![]() The phrase "if you know what you are doing" indeed applies. ![]() Ambient pressure is still on the float bowl.Ī filter will cover the float equalization hole, so as filters plug, the pressure present at float bowl is relatively similar to the Venturi, so the car does not start to run progressively richer as the filter / strainer plugs! Those Strainers restrict only the VENTURI. What do they restrict compared to a proper filter box? Restriction is pumping loss. I'd be interested to see restriction numbers, not AFR or jets changed. Changing 6 main jets, if need be, is not difficult.Just six main jets? And when do you change them? Tuning these carbs is very simple, if you know what you're doing. The point of testing is to find out how much of a restriction it presents. They are no substitute for a proper filter which will be more effective, and less restrictive. They're a vintage-look throwback for the racing cars of old. Simply scoring cylinder walls from dust and sand will still happen. They serve no purpose other than keeping a piece that will catastrophically fail the engine out. Those Pierce strainers are not "filters", they're rock strainers. So chances are good, it it looks restrictive, chances are it is, and testing will quantify it. And at minimum flow, closer to 10" of Inlet Restriction (the maximum allowable with plugged inlet filters!)Ī standard witch's hat strainer with finer mesh is usually no more than 10" at maximum flow. In testing this weekend, at full flow, the shorty strainer had the water manometer almost sucked out into the inlet. It looks restrictive to me, compared to traditional witch's hat strainers. That hat strainer will look like a dunce cap, almost 4' long-a long cone with lots of surface area. A standard witch's hat strainer usually is put in place of the "maintenance spool" a piece of pipe 4' long on the inlet to allow removal of casings, etc. ![]() ![]() ![]() I am familiar with witch's hat strainers, having used them for the past 25 years during commissioning. These particular strainers are made in China, and are sized to fit in place of our standard expansion bellows on the inlet piping of the machine. It was my first startup where I was able to measure a drop on a 'witch's hat' startup strainer. I can relate the following from a compressor startup I did this past weekend in Vincomin Vietnam. Velocity stacks look particularly striking when added to muscle cars, race cars and hot rods.įind the ram tubes / Velocity Stack to best suit your engine at EFI Hardware, Australia’s leading electronic fuel injection performance and conversion specialists located in Melbourne, Australia.You wouldn't run them because "they look very restrictive"? Not a great reason, is it? This allows for the most air to flow through the intake to provide the best possible volume of air into the cylinder thus providing greater combustion and more power. These Velocity stacks not only smooth out air into the intake but also when the correct length is calculated greatly improve (VE) Volumetric efficiency. Velocity stacks can also be referred to as intake trumpets or ram tubes, which are fitted to Individual throttle bodies (ITB’s). EFI Hardware has a long tradition of providing high quality Ram Tubes, Velocity Stacks, Trumpets and Air Filters in both off-the-shelf and custom-made form to local and international customers, EFI Hardware are based in Melbourne, Australia. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |