Edelbrock 1403 manuale d’uso

1 Edelbrock Performer Series Carburetor Owner’s Manual 3/00 INTRODUCTION Your Edelbrock Performer Series carburetor was calibrated using Edelbrock Performer, Performer RPM, and Torker II Power Packages. The carburetor metering was developed on Edelbrock engine dynamometers, chassis rolls, and a variety of development vehicles. Although in most ap[...]

2 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 SECTION 1: THEOR Y OF OPERA TION BASIC ENGINE REQUIREMENTS The spark-ignition 4-cycle engine burns a mixture of AIR and FUEL. The air is controlled by the driver’s operation of the throttle. The fuel is mixed with the incoming air by the carburetor. The Ratio of AIR to FUEL is the AIR/[...]

3 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 METERING SYSTEMS The Edelbrock carburetor has three (3) basic systems that meter fuel to the engine: The Idle System, Primary Main System, and Secondary Main System. By understanding the operation of each you will be better prepared to calibrate your carburetor. Idle System: The Idle Sys[...]

4 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Fuel is drawn through the Idle System (Figure 2) by the intake manifold vacuum that is communicated at the Idle Screw Port (8) and Transfer Slot (7). Fuel in the bowl passes through the Primary Main Jet and Metering Rod Restriction (1) and into the Primary Well (2). The fuel for the Idle[...]

5 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 The fuel flow rate in the Main System is proportional to the air flow rate; as air flow increases - from either an increase in throttle opening or an increase in engine speed at the same throttle opening - the fuel flow also increases by nearly the same degree. At higher engine loads, su[...]

6 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 TRANSIENT CONTROL SYSTEMS In addition to the three (3) basic Metering Systems, there are two (2) Transient Control Systems; The Secondary Auxiliary System and The Pump System. Secondary Auxiliary System During the initial stages of Secondary Operation, the air flow rate through the secon[...]

7 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 “bog” or “flat spot” on secondary opening, it is necessary to add fuel by an auxiliary means during the time the secondary is in the transient phase. This is accomplished by placing a small Discharge Nozzle (2) at a point just under the Air Valve (1). The air flow past the edge o[...]

8 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 EXTERNAL DEVICES The function of your Edelbrock Performer Series carburetor is also dependent on several external devices; the fuel pump and air cleaner. Fuel Pumps and Pressure Avoid extremes in fuel pressure. At IDLE, there should not be any more than 6.0 psi; if the vehicle has an adj[...]

9 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Air Cleaners Your Edelbrock carburetor was originally calibrated with a low restriction open element air cleaner configuration; a 14”x3” Edelbrock Signature Series unit. It was also evaluated for proper metering and vehicle performance using a variety of other air cleaner designs and[...]

10 Edelbrock Performer Series Carburetor Owner’s Manual 9/01 To help you calibrate your carburetor, a CALIBRATION REFERENCE CHART has been designed for each model of the Edelbrock Performer Series carburetor. These charts (pages 18—31) each consist of two sections: A Calibration Table and a Rod/Jet Reference Chart. After reading the Calibration[...]

11 Edelbrock Performer Series Carburetor Owner’s Manual 9/01 Changing Components Metering Rod and Step-Up Spring changes can typically be made in less than five minutes and without removing the carburetor. First, loosen the Step-Up Piston Cover Screws (See pg. 32) and twist the Step-Up Piston Cover Plates to the side. The Metering Rods and Step-U[...]

12 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Long Duration Camshaft If the engine has a fairly radical camshaft it may require an excessive amount of throttle opening for idle and/or have low idle vacuum levels. Either condition can lead to poor levels of adjustability and erratic idles. • Another fix for the above condition is [...]

13 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Case 2: Slower than base calibration Go to 1 stage lean Primaries and 1 lean Secondaries and perform acceleration test #3. • If test #3 is the same as base calibration, go back to the base calibration. • If test #3 is faster than base calibration, go to 2 stages lean on both the Pri[...]

14 Edelbrock Performer Series Carburetor Owner’s Manual 1/01 CALIBRATING THE POWER MODE STAGING The Step-Up function, which moves the Metering Rod to the Power Mode, is controlled by the Step-Up Spring. The base calibration has a spring which “stages” rich at 5” Hg. If your vehicle has a mid-throttle driveability problem that is encountered[...]

15 Edelbrock Performer Series Carburetor Owner’s Manual Rev 9/01 Float Drop (15/16" to 1") Figure 9 Float Level (7/16") Figure 8 Fast idle linkage Figure 11 Choke piston linkage Figure 10 BEND HERE TAB C (.100") C (3/64") A A B D .026 Wire Slot Piston Cylinder 7/16” Drill bit 1403-1413 Perf Series Carburetor Owner'[...]

16 Edelbrock Performer Series Carburetor Owner’s Manual Rev 1/01 * = Carburetor is certified to meet U.S. Coast Guard Requirements The length of time during which the choke will stay closed is determined by the position of the choke cap. As the choke cap is turned clockwise the choke will stay closed longer. To properly set the choke turn the cho[...]

17 Edelbrock Performer Series Carburetor Owner’s Manual 9/01 altitude, however, and is to be driven at high altitude temporarily, it is not necessary to repeat the complete calibration procedure. Instead, use the rule of: “2% leaner per 1500 feet” and the Calibration Reference Chart for your model carburetor. For example, with a #1405 at base[...]

18 Edelbrock Performer Series Carburetor Owner’s Manual 12/01 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usual[...]

