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BMR Suspension's CB762 4-Piece IRS Subframe Brace System, Production has commenced!

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crcpdx

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While I am not refuting your conclusion, I don't think going by purely "felt the same" is enough of a test to determine if these 2 pieces together have no additional benefits. There is a lot of things going on in a chassis/suspension that we the drivers won't necessarily feel but can be either detrimental or beneficial. I am a big proponent of stiff chassis, low deflection or flex and allowing the actual parts that are designed to move do all the moving, i.e. shocks/struts & springs.

IMO anything that adds to the rigidity of the chassis and fixed suspension components is a plus, as long as NVH is kept at bay.
I already have the CB005/Steeda alignement pins installed and have a CB762&TCA048 waiting for install.
Agreed by felt the same I should have been more specific The chassis didn't get any stiffer, no wheel hop when I removed and my track times were the same before and after. I don't autocross so can't speak to lateral movement except from a canyon carving experience on the street. Since you brought up NVH I'll through in my 2 cents in on bmr end links. They will make your ride harsh so just something else to keep in mind while buttoning up the rear.
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Torinate

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Bringing this back up. I read most of the pages but didn’t see an answer about the convertibles.

So, what’s the consensus on shoring up my convertibles rear end? What parts fit and what don’t?

What will make the biggest difference?

I have Steeda jacking rails only right now.

I have to do something to take the rear end though!!

thanks!
 

ARDrummond25

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Okay I read all 15 pages of this and I have questions for @BMR Tech (or anyone who’s an expert).

1) is the suggested RLCA bearing part number BK081 (to partner with 762 and 005)?
2) would you still recommend installing the rear camber lockout (WAK761) or is that kind of an unrelated waste in combo with the above
3) does it seem practical to ditch the steeda jacking rails since I’m adding weight and the bmr parts provide convenient jacking points?

Context is a road course focused GT350. Home track is Laguna Seca.
 
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BMR Tech

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Bringing this back up. I read most of the pages but didn’t see an answer about the convertibles.

So, what’s the consensus on shoring up my convertibles rear end? What parts fit and what don’t?

What will make the biggest difference?

I have Steeda jacking rails only right now.

I have to do something to take the rear end though!!

thanks!
For the convertibles due to the additional factory bracing here are the parts that most got with .

Springs of your choice SP763 or SPD763 minimum drop seem to be very popular.

CB010
TCA048
BK081
VIK-B258 for a street car
VIK-B358AM for more of a drag car
 

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BMR Tech

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Okay I read all 15 pages of this and I have questions for @BMR Tech (or anyone who’s an expert).

1) is the suggested RLCA bearing part number BK081 (to partner with 762 and 005)?
2) would you still recommend installing the rear camber lockout (WAK761) or is that kind of an unrelated waste in combo with the above
3) does it seem practical to ditch the steeda jacking rails since I’m adding weight and the bmr parts provide convenient jacking points?

Context is a road course focused GT350. Home track is Laguna Seca.

1. That is a great combo very popular and works well.
2. WAL761 is a great part for the price and eliminates the factory eccentric bolt slipping under hard use .
3. Those jacking rails may not work with our CB762, a lot of people use CB005 for jacking points so yes you could do that
 

The01

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CB762 work with the larger BMR jacking Rails? Or only low profile
 

jpadilla05.0

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Anyone else squeak after a wash or rain? Kinda annoying driving down the street n going squeak squeak squuueeek
 

The01

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Anyone else squeak after a wash or rain? Kinda annoying driving down the street n going squeak squeak squuueeek
Living in FL, I’ve had this stuff on a very long time through a ton of rain. Never once heard squeaking. I have CB5,762 & had Rails. Nothing.
 

jpadilla05.0

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Living in FL, I’ve had this stuff on a very long time through a ton of rain. Never once heard squeaking. I have CB5,762 & had Rails. Nothing.
Thats weird, mine after a wash or rain it'll squeak when I got over bumps, it'll take a look at it again
 

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Mine are in and I like them. Haven't yet had time to really test, as I am sorting out some other things as well, but it certainly appears that the wheel hop is gone.
 

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I've found that a combination of the 762 kit and poly subframe bushings gives the rear of the car a very direct and composed feeling. It seems to reduce understeer, but not at the expense of rear grip or stability.
 

StangTime

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I've found that a combination of the 762 kit and poly subframe bushings gives the rear of the car a very direct and composed feeling. It seems to reduce understeer, but not at the expense of rear grip or stability.
What is the part# for the subframe bushings? Seems to be a few options.
 

Michael_vroomvroom

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I thought about the CB005, which seems to have many rave reviews, but after reading more, especially in this thread, I'm wondering if maybe the CB762 is more suited for me.
I'm interested in cornering and stability during braking on the track (though at my novice level I've not yet experienced instability during braking). Very little interest in drag-type racing. What difference can I expect to feel with the CB762?

Also, does this work with Steeda's "Ultra Lite Low-Profile Chassis Jacking Rails"?
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