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GB: Chassis Stiffening, Gauging interest in Spoon Sports Rigid Collar kit

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GB: Chassis Stiffening, Gauging interest in Spoon Sports Rigid Collar kit

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Old 04-27-18, 10:37 PM
  #126  
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Test dummy install part 2: rears!





Here you can see that the collars for the front of the rear subframe have a tight fit around the bolt and definitely remove play from the bore. The four fronts went in without issue and helped line things up. The center and rear collars were the split style and werenít bad to squeeze up in there. Looked just like the fronts so I didnít bother to snap pics. I got everything installed and put the car back on the ground.

The drive: is it different??

Well a little bit. Itís by no means a PHENOMENAL change as Iím sure most anticipated. Claims Iíve read include reduced vibrations and stiffer chassis from these collars. Here are my observations:

It feels a bit different.

What i can BEST relate this to is akin to installing a strut bar. Itís a small change but itís not gonna knock your socks off. I drove around the neighborhood and was purposely hitting bumps and jamming through the gutters between streets. The car feels more level. A slight reduction in roll. When I cruise down the road, I found myself hitting sewer covers on purpose trying to see if I could tell a difference. It feels like my suspension does more work now. When I would hit a sewer cover, I felt less droop and bump and more...smoothness. I didnít notice a reduction in vibrations or anything. Then again Iím already on Ohlins and have poly motor mounts. Thereís no getting rid of every vibration :P

Is it worth it?

That is all gonna be in the eye of the beholder. Is it worth $500 from RHDJapan? No way. Theyíre a nice change, but I can pick plenty of things I would rather spend $500 on. Worth $200 or $250? You know, I could live with that. If I was in a position where I had already done everything else and I wanted just that little bit more, these could be worth it. It would be interesting to see a long term effect these could have on retaining a good alignment even after several track days. For a perfectionist or someone with money laying around, these are worth a shot. My alignment for my steering wheel is slightly shifted now. So Iíll need an alignment in addition to all this, but Iím preparing to swap a bunch of bushings to Mazdacomp in a week or so. So Iíll align it after.

Good product Matt Gold.

Matt
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Old 04-29-18, 11:37 AM
  #127  
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Might as well bite, the barn FD is getting a full undercarriage job.
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Old 04-30-18, 10:53 AM
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Thanks SO much MrMatt!

I can't express enough how much I appreciate the install shots and feedback.

I'll be interested to know how everything feels post-alignment and on the track.


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Old 05-08-18, 01:07 AM
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+1 for a replica set
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Old 05-10-18, 03:32 AM
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Old 05-10-18, 08:57 AM
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[QUOTE=av8r01;12273754]1. Tabbasco (1 order F & R)
2. GS+
3. Paul_3rdgen
4. rotaryfdtt
5. c00lduke
6. street-heat7
7. 13bseries ( 1 order F and R )
8. cvzg77r (F&R)
9. 7krayziboi
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11. ATX-RX
12. Spalato
13. Ptrhahn
14. Cloud9
15. artowar
16. neit_jnf (F&R)
17. bigpanda (F&R)
18. dannng (F&R)
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21. av8r01[/QUOTE
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Old 05-13-18, 10:33 PM
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Interested

1. Tabbasco (1 order F & R)
2. GS+
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18. dannng (F&R)
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Old 06-13-18, 12:32 PM
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Old 08-01-18, 12:53 AM
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Anyone else thinking about this?
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Old 08-01-18, 01:04 AM
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I'm on the list, but looking for more feedback before I buy. anyone else have these installed yet that can offer additional insight?
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Old 08-01-18, 12:57 PM
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Question

Originally Posted by MattGold View Post
Anyone else thinking about this?
How thick are these things? First thought that comes to mind is that they end up lowering the subframe and will alter suspension geometry? I'm sure an alignment would take care of that however.

Are they one time use like copper crush washers where they bite into each side to fill the voids?
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Old 08-01-18, 01:34 PM
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Originally Posted by Brekyrself View Post
How thick are these things? First thought that comes to mind is that they end up lowering the subframe and will alter suspension geometry? I'm sure an alignment would take care of that however.

Are they one time use like copper crush washers where they bite into each side to fill the voids?
Not very thick. I donít have my calipers on me, but right around 2mm if memory serves.

Car has to be aligned after install - for sure. I mean, anytime subframes are coming offf Iíd recommend it.

As for multiple uses - they say you can reuse them. But how often are we really dropping the subframe?

Either way. If someone wants to test a set and/or do a review PM me.

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Old 08-01-18, 01:36 PM
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Originally Posted by av8r01 View Post
I'm on the list, but looking for more feedback before I buy. anyone else have these installed yet that can offer additional insight?
Might make sense to research S2000, Skyline and other vehicle installs. These are a bit more widely used in those markets and have much more feedback (almost all positive).

That is if if you are looking for confirmation on the theory itself. RX7 installs seem to be a bit behind.
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Old 08-01-18, 02:51 PM
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Old 08-02-18, 07:06 PM
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I've got my set, but awaiting a whole bunch of other trick goodies to go on at one time. Once I do, will review.
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Old 08-14-18, 08:30 PM
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1. Tabbasco (1 order F & R)
2. GS+
3. Paul_3rdgen
4. rotaryfdtt
5. c00lduke
6. street-heat7
7. 13bseries ( 1 order F and R )
8. cvzg77r (F&R)
9. 7krayziboi
10. Chon
11. ATX-RX
12. Spalato
13. Ptrhahn
14. Cloud9
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19. dguy (f&r&)
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21. av8r01[/QUOTE
22. gio610 (F&R)
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24. 2d-ink (1 order of rear)

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Old 09-19-18, 11:58 AM
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Ok everyone! We're going live!

Group Buy Starts......... Now!

MAZDA RX-7 [FD3S] SUBFRAME COLLARS

Price on the Group Buy is $250. We have SIX sets in stock and ready to roll with more on the way! The first six orders should ship almost immediately, while the rest will need a week or two for production. FIRST COME, FIRST SERVED!

No coupon code needed, just order via the link above!

Group Buy pricing will run through the end of the month. So please get your orders in ASAP.
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Old 10-15-18, 11:29 AM
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Currently SOLD OUT! Thank you everyone.

But we'll do another run shortly - so feel free to pre-order on the site.

We're also getting a set of these in a certain professional drift car for some feedback at the most extreme levels.

STAY TUNED!
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