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It was getting so valve stem seals at the very least would be needed, and if the head was to be pulled I might as well go for a gas-flowed one with a nicer cam. My recent experience on my DD: it's a workhorse, but my policy is, as soon as something needs serious work, improve it. Dino tuning is priceless in my book for competition engine building. Competition however is a hole nother ball game and will require the expert dino guy to get all that is available from any combo. Most reputable cam grinders can get you close for your street application if you listen to there recommendations and give them correct info when asking for a cam recommendation. All these things have to complement each other and one of them out of spec can diminish the end results. The cam degree fazing is one of the ways that it's found along with many other fine adjustments found only in the dino proses. If you ask him what cam to run he probably could get you close but that last 20 to 30 hp that makes the diff can only be found on the dino. I believe he has by far gotten the most hp out of this combination that I have seen in a long time. I know a veteran builder who spends endless time on the dino and has tried hundreds of cam combinations for the NASCAR spec late model stock car engines with 2x carb setups. If it is off by a long range, there may be a mistake in the axis sign in the Tracker to Camera Offset tab.I don't think that the novice engine builder or even the more experienced engine builder such as myself has enough knowledge to select the proper cam for a given build. The distance should be within one or two centimeters from Y position shown in the Previzion. With a metric tape measure, level the camera and measure the height of the camera from the center of the lens barrel to the floor. To verify that your vertical measurements are correct, in Previzion, make note of the vertical height of the camera. negative values if IS1200 is right of cameraīy following the proper survey settings and these offsets, the virtual camera height in relation to the real camera height should match.positive values if IS1200 is left of camera.negative values if IS1200 is on top of the camera sensor.positive values if IS1200 is below the camera sensor.negative values if IS1200 is in front of the camera sensor.positive values if IS1200 is behind the camera sensor.It’s important to know that these measurements start from the IS1200 VisTracker. These measurements are then entered in Previzion, in centimeters. When the sensor is to the right (from the perspective) of the camera, the values are positive.Īlways check in Previzion’s Observer View to make sure the offset is correct. When the Intersense IS1200 is to the side of the camera, make sure to know which side the sensor is on. If, in Previzion, the Observer View (Perspective Camera) is showing the sensor in the incorrect position, check if your values were entered negative or not. If the IS1200 is on top of the camera (vertical) and in front of the sensor (axial), the values for vertical and axial will be negative numbers.Īlways use Observer View to verify that the offsets are correct. The reference for Vertical Offset is the center of the lens.Īnd the reference for Lateral Offset is the lateral center of the lens. This is marked by the “witness mark”, a symbol that is made up of a circle with a vertical line across. The reference for Axial Offsets on the camera is the actual sensor plane.
#OBDWIZ HOW TO MONITOR CAM RETARD OFFSET REGISTRATION#
The IS1200 mounting block has a pivot mount and registration lines to measure all offsets from. The goal is to indicate in the virtual camera exactly where the IS1200 VisTracker is in relation to the cinema camera. In other words, zero offset is in the center of the IS1200. The offsets are measured from the Intersense IS1200 to the center of the camera’s sensor. When mounting the Intersense IS1200, use a tape measure to physically measure the position of the IS1200 to the camera sensor. The Airtrack has a “Front” and a “Top” and its position in relation to the camera sensor is negligible. When mounting the Airtrack or Intersense IS1200 sensors, the position of the sensors will vary depending on your mounting points.