DFW location during transition?

[Guest]

Does the DFW outer hub momentarily make contact with the axle head thru the transition in a well aligned car?

 

[5KidsRacing]

Some of that may happen or not, I really don’t know. The truth is that a well aligned/drilled car and a car that is weighted correctly will make it through the transition just fine. Changing the angle of cant on your DFW won’t have that big of an impact on anything except how easy it is to tune. If you car is pulling off the rail at the transition you need more steer. I don’t think the DFW ever rides the head of the axle unless you have a car that wiggles all over the place. I think the axle groove only helps in eliminating flaws in the wheel bore… i.e. with riding in two places rather than across the whole bore you are less likely to see flaw in the bore surface/prep. I run many cars with straight non-grooved axles. Every car likes to be tuned and weighted just a little bit different.

Steer is overrated… League racing isn’t lost or won on amount of steer... Just keep it on the rail. League racing is won on perfect alignment, correct weighting, weighting while tuning, correct axle prep, axle tuning, correct wheel lathing, correct wheel prep, tuned axle spacing, USPS being friendly, totally clean preparation of everythin, many prayers and just a dash of luck.

 

[DerbyDad4Hire]

Steer is overrated… League racing isn’t lost or won on amount of steer... Just keep it on the rail. League racing is won on perfect alignment, correct weighting, weighting while tuning, correct axle prep, axle tuning, correct wheel lathing, correct wheel prep, tuned axle spacing, USPS being friendly, totally clean preparation of everythin, many prayers and just a dash of luck.

Sounds like we need A LOT of luck!

 

[Guest]

Maybe the groove assists in maintaining the proper amount/thickness of oil on the axles. If there is too much oil, the only place for it to go on a non-grooved axle is against the axle head or car body. A groove allows the compressed, expanding oil a place to go to mellow out and not induce drag. I wonder how gravity affects the flow of the oil on a canted axle vs straight axle car. Obviously, liquids tend to flow downhill when coupled with gravity, unless an outside force(s) counteract, such as shooting a stream of air at said liquid or some other force that we thankfully don't have to deal with in the spectrum of PWD racing. Although, centrifugal force created by the rotating wheel, could come into play with oil and grooved axles. Maybe the spinning of the wheels helps the oil stay in the sweet spot, splattering lube back into the groove where just enough drizzles into the groove, in tandem with the handling and staging of the car that it helps maintain a more desirable layer of oil.

 

[MWDracing]

AMAZING....
Many of the things you mentioned, I have not considered before.

I have one addition.....
Prayer Works.....

MWD

 

[5KidsRacing]

I don't have a definate answer about the groove and what it does... I know some racers will say it distributes the pressures inside the bore. Your thoughts are good ones and we like thinkers like you in this community/images/boards/smilies/smile.gif I can say this... I run better with DD4H's new 92 axles than the older Jewkes style. I haven't tried any other aftermarket axles so I can't speak about them. I will say that I can run similar speeds with my wheels and non-grooved axles.

MWD.... You are right! Prayer helps with everything! It took me a long time to figure that out.

 

[Guest]

 

[Guest]

Maybe the groove assists in maintaining the proper amount/thickness of oil on the axles. If there is too much oil, the only place for it to go on a non-grooved axle is against the axle head or car body. A groove allows the compressed, expanding oil a place to go to mellow out and not induce drag. I wonder how gravity affects the flow of the oil on a canted axle vs straight axle car. Obviously, liquids tend to flow downhill when coupled with gravity, unless an outside force(s) counteract, such as shooting a stream of air at said liquid or some other force that we thankfully don't have to deal with in the spectrum of PWD racing. Although, centrifugal force created by the rotating wheel, could come into play with oil and grooved axles. Maybe the spinning of the wheels helps the oil stay in the sweet spot, splattering lube back into the groove where just enough drizzles into the groove, in tandem with the handling and staging of the car that it helps maintain a more desirable layer of oil.

I do believe that capillary action would be within the realm.