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Go Power Dyno Support Info **** VERY Much Under Contruction **** Better Pressure Diaphrams are Soon available: (because currently GP supplied diaphrams fail tooo often) DEPAC Site #99, Competition Fuel Systems, has found a source for Custom, Rugged, Diaphrams that can take the higher pressures and last. We are looking for all others who want to participate in a Group BUY of these custom diaphrams from BelloFram. Price gets very good for quantities of 100 or more. 10 diaphrams would cost you about $120 if you participate in this group buy. (5 ea for $60) Please leave an email if interested. We would have to have enough so together we can make a one time buy of at least 100 total diaphrams. E-mail Norm
Norm Schenck
The Stuska® Dyno is a good Power absorber but the water inlet is only into one side of the rotor and it must then flow arround the rotor to fill the other side. The result is a sluggish response to a quick increase in water flow. This slower response is now much more noticeable when using the ADL Control System and causes an overshoot response. There is one simple modification that will double the speed of response by drilling 3/8" or 7/16" holes as shown below. We have been doing this for many years and its even more important now with the new fast ADL system. Also if you have the brake apart replace the original old style Stuska® water seals with a Much better replacement seal, using ceramic on carbon. Discard all the old Stuska® parts. PAC-SEAL #237 from Grainger 5NC16. Make sure you braze the ends of the new spring just like the original (to prevent fly-out of at the ends at hi-RPM). The original spring retaining cup to capture the spring is not really needed (if you braze the ends). Make sure these are properly installed and pressure tested. If it does not hold air then it will leak water into the greased bearings. Water in bearings results in FAILURE of the bearings in a short time. If you see water dripping out the ends of the shaft then your dyno is going to fail very soon. When changing the ball bearings put in a better quality part. No point in saving a few bucks using a POS part when a better bearing will last much longer. (cheap stuff COSTS MORE!). We show a Stuska® 400 but it applies to the 800 dual rotor as well.
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