Googling led me to this page:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=28&ved=0CIE CEBYwGw&url=http%3A%2F%2Fwww.rzcrewgarage.com%2F%2 3!honda-rigid-collars-kit%2Fc1mhk&ei=oI6XU8OMHsqOyASwkoCgAg&usg=AFQjCNFA _7UuJr3fIw4U9GtRYoIRerIcTg

has any heard of this RZ Crew? They have a rigid collar kit similar to the spoon kit and they also have the rear collars available, too!

I have been contemplating this mod for quite sometime but still have yet to hear of anyone advocating this other than the spoon kool aid videos.

 

solid find it seems. they are just machined Al and if they fit.... they work just as good as that spoon kool aid. Let us know how they fit?

 

What does this do/prevent?
Why did Honda leave a gap like that in the first place?

 

Nothing


Because it isn't a problem.

 

If you watch the spoon kool aid video, during assembly of the s2000 the powertrain & suspension are attached to the subframe which is then assembled to the chassis as 1 unit with the subframe being bolted in at this point. The subrame holes are slightly larger than the bolts to attach the subframe to the chassis so that you have a bit of tolerance when attaching one to the other. Basically it makes it easier for manufacturing at the cost of tolerance.

the side effect is that this allows for potential alignment differences from one side to the other the other aspect is that the lateral and vertical gap between the subframe and frame and the subframe/frame and bolts create and undesired spring effect or play like our factory top hats (I'm guessing).

The rigid collars act like spacers and crush washers to take up the slack (again supposedly b/c I don't have them) and make the car (feel) more connected much like sphericals or solid bushings.

I do know the subframe can shift over time which is why when we do alignments we should check the subframe bolt torque specs, a la robrob (http://robrobinette.com/S2000Alignment.htm), so for me I have been considering this for sheer factor of perhaps stretching out intervals between alignments.

 

IMHO, it's like buying any other aftermarket part. The guys who bought and installed the kit noted the changes. The guys who don't the kit just talk about how unnecessary they are.

From my experience, I have taken 85+ year old grandparents in my CR before and after the install when I was on stock CR suspension. They asked if I changed something in the car because it felt more comfortable to them. To me, the $200 Spoon Rigid Collar was worth it, but everybody's experiences are different.

 

Completely agree. The difference is readily apparent to anyone has any business driving a car quickly and even those that couldn't care less about cars or driving. If someone told me they have driven an S2000 with and without the rigid collars back to back and couldn't tell a difference, I would stop listening to anything they had to say about cars.

To the OP: If search you will find plenty of detailed reviews of SPOON rigid collars on s2ki. And if you have any self respect you should purchase them from the company that took the time to test and develop them.

 

It does nothing. Make sure your sub-frame is torqued to spec and it will not move.

 

I invite everyone on s2ki to stop listening to anything this person has to say about driving and automotive engineering.

Same goes for this person. Completely missing the point. Speaking on something you have no experience testing is a waste of everyone's time, including your own.

 

You really think the sub-frame is sliding around during cornering Andrew?