AI-Powered Engine Building

Build Your Perfect
V-Twin in Minutes

Drop in your parts → AI calculates HP/TQ + theoretical dyno graph + full spec sheet. The smartest way to plan your V-twin build.

How It Works

Three simple steps to your dream build

STEP 01

Select Your Parts

Choose from popular V-twin parts or enter custom specs. Engine size, cam, heads, intake, exhaust, and more.

STEP 02

AI Crunches Numbers

Our AI engine analyzes your combination using real-world V-twin performance data to estimate output.

STEP 03

Get Your Dyno Graph

See estimated HP & TQ curves, power band, build recommendations, and download a full spec sheet.

Example Builds

See what's possible with VTwinBuilder

Street Screamer 96"

Street Screamer 96"

92
Peak HP
106
Peak TQ

96ci Twin Cam with S&S 585 cam, ported heads, ThunderMax EFI

Big Bore 113"

Big Bore 113"

125
Peak HP
130
Peak TQ

113ci stroker with CNC heads, S&S Super G, ThunderHeader exhaust

Milwaukee Beast 131"

Milwaukee Beast 131"

148
Peak HP
155
Peak TQ

131ci M8 with Wood TW-777, CNC ported, Bassani Road Rage

Why VTwinBuilder?

AI-Powered

Uses advanced AI trained on real V-twin performance data for realistic estimates.

Instant Results

Get HP/TQ numbers and dyno curves in seconds, not hours of research.

Any Combination

Works with any V-twin platform: Evo, Twin Cam, Milwaukee-Eight, and more.

Build Sheets

Generate professional spec sheets to share with your builder or machinist.

Ready to Build?

Stop guessing and start building. Get AI-powered performance estimates for your V-twin in minutes.