Are the Bear stacks better than the Muzzys?
Muzzy got "His" first set of Velocity Stacks for a ZX12R from Rickey Gadson in 2002! He then tested them on the Dyno and said that they testing did not show any real gain. Gadson used them at the Indy Pro-Star Nationals and went .05 quicker than he had ever gone before. At the Next Race "Atco" in New Jersey, Muzzy had a set of Velocity Stacks he had made in his bikes.
The Question that beggs to be asked, Which is Better? The Original design that was tested for 2 years in South Africa and then here in the USA where the Dyno showed a 3 to 5 HP gain using the Short Stacks which were the only ones Bear Made at the time, Or the Muzzy Stacks that are different and have a different Venturi design and that Muzzy has "Never" Claimed any performance advantage and only calls them a "Tuning Aide"?
I sold the 1st 10 sets of Bear Engineering Velocity in March 2002 to 9 other people and myself on the Old Labusas Board. Dan Millholland "OldKawboy" went to Maxton and made many runs between 194 and 197 MPH. He then put in a set of Bear Engineering Velocity Stacks and made runs between 199 and 201 MPH. Now, 90+% of every ZX12R that has done Land Speed Racing have Bear Engineering Velocity Stacks.
Because of his relationship with Eazy Rider (Who started this Forum) Bear has always given everyone here and HERE ONLY 10% off. List Price for the short was $249.95 and they were reduced to $225.00. All Bear Stacks wwere Gold until I asked about getting them in Purple since the Belly of the early ZX12R were all Purple. I also asked him about LONGER Stacks for more midrange and torque so he designed the Long one which fill in the torque dip between 4 and 6K RPM. Again with testing of OldKawboy we found that Mixing them for Drag Racing gave him up to a 0.10 quicker ET so we then sold Short, Long and Mixed. Try buying a set of Mixed from Muzzy!
Now that the ZX12R is out of Production he turned to the ZX10 and the ZX14. Dan son Chad set a Land speed record on a ZX10 sponsored by Cycle World at Maxton using a set of Bear Engineering Velocity Stacks made just for that bike. He made 5 more sets which I have all but one of the sets.
Here are some of the articles that some were even posted here!
http://kawasakiworld.com/zx-12r/5821-rg-drag-racing-south-africa-bear-racing-zx14r-pi.html
Here is also some of the work thet Pierre does in South Africa!
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