I have been cutting up my lower intake and trying to improve the flow. I dont have anything fancy for testing just a gas powered leaf blower and smoke. I first tried a stock set up and it defiantly favors the passenger side of the intake and also the front ports. Also you can feel the air only comes out of the top 1/4 of the ports and is directed straight down towards the ground. My lower intake has a raised roof and has now for about 10 years. I duplicated the triangle inside like a stock piece. With the raised roof you can feel the air is exiting threw the whole port and it comes out in a angle the matches the intake ports of the head. I spoke with Coy years latter when he dyno tested a raised upper and he said it was useless up until about 6k rpm.
The problems im having with my lower is that the front ports flow like crazy and the rear ports are a little lazy. The rear port on the passenger side is by far the worst. The side to side flow has improved greatly over stock, overall airflow is no comparison the modified intake just flowes many times more then the stock. My question is, the way im testing this does it prove anything. Beings this is a roots blower and it creates boost by pressurizing the whole intake tract does blowing air threw it prove anything? Anyone have any ideas how to improve flow to rear cylinders???
Thanks
Brian
The problems im having with my lower is that the front ports flow like crazy and the rear ports are a little lazy. The rear port on the passenger side is by far the worst. The side to side flow has improved greatly over stock, overall airflow is no comparison the modified intake just flowes many times more then the stock. My question is, the way im testing this does it prove anything. Beings this is a roots blower and it creates boost by pressurizing the whole intake tract does blowing air threw it prove anything? Anyone have any ideas how to improve flow to rear cylinders???
Thanks
Brian