Strut Mount and Camber Plate Comparison

[bavarian3]

you can use 2.5" springs on 60mm perch, but not vice versa unless the finished diameter of the 2.5" perch were actually smaller like 2.36". it would be very tight. might vary brand to brand.

Yeah, figures. Seems like such a small difference on paper but makes a difference in reality. A little sand paper and elbow grease? lol.

[Tbonem3]

you can use 2.5" springs on 60mm perch, but not vice versa unless the finished diameter of the 2.5" perch were actually smaller like 2.36". it would be very tight. might vary brand to brand.

[bavarian3]

No clue, I only have the GC100-A-3 pictured above, but a quick call to GC and they could tell you.

I have a set of Turner Hybrid plates on order, so I'll update this if the 60mm perches do indeed fit and add some dimensions.

I was referring to the turner 2.5 perches since they sell them. Nevertheless would love to hear if the GC perches will work. Are they(turner plates) actually in stock now?!

[fattycharged]

any idea if the 2.5"/63mm perches would work with 60mm springs?

No clue, I only have the GC100-A-3 pictured above, but a quick call to GC and they could tell you.

I have a set of Turner Hybrid plates on order, so I'll update this if the 60mm perches do indeed fit and add some dimensions.

[bavarian3]

K-Dawg, can you confirm if the GC 60mm perch fits properly on the Turner Hybrid plate? It did not fit properly on my Turner Street plates as it bottomed out on the inner profile before seating, but the profile is different where the bushing sits on the Hybrid. TIA

*Edit* as I just read this has been asked recently, should have read all the way through.

Problem with the GC perch is the inner diameter is too small, but paying $189 for a couple of 2.5" perches from Turner is tough to swallow. I may cancel my Hybrid order and just get some Vorshlags

any idea if the 2.5"/63mm perches would work with 60mm springs?

[K-Dawg]

In that case, maybe they don't fit. 🤷♂️

I don't recall trying to mix and match different parts.

[fattycharged]

60mm spring perches
I originally purchased these with the intention of using with TCK coilovers, so I ordered them with 60mm spring perches.

Ground Control 60mm spring perch stack height (perch only): 3.2mm
Turner 60mm spring perch stack height (perch only): 6.85mm



Thrust bearings
All of these plates/mounts use stock-type axial thrust bearings for the spring perch. Turner and GC both sell aftermarket thrust bearings. I’m not sure of the COO for the Turner bearing; GC claims theirs is manufactured in Germany.

BMW (Ina) thrust bearing stack height: 11.9mm?
Turner thrust bearing stack height: 11.9mm
Ground Control thrust bearing stack height: 13mm

K-Dawg, can you confirm if the GC 60mm perch fits properly on the Turner Hybrid plate? It did not fit properly on my Turner Street plates as it bottomed out on the inner profile before seating, but the profile is different where the bushing sits on the Hybrid. TIA

*Edit* as I just read this has been asked recently, should have read all the way through.

Problem with the GC perch is the inner diameter is too small, but paying $189 for a couple of 2.5" perches from Turner is tough to swallow. I may cancel my Hybrid order and just get some Vorshlags

[K-Dawg]

Bringing it back from the dead. Did the Ground Control perch work with the Turner plates? I am getting ready to go TCK SA and I would like to use the Turner plates but they no longer offer the 60mm spring perches. I believe the TCK's have 14mm shafts, so that may present a problem as well.

I don't remember if I specifically tried it, but I don't see why the GC perch wouldn't work with the Turner plates. OE strut mounts, Turner and GC all use nearly identical (and probably interchangeable) thrust bearings. You could also use the GC perches with OE strut mounts.

r4dr reports that 6679K18 from McMaster-Carr will work as well. I wish I had a good coilover option other than Ohlins that is compatible with the stock upper mount.

https://nam3forum.com/forums/forum/m...fts#post180144

The same methods for adaptation used in that thread could also be used to adapt the OE strut mounts for use with TCK DA coilovers. You'll probably want to be near stock height, but I haven't done the math.

[usdmej]

Yes! It’s the popping at low speeds. It’s now a vague memory for me but thanks for chiming in, I don’t want to be the outlier here crapping on GC units lol

when i had TCK camber plates with this problem a race shop diagnosed it as too much stiction in the bearing. I emailed TCK about it and they said it was a small batch problem with some of their camber plates and replaced it for me free of charge (minus shipping).

[D-O]

r4dr reports that 6679K18 from McMaster-Carr will work as well. I wish I had a good coilover option other than Ohlins that is compatible with the stock upper mount.

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/179357-turner-street-camber-plates-14mm-shafts#post180144

[Tbonem3]

https://www.amazon.com/gp/product/B07JLPJJ1R/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

[Ubaderb]

Just guessing here, but I bet it has to do with 14mm versus 16mm shaft and/or maybe the square shoulder (koni) versus tapered (bilstein).

I solved my issue (that TMS plates only work with 16mm not 14mm - my MCS are 14mm) by using some bronze bearings that were 14mm ID and 16mm od. It perfectly picked up the slack and filled out the TMS bearing 16mm ID.

If anyone has a specific question about fitment or compatability, feel free to PM me. Once I know the details, I bet I can figure it out.

Do you still have the part number and where you ordered the bearings from?

[George Hill]

I know its a loaded question, but how much harsher are the Vorshlags than the Turners?

I think that's going to be hard to answer because I've never done a back to back test with the plates being the only change. I think the solid spherical bearing is likely harder on strut towers I generally prefer to have something "softer" for street cars. Whether that's a real concern or not, IDK. With that said most people making this change are going to a stiffer spring anyways vs stock and worn out. If you are hyper sensitive then maybe you will, I would imagine that most don't unless we are talking about a high speed impact and even then, maybe?

Also - any tips on a 60mm spring perch for the Turners?

Sorry, don't have an answer for you here.

[bigjae46]

I know its a loaded question, but how much harsher are the Vorshlags than the Turners?

Also - any tips on a 60mm spring perch for the Turners?

Thanks.

I didn’t notice a difference in ride between the Ground control and Vorshlags on my E90. The GCs were always clunking Driven both on the street and track.

I’ve only had the Vorshlags on my E46.

[D-O]

I've installed GCs on a few cars and not everyone makes noise, but of all the cars I've installed camber plates onto its the GC ones that make noise... and primarily its popping with low speed turns. We generally don't install GCs anymore.

Right now we put:
-Vorshlag on track focused cars.
-TMS on street cars that need more camber OR planning for the future/don't want to buy stock when you can buy these at a similar price.
-Stock on "OE" cars.

I know its a loaded question, but how much harsher are the Vorshlags than the Turners?

Also - any tips on a 60mm spring perch for the Turners?

Thanks.