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      12-30-2012, 10:18 PM   #76
benzy89
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Drives: '08 E90 335i
Join Date: Jan 2012
Location: Northern NJ

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2008 BMW 335i  [3.75]
Quote:
Originally Posted by erm324 View Post
LM was running the smaller pulley and meth....FACT
A few psi is going to bump the power up quite a bit (me and him were the texting the day he put it on and couldnt believe the difference in the cars performance with the smaller pulley) . Your not understanding me, so I will repeat myself - the combination of him having a higher boost pulley and meth (doing the same job as the intercooler at cooling the IATs) and fully catless vs the other guy having 20inch wheels (which from what I've seen rob about 20-30whp on a dyno) and HFC will make that a close race.
FACT, he wasn't... The smallest pulley he ran was the 550 "EURO" pulley. The 575 pulley didn't fit his supercharger (the pulley needed to be shaved down if it was going to line up properly with the belts), so back to my original statement: until 120+, there is not a huge difference in performance (from a rolling start) between a "550 Euro Pulley" ESS, Fully Catless vs. a ESS 600 with a full Akrapovic Exhaust (both DCT). On a properly prepared track with a weight reduced car, then maybe it's more noticeable.


And it's great that you "texted" about this, but I saw the car before/after the pulley changes, filmed the video of those runs & LM showed me the difference in sizes his Euro pulley & the 575 pulley (with a caliper properly measured, there is a 3 mm difference). The meth was also ditched at this point because it wasn't making a noticeable difference in performance.