Maybe Timing
Thread Starter
Racer
Joined: Mar 2009
Posts: 251
Likes: 1
From: Windsor Connecticut
Maybe Timing
On my 1984 Corvette WHEN DRIVING THE CAR ON A HIGHER SPEED I FEEL AS THOUGH IS HOLDING BACK OR MAYBE IT IS A SLIGHT BUCKING NOT SURE. I have change the plugs and the spark plug wires. When idling the car run smooth when I push the gas pedal the response is quick. All suggestions are welcome
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
Klgrayson, know that we have communicated before. Sound like a fuel issue. When was the last time the fuel filter was changed? With the 84 your pressure if fairly low to feed the two injectors. Is there a Schrader valve on the fuel line to the injectors? If there is, then attached a fuel pressure gauge to the valve and tape the gauge to the windshield. Then run the car at the higher speed and watch the pressure to see if it drops at the higher speed. If it does, then your starting to starve for fuel at the higher speeds.
Good Luck,
John
Good Luck,
John
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
You need a gauge that has provisions other than a threaded schrader fitting. Since CFI is such LOW pressure, you can use a carb FP gauge, or even some vacuum/pressure gauges work. Spec is 9-13, you want 13, and it should never waiver or change, regardless of load or engine RPM.
