# RevLogic — BMW Performance & Tuning Guide

> BMW Performance & Tuning Guide (iPhone/iPad app by Nathan Samuel.)

- Source: https://appshunter.io/ios/app/revlogic/id6783490586 (this page in markdown: same URL + `.md`)
- Developer: [Nathan Samuel](https://appshunter.io/developer/6783490588)
- Category: Utilities, Reference
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 46 MB
- Languages: American English
- Released: 2026-06-29
- Data updated: 2026-07-28
- User reviews in markdown: https://appshunter.io/ios/app/revlogic/id6783490586/reviews.md

## What is RevLogic?

RevLogic is a BMW performance engineering toolkit built for enthusiasts who want real data, not guesswork.

WHP CALCULATOR
Calculate wheel horsepower and torque across 50+ BMW engines. Run Stage 0 through Stage 4 tune simulations, factor in bolt-ons, fuel grade, and drivetrain to see realistic power targets for your build.

DIGITAL DYNO
Visualize your power curve. Select your engine, hardware level, and tune stage to generate a dyno chart you can share.

ETHANOL BLENDER
Calculate exactly how much E85 to add to hit your target blend. E30, E50, and E85 targets with tank size presets for every chassis.

BUILD BIBLE
Engine limits, turbo ceilings, rod bearing specs, timing chain warnings, and stage hardware requirements — all in one reference. Know what your engine can take before you build.

MAINTENANCE GUIDES
Chassis-specific maintenance schedules with severity ratings and direct links to parts from Turner Motorsport, ECS Tuning, and Pelican Parts.

WHEEL & TIRE FITMENT
Offset, width, and diameter fitment data by chassis. Find what fits before you buy.

SUSPENSION CALCULATOR
Spring rate and corner weight calculator. Coilover setup, sway bar tuning, and bushing reference by chassis.

GARAGE
Save and manage your build profiles. Track your setup, power figures, and notes for every car you own or build.

Covers E30 through G-series including M cars. Fully offline. No account required. No ads.


## Version history (last 1 release)

### 1.2.0 — 2026-06-29

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-28.*