EMPI 0.65 Accelerator Pump Jet — D Series Carburetor Tuning | Porsche 914 1970-1976 (44-1098-0)
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The EMPI 44-1098-0 is a genuine EMPI 0.65 accelerator pump jet for EMPI D-Series (EPC) carburetors, as used on the 1970–1976 Porsche 914 and air-cooled VW engines. It meters the fuel squirt the accelerator pump delivers on throttle tip-in, so it is the part you change to tune off-idle hesitation or bog. Sold each.
Part numbers: EMPI 44-1098-0 / 4410980 / 44 1098 0
Fitment
| Years | Vehicle | Notes |
|---|---|---|
| 1970–1976 | Porsche 914 with EMPI D-Series (EPC) carburetor | Listed fitment |
| Not specified | Air-cooled VW engines with EMPI D-Series (EPC) carburetor | Fits by carburetor, not by chassis |
If you are unsure this fits your car, contact us with your year and model before ordering.
Specifications
| Spec | Detail |
|---|---|
| Brand | EMPI |
| Part number | 44-1098-0 |
| Type | Accelerator pump jet (threaded) |
| Size | 0.65 |
| Carburetors | EMPI D-Series (EPC) |
| Function | Meters the accelerator pump fuel shot on throttle tip-in |
| Boxed dimensions (as listed) | 2 x 1 x 1 in |
| Shipping weight (as listed) | 0.03 lb |
Why It Matters
A mild street flat-four wants a squirt that is neither stingy nor drowning, and finding it is a matter of tenths. This 0.65 accelerator pump jet threads into an EMPI D Series carburetor's discharge circuit, sizing the pump shot so throttle response settles smooth.
Installation Notes
The pump jet threads into the pump discharge circuit, so it can be swapped without pulling or tearing down the carburetor.
Jets are sold each, so you can match both barrels or jet each one to suit.
Move one size at a time and road-test between changes to dial out hesitation and bog.
Frequently Asked Questions
What carburetor does the EMPI 44-1098-0 pump jet fit?
The EMPI 44-1098-0 fits EMPI D-Series (EPC) carburetors, including those on the 1970–1976 Porsche 914 and air-cooled VW engines.
What does a 0.65 accelerator pump jet do?
It meters how much fuel the accelerator pump squirts when you open the throttle, which controls off-idle response. The 0.65 size is one step in EMPI's D-Series pump jet range.
Why does my carbureted VW or 914 stumble when I hit the throttle?
A stumble or bog right as the throttle opens, that clears once the engine is moving, usually points to the pump shot. Changing the pump jet size one step at a time is how that tip-in hole is tuned out.
What is the EMPI part number for the D-Series 0.65 pump jet?
EMPI part number 44-1098-0 (also searched as 4410980).
Do I have to remove the carburetor to change the pump jet?
No. The jet threads into the pump discharge circuit and can be swapped without pulling the carb.
⚠ California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
