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john martin

  • Posts: 2699
Re: Ashbys attack the 6.6 ... and parallel
« Reply #20 on: October 19, 2012, 06:45:26 pm »
Are the 5.7 electro motors more powerfull than the lamb amtech 5.7s as I have the airflex mini in series and is not as powerfull as a turbo, storm or jag


Jim ,  the 1400w standard lamb ametek three stage has about 100cfm and 137" lift

         An Ametek 6.6 two stage has about 139 cfm  and 130 " lift



Electro motors are 5.7 but some share a similar fan design to the 6.6
There is a two stage with about 130 cfm and 130" lift

There is a three stage with up to 117 cfm and 150" lift

I believe there are a couple of vertions of the above motors with slightly varying lift and cfm .


The Airflex turbo uses three 100cfm /  137" lamb motors
If you were to swap in electro two stages u could have up to 390cfm and 130" lift

If u swapped in Electro three stages you could have 350cfm and 150" lift


Your series airflex mini has about 100cfm and 220" lift
Hard to compare it to the parallel machines u mention with different or more motors and a series vs parallel configuration .

With the Enforcer ashbys are trying to maximize one cord performance without exceeding about 12amps , so they are using one three stage Electro coupled to a weak second motor  ...  because the Electro will be near 8amps the second motor must be around 4 ....  The Electro gives about 117cfm and about 11HG , the second motor adds 6HG but doesn't contribute to more cfm in a series configuration .
At least thats what i think anyway  :)



jim mca

  • Posts: 827
Re: Ashbys attack the 6.6 ... and parallel
« Reply #21 on: October 20, 2012, 11:21:32 pm »

•5.7 inch Heavy Duty 3 Stage plus 7.2 inch Heavy Duty 3 Stage Vacuum System PC7697
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•5.7 inch Standard Performance plus 5.7 inch Heavy Duty Performance 3 Stage Vacuum System PC9951
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•2 x 7.2 inch Heavy Duty 3 Stage Vacuum System PC7668
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•5.7 inch Standard plus 5.7 inch Heavy Duty 3 Stage Vacuum System PC5866
- 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•2 x 5.7 inch Standard 3 Stage Vacuum System PC2005
- 220 inches of water lift / 16.2 inches of mercury lift. Will operate up to 175 ft / 53.3 metres of vacuum hose.

These are the specs from ashbys site no cfm figures mentioned but I would not like to try the hose lengths  :(
 

john martin

  • Posts: 2699
Re: Ashbys attack the 6.6 ... and parallel
« Reply #22 on: October 20, 2012, 11:49:08 pm »

•5.7 inch Heavy Duty 3 Stage plus 7.2 inch Heavy Duty 3 Stage Vacuum System PC7697
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•5.7 inch Standard Performance plus 5.7 inch Heavy Duty Performance 3 Stage Vacuum System PC9951
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•2 x 7.2 inch Heavy Duty 3 Stage Vacuum System PC7668
 - 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•5.7 inch Standard plus 5.7 inch Heavy Duty 3 Stage Vacuum System PC5866
- 230 inches of water lift / 17 inches of mercury lift. Will operate up to 200 ft / 61 metres of vacuum hose.
•2 x 5.7 inch Standard 3 Stage Vacuum System PC2005
- 220 inches of water lift / 16.2 inches of mercury lift. Will operate up to 175 ft / 53.3 metres of vacuum hose.

These are the specs from ashbys site no cfm figures mentioned but I would not like to try the hose lengths  :(
 

We can guess the CFM of each  ...  all of the lamb ameteks above are likely to be around 90-100cfm
so any combo with just ameteks in series will have no more than 100cfm

Only the Electro HD they use has more ( 117 ) and the SD motor combined with it will not add to the cfm .

The original video comparing the 6.6 may still be valid  , if its just the CFM gauge thats inaccurate then all things equal the series electro setup may still work better under load than a twin 6.6 .
But then u cant trust any aspect of Ashbys vids now .