35 or so posts before you can post links/images

arakele AT gmail DOT com

T1000
03-07-2007, 06:21 PM
email me your dyno sheet and I can post it for you, you need 35 or so posts before you can post links/images

Ahhh....that explains it then.

Email sent - thanks!!

rocket859
03-07-2007, 06:34 PM
Shoot me a link like this (wwwdotyaddadotcom/etc.../) and il reformat it for you and put the pic up.

T1000
03-07-2007, 06:40 PM
OK, there's three of them (BHP, Torque / Lambda):


**dyno plots shown below - many thanks to rocket859!!**

rocket859
03-07-2007, 06:41 PM
http://www.328sport.pwp.blueyonder.co.uk/forum_pics/gforce/dyno3.jpghttp://www.328sport.pwp.blueyonder.co.uk/forum_pics/gforce/dyno2.jpghttp://www.328sport.pwp.blueyonder.co.uk/forum_pics/gforce/dyno1.jpg