Cryogenicly treating the NV5600

J

JasonCzerak

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Aug 10, 2006
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So, I'm going for it!

I plan on doing 5th and 6th gears.

Any other parts should I request get treated? Like syncros?
 
I just dropped off some parts from my NV4500 to get cryoed. I've ripped the teeth off of 2nd and 3rd gears two seperate times. I'm having them do the 2nd, 3rd, 5th gears, 5th syncro cone, input shaft, mainshaft and countershaft. I'm really hoping I don't have to rebuild this thing again after this.
 
If its cheap enough I would do everything I could. I dont know what it cost to cryo tranny parts though.
 
yeah, I suppose 'everything" won't hurt. but its cost based on space available in this huge basket. So things like first gear are not necessary
 
I would also get the main shaft treated aswell. I know in the sled pulling world, the mainshaft is usually the first thing to break in them.
 
So I got off the phone with Zumbrota Gear.

$300 to cryo 5th (it's the main shaft as well) 6th. And I've asked to add the barrings in as well and anything else that'll keep it under $400. I MAY have the parts by Friday and trans put back together. If not, next Monday.

There's also another process that kinda puts a coating on the metal. I forgot what it's called and I've emailed the guy to relay the term. Should help with drag on the gears.

This should be interesting!
 
From Zumbrota this is that second step

cyro with blueing is where you gain slipperyness or less friction. the "big gain" is typically from in the differential area but they claim that all bearings and drivetrian components that are done give you an advantage also
Click to expand...
 
You should be very careful choosing a cryo shop - hate to say it, but most cryogenic processors don't do a proper job... similiar to choosing a machine shop - they all remove metal, but quality varies.

Cryo should cost less than $10/lb, have a minimum cold cycle time of 24 hours and nearly as much tempering time... if the vendor is using dry ice, mechanical refrigeration, steep cold-soak ramps or no heat tempering - don't waste your money.

These types of questions are welcomed by any successful, reputable cryogenic processor - most companies in the field don't last more than 5 years and demonstrate a success rate of less than 20%.

p.s. don't think I'd recommend the "blueing" treatment either - at least not without a much more accurate description of what HPC treatment they're selling you.
 
XLR8R said:
You should be very careful choosing a cryo shop - hate to say it, but most cryogenic processors don't do a proper job... similiar to choosing a machine shop - they all remove metal, but quality varies.

Cryo should cost less than $10/lb, have a minimum cold cycle time of 24 hours and nearly as much tempering time... if the vendor is using dry ice, mechanical refrigeration, steep cold-soak ramps or no heat tempering - don't waste your money.

These types of questions are welcomed by any successful, reputable cryogenic processor - most companies in the field don't last more than 5 years and demonstrate a success rate of less than 20%.

p.s. don't think I'd recommend the "blueing" treatment either - at least not without a much more accurate description of what HPC treatment they're selling you.
Click to expand...


Very good advice I was looking into cryoing some stuff, and when I asked those questions to some, I got lots of silence on the other end of the phone.
 
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