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subframe bushings: powerflex yellow vs purple?
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11-13-2014, 07:20 AM | #67 |
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installing in a few!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-13-2014, 08:11 AM | #68 |
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Very cool. I'm looking to do this in a few weeks and I do a ton of long drives. I want it to firm up but mot ride like a go cart rattle box. No track for me. Was thinking M3, purple, or this.
Thx again.
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11-13-2014, 01:54 PM | #71 |
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only thing is I don't like bleeding brakes...motors, turbos, suspension, tranny I am fine with lol! I am seriously thinking of crimping the line, taking loose, then reinstall with no bleeding. have seen a few do this method, Any thoughts?
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-13-2014, 01:56 PM | #72 |
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full aluminium are 299.00 and "should" be a bit harsher than delrin. Apparently delrin is not to bad on NVH according to jake@motiv.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-13-2014, 02:00 PM | #73 |
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Plus you minimally want the Al sleeves rather than just straight Delrin given how brittle Delrin is... longevity is better with this setup.
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11-13-2014, 02:54 PM | #74 |
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11-13-2014, 06:19 PM | #75 |
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Hope they are good, would of had then installed but can't give a brake bleeder...may just crimp the line lol!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-14-2014, 08:58 PM | #76 |
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I can't understand why the Delrin sleeve doesn't sit flush on brace like others do? I am guessing for vibration ire some reason? Anbody know?
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-14-2014, 09:15 PM | #77 | |
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I really want to upgrade my SF bushes too, but from reading your experience and this thread i'm not too convinced on the OEM M3 bushes. When you say the full aluminium ones would be harsher, how would that actually be felt in the driver's seat? Would it be harsh over bumps? Would it cause more oversteer? I currently only have Ohlins, no other suspension mods. Planning to get an M Factory diff later next year and perhaps upgrade rear springs to swifts and M3 arms. Would full aluminium be advisable? Its a 335D btw |
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11-14-2014, 10:15 PM | #78 | |
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-15-2014, 01:41 AM | #79 | |
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11-15-2014, 04:53 AM | #80 |
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11-15-2014, 08:31 AM | #81 |
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I have Olhins with swift springs and yellow powerflex subframe bushings. My car is as comfortable as stock during normal driving conditions but under hard acceleration is uncontrollable and is very scary to drive as it TQ steers worse than any car I have driven.
I'm considering the powerflex black, group N or solid aluminum subframe bushings. I hate having power and not being able to use it. A lot of the m3 guys do solid subframe bushings and Delrin diff bushings. I already have purple diff bushings so it would make sense to do nothing less than black subframe bushings. I was with RobC during his Delrin install yesterday and can tell you they look even better in person. My only issue is they don't sit flush on the sub brace. I could see the bushing bolt break as the the sleeve hole is a lot bigger than the bolt. And it doesn't sit flush regardless of how you turn them. My question is: which bushing is harder/stiffer? (Powerflex black or group N) Once I eliminate one of these I can decide whether or not to make the jump to solids. I would like to think solids would be ok as my Ohlins are too soft. |
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11-15-2014, 08:32 AM | #82 |
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it doesn't fully seat on to it, indention isn't deep enough for brace to fully seat inside bushing. It basically bottoms out before flanges on bushing make contact with brace.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-15-2014, 10:12 AM | #83 | |
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http://www.e90post.com/forums/showth...light=justpete
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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11-15-2014, 10:58 AM | #84 | |
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You have something I have always wanted to do, the trailing arm bushings, stock I can flex with my hand and could see benefeit from this. Did you notice a difference?
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-15-2014, 11:03 AM | #85 | ||
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Would you take a pic of how your delrins sit on the subframe brace? Rob's sit 1/4 inch higher than stock. |
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11-15-2014, 11:14 AM | #86 |
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11-15-2014, 11:17 AM | #87 |
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I would not want to take those delrins out...major pitia!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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11-15-2014, 12:30 PM | #88 | |
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Drives: '11 328i '19 M6
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The trailing arm bearings went in at the same time as everything else so I couldn't say what they did by themselves although the whole point of the work was to turn the suspension into as close a facsimile as a race suspension as possible. You'd use solid adjustable trailing arms on a racecar but a street car really should have the OE parts installed to minimize damage in the event of an accident by folding up. The spherical bearings make it as solid a link as possible given this limitation.
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2011 E90 328i 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+BPC, SS+CI528+ThermoTec+SS#1+2XBurns, AKG 75D eng/trans, Al/Delrin diff/RS, CM 850, UCP, CAE, AKG DSSR, DiffsOnline 3.91 30/90 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, Aurora PR+BW spherical, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors+cooling, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 6pt cage+FIA, Braille, RT DL1Mk3
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