5hp vs 7.5

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  • Brian
    April 8, 2014 at 7:43 am #46321

    Hey guys. I have a question about the ingersoll rand t30 2 stage 80 gallon compressor.it has a 5 hp motor on it and I know it came with a 7.5 hp from the factory. I’m guessing the person that had it before me put a new motor. Will this put stress on the motor or pump? Also should they have changed the pulleys? Also is a 5 hp enough for painting with sata hvlps and rp? Or should I sell it to a friend and buy a 7.5 hp? I don’t want to be stresses about not having enough air when painting a entire car?

    Martin
    April 8, 2014 at 8:48 pm #46327

    The air capacity is defined by the tank.. the continuous air pressure is defined by the pump..
    If you know the model check the CFM specs and compare with SATA requirements.

    I personally have 3hp compressor with a 15 gal. tank and 11cfm.. but I don’t use sata i use iwata and devilbiss that require low cfm.. I have tested Sata4000RP and my compressor is en par with it.. that is if you only use the compressor for painting.. if anyone uses the same air for sanding etc.. you will starve for pressure..

    Brian
    April 8, 2014 at 11:51 pm #46336

    It’s a 80 gallon 2 stage cfm is 16.8 cfm. All I want to know if if it will keep up with paining a complete car or should I upgrade to a 7.5 hp motor?

    Craig
    April 9, 2014 at 1:25 am #46337

    [quote=”Zarifpour” post=34883]It’s a 80 gallon 2 stage cfm is 16.8 cfm. All I want to know if if it will keep up with paining a complete car or should I upgrade to a 7.5 hp motor?[/quote]

    I wouldn’t waste my $ on a cobbled together compressor…it may work, but if you’re going to stress over it, go big.

    Carlos Garcia
    April 9, 2014 at 6:05 am #46342

    I know that Sata requires 15 CFM, it is an air hungry beast, I use DeVilbiss, but I have tested a Sata on my compressor (13 CFM) with no problems, if your compressor was designed for a 7HP, a 5HP will not give you the 16 CFM but it will give you 13 or 14 and in my humble opinion, I think is enough for a full car with no other equipment on it, once again is my opinion not a fact. Good luck. :cheers

    Brian
    April 9, 2014 at 10:16 am #46343

    Actually after doing some searching I found out thy this compressor is made it be used with a 5 or 7.5. So basically with the 5 hp it puts out 16 cfm. Is that enough?

    Brian
    April 9, 2014 at 11:31 am #46344

    Also is single stage better or two stage for painting?

    Martin
    April 9, 2014 at 12:56 pm #46345

    It will be enough for HVLP 4000 Sata.. it uses 15.2CFM @ 2Bar (29psi)

    p.s. the specs you have written.. are they for 5hp or 7.5hp?

    Brian
    April 10, 2014 at 6:22 am #46350

    16.8 cfm for the 5hp motor
    24 cfm for the 7.5 hp motor

    Brian
    April 10, 2014 at 6:23 am #46351

    16.8 cfm for the 5hp motor
    24 cfm for the 7.5 hp motor

    Also everywhere I read says that you should buy a compressor that dose double the cfm of what you tool requires.

    Martin
    April 10, 2014 at 3:30 pm #46357

    [quote=”Zarifpour” post=34898]16.8 cfm for the 5hp motor
    24 cfm for the 7.5 hp motor

    Also everywhere I read says that you should buy a compressor that dose double the cfm of what you tool requires.[/quote]

    You are good to go with sata hvlp you are on the margins but it will work without problem..

    The double cfm for tool stuff is because another person might work with the same air..

    Brian
    April 11, 2014 at 6:01 am #46361

    What is the best brand compressor in your guys opinion? Champion? Ingersoll? 2 stage or 1 stage?

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