GTM Performance Engineering G37 SUPERCHARGER KIT PRESS RELEASE
08-10-2010, 02:40 PM
#376
Administrator
08-10-2010, 02:40 PM
#377
Thats why you use a larger pulley on the supercharger to reduce impeller speeds to be in line with the specs for the particular blower. It is no different from the Rotrex blower you use. For maximum output, you adjust pulley sizes to have engine redline coincide with the maximum impeller RPM, and tune accordingly. 
Sam
Last edited by Sam@GTM; 08-10-2010 at 03:10 PM.
08-10-2010, 02:46 PM
#378
Administrator
08-10-2010, 02:49 PM
#379
As long as Y rpm is the same, it will always flow X volume of air.
Lets say for example that the blower flows 1000CFM at 50,000 RPM.
If you have a 5000 RPM engine, then you need to have a 1:10 ratio between engine RPM and impeller RPM to spin the supercharger to its maximum RPM, and flow 1000 CFM.
If you have a 8000 RPM engine, then you need a 1:6.25 ratio to again, spin the supercharger to its maximum RPM and, again, flow the same 1000 CFM.
I fail to see how engine RPM has any affect on a supercharger's ability to flow more or less, if the pulleys are properly paired up to give the correct ratio to maximize output. Of course there are other factors to actual horsepower output, but we're talking strictly blowers here.
08-10-2010, 03:09 PM
#381
The supercharger is rated for X amount of flow at Y rpm.
As long as Y rpm is the same, it will always flow X volume of air.
Lets say for example that the blower flows 1000CFM at 50,000 RPM.
If you have a 5000 RPM engine, then you need to have a 1:10 ratio between engine RPM and impeller RPM to spin the supercharger to its maximum RPM, and flow 1000 CFM.
If you have a 8000 RPM engine, then you need a 1:6.25 ratio to again, spin the supercharger to its maximum RPM and, again, flow the same 1000 CFM.
I fail to see how engine RPM has any affect on a supercharger's ability to flow more or less, if the pulleys are properly paired up to give the correct ratio to maximize output. Of course there are other factors to actual horsepower output, but we're talking strictly blowers here.
As long as Y rpm is the same, it will always flow X volume of air.
Lets say for example that the blower flows 1000CFM at 50,000 RPM.
If you have a 5000 RPM engine, then you need to have a 1:10 ratio between engine RPM and impeller RPM to spin the supercharger to its maximum RPM, and flow 1000 CFM.
If you have a 8000 RPM engine, then you need a 1:6.25 ratio to again, spin the supercharger to its maximum RPM and, again, flow the same 1000 CFM.
I fail to see how engine RPM has any affect on a supercharger's ability to flow more or less, if the pulleys are properly paired up to give the correct ratio to maximize output. Of course there are other factors to actual horsepower output, but we're talking strictly blowers here.
This link should help
Support | Vortech Superchargers
08-14-2010, 08:45 PM
#382
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Got tired of reading through thread after thread
So I apologize for asking the question someone else might have already asked.
How much to upgrade to 500hp
I am not a gear head so I need it installed.
Where do I go to get the job done?
Visited the GTM power site, no guidance so I am here asking.
Thanks
How much to upgrade to 500hp
I am not a gear head so I need it installed.
Where do I go to get the job done?
Visited the GTM power site, no guidance so I am here asking.
Thanks
08-15-2010, 01:38 PM
#385
Administrator
^ No it can't, North America only
