racing carrier and girdle
02-17-2007, 04:10 PM
#2
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The "racing carrier" is what the ring gear bolts to... but there is not such thing as a "racing" carrier.
The "girdle" is the rear differential cover. It really doesnt do what people think it does...
The "girdle" is the rear differential cover. It really doesnt do what people think it does...
02-17-2007, 04:40 PM
#3
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https://ls1tech.com/forums/gears-axles/659094-12-bolt-better-daily-driving.html
Exotic Performance Plus believes the way a 12 bolt is connected to the TA causes distortion of the housing. Read the post for better explanation. Would a girdle help protect against this distortion?
Exotic Performance Plus believes the way a 12 bolt is connected to the TA causes distortion of the housing. Read the post for better explanation. Would a girdle help protect against this distortion?
02-17-2007, 05:13 PM
#4
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Dont need to read the post... I know the gentleman that designed the "girdle" cover, some 12 years ago. Even he will admit that its intent, was more for marketing a product and to have another product that you could sell to make money from.
What Bob was talking about is something completely un-related to your questions... and no, it will not protect against this type of distortion. Trust me... it doesnt do what most think it does. And just because this guy or that guy believes something... doesnt make it set in stone.
Will it keep the caps from distorting ?? No.
Will it keep the pinion from climbing the ring gear ?? No.
Will it keep the main caps from fracture ?? No.
Will it keep the parts in the housing when it does fail ?? Yes.
Your axle shaft will most likely fail before you get to this condition.
The problem with the cover is having too many dis-similar metals to compensate for. Sure, the cover is a great bandaid to combat main cap flex... but only if you can set up the pre-load correctly. And that is where the problems lie...
All of the dis-similar metal components used in this design theory, have different expansion and contraction rates. There is a delicate line between the correct amount of preload and too much or too little. Too much or too little is a bad thing... but to really be able to set it right... you need to know the working temperatures of the materials you are dealing with. Then you will need to educate yourself on the specifics of each material and its thermal growth... and how its thickness (or mass) effects that. Now just think... you have to do this for four different materials to come up with the correct amount of pre load. But can you do this cold or does this have to be done at temperature ??
Personally, other than myself and a few others in my circle... are the only ones that have ever instrumented different components inside an operational differential to find out these specific answers.
What Bob was talking about is something completely un-related to your questions... and no, it will not protect against this type of distortion. Trust me... it doesnt do what most think it does. And just because this guy or that guy believes something... doesnt make it set in stone.
Will it keep the caps from distorting ?? No.
Will it keep the pinion from climbing the ring gear ?? No.
Will it keep the main caps from fracture ?? No.
Will it keep the parts in the housing when it does fail ?? Yes.
Your axle shaft will most likely fail before you get to this condition.
The problem with the cover is having too many dis-similar metals to compensate for. Sure, the cover is a great bandaid to combat main cap flex... but only if you can set up the pre-load correctly. And that is where the problems lie...
All of the dis-similar metal components used in this design theory, have different expansion and contraction rates. There is a delicate line between the correct amount of preload and too much or too little. Too much or too little is a bad thing... but to really be able to set it right... you need to know the working temperatures of the materials you are dealing with. Then you will need to educate yourself on the specifics of each material and its thermal growth... and how its thickness (or mass) effects that. Now just think... you have to do this for four different materials to come up with the correct amount of pre load. But can you do this cold or does this have to be done at temperature ??
Personally, other than myself and a few others in my circle... are the only ones that have ever instrumented different components inside an operational differential to find out these specific answers.
02-17-2007, 06:09 PM
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Is the aluminum support cover(STR-OPRG10) upgrade to a Strange 12-bolt a girdle? If so, other than weight saving you must agree it isn't worth the extra $110, right? How much weight does it save anyway?
02-18-2007, 07:30 AM
#6
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Yes, it is a girdle type cover.
There is absolutely no weight savings, what-so-ever. It is much, much heaiver than a stock steel cover.
An no, its not worth the extra $110 spent. I would use those monies elsewhere.
There is absolutely no weight savings, what-so-ever. It is much, much heaiver than a stock steel cover.
An no, its not worth the extra $110 spent. I would use those monies elsewhere.