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LS Performance

LS Performance Parts – Build your LS Motor Fuel System with the best components from the Motorcity – CPR Racing

Showing 1–9 of 11 resultsSorted by price: high to low

E85 FlexFuel Conversion – Available for Pre-order now!
$659.82 Add to cart
LS Power Box
Price range: $348.76 through $394.54 Select options This product has multiple variants. The options may be chosen on the product page
AC Delco Flex Fuel Injectors – 12613412
$267.86 Add to cart
Chevy – LS2 05-06 / GM LS2 Fuel Rail Kit
$299.11 Select options This product has multiple variants. The options may be chosen on the product page
LS3/L76 Fuel Rail Kit – LS3 – 06-09
$299.11 Select options This product has multiple variants. The options may be chosen on the product page
LS1/LS6 Fuel Rails
$299.11 Select options This product has multiple variants. The options may be chosen on the product page
LS Fuel Rail Cross-over Kit
$144.94 Add to cart
Flex Fuel Sensor GM/Continental OEM E85
Price range: $103.13 through $126.04 Select options This product has multiple variants. The options may be chosen on the product page
Engine swap fuel filter/regulator kit
$92.70 Read more

CPR Racing Injector Calculator

Estimate injector flow changes based on fuel pressure, convert between CC/min and lb/hr, and calculate injector size for horsepower goals.

1. Fuel Injector Flow vs Pressure

Formula:

New Flow = Rated Flow × √(New Pressure ÷ Base Pressure)

Rated Flow: Base Pressure PSI: New Pressure PSI:

2. CC/min to lb/hr

Formula: lb/hr = CC/min ÷ 10.5

CC/min:

3. lb/hr to CC/min

Formula: CC/min = lb/hr × 10.5

lb/hr:

4. Injector Sizing by Horsepower

Formula: Injector Size = HP × BSFC ÷ Injectors ÷ Duty Cycle

Horsepower Goal: BSFC: Number of Injectors: Duty Cycle:

Typical BSFC: Naturally Aspirated 0.45–0.55 | Turbo/Supercharged 0.60–0.75 | Recommended max duty cycle: 80%.

CPR Racing — Total Fuel Systems
Injector Testing • Cleaning • Flow Matching • Full Motorsports Characterization

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