# Jetting Vortex KZ1 / KZ2 Kart — user reviews

> 13 indexed App Store user reviews of Jetting Vortex KZ1 / KZ2 Kart by Ballistic Solutions LLC, rated 4.60/5 from 11 ratings.

- Source: https://appshunter.io/ios/app/jetting-vortex-kz1-kz2-kart/id1451631744/reviews
- App overview in markdown: https://appshunter.io/ios/app/jetting-vortex-kz1-kz2-kart/id1451631744.md
- Rating breakdown: 5★ 9 · 4★ 1 · 3★ 0 · 2★ 1 · 1★ 0

## Newest reviews (2 of 13)

### 5/5 — Awesome

*2019-02-13*

Jetted my rvxx with the reccomended values and kart runs better!

### 5/5 — Very useful

*2019-02-12*

Very useful and precise!!!

## Most critical reviews (10 lowest-rated)

### 2/5 — Jet doesn’t change and needs Rok shifter engine

*2022-03-31*

Need to add ROK Shifter to the engine options, and adjust jetting to show an option for Rok shifter specs on the carb. I can’t get any settings to mirror the specs in rule book and with wildly varying weather conditions it seems to always show a 165 jet.

### 5/5 — