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BANSHEE HP

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Posts posted by BANSHEE HP

  1. 29L was a vitos 110mm rod and plenty strong even with the big ends milled down... 29L/R is the wang 115mm long rod.

     

    When has any banshee rod besides the 29l/r gave ppl any problems?

     

    Even when the wang rods snapped in the middle, the big end of the rod was intact.

  2. This was a stock stroke trail port we did on a bike a few months back. Stock head, 30oko, full air box, fmf fatty with spark arrestors. The green line was baseline, red and blue are after tuning.

    20150727_175006.jpg

     

    This is a stock 2006 yfz. Red is baseline Blue is air box lid removed, k&n filter with a pre-filter screen cover, the stock spark arrestor swapped for a vitos higher flow version.

    20150727_173710.jpg

    The dyno is a dyno jet 188. Basically the industry standard as far as chassis dynos go. WIth new a/f meter this year, new tower software the year before. It reads that same as many dynos around the country.

  3. Or send your stock cylinders to us at Driveline performance. Our bore charge is $55 per hole. We can fix your problem one way or another, if only one side is really grooved up we can probably come up with a cylinder to replace it and bore that new cylinder and your other cylinder to the next smallest bore allowable

  4. I don't see a 68mm 795 Wiseco piston in that Wiseco link.http://www.wiseco.com/ProductSearch.aspxCheck the link I posted to CP's site.http://www.cpindinc.com/pub/view_product/32?lm=3&name=CPI-6854So, is what I posted wrong?

    Your correct they have it listed as the piston to use and with a .012 gasket. So just figure the cylinder is same height as stock but .008-.010" lower than stock with a .012" gasket, the rod is 5mm longer. A 573 is a 6mm offset, so the piston would be give or take .032" further in the hole at tdc. A very shallow stepped dome could be cut so the squish wasn't in the high .060s-.070"

  5. Were seeing high 70's low 80's and 45 ftlbs of tq from a 421 with 35mm carbs  and cpi or shearer pipes with very little intake and exhaust work, other than adjusting the port heights to just under a cub as cast. While talking on the phone with someone today I had to explain how "as cast" is going to be only sold as un-plated cylinders. We wont be sending as cast to be plated, the cylinders we'll sell ourselves will all be ported to some degree. A port job, effectively a "dune" port job will replicated on the cylinders that we have plated and will sell as bolt on kits with our pistons and domes etc. We can at the time of purchase port your cylinders to however you like for an additional cost. Another question I was getting was whether or not there were room for "boost ports"? Today I figured that out. This is the result of about a hour and a half figure out where to drill and how to start them to a ported finished product. Builders that are handy with porting tools like Cam said should really shine with these.

     

    PART_1437438384819_.IMG_20150720_202537.

    • Like 1
  6. You can't please everyone with one style of porting. Everyone ports and sets up engines different and obviously you can't grow back metal. The 4mm can come in port timing like a serval or cub, since 7 and 10mm strokes are not as likely to be bought as a bolt on setup and more likely to be a full port job to a builders specs they are as cast low port timing.

     

    Making changes to the outside casting was going to be quite a bit of money in addition to just purchasing it. In the future that inside pocket will be filled in. And there is a transfer port cnc program in the works to open the transfers with out doing it the hard way by hand.

    • Like 2
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