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      12-02-2019, 02:13 PM   #40
andrey_gta
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Drives: 130i coupé ;)
Join Date: Nov 2011
Location: Bimmerpost

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2008 BMW 128i  [10.00]
Quote:
Originally Posted by atr_hugo View Post
Significantly increasing the spring rate (and upping the 'natural frequency') of the vehicle can put the SAs into 'perma-soft' mode. They're made to be stiff for a natural frequency of around 1 hz, softening up as the frequency rises (small, sharp impacts). IIRC, the M-Sport suspension of the 135s are around 1.25 to 1.5 hz.
Would you discourage people to run these with Swift springs? They have the rates lbs 201/ 503.
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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