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Ok, sorry I missed that so let me go to real world data. I have one car that has a PSI Roots on it and it works great if the OD is very high above...
Sorry but you can't compare blowers like that. The only way you can compare them is to use the same motor and swap the blowers for the dyno runs....
The writeup is correct and basically is the same as radar absorbing paint that is used on some aircraft:rolleyes:. The paint holds nickel flakes...
Well Dave if you maintain 110 psi of oil until you shut down then you are not running out of oil so the probelm lays somewhere else. What weight...
Do you record your oil pressure on the data logger during the run? All can look good but you can be running out of oil before the finnish line...
When saying 14-71 are you talking case or rotors as being limited or both. Can you use a Superman type blower which as the 14" rotors in a longer...
You should be able to measure the OD of the tube and find it here http://www.knfilters.com/universal/universal.htm
Have you verified that your rear ride height is correct. That is a very critacal adjustment. Who made the chassis? If you know you should contact...
Did you increase the amount of fuel going into the motor? Are you concerned that the boost dropped which is normal as a result of increased flow?
No the size of the top opening is to do with the incoming volume of air versus the overdrive ratio. The lower the OD the smaller the top opening....
The restrictor plate used to match the larger hat opening to the smaller blower opening should be made in such a manner as to smooth airflow into...
I understood that Cantrell Racing was looking at buying PSI since they are out in Arizona anyhow and work on screw blowers.
In every application on adding a spacer I have seen a performance gain. I would say it varies from 100 to 150 horsepower. The amount of gain...
That problem with the M5 cases not being tolerant to backfires was in the early version and it has now been modified to prevent it from cracking.
I agree with Brandon. The PSI Roots is designed for high overdrive up above 45%. Haven't seen one work very well below that. Again I agree with...
The inlet size depends on the percent overdrive, 10.875" is pretty well for unrestriced OD as is the hat opening. If you are running 14.5% OD then...
As long as the hat is smaller than the blower opening so there is no ledge seen by the air it is not too bad. It is when the hat is bigger than...
Yes and no. The problem with NA alcohol motors is that they normally will not burn the cadmium off in one run unless they are very high horsepower...
You didn't say if you are using port nozzles or not. Are you? If so take it to around 1000*. With a new set of plugs in the motor make a run, then...
As what Will said but with a little more info. With Jetsize you pick either 8000 or 9000 rpm in a certain gear such as high gear. There are other...
