Heres my thoughts on the belt drive.

[Longhairfreak]

So I watched the CMXDX video and this is what I believe. I think they tightened up the chain on the Dragon so it would have a massive load on the drill. My thoughts on a belt drive are this. If a top fuel dragster blower needs 700 hp just to turn the blower that spells inefficient to me. Is there something im missing? If there is let me know. There have been other tests done to prove the belt drive on a sled is inefficient.

 

[Trashy]

Do you have the link to that vid? I would like to watch it.

 

[fidorama]

well when you see some sort of std. or hyd. auto trans that is as light and works as well let us know

 

[Longhairfreak]

Do you have the link to that vid? I would like to watch it.

Go to the CMX website.

 

[Longhairfreak]

well when you see some sort of std. or hyd. auto trans that is as light and works as well let us know

How can you compare a chaincase to a std or hyd trans?

 

[Longhairfreak]

Go to the CMX website.

Go to youtube and type in CMXDX.

 

[Trashy]

Go to the CMX website.

This one?

[video]http://www.fileinfo.com/extension/cmx[/video]

 

[007sevens]

Chain drive is an inefficient way to rotate a moving part. Each and every link in a chain makes friction and requires Lubrication so it won't seize.

Up till now technology has not provide a belt that will stand up to the abuse of stopping and starting forward momentum. such as when you land after a jump with the throttle pinned.

I wouldn't say that we have perfected the technology yet but we are well on our way.

If you don't believe me, I really don't care.

I'm sure you will try and correct the world anyway.

 

[ABMax24]

So you're saying a machine that burns 70gals of nitromethane, requires a complete rebuild, and 700+hp to turn its blower to make 8000+hp to run a single 3 second pass is inefficient? Please do explain

 

[Longhairfreak]

Chain drive is an inefficient way to rotate a moving part. Each and every link in a chain makes friction and requires Lubrication so it won't seize.

Up till now technology has not provide a belt that will stand up to the abuse of stopping and starting forward momentum. such as when you land after a jump with the throttle pinned.

I wouldn't say that we have perfected the technology yet but we are well on our way.

If you don't believe me, I really don't care.

I'm sure you will try and correct the world anyway.

Ive seen first hand that a belt drive does not roll over as easy as a chaincase. If someone can prove me wrong make sure you have lots of beer and a bed.

 

[fidorama]

I thought you were talking about the drive belt, which in a sled is essentially the tranny..... but in essence that is one reason I bought a Honda quad

 

[007sevens]

Here's the link
https://www.youtube.com/watch?v=SNyq2spHkS0

 

[Longhairfreak]

So you're saying a machine that burns 70gals of nitromethane, requires a complete rebuild, and 700+hp to turn its blower to make 8000+hp to run a single 3 second pass is inefficient? Please do explain

They say a belt drive is 97% efficient. So 97% of 8000 hp is 240 hp to turn that belt.

 

[007sevens]

Ive seen first hand that a belt drive does not roll over as easy as a chaincase. If someone can prove me wrong make sure you have lots of beer and a bed.

You brought this up smart guy you prove us wrong

 

[ABMax24]

Ive seen first hand that a belt drive does not roll over as easy as a chaincase. If someone can prove me wrong make sure you have lots of beer and a bed.

Why because even if someone proves you wrong you are going get them drunk and take advantage of them?

 

[Clode]

They say a belt drive is 97% efficient. So 97% of 8000 hp is 240 hp to turn that belt.

you keep fogetting that the blower on a top-fuel dragster is making like 100psi boost....it takes a fair amount of horsepower to make that pressure and maintain enough air flow for 8000 hp....just saying

 

[Longhairfreak]

You brought this up smart guy you prove us wrong

I already know its inefficient. I need someone to prove me wrong.

 

[Trashy]

Ive seen first hand that a belt drive does not roll over as easy as a chaincase. If someone can prove me wrong make sure you have lots of beer and a bed.

I know this might be deflecting your thread a bit...... But what is better........ A tight track or a loose track?

 

[SUMMIT TREE]

A blower requires hp because it is compressing air at a high volume not because a belt drive is inefficient . As the the volumes and pressure demands increase the hp draw goes up exponentially . A belt drive is lighter, very strong, does not require lubrication, has less rotating mass, and does not have rollers ,bushings and pins to wear and stretch like a chain.will I spend a grand on one? Maybe I haven't decided yet

 

[Longhairfreak]

I bet if we put a torque wrench on my jackshaft it will take less ft/lbs than a Polaris belt drive to turn over.