Cryogenic treatment for drive gears
 

I`m in the process of rebuilding my blown TRS drive and after some research I`ve decided to have the gears,shafts and bearings Cryo treated by Diversified Cryogenics in MN.

Several months ago someone had posted about repeated drive problems that were totally eliminated by this process.

I`d love to hear from someone with first hand experience with the treatment.

Thanks, Kurt.

I hear it has been tried and was not successful. it does change the way the metal is formed but that is not always good. was told to save my money.

After a couple of failiers with TRS gears (once in upper & once lower) five or so years ago and since Merc doesn't make heavy-duty forged gears for the TRS, I decided to try the (then new to me) Cryo-treatment process and buy the necessary tools and manuals and go through the whole thing myself since most local Merc. techs don't have a clue when it comes to what it takes to set up a TRS properly. The process wasn't available locally so I sent my fairly new upper and brand new lower gears off to Ohio. Had everything together, filled with Amsoil racing gear lube and on the water in 3 weeks. Not a problen since - not even any fuzz on the magnet and I am putting well over 500 hp into it. We have a good facility cryo-treating locally now and since freight is no longer a factor for me I would definitely do all bearings and shafts as well as gears next time around. (if there ever is one) Also Kurt, You might get more response to this from the TQ&A section. They are crying for stuff over there. --- Jer

Biggus - Mbam (Mark of Bam Marine fame) has done this I think. At least he sells some kind of stronger, treated, lower gear set for TRS.

Sounds like we might be getting together in January. We'll have to get cobra marty to show us the night life, he lives about 15 minutes away from Nickerson's.

Biggus,

It has worked well on motorcycle transmission parts for me. The bikes tranny takes a lot under drag racing loads, and we were blowing gears,forks,shafts etc.
Sent em out to NJ for treatment and have not had a failure since. We are talking about 9 sec. 1/4 mile machines making 200 mph top speeds.
Beyond treatments and good lubricant make sure everything is shimmed and pre-loaded properly.

Good luck!:cool:

biggus.... remember me? Bravo Drive It

I've done a fair amount of research and testing on Cyro treatment to cutting tools. The only treatments that showed a significant benefit were those that went down to the -300deg point; there are a few companies the bring the temp down to about half that and from my experience it has little to no effect. The results we saw were: 1. Stesses were removed=less breakage and greater ability to take 'hits' 2. Decreased wear = longer life 3. Incresed lubricity=linger life and more efficient.
From the tests and research I did I'd swear by it, if it is done properly. If you need shop names and #'s let me know and I can dig them up.

Steve

Thanks for the input guys! I called Diversified Cryogenics and spoke with the owner. He was very informative and seems to be really intune with this process being utilized in all forms of motorsports. I`ll be sending all the bearings, gears and shafts to them. At this point, it seems like a no brainer, the cost for treatment is $5.00/lb and there is a $100.00 minimum charge.

Tomcat, I am looking forward to the trip to Nickersons, never been to a dyno pull before!:D should be a fun weekend!

Bilgerat, you know my boat. Do you think a Bravo will hold up better than the TRS? I see way too many broken Bravos with much less power.Do you remember what side blew last time (when Dennis owned it) rh or lh rotation?

Thanks a bunch, Kurt:)

Kurt, Cryo-treated and assembled properly the TRS will outlast the stock Bravo. (pre "X" versions) The weak point is the tranny. If it's the B-W unit--should be no prob. If it's a MercTransII then you need to upgrade to a comp. Ford clutch pac. and have all tranny pump parts and shafts cryo-treated also!! --- Jer

biggus I don't recall which one it was I am sure dennnis remembers I think he just went out of town again he has a different boat now another gun pretty nice i don't know if you heard about it yet...

the bravo thing is kind of a joke I am a firm beleiver in the bravo i'm puttin gobs of power in that scarab I mess with and have hadonly minimal problems from stock b1' however I don't know if it would be worth your hassle. I also half agreee witht he other guys a trs will hold up fine and cryo the gears can only help i don't know much about it but a local welder here used to do that at some company and swears by it i imagine I also agreee with who ever said if done right temperature wise etc. as well as I beleive they will live in stock form when driven properly by someone like yourself. Those are good trannies shouldn't have any problems there... By the way did anyone decide how much power those motors make?

P.S. there are a whole lot of high horsepower fast bravo boats out there, without all that trs lbs.

Bilgerat, did Dennis buy Ruckus, the 'Gun with #6 drives and Pfaff motors?.... How`s things at LOTO? My wife and I are seriously thinking of moving there:D It`s been fun living in Maine but there is NOTHING to do in the winter.

Kurt:)

Hey man, do you have a good housing for a TRS????

hey biggus at least at loto you could sit around and wait for the apba kilo runs to be cancelled.

I had the 300Below rotors on my Dually.......made a noticable difference. My stock rotors crapped out at 12k miles! All warped and cracked.....i put the frozen rotors on with the Carbon Metalic pads and when i sold the dually at 35k miles on it it still had over half the pads left and the rotors were beautiful! :D No brake pulsing...nothing.....only complaint was it tok a little time for the pads to heat up before the would realy grab and stop but after that...watchout! If you didnt know what to expect you could tap the brakes and knock your teeth out?! :D

biggus no case sorry ... when you get ready to move let me know, maybe we can work out a business setup here