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  #21  
Old 02-28-2018
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RVT1000 RVT1000 is offline
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I think what you are referring to is commonly called a nozzle. All that will do is increase the pressure behind the "correctly sized accumulator" and increase the velocity of the escaping gasses which will result in more thrust from those gasses. Unless it all blows up anyway.
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  #22  
Old 02-28-2018
a21stud a21stud is offline
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Originally Posted by RVT1000 View Post
I think what you are referring to is commonly called a nozzle. All that will do is increase the pressure behind the "correctly sized accumulator" and increase the velocity of the escaping gasses which will result in more thrust from those gasses. Unless it all blows up anyway.
No, I was thinking accumulator. From Merriam-WebsterÖ
Definition of PRESSURE ACCUMULATOR: a tank for storing air or gas under pressure or for absorbing the pulses in a hydraulic or pneumatic system.

I donít know if an accumulator could be made practical from a weight, size or volume stand point. It could only be used on the crankcase side of the pistons to control the pressures generated by the explosion of nitro and air at the wrong time and location.

The majority of damage comes from the intake side and accumulators wonít work there as supercharging is to add pressure, not to temporally store it.

Stronger materials on the blower and intake side to stop shrapnel would only help if the escaping pressures are routed out safely rather than taking off the top of the motor and then the body.

As people have mentioned here, far and away the majority of the issues are not as drastic as the JFR examples of the last two races and JFR, DSR and CKR have people who live these issues daily.
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  #23  
Old 02-28-2018
SWPMFAN SWPMFAN is offline
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2018:

J. Force = 2 major explosions
CAPPS = 1 big explosion
TJ = 1 big explosion
Beckman = 1 big explosion
Tasca = 1 big explosion
Haddock = 4 oil downs
Doug = 3 major explosions
Richie = 2 major explosions
B. Torrance = 1 big explosion

May have missed some, but the above list is a start.
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  #24  
Old 02-28-2018
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Ahhhh...now I got you.

That's gonna have to be one big accumulator. And the entrance to the accumulator will effectively be a nozzle because you're forcing the expanding gasses to flow where you want them since you can't make the opening any bigger than the opening for the oil pan. And that will result in the pressure building up "behind" the accumulator.
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  #25  
Old 02-28-2018
a21stud a21stud is offline
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Originally Posted by RVT1000 View Post
Ahhhh...now I got you.

That's gonna have to be one big accumulator. And the entrance to the accumulator will effectively be a nozzle because you're forcing the expanding gasses to flow where you want them since you can't make the opening any bigger than the opening for the oil pan. And that will result in the pressure building up "behind" the accumulator.
Yes, this is somewhat pointless as the accumulator('s) would take up space and probably not be light. The bigger issue is that accumulators would only work on the crankcase side. They could work IF on a bladder design, the bladder could withstand the heat, chemicals and shrapnel. A piston design would most likely be better as long as it/they could withstand the shrapnel long enough to collect and then somewhat control the releasing of the excess pressure. On the piston design, the opening can be almost as large as the accumulator's piston diameter. Maybe put 4 smaller piston ones on each side of the crankcase acting similar to 4 "pop off" valves with oil/shrapnel containment when needed.

Drag racers have proven one thing over and over for 70 years. We can break anything.

I'm just glad the current carnage Bill$$ aren't mine.
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  #26  
Old 02-28-2018
a21stud a21stud is offline
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Quote:
Originally Posted by SWPMFAN View Post
2018:

J. Force = 2 major explosions
CAPPS = 1 big explosion
TJ = 1 big explosion
Beckman = 1 big explosion
Tasca = 1 big explosion
Haddock = 4 oil downs
Doug = 3 major explosions
Richie = 2 major explosions
B. Torrance = 1 big explosion

May have missed some, but the above list is a start.
Rumor has it these guys all switched to Russian nitro.
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  #27  
Old 02-28-2018
Roger Gates Roger Gates is offline
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The first thing is there will never be a way to stop these guys from figuring out how to blow up their stuff as long as the goal is to be faster and quicker than the rest. Stronger blocks are not really the issue. The block dimensions are somewhat the limiting factors on the pieces that cause the catastrophic failures. In no particular order Camshafts - Push Rods - Rocker Arms - Connecting Rods - Crankshafts - Roller Lifters - Valves all fail causing destruction. Not to mention that most incidents can be related to traction loss putting cylinders out that makes for a hydraulic explosion - hanging a valve open or failure of one or more of the above parts setting the bomb off. It is almost a situation that not having a problem is really the exception. When you have players that are willing to shoot for the moon because the issue is not what it costs, but do what it takes to win or even compete in the case of the more minor teams what you are seeing is what you will get. It doesn't matter if the block is made out of Unobtanium everything else is not. Every lane of every track is from a little to a lot different on every pass and a lot of times different during the same session. If and when the rules and technology get to where nothing fails it will no longer be a race, but a procession of different colored vehicles going down the track (Ho-hum).
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  #28  
Old 02-28-2018
anotheridiot anotheridiot is offline
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Quote:
Originally Posted by a21stud View Post
Rumor has it these guys all switched to Russian nitro.
I have been known to be gullible, is this real?
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  #29  
Old 02-28-2018
a21stud a21stud is offline
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We havenít said the goal is how to not break anything. It was to figure out ways to keep the damage from being dangerous.

A full face hemet and firesuit instead of t-shirt and jeans kind of improvement. Billet cranks instead of cast cranks probably keep more parts inside the motor under a lot more pressure than when Big Daddy was using forged Chrysler factory cranks back in the 60ís and 70ís. His foot made improved clutch containment systems mandatory but they didnít make him any quicker or faster or slower and boring.

This issue could possibly be resolved by just using bigger and better ballistic blankets around more of the parts that tend to rip up the bodies. We were looking for safety improvements to keep the Force family out of the hospital, not boring racing.
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  #30  
Old 02-28-2018
a21stud a21stud is offline
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Originally Posted by anotheridiot View Post
I have been known to be gullible, is this real?
Sorry, tongue was firmly planted in my cheek...
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