Yes, you are sharp to notice that Dylan! The narrow band sensors only 'operate' at near 14:7 to 1 or stoimetric. The wide band sensors like the Bosch operate at a much wider parameter than the NB sensors. This is why they are pre-heated, to put the sensor in it's 'natural' state of working conditions. Hot at least 900 degrees before they work like they should switching from Lean to Rich at the 14:7 to 1 ratio. On the Wide Band you can alter fuels, the ratio of Lean to Rich because as we know most power is made at 12.5 AF for gasoline,(E-85 is around 7 to 1), therefore the Wide Band is a greater tuning aid than the narrow band, however some manufacturers are using the wide band in OEM apps because the vehicle is Flex fuel capable and needs the wide parameter of working conditions that the WB affords. The O2 Sensor just measures how much oxygen is left in the exhaust stream, thats all it does.Moparman1972 wrote:Haha 9:1? What do your exhaust sensors go out to? Aren't the narrowband sensors only from like 12:1 to 14:1?
Yeah Dylan thats why I said I was interested in you and your fathers work, it gives me some ideas I would like to try out. But then again look at the size of those ports, and they are raised considerably. I think this helps to start the column of airflow 'down' into the port chambers easing the transition of the long side radius or the roof. It also has to work in conjunction with those alcohol nozzles I would assume. Of course Bob Jones aint talking!Moparman1972 wrote:Haha that wing leading up to the guide looks familiar.
That particular one weighed roughly 5 pounds and was the size of a small pizza roughly 16 inches in diameter. The Tree Mushrooms get much larger than that, 15 20 25 pounds are common around these here parts. Here is my Scott Brown Custom grind juice camshaft. "Man, like those lobes are so huge they have a small manned expedition to the summit'.fal308 wrote::s014: That tree mushroom is huge! What's the diamter on that?
Haven't been 'shroom hunting in years. Didn't realize they were bringing that much. (don't care for them myself)
Thanks Ian, it cost $359.00 delivered thats the cam only. The hyd. roller lifters will be around 600.00,,,Yeah, it's got some 'fat' lobes, much larger radius at the top than the old flat tappet designs. This means way more area under the curve. In my 'quest' for a 7000RPM hydraulic valvetrain combo. I forgot to mention the spring requirement is 175 lb. on the seat and 420 lb.open the Comp Cams Beehive Part#26095 is 180/430 this should work perfect and reduce valvetrain weight by over 50% and offer more control than a Comp Part# 929 dual spring. I will use Comp Lightweight Steel Retainers which are 2 grams lighter than comparable Titanium retainers. All this should help reduce valvetrain weight because the hydraulic roller lifters are a bit heavy. This reduction will help the roller lifter from pumping up and reducing power at higher RPM's.ianandjess wrote:that is an impresive looking cam eddie