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Old 06-08-2006, 06:25 AM   #1
Gets Blown Daily
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Location: Scarghetto
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Any good docs or links regarding tuning in general?

I'm just curious if anyone can suggest some good articles, sites or forums which gives tips on tuning bmw's, or cars in general, preferrably for forced induction vehicles as well. The more information the better as I'd like to learn as much as I can.
For now I've done some light tuning below the boost range (0 ~ 3000rpm) on my car by richening the fuel a bit at idle (seemed to smooth the idle out a lot), re-calibrating my ecu to handle larger injectors, and advancing my timing by 1 or 2 degrees below 2800rpm while retarding it 1 degree when in the boost range. To be on the safer side I added some more fuel in the upper rpm ranges as well which I can feel pulling me back a little but it's probably safer. These changes seemed to give me much better accelleration off the line, and almost sling shots me in 1st from a stop which was much better than the bogging it experienced before. I also dont stall at highspeeds anymore after limiting my MAF at 4.97volts via an electronic voltage clamp. Eventually i'll buy a 3.5" one to replace it though as doing this is only a band-aid fix.
I know I'm playing with fire, but I'd like to learn none the less since I have access to a dyno for free right now

'94 Supercharged E36 325is (150,000 original km's)
-Vortech V9 G-Trim @ ~10psi w/ BOV
-Shortstack headers
-Vortech RRFPR
-255LPH Walbro fuel pump
-TEIN SS Coilovers w/ Pillowball mounts
-Keskin KT1 17x8.5 & 17x10
-Remus full catback
-Authentic Rieger Infinity I body kit
-SMT6 EMS (Untuned)

Last edited by djcontra; 06-08-2006 at 06:51 AM.
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Old 06-08-2006, 03:56 PM   #2
BMW again.
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Join Date: Feb 2002
Location: Toronto
Posts: 6,088
you know normally i wouldnt redirect you to another forum, but some of the guys on bimmerforums are pretty good at tunning, and some of the members are actual tunners themselves. its where i get most of my FI information because its probably the best in terms of forums.
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