1.1 CFM Air Compressors?

[Ben Martin]

Originally Posted by Michael Hill

Where are you purchasing the 215 compressor? The only place I've seen is here: http://cfpwarehouse.com/shopsite_sc/...oduct2931.html

But it looks super sketchy.

Do you contact Thomas directly?

I've bought from these guys for 3 years -- no issues and fast shipping.

[Eric Scheuing]

Originally Posted by AllenGregoryIV

We used a viair 98C. However there website is now listing a higher CFM because they are using 13.8V instead of 12V this wasn't the case during build season. The ones we own list a 1.10 CFM at 12V directly on the compressor. I may need to call Viair and see if we can get 12V specs for their compressors published again.

I contacted Vair about their 1.1 CFM compressors, and the customer service rep I spoke with said that the specs they have listed online are incorrect. He was familiar with the FRC pneumatic rules, and confirmed that they are NOT in fact FRC legal.

I wonder how many teams ended up with illegal compressors because the spec sheet was wrong...

[roboruler]

Originally Posted by Eric Scheuing

I contacted Vair about their 1.1 CFM compressors, and the customer service rep I spoke with said that the specs they have listed online are incorrect. He was familiar with the FRC pneumatic rules, and confirmed that they are NOT in fact FRC legal.

I wonder how many teams ended up with illegal compressors because the spec sheet was wrong...

Well considering that spec sheets can be used to prove the legality of components to RI's. What spec sheet evidence is there that these are illegal?

Obviously if it would create an unfair advantage, it would be un-GP to use even if the fact sheet was wrong.

[Eric Scheuing]

Originally Posted by roboruler

Well considering that spec sheets can be used to prove the legality of components to RI's. What spec sheet evidence is there that these are illegal?

Obviously if it would create an unfair advantage, it would be un-GP to use even if the fact sheet was wrong.

The spec sheets are updated now. Here are some snippets from my convo with the rep. Not trying to put any teams on blast for using something with misrepresented properties; there's no way they could have known.

Regarding the 97C and the new 1.1CFM restriction

Originally Posted by VAIR

Eric,

No problem at all. We've had a few people inquire about that and our new testing has changed the CFM to 1.52. We are just waiting for final confirmation so it can be changed on our site.

Thanks,
VIAIR

Follow up asking about the 100C

Originally Posted by VAIR

Hello Eric,

Unfortunately even the 100C is going to be out of spec once we list the new CFM data. The new CFM at 0psi for the 100C will be 1.27.

Hope that helps and let me know if there is anything else I can help you out with.

Thanks,
VIAIR

Asking about other legal compressors

Originally Posted by VAIR

Hello Eric,

Thanks for contacting VIAIR! The only compressor we have seen work for FRC is the 90/92C. They are available through Andy Mark or a number of our distributors. That would be the least expensive option for you since they will also give you free shipping.

Thanks,
VIAIR

[Rick]

All of these values are for a supply voltage of 13.8 volts. The 100c, as an example, is 1.27 CFM at 13.8 volts. If 12 volts is the supply voltage, is the CFM reduced at the same ratio? 1.27 CFM at 13.8v is 1.10 CFM at 12v thus making it legal?

[wilsonmw04]

Originally Posted by Rick

All of these values are for a supply voltage of 13.8 volts. The 100c, as an example, is 1.27 CFM at 13.8 volts. If 12 volts is the supply voltage, is the CFM reduced at the same ratio? 1.27 CFM at 13.8v is 1.10 CFM at 12v thus making it legal?

Math does not make them legal. Only a spec sheet detailing the CFM makes it legal. The Thomas 215 and VIAIR 90/92 meet those requirements.

[Rick]

Originally Posted by wilsonmw04

Math does not make them legal. Only a spec sheet detailing the CFM makes it legal. The Thomas 215 and VIAIR 90/92 meet those requirements.

Is VIAIR aware that we run these compressors at 12 volts? It would be nice to a spec sheet for 12 volts.

We'll see what the 2017 rules and Q&A have for rulings.

[Eric Scheuing]

Originally Posted by Rick

Is VIAIR aware that we run these compressors at 12 volts? It would be nice to a spec sheet for 12 volts.

We'll see what the 2017 rules and Q&A have for rulings.

Might be worth reaching out to them. Their customer service was very responsive!

[Eric Scheuing]

Originally Posted by wilsonmw04

Math does not make them legal. Only a spec sheet detailing the CFM makes it legal. The Thomas 215 and VIAIR 90/92 meet those requirements.

FWIW I just checked, and VAIR lists the performance data of the 90/92/95C at 13.8V as well.

[AllenGregoryIV]

Originally Posted by Eric Scheuing

FWIW I just checked, and VAIR lists the performance data of the 90/92/95C at 13.8V as well.

Yes this is definitely an issue. I'll try to call them tomorrow if I have time. Do we know for sure that it was just their measurements that changed or did they change anything about the compressor it self. It would make sense that they would want to rate their compressors at higher CFMs (for every application other than FRC). Currently we have no way to prove the legality of any VAIR compressor since we don't have a 12V CFM rating at 0psi for any of them. We can assume the 90/92/etc are legal since we are supplying a lower voltage but we don't actually know their CFMs at 12V either.