Modern muscle cars like the new Camaro have performance and drivability that could scarcely be imagined in 1969, but as technology has found its way into the aftermarket our older muscle cars are accelerating, braking, and cornering so well that fuel slosh, spillage, starvation, and odor have become a bigger problem than ever. A common problem is that under acceleration fuel will leak from the vented gas cap found on many older cars. Switching to a sealed cap eliminates the leak but now a properly designed vent system is needed.
Fuel tank venting is a deceptively complex problem and when improperly executed can result in spillage, fuel pump overheating, tank deformation, “burping” during fill ups, and strong fuel odors. Many resort to running a half tank of fuel and hoping for the best. To ensure we have a steady supply of fuel at all times we equipped our Camaro project with a Rick’s Tank and Vaporworx fuel pump system. Rick’s Tank and the Vaporworx system do not address tank venting, and both Rick’s and Vaporworx recommend our Fuel and Differential vent for this. We’ll be running our vents side by side — one for the DSE built 9 inch and the other to the Rick’s Tank
We’ve already upgraded the rear suspension to a DSE Quadralink, and the beefy crossmember that’s part of the kit is the ideal place to mount our vents since they need a 2.5″ hole in a flat and level space. All plumbing runs underneath the car, and the location needs to be chosen so that any collected liquid in the vent can run back to the tank or differential via gravity.
To mount the Fuel Vent we’ll need to cut a 2.5 inch diameter hole, and of all the ways to do this our favorite is the Blair Holcutter. The Holcutter’s shallow and rigid design cleanly cuts through both thin sheet metal and structural steel. As is so often the case, the Holcutter’s upfront cost is higher but it outlasts and outperforms the alternative tools.
The vent requires only a single connection to the tank or differential. We recommend flexible hose since strap-mounted fuel tanks can move around a little bit which could cause a hardline to eventually fail.
We use PTFE hose for all fuel-related applications because most brand-name aftermarket AN-type hose allow gasoline permeation (smell) but worse, will get brittle and eventually fail in a year or two. We really like the PTFE/Kevlar braided hose from Pegasus Racing because it has an almost unlimited lifespan, is lightweight, flexible, emits no smell, and hose ends are easy to install. And, not that it matters, but it’s good-looking too, with a classy green-gray hose and silver and black hose ends.
The Rick’s Tank with the VaporWorx option has just two plumbing connections: the main fuel hose and the vent. The Tank vent itself is located in the highest point of the tank, and is routed to the 1/4″ pipe fitting welded to the front face of the tank.
To place an order, please visit the following link. We usually ship the same day.