Cobra Make, Engine: Kirkham 427 brushed aluminum with Keith Craft 527C.I. all aluminum FE
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Mass Flow
Here are a few things to check. You need to have about an inch between the top of the Mass Flow meter and the air cleaner top. If you have the air cleaner up in the scoop and the air is hitting it as it comes through the scoop it can cause a wierd reading as it goes through the air filter and over the mass flow meter. We build a damn inside the air cleaner at the front right on back of the filter to keep this air from going through the filter to fast.
Also make sure that the pump is below the outlet on the tank because these are pusher pumps and not suction pumps. I assume that you have the complete installation done as the Mass Flow directions says.
Where are your O2 sensors mounted in the exhaust?
sbenso Shawn I was going to run a blower on my car and didn't want any problem with a lean running condition under boost. I have a double system with 2 (255) pumps in the gas tank on 2 seperate supply systems to the Fuel rail. Both supply lines are #10 with a return of #6. All SS line. In my state you can't run aluminium lines and pass inspection. IMO the return line helps 2 ways, you have a steady psi reading all the time. The fuel is also cooler than a system that is dead headed to the injectors. You need to rap, insolate, and clamp the lines about every 12" from front to back of the car. Double fuel filters, Yes. Buy the system from Mass Flo, unless it's aluminium lines. Make sure the clamps have rubber inserts to remove vibrations. I have heard of aluminium lines breaking and the car caughting on fire. Not a pretty sight.. If you are tight on money, then WAIT. You have spent a large amount allready, what's another month or two. I waited 25 years to buy mine and 4 years to get it into racing forum. Your SAFETY is the most important thing. Rick L. Ps I race with a half tank of fuel in the ERA gas tank. The weight helps with traction for the rear tires. No problems like some of the carb cars in high "G" turns and the black smoke coming from the tail pipe.
Last edited by RICK LAKE; 09-24-2008 at 04:07 AM..
Mass Flow
. If you are tight on money, then WAIT. You have spent a large amount allready, what's another month or two. I waited 25 years to buy mine and 4 years to get it into racing forum. Your SAFETY is the most important thing.
Rick L. Ps I race with a half tank of fuel in the ERA gas tank. The weight helps with traction for the rear tires. No problems like some of the carb cars in high "G" turns and the black smoke coming from the tail pipe.
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