19 Edelbrock Performer Series Carburetor Owner’s Manual 12/01 3 Stages 2 Stages 1 Stage SECONDARY 1 Stage 2 Stages 3 Stages Lean (12%) Lean (8%) Lean (4%) Stock Calibration Rich (4%) Rich (8%) Rich (12%) JET #1423 JET #1424 JET #1425 JET #1426 JET #1427 JET #1429 JET #1430 (.086) (.089) (.092) (.095) (.098) (.101) (.104) Model #1403/#1404 Rod/Jet[...]

20 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usuall[...]

21 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Model #1405 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1428 (.100) 1451 (070 x 047)* none - stock calibration *Some Have ID #695 2 1428 (.100) 1450 (070 x 042) Rod 3 1428 (.100) 1449 (070 x 037) Rod 4 1430 (.104) 1458 (075 x 037) Rod & Jet 5 1427 (.098) 1[...]

22 Edelbrock Performer Series Carburetor Owner’s Manual 1/01 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usuall[...]

23 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Model #1406 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1427 (.098) 1459 (075 x 047) none - stock calibration 2 1426 (.095) 1449 (070 x 037) Rod & Jet 3 1427 (.098) 1458 (075 x 037) Rod 4 1425 (.092) 1446 (068 x 042) Rod & Jet 5 1426 (.095) 1453 (071 x[...]

24 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usuall[...]

25 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Model #1407 & #1410 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1433 (.113) 1453 (071 x 047) none - stock calibration 2 1433 (.113) 1450 (070 x 042) Rod 3 1433 (.113) 1449 (070 x 037) Rod 4 1434 (.116) 1454 (073 x 037) Rod & Jet 5 1431 (.107) 1443 (063[...]

26 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usuall[...]

27 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Model #1409 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1427 (.098) 1447 (068 x 047) none - stock calibration 2 1427 (.098) 1446 (068 x 042) Rod 3 1429 (.101) 1456 (073 x 047) Rod & Jet 4 1427 (.098) 1450 (070 x 042) Rod 5 1427 (.098) 1451 (070 x 047) Rod [...]

28 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usuall[...]

29 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Model #1411 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1432 (.110) 1459 (075 x 047) none - stock calibration 2 1432 (.110) 1419 (075 x 042) Rod 3 1432 (.110) 1458 (075 x 037) Rod 4 1431 (.107) 1454 (073 x 037) Rod & Jet 5 1431 (.107) 1456 (073 x 047) Rod [...]

30 Edelbrock Performer Series Carburetor Owner’s Manual 10/00 Step 1 Select the combination of Cruise Mode and Power Mode fuel-metering stages desired for your calibration. Normal calibration changes will be within the gridded diagonal area. That is, Cruise and Power mode changes should be in the same direction (either richer or leaner) and usual[...]

31 Edelbrock Performer Series Carburetor Owner’s Manual 10/00 Model #1412 & #1413 Rod/Jet Reference Chart REF # MAIN JET METERING ROD CHANGE FROM BASE 1 1433 (.113) 1453 (071 x 047) none - stock calibration 2 1433 (.113) 1450 (070 x 042) Rod 3 1433 (.113) 1449 (070 x 037) Rod 4 1434 (.116) 1454 (073 x 037) Rod & Jet 5 1431 (.107) 1443 (06[...]

32 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Item Description 1. Step-up piston cover screws (2) 2. Step-up piston cover plates (2) 3. Step-up pistons (2) 4. Step-up (metering) rods (2) 5. Step-up piston springs (2) 6. Step-up rod retainer springs (2) 7. Pin springs (small) (3) 8. Choke connector rod & lever* 9. Choke piston h[...]

33 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 27. Needle & seat assemblies (2) 28. Airhorn gasket 29. Pump plunger assembly 30. Pump plunger spring 31. Primary cluster screws (4) 32. Primary venturi boosters (2) 33. Venturi booster gaskets (2) 34. Pump jet housing screws (2) 35. Pump jet housing 36. Pump jet housing gasket 37. [...]

Check for air leaks. Make sure carburetor and manifold gaskets seal properly. All outlets must be plugged or connected. Check ignition system. Replace parts as necessary. Adjust timing to proper specifications. Check choke adjustment. See page 14. Change carburetor fuel filter and/or in-line fuel filter. Too lean. See Tuning Procedure . Check float[...]

35 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Symptoms Carburetor doesn’t adjust Carburetor floods Fuel leaks at shaft Internal fuel leak Misses or surges Stumbles or loads up Engine won’t idle Rough idle Backfires Bogs Hard starting Lack of power Pinging at moderate cruise Engine stalls on hard braking Low fuel economy XX X X [...]

36 Edelbrock Performer Series Carburetor Owner’s Manual 3/00 ® T roubleshooting Information Dirt/metal shavings between the needle and seat or a “sticking float”: T o correct either of these problems, lightly ta p the carburetor fuel inlet area with the handle of a screwdriver . If flooding continues, pinch the fuel line (if possible). Start[...]

37 Edelbrock Performer Series Carburetor Owner’s Manual 9/01 W ARRANTY EDELBROCK warrants its Performer Series Carburetors to be free from defects in material or workmanship. This warranty is valid provided that the product is properly installed, subjected to normal use and service and is not modified or changed in any way, or used for racing or [...]

38 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Notes: 1403-1413 Perf Series Carburetor Owner's Manual.qxd 3/31/2006 12:03 PM Page 38[...]

39 Edelbrock Performer Series Carburetor Owner’s Manual 8/94 Edelbrock Carburetor Data Log In order to get the most from your Edelbrock carburetor purchase, please complete and mail the enclosed warranty card. Also, you may want to record your calibration settings in the table below and keep it with your vehicle records. Model#:__________________[...]