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Frequently Asked Questions

What people want to know about Crazy Tuner

Crazy Tuner is an AI-assisted copilot for aftermarket EFI: you upload CSV datalogs from Holley, FuelTech, MoTeC, Haltech, HP Tuners, and similar systems, keep vehicle context in one profile, and review structured output with likely issues, confidence, and recommended checks—combining deterministic fuel and airflow math where the pipeline applies it with AI-assisted explanations. It is designed for people who already tune or wrench on their own builds, and for shops that want faster first-pass log triage—not for unattended “auto-tuning” of critical tables.

Create an account to subscribe (DIY monthly includes a 7-day trial) and add vehicles.

Below you will find quick answers on supported aftermarket ECUs and platforms, DIY vs shop plans, credits and reports, safety, and use cases. For live prices and pack sizes, open pricing; for longer reads and release notes, see the blog.

Which aftermarket ECUs and platforms does Crazy Tuner support?

Crazy Tuner is built around CSV log exports and common workflows from these aftermarket EFI families today. Your file should use the column headers your ECU software produced so channels map cleanly.

  • Holley — Holley EFI (e.g. Terminator X, Dominator, Sniper) and compatible exports
  • FuelTech — FT-series and FuelTech logger / export workflows
  • MoTeC — M1 and related MoTeC CSV exports
  • Haltech — Elite, NEXUS, and compatible Haltech CSV exports
  • HP Tuners — VCM Suite / MPVI and related CSV workflows
  • Other / not listed — choose this in the app when your toolchain still exports a usable CSV; validation will call out header or row issues if something does not parse

More platforms and tighter integrations are on the roadmap. Read workflow notes on the blog or contact us about what you need.

Sign up to get started

Create an account and choose a plan to add vehicles and run reports.

What is Crazy Tuner?
Crazy Tuner is an AI Engine Tuning Copilot for aftermarket EFI and engine management that helps users understand logs, diagnose issues, and make better tuning decisions.
How do deterministic math and AI work together?
Crazy Tuner starts with repeatable engine-calibration math for maps (fuel, airflow, pulse width, lambda targets where applicable), then uses an AI copilot to explain what likely happened in your logs and what to verify next. Follow-up map changes are handled through deterministic update logic so your map state evolves in a traceable way.
Does the AI invent fuel or timing numbers?
No. AI does not directly rewrite tables. Where the product uses physics-based or table-driven models, outputs come from explicit relationships and your log inputs (plus vehicle context), not free-form guessing. AI assists explanation and prioritization; deterministic logic handles map-state updates, and all changes should still be verified on-car.
Is this a replacement for dyno or road tuning?
No. Deterministic estimates and AI guidance reduce guesswork and speed triage, but they do not replace final validation on the vehicle with appropriate safety checks.
Is it for DIY users or professionals?
Both. Crazy Tuner is built for capable DIY builders and also for shops and professional tuners who want faster workflows.
Does Crazy Tuner replace a tuner?
No. It helps reduce guesswork, improve clarity, and speed up diagnostics, but it does not replace human expertise.
Is it automatic tuning?
No. Crazy Tuner is a copilot, not a blind auto-tuner.
Is it for beginners?
It is best for users who already understand their setup at a basic level and want better guidance.
Can a shop use it across multiple vehicles?
Yes. Professional workflows are a core part of the product direction.
Will more performance categories be supported?
Yes. Crazy Tuner is expanding over time — follow the blog and announcements for updates.
What type of tuning does Crazy Tuner support?

Crazy Tuner is built for a wide range of EFI tuning use cases, including:

  • Restoration / restomod
  • Street performance
  • Hot rods and muscle cars
  • LS / LT swaps
  • Drag racing
  • Circle track
  • Road racing
  • Off-road and trucks
  • Street / strip
  • Boosted performance builds

More resources

Pricing and plans, DIY builder overview, shops & tuners, and the Crazy Tuner blog. Contact us for demos or to ask about upcoming platform support.