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forged t56 internals?

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Old Jun 13, 2006 | 10:13 PM
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Default forged t56 internals?

i was wondering if, all of the internals can be forged, like the all the gears and output shaft and input shaft, wouldnt this be the ultimate t56?
does anyone know of a place that does this or sells them like that let me know
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Old Jun 13, 2006 | 11:22 PM
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Just buy new, and have the internals cryo-treated
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Old Jun 14, 2006 | 12:06 AM
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Originally Posted by themack56
i was wondering if, all of the internals can be forged, like the all the gears and output shaft and input shaft, wouldnt this be the ultimate t56?
does anyone know of a place that does this or sells them like that let me know
Do you understand what forging is?

Andrew
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Old Jun 14, 2006 | 12:26 AM
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Well, the spines have to be stamped don't they? How else do you get the perfect square shape?
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Old Jun 14, 2006 | 07:04 AM
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Understanding the processes would go along way before you have someone take your money for the "majic wand" treatment.
Cryo treatment is submersion in liquid nitrogen( -320 F) AND(this is the key) controlled temperature rise. To get any significant + in strength, the core material should be selected for this processing. Just adding -on this process does / produces little gain at best IF its done correctly.
Forging is the " compaction" of material to gain the most beneficial grain flow for strength. If there is someone offering this service to a finished part , they are cheating you. All of the gears and shafts in a T56 are forged as rough parts before machining. It is not possible to do this after the fact.
The splines are rolled( between two rack/ die members), not stamped. The flat shape to the major diameter is achieved with a grinding operation.
If it is greater strength through processing & materials you want, you will have to start with the raw blanks and fully process them.
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Old Jun 14, 2006 | 11:02 AM
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Originally Posted by calhoon
Understanding the processes would go along way before you have someone take your money for the "majic wand" treatment.
Cryo treatment is submersion in liquid nitrogen( -320 F) AND(this is the key) controlled temperature rise. To get any significant + in strength, the core material should be selected for this processing. Just adding -on this process does / produces little gain at best IF its done correctly.
Forging is the " compaction" of material to gain the most beneficial grain flow for strength. If there is someone offering this service to a finished part , they are cheating you. All of the gears and shafts in a T56 are forged as rough parts before machining. It is not possible to do this after the fact.
The splines are rolled( between two rack/ die members), not stamped. The flat shape to the major diameter is achieved with a grinding operation.
If it is greater strength through processing & materials you want, you will have to start with the raw blanks and fully process them.

Thank you. You have more patience than I do. As a side note, internal splines (like on a clutch disk hub) can also be broached as well as shaped.

In a rotating assembly components can be cast or forged. The forged components are stronger for reasons posted above thus they are prefered for high performance engines.

Andrew
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Old Jun 14, 2006 | 11:41 AM
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Wouldn't that change the physical size of the object to some extent?
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Old Jun 14, 2006 | 12:00 PM
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Size would change only if the base material had inclusions/ imperfections(porous) which would be another reason to forge.
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Old Jun 14, 2006 | 03:54 PM
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Originally Posted by calhoon
If it is greater strength through processing & materials you want, you will have to start with the raw blanks and fully process them.
If this were ever to be done (on a one off basis), what would we be looking at, a $50-75K T56??
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Old Jun 14, 2006 | 05:15 PM
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Originally Posted by dailydriver
If this were ever to be done (on a one off basis), what would we be looking at, a $50-75K T56??
Did you not read what calhoon wrote? The blanks from which the current T56 internals are made are already forged. To further improve strength you would use a different grade of steel, such as 9310. The G-Force T56 uses 9310 gears and 300M mainshaft. I believe that trans is about 5-6K.

Andrew
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Old Jun 15, 2006 | 07:25 AM
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The input and cluster gear of the SRT10 Ram T56 are 9310 today.
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Old Jun 15, 2006 | 10:16 AM
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How does the cryo treatment help exactly? Is it akin to heat treatment? What about nitrating?
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Old Jun 15, 2006 | 11:23 AM
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Cyro treatment is more like a specialized tempering. I would put a nitrating ( not fully sure of the specs) processing more in th realm of surface treatment, like isotropic treatment.
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Old Jun 15, 2006 | 05:16 PM
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Originally Posted by calhoon
The input and cluster gear of the SRT10 Ram T56 are 9310 today.
It would make sense, since its such a tank.

Do you know if the SRT10 T56 is the same externally as the Viper trans?

Andrew
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Old Jun 15, 2006 | 08:22 PM
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There's are alot more to transmission gears in addition to material..pressure angles ground or cut...heat treating Gears found in "Real" racing transmissions are bar stock thats ground to the desired finish The OE short cuts with their method's for price and quanity this of course is a trade off or we'd all be buying 6 grand T56's.Based on my personal experence if you'r pushing the big HP go with the 300m I have twisted 1 5/32 26 imput shafts almost a quarter of an inch ...on a few different
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Old Jun 16, 2006 | 10:51 AM
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The picture below is of the Tex Racing T101A. Tex makes transmissions for NASCAR. You can see the difference in the race transmission compared to a street transmission. The Tex gears are fairly thin to reduce frictional losses. Keep in mind it does not see the shock loads that a drag racing transmission would see. However it does have to take the abuse of 500-600 lb/ft of torque for a long period of time. The gears are 9310 material.

Andrew
Attached Thumbnails forged t56  internals?-t101_08_web.jpg  
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Old Jun 16, 2006 | 10:57 AM
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Ill bet its nice and quiet too with those flat cut gears and wide dog teeth gears...

Originally Posted by Project GatTagO
The picture below is of the Tex Racing T101A. Tex makes transmissions for NASCAR. You can see the difference in the race transmission compared to a street transmission. The Tex gears are fairly thin to reduce frictional losses. Keep in mind it does not see the shock loads that a drag racing transmission would see. However it does have to take the abuse of 500-600 lb/ft of torque for a long period of time. The gears are 9310 material.

Andrew
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Old Jun 16, 2006 | 11:14 AM
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Originally Posted by GuitsBoy
Ill bet its nice and quiet too with those flat cut gears and wide dog teeth gears...
Race car and quiet generally don't go together.

Andrew
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Old Jun 16, 2006 | 01:23 PM
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The RAM10 T56 has slightly different gear cuttings than the Viper (and material as stated above) so not all gears are interchangeable. The ratios, however, are the same. You could completely swap out the sets, however. In addition, the truck uses a thick -wall yoke.
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Old Jun 16, 2006 | 06:35 PM
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Originally Posted by Project GatTagO
The picture below is of the Tex Racing T101A. Tex makes transmissions for NASCAR. You can see the difference in the race transmission compared to a street transmission. The Tex gears are fairly thin to reduce frictional losses. Keep in mind it does not see the shock loads that a drag racing transmission would see. However it does have to take the abuse of 500-600 lb/ft of torque for a long period of time. The gears are 9310 material.

Andrew
If I had a dime for everyone of those things I've built....The one pictured there has the new Andrews gear sets in it Tex dosent make their own gears and cases just assembles the parts G Force did their stuff for awhile but its very nice stuff you wont see to much of that trans there for very long...with no Handcuff between 2nd and third the cluster will seperate form mainshaft and cause the gears to walk on edge and dent...
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