Yea I'm pretty much using him because I know how meticulous he is. What really sucks is that I'm paying him to make my diff less reliable than what it is now. Still, I think even with those constraints he'll do a better job that most.

 

See what I started? Haha. Back when a friend ordered a OSGiken set-up from him for STR he got told of several names of people that have theses cyro coated diffs. I don't think he ever said anything to anyone else about it but from my understanding several people do. To me I couldn't care less, it's a reliablity thing and has no performace advantage besides it making it alittle less likely to break.


This is why I made the comment I did. People already "cheated" and did it in STR and people are even more likely to do it in BSP. The odds of someone protesting that would be crazy, how would anyone even know? "Oo he launched and didn't break a diff, check his diff for signs of cyro coating" WTF, yea right.


For the record I'm on stock diff in my STR build so I'm not even in this at all. I seem to do just fine on a stock diff maybe one day I'll move to a decreased locking OSGiken 1.5way.

 

personally I'm totally fine with it too. Maybe we need to get all the major STR and BSP competitors together and sign a Do Not Protest treaty, lol.

 

throw axle spacers on that list too lol

 

I really wanted to get the cryo treatment and upgraded crush ring but found nothing could be changed for STR. I emailed the SCCA before i had mine built just to be sure. Those that chose the cryo gears are taking a risk, but its non performance so I could care less. If someone changed ratios, that's different. I simply wasn't comfortable doing anything questionable for my build. Instead, I hardly ever launch the car and made a conscious effort to take care of the diff. When I won B-Stock back in '10, I had people threatening protests back for running the Hondata (unlocked for BS, flashed for STR). I was so nervous, it took a lot of the fun out of it for me. That is exactly what cheating does, takes the fun factor away for everyone. Having David Goatley close is another insurance policy. I'm happy to write a letter. The Puddy Stage 2 looks perfect for our needs and i have a spare that is ready for a strong build. IMO, the biggest concern should be oem gearing, not strengthened parts.

-Marc

 

For my STR car I'm just going to have him build it to the rules with no cryo or upgraded crush sleeve but I'll also happily write a letter advocating durability mods on diffs in ST and SP classes. That way if it does break maybe I can do it right next time. Not sure exactly what the letter should say. I guess I'm asking for as long as the gears are stock, then it's legal? Cryo treatment specifically allowed. Maybe have some catch all wording that if any change to the differential other than a limited slip changes the effective gearing or performance of the car than it's not legal. Not sure if the rules should be different from BSP-STR but to me I don't see any reason for them to be.

 

IMO, and this will likely be unpopular here, strength of driveline parts, etc goes along with car selection. I would be shocked if any amount of letters overcame the "not in the class philosophy" response you are likely to receive. All of thus sudden, the face of ESP would change also. Imagine if the ESP talons could keep the drivetrain under them (and cryoing the gears, etc would certainly help them, but they can't for 6 runs without breaking.

 

I guess it's worth writing a letter about a anyway. It's not totally outside the spirit of the class and if you think about it, allowing SP to run whatever size tire they can squeeze under there kinda makes it necessary to allow some form of reliability mod. If anything it might encourage participation in the class where people are staying away due to costs associated with potential breakage. That being said, you cryo the diff and you're probably still bound to break an axle lol though I'd prefer changing an axle than a diff during an event.

 

I think it is outside the spirit of the rules. ST and SP should not be about internals modification.

 

I agree with this. IMO, you make your car choices and live with its built in problems and adding reliability is a performance enhancement.
I like my S2K and am doing an STR build but it will not do a Pro because of its limitations and I would not be trailering it, made that decision before I bought it.
If you allowed cryo treating of the diff gears/housing, how about transmission gears?