BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      04-29-2021, 06:21 AM   #45
spidertri
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It's the strut spacer that Fe1rx designed. This is the only decent picture I have of it installed.


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      04-29-2021, 07:07 PM   #46
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^ Thanks

That requires a weld, correct?
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      04-29-2021, 09:09 PM   #47
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Quote:
Originally Posted by Bullitt View Post
^ Thanks

That requires a weld, correct?
No, it is a slip fit.

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      06-16-2021, 06:50 AM   #48
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goodjob

cool guy!
I was looking for the Camber/Caster Plates solution of ohlins 1m (E82) and saw your article.
I think you have calculated very carefully.
I have a lot of technical questions and I want to ask you.
if you have a facebook messenger or email?
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      06-16-2021, 10:25 AM   #49
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From what I understand the 1M has very different camber plates and front struts. I don't have any experience with what is required on that setup.
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      06-17-2021, 09:56 PM   #50
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Question

Understand! Anyway, thanks!
But I would like to ask you some more information:

About choosing "swift sping":
Front Swift springs:
part No. : Z65-178-070 ???

Quote:
Originally Posted by spidertri View Post
- 7.0 kgf/mm (~392lb) 7"

Rear Swift springs:
part No. : Z65-203-120 ???

Quote:
Originally Posted by spidertri View Post
- 12.0 kgf/mm (~672lb) 8"
camber plate

The 3DM camber plate you are using.
Do you choose PERCH SIZE : 2.5"(65MM)?


Compared with the original "ohlins spring" and the modified "swift spring", the "swift spring" will make the car drive better? Or will it become "harder"?
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      06-18-2021, 05:52 AM   #51
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Yeah, 65mm perch. In the swift part number:
- Z65 is the spring diameter in mm
- 178 is the length in mm
- 070 is the rate in kgf/mm

Swift springs are advertised as having less coils for the same height and rate as other springs. So compared to a spring with more coils, the swift spring will have more usable stroke before coil bind. Theoretically, if you replaced the ohlins springs with swifts and kept the rate and length the same the swifts would ride better. When you increase the spring rate it will get harder.

I chose the swift springs because I wanted the most usable stroke from the spring.
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      08-10-2021, 06:49 AM   #52
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If anyone is interested, here's a new Apex 17x9 ET52 wheel with a 12mm spacer. 2.5mm of clearance between the wheel and strut.

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      08-10-2021, 04:35 PM   #53
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Is rubber gonna clear that spacer?
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      08-10-2021, 05:15 PM   #54
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A 255 on a 9" wheel is usually pretty flush with the lip, so I suspect the tire will have sufficient clearance. The tire may rub lightly on the shock body under load on occasion, but that's not a big deal. I've run ~1mm of tire clearance to my perch on my M3 for a year now with no issues.
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      08-23-2021, 05:11 PM   #55
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Okay, my 255 RT660s got here the other day, I had a couple mounted to start checking clearances and figuring out the fitment.

So the lip of the tire sticks out 3mm past the lip of the wheel. But it isn't right next to the wheel lip, so you do get a little more clearance due to the angle of the strut.

I did not swap springs yet, wanted to see what it would take to fit the wheels as-is. I have a bunch of spacers so, for fitment check only, I stacked spacers to check clearances.

With 17mm of spacer, the tire clears the spring perch by less than 1mm. Tire clears the strut body by 6mm according to the stack of feeler gauge I was able to fit in there.

Outside of the tire is very flush with the fender. I did not drive the car, just lowered it to the ground and rolled back and forth to settle the suspension.

My plan is to go to a 6" spring and run a 15mm spacer.

The rear fit with no issue.





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