You must not know what you are talking about because those are all stock items and no gimmick on the torque settings. Sneaking up on torque #'s are not a easy task. To run this tight you must be right on with crossbind or you will be the slowest car in the race. Been running these torques for years. The bolt does stretch and that is what you want.
Two rails I think a little testing or maybe practice in stretching bolts and torque of kingpins are in order. Yes the board was compressed using the large washers supplied by the AA.
Derek

You are right. WE run TIGHT but you just can't set the torque wrench at that high of a setting and go for it. I tested stock bolts to find how for I can go with them. I know you know your derby But I'm calling you on a 300 in lbs on a 1/4" bolt it will not take it.

Im not really sure, but I think that if you took the kingpin nut and turned it 1/2 a turn a day, it will stretch the kingpin and not snap it to get a higher torque setting. I never tried getting a kingpin in my car anywhere as tight as what Derek runs than again I don’t even run my front kingpin past double digits. Every car is different, you just have to pratice to find that right setting on your derby car.

Good luck on finding the right settings for your derbycar.

-chris
2006 AA superstock rally champ (205pts)

I let Tom Thome test his new vibrating torque wrench on Brooke's car at the Nationals and he went all the way to 300 and quit. He was stunned just ask him. I do everything by feel I do not use torque wrenchs simply because of experence and how I set up cars. I have no reason to BS anyone. I used to get 32 ft pounds out of Supertanium bolts years ago.
DEREK

The manufacturers max spec on a 1/4-28 bolt is 168 in lbs. I ran special grade 9s in my sticks at 215 in lbs.

Its random when they break...check this curve out and you will understand why

Tensile strength is random and only estimated. Once the bolt passes its yield strength(as you guys called it "stretching") the bolt actually becomes stronger (as you can see the peak tensile strength is above the point of yield) than a new bolt that has never been used. You can stretch a kingpin past yield strength and back it off and take it out of the car and it will be stronger than a kingpin that has never been used. This is due to the molecular modifications of passing yield strength. HOWEVER, as you apply more strain the strength will eventually decrease and fail at a unpredictable point.

When people say they sneak up on it they take their time as to not disrupt the curve shown in the link. If this curve is disrupeted (not torqued slowly) than it will reach failure much quicker.

Way cool on the graph. I'm not blowing smoke just telling everyone the way I do it. Been the king of tight for quite some time. Seems that I have few non believers.
DEREK

I talked with Jim Butler about setup after my local. He said that he runs well over what we run, so now I believe it.

Does Akron like cars that tight? Last year the masters winner in our local backed off the rear torque 10 lbs because he said Akron gets nervous about bolts snapping. Was he just being cautious?

You should be able to turn your back kingpin with a wrench from the bottom of the car. Akron turns the kingpin this way to check for frozen kingpins. If it does not turn you will surely lose your VIP status and have to prove it is not locked up in axel or bushing. After your trial run on Wed. just tighten it back up again during wheel alignment.

I would really like to see a king pin tightened to 300 in lbs without breaking. I would also like to see an in lb torgue wrench that goes up to 300. I have never seen such an animal. What brand wrench is it?

McMaster-Carr, an industrial supplier, has torque wrenches in 1/4", 3/8", and 1/2" drives that range from 10 in. lbs. to 3000 in. lbs. listed on their website.

First off Jerry torque wrenches come in inch pounds and foot pounds. Figuring out which is which before you comment would help. Pay attention because I've been teaching you about tight for years. 300 inch pounds is not jack as I said before I used to torque supertanium at 32 to 35 ft pounds can you figure that out. You do the math and figure out the conversion. I've won the NDR in every division and believe me pal I know what torque I was at. The fact that you have never seen a torque wrench that goes up this high in INCH POUNDS only shows that I am the INNOVATOR of tight not the imitator.
DEREK

DF, I feel the love. Wow. Again, it might look like you can not read. My last post clearly says "in lbs" twice. It is always best if you read only the printed words and not between the lines. This seems to be a trend.

So I guess no one knew about tight before you came along and we all waited for you to teach us. Thank goodness. Where would we all be without you? This seems a bit disrespectful to the history of our sport and to all those that came before us such as the Browers, the Flint group, the Anderson/Muncie group and most of the NDR founders. I bet they did not have a clue that they did not know what they were doing.

You keep talking about your old super bolts but these people can only use grade 8s. I simply said I would like to see 300 in lbs on a grade 8 bolt. It is a little hard to believe.

Let us learn about "resolution". Anytime you can break a measurement down into more increments, you get better resolution. Such as using in lbs versus ft lbs. Is it easier to torque to 160 in lbs or 13.333 ft lbs?

DF, please refresh our memories about your winners in every NDR division. Who were your winners in Scottie Flat bottom, 2004 AA glass wrapped Master, Super Stock and Class 1 divisions?

SUPER STOCK WAS LAURA SHEPARD AND THAT CAR HAD SOME SWEET KINGPIN INOVATION IN IT ALSO

I thought it might have been Laura. What a great competitor and driver she was. Tough all the time.

"THAT CAR HAD SOME SWEET KINGPIN INOVATION" Interesting concept. Innovation in the SS division. If asked, I think almost all people would say that SS is not a division that allows innovation.