Vader rods
#41
Having recently taken several materials science and strength of materials courses, my thinking on this is similar to Tim. There is little change in the treated aluminium, though forgings, weldments and possibly machined parts would see a benefit in stress relief.
Here is some supporting documentation from a NASA experiment on cryo treating an unspecified alloy of aircraft grade aluminium. Granted the article stub doesn't give the specific alloy tested but the conclusions confirm what has been said.
Here is some supporting documentation from a NASA experiment on cryo treating an unspecified alloy of aircraft grade aluminium. Granted the article stub doesn't give the specific alloy tested but the conclusions confirm what has been said.
#43
We did lots of stress analysis to come up with the best balance we thought for the situation of being "builder friendly". I'm not going to say it's perfect for everyone's platform and/or scenario...as that would be impossible...but at least we're aware of the building process when designing and using Al rods.
I do think you came up with a good compromise between strength and user friendliness...just my personal opinion looking at it and guessing, again not personally actually running an analysis.
Beef rods are not necessarily the strongest...there are many other factors involved. I've seen them break just as easily as a China built steel rod.
Regardless, we feel we've got a really good balance between the two...strength and the least amount of frustration for the builder when using them.
BTW...don't know in your neck of the woods on what goes on, but there are plenty of Pro Stock guys that use Al rods my friend. We know because we've sold the the older versions to those guys all over the world for at least 15 years.
So far 3 of 4 have said they are not running aluminum rods, 2 were adamant about it, and that one guy didn't say he wasn't running steel, just that you won't gain anything switching to steel or ti (I thought ti wasn't allowed in PS, but whatev). These are current prostock engine builders I've talked to since last night. These guys all make engines for cars who consistently qualify, and one of them might hold the current MPH record
But like all things Prostock, what works for one team will be completely opposite for another.
#44
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From: Pensacola Fla.
Wow! All I wanted to do is show off some pretty rods.
Looks like they can come either way, forged or billet.
I linked Darren to this thread, so He could answer the more technical questions.
Like any other product, there has been R&D, along with many revisions to the rod before the final plan was made.
I am sure Darren has installed a couple sets of these rods in a few engines for dyno runs, and a season or two of real life drag racing.
How many here have run AL rods before?
I do know and understand there is a huge difference between a Miata engine built for road racing, and a 4g63 built for drag racing.
I would very much like to try some aluminum rods in an NA build, maybe for the catfish kit car.
Now the question is forged(BME) or billet(R&R, GRP) rods?
And after reading the description of the Vader rods-does anyone really believe that cryo treatment has any effect on aluminum?
Now the question is forged(BME) or billet(R&R, GRP) rods?
And after reading the description of the Vader rods-does anyone really believe that cryo treatment has any effect on aluminum?
I linked Darren to this thread, so He could answer the more technical questions.
Like any other product, there has been R&D, along with many revisions to the rod before the final plan was made.
I am sure Darren has installed a couple sets of these rods in a few engines for dyno runs, and a season or two of real life drag racing.
How many here have run AL rods before?
I do know and understand there is a huge difference between a Miata engine built for road racing, and a 4g63 built for drag racing.
#47
DEI liberal femininity
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From: Fake Virginia
Darren,
I may be misreading, but maybe you can clear this up...
Do you do tensile and fatigue testing on your product? Did you do the same testing to compare forged vs. billet blanks? Or with cryo treating?
Your previous posts make it sound like the testing was irrelevant because you knew billet / cryo "worked".
I may be misreading, but maybe you can clear this up...
Do you do tensile and fatigue testing on your product? Did you do the same testing to compare forged vs. billet blanks? Or with cryo treating?
Your previous posts make it sound like the testing was irrelevant because you knew billet / cryo "worked".
#48
Tour de Franzia
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From: Republic of Dallas
Darren,
I may be misreading, but maybe you can clear this up...
Do you do tensile and fatigue testing on your product? Did you do the same testing to compare forged vs. billet blanks? Or with cryo treating?
Your previous posts make it sound like the testing was irrelevant because you knew billet / cryo "worked".
I may be misreading, but maybe you can clear this up...
Do you do tensile and fatigue testing on your product? Did you do the same testing to compare forged vs. billet blanks? Or with cryo treating?
Your previous posts make it sound like the testing was irrelevant because you knew billet / cryo "worked".
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