SpeedFactory Racing JDM D15B SOHC VTEC Vitara Spec No-Notch Forged Steel H-Beam Connecting Rods

Vitara piston turbo JDM D15B SOHC VTEC builds are one of the most popular 300-500hp street Honda setups out there. Very cost effective, fun, and relatively simple to build.

These particular D15 engines used an odd oem piston compression height with a D16 rod (both length and rod journal diameter). Using standard D16 rods in one of these engines is possible but creates the need to have custom compression height pistons made which isn't cost effective. Standard D16 rods are also unnecessarily large and heavy and require the tedious and time consuming task of block and girdle notching. Time to kiss those days goodbye!

Introducing the ultimate rod for these setups – lightweight, strong, and clears both the sleeves & girdle for unrivaled ease of use.

Optimized specifically for Vitara JDM D15B SOHC VTEC builds they offer high strength and quality at an affordable price. The custom rod length brings the Vitara pistons to proper deck height while being substantially lighter than other similar rods on the market.

The 2-piece forged 4340 chromoly construction provides outstanding strength and quality. Each rod is heat-treated, magnafluxed, CNC machined, and shot-peened to stress-relieve the metal. The rods have precision alignment dowels to positively locate the rod cap, maintain big end bore size, and eliminate cap walk. They feature bronze alloy pin bushings for floating wrist pins and come standard with 220,000 psi rated 3/8” ARP2000 rod bolts. Instructions and ARP Lube are included.

Features:

- Forged SAE 4340 Chromoly Steel
- 100% CNC machined
- Precision rod cap alignment dowels
- Bronze alloy pin bushings
- Magnafluxed
- Multi-stage heat treated
- Shot peened to relieve stress
- Each set balanced to +/- 1 gram
- Laser etched SFR logo
- Profiled to clear factory girdles and ZERO block notching is needed.
- 500hp rated

Specifications:

Engine: Honda/Acura JDM D15B SOHC VTEC (does NOT FIT other D15 variants with the smaller 45mm big end rod bore (42mm crank rod journal)), including the JDM D15B 3-Stage VTEC engine and USDM D15 variants)
Material: Forged 4340 Chromoly
Bolts: 3/8” ARP2000
Weight: 462 grams
Center to Center Length: 136.38mm – 5.369”
Pin End Bore: 19.02mm - 0.748”
Pin End Width: 18.2mm – 0.717”
Big End Bore: 48mm – 1.890”
Big End Width: 22.65mm – 0.892”

Approximate Vitara JDM D15B SOHC VTEC Build Compression Ratios:

• JDM D15B Block with D16Y8 Head - 8.2:1 with our custom length rod
• JDM D15B Block with D16Z6/Y7/D15B Head - 8.0:1 with our custom length rod
• JDM D15 Block with D15B7/D16A6 Head - 7.6:1 with our custom length rod