The Miata Bushing MEGAthread: Heirarchy, DIY delrin dimensions, info and discussion - Page 11 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-20-2016, 04:31 PM   #201
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Are there any better OTS solutions for sway bars? Any plans for a SadFAB option? My front RB bar using the ES lube & poly bushings it came with is pretty damn hard to move at all with both ends disconnected.

Does a delrin sandwich madjak posted above improve things over poly noticibly? (I'm not sure if the friction coefficient between a painted bar & delrin bushing is going to be as good as bare steel on delrin - although it's prob better than poly/paint).
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Old 12-20-2016, 04:35 PM   #202
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I like the delrin sandwich idea. We have tossed around delrin swaybar bushings, and its on a napkin somewhere. But don't expect or plan on anything from us in the near future.
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Old 12-20-2016, 05:26 PM   #203
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Quote:
Originally Posted by Junkwhale View Post
Are there any better OTS solutions for sway bars? Any plans for a SadFAB option? My front RB bar using the ES lube & poly bushings it came with is pretty damn hard to move at all with both ends disconnected.

Does a delrin sandwich madjak posted above improve things over poly noticibly? (I'm not sure if the friction coefficient between a painted bar & delrin bushing is going to be as good as bare steel on delrin - although it's prob better than poly/paint).
Have you shaved the poly bushing or shimmed the bracket? The RB bracket squishes the bushing badly once you snug it up unless you do one of those.
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Old 12-20-2016, 05:53 PM   #204
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I made a set, never had time to install them on the e-stock car. I'm just going to buy a small fortune racing bar for the real racecar because its so cheap.
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Old 12-20-2016, 06:06 PM   #205
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Have you shaved the poly bushing or shimmed the bracket? The RB bracket squishes the bushing badly once you snug it up unless you do one of those.
Yeah I shimmed the bolts/bracket with washers to make sure it wasn't too squished which did help, it still takes a disturbing amount of force to make it move.

Looks like you can get pillow block bearings like this in the right sizes for our sway bars, very expensive though:
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Old 12-20-2016, 06:08 PM   #206
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Quote:
Originally Posted by Junkwhale View Post
Yeah I shimmed the bolts/bracket with washers to make sure it wasn't too squished which did help, it still takes a disturbing amount of force to make it move.

Something like this looks good if it came in the right size (can only find 1" and 1.25" ID, not 1.125"):


Looks like they have bronze & PFTE type ones: PB4-1250-B - Pillow Block, Self Aligning, SAE 840 Bronze Bearing Spyraflo
Except you need a split bearing to be able to put it on the normal sway bars, and I never found one with a small enough bolt spacing.
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Old 12-20-2016, 06:18 PM   #207
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The split delrin block works well for something so simple. The paint has worn a little where it rubs on the delrin. Between the rodend end links and solid mounts on the sway I get a lot of clunks and creaks in the back.

I'll do a similar mod on the front.
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Old 12-20-2016, 08:44 PM   #208
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Try getting that on a sway bar without going way oversized and using a split bushing. You can find roller bearing pillow blocks for about $30 if you know where to look.

I have a few ideas for sway bushings, we're just too busy with regular bushings and other projects right now.
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Old 02-13-2017, 05:50 PM   #209
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More better. This is one of our customers doing a comparison.

Last edited by hi_im_sean; 02-13-2017 at 10:48 PM.
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Old 02-13-2017, 08:12 PM   #210
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Is it still possible to get spacers for the RUCA outer spherical to use one of the camber adjust control arms?
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Old 02-14-2017, 01:38 PM   #212
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So it still has a few poly bushings. As I understand, the magic is in the bronze sleeves, so delrin is just one mo betta?
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Old 02-14-2017, 03:23 PM   #213
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Yes delrin more better... and as mentioned in OP, poly is in a few locations to prevent bind.
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Old 02-15-2017, 02:30 PM   #214
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I get that, but the level of freedom demonstrated in the video will be nearly the same with all poly bushings or significantly different?
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Old 02-15-2017, 02:32 PM   #215
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Should be the same. Just less deflection.
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Old 02-15-2017, 02:55 PM   #216
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Quote:
Originally Posted by Chilicharger665 View Post
I get that, but the level of freedom demonstrated in the video will be nearly the same with all poly bushings or significantly different?
Im not sure I understand. The reduced friction in the poly bushings are a result of the bronze bearings. So any poly bushing with the bronze bearings will have similar levels of freedom.
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Old 02-15-2017, 03:02 PM   #217
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That is what I was getting at. The secret sauce is your bronze bearings, the choice of material is how much stiffness you can bear.

What I don't get it why you guys are the only ones doing this. It is a very known issue that poly bushings like to bind and have lots of friction. You and bbundy's similar solutions are what make mt.net such a cool place.

Is the process as simple as measuring bearings to put in any bushing? So you could theoretically make them for any car?
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Old 02-15-2017, 03:04 PM   #218
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Its actually even more simple than that. ES all pretty much use standard bushing and sleeve sizes. So you just need a catalog of sleeves and bearings that fit their bushings. We are working on a set for a 240sx, but may be expanding in the future.
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Old 02-15-2017, 03:12 PM   #219
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Well hot damn, I have an ND that I keep on waffling between selling or keeping and ES has already released a bushing kit for it... The stock car is appalling soft. What information would you need to start on a kit like that?
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Old 02-15-2017, 03:13 PM   #220
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ES part numbers and some sort of downpayment. We are very busy right now. Lots of orders coming in. Email us.
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