alternative to 12-bolt
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alternative to 12-bolt 
Click here to see VideoHey guys I'm one of the owners of StreetFire.net and have owned a number of LSx powered cars and long-time member of LS1tech and my company provides the services for video.ls1tech.com.
We've been out at SEMA all week interviewing companies that we find particularly cool. Got talking to Crane Cams about a new process they have called Mikronite. One of their employees has a late model f-body (forgot the year) with 420rwhp + 200 shot of nitrous on 4.10 gears treated with their process and has 40 runs on them and when pulled out they looked normal.
This was after stock 4.10 gears died after like 13-14 runs. Pretty impressive. I know my 450rwhp 93 T/A had no trouble ripping the teeth off of 3.23 gears which are supposed to be stronger.
Here's the interview. Might be worth checking out. I've got a CTS-V now and posted this on cadillacforums since a lot of us are having trouble with those rear-ends.
Originally Posted by Chris Jones
Click here to see VideoHey guys I'm one of the owners of StreetFire.net and have owned a number of LSx powered cars and long-time member of LS1tech and my company provides the services for video.ls1tech.com.
We've been out at SEMA all week interviewing companies that we find particularly cool. Got talking to Crane Cams about a new process they have called Mikronite. One of their employees has a late model f-body (forgot the year) with 420rwhp + 200 shot of nitrous on 4.10 gears treated with their process and has 40 runs on them and when pulled out they looked normal.
This was after stock 4.10 gears died after like 13-14 runs. Pretty impressive. I know my 450rwhp 93 T/A had no trouble ripping the teeth off of 3.23 gears which are supposed to be stronger.
Here's the interview. Might be worth checking out. I've got a CTS-V now and posted this on cadillacforums since a lot of us are having trouble with those rear-ends.
Chris the firebird that is mentioned in the interview is it a M6? How about any info on the 60' times if you all talked about it, to get an idea of how hard the car is leaving the line.
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Surface processing does not alter the strength of the base material. Fatigue cracks initiate at the surface at small discontinuities, but the 7.5" teeth sheer off, meaning that the base material isn't strong enough.
The process probably works, but only on parts that fail due to fatigue, such as valvesprings.
I'm REALLY surprised that no one has had the idea to offer upgraded metallurgy 7.5" gearsets. There are plenty of materials available that are better than the stock gear material. For instance, 4340 is higher strength. There's also a new European alloy steel that tops 4340 in strength, but I can't remember the designation.
Mike
The process probably works, but only on parts that fail due to fatigue, such as valvesprings.
I'm REALLY surprised that no one has had the idea to offer upgraded metallurgy 7.5" gearsets. There are plenty of materials available that are better than the stock gear material. For instance, 4340 is higher strength. There's also a new European alloy steel that tops 4340 in strength, but I can't remember the designation.
Mike
https://ls1tech.com/forums/showthrea...ight=mikronite
Hopefully mrr23 will come in a tell us some more about his experiance with his coated gears, I guess hes the guy they are talking about in the video...
Hopefully mrr23 will come in a tell us some more about his experiance with his coated gears, I guess hes the guy they are talking about in the video...
Originally Posted by engineermike
Surface processing does not alter the strength of the base material. Fatigue cracks initiate at the surface at small discontinuities, but the 7.5" teeth sheer off, meaning that the base material isn't strong enough.
The process probably works, but only on parts that fail due to fatigue, such as valvesprings.
I'm REALLY surprised that no one has had the idea to offer upgraded metallurgy 7.5" gearsets. There are plenty of materials available that are better than the stock gear material. For instance, 4340 is higher strength. There's also a new European alloy steel that tops 4340 in strength, but I can't remember the designation.
Mike
The process probably works, but only on parts that fail due to fatigue, such as valvesprings.
I'm REALLY surprised that no one has had the idea to offer upgraded metallurgy 7.5" gearsets. There are plenty of materials available that are better than the stock gear material. For instance, 4340 is higher strength. There's also a new European alloy steel that tops 4340 in strength, but I can't remember the designation.
Mike
Originally Posted by Chris Jones
We've been out at SEMA all week interviewing companies that we find particularly cool. Got talking to Crane Cams about a new process they have called Mikronite. One of their employees has a late model f-body (forgot the year) with 420rwhp + 200 shot of nitrous on 4.10 gears treated with their process and has 40 runs on them and when pulled out they looked normal.
This was after stock 4.10 gears died after like 13-14 runs.
This was after stock 4.10 gears died after like 13-14 runs.
in the first test, there were two sets of 4.10 gears involved. the first set was stock. the second set was the mikronite processed gears. this was to compare for hp gains/losses, sound differences, and higher/lower temps. i don't have a copy of the unprocessed vs processed gear dyno, but if i remember correctly, there was about a 7 rwhp gain and 30* lower temps. also, the gear set was quieter with the process. i kept these gears in my car from may 2005 until about october 2005. going to the track and driving everyday. so, estimated 5000 miles and many 200 (motor rated) n2o runs. whe we pulled this set of hears out for the next round of testing, it still looking just like they did when we put them in.
then, in october, again through vinci high performance, we did another set of testing for mikronite. this time it was with 3.73 gears. here is the results form that testing as well. http://www.vincihighperformance.com/...IN%20PAGE.HTML
to really put the mikronite gears to the test, after i installed them, i went right out and did a 300 mile run. and did another 200 miles the next evening. and then, i went to the track the following evening. basically, i abused the living crap out of them. disregarded the whole break in procedure. still, came out like new.
all of these gears were on display at PRI in 2005 at the liberty transmissions booth.
Originally Posted by red fury
Chris the firebird that is mentioned in the interview is it a M6? How about any info on the 60' times if you all talked about it, to get an idea of how hard the car is leaving the line.
Originally Posted by mrr23
auto with yank py3400e converter. car sucks for 60ft. with the 4.10 gears and 315/35-17 nitto drs, i got a 1.709 60ft with no spin. going to hit the track next month and try to break the rear end or run a 10 second time with a stock motor and 2 stage n2o.
Originally Posted by engineermike
Forgive me, but I don't consider a 1.7 60' to be all that abusive on a 7.5". I've run a bunch of 1.5's on non-mikronited gears without failures.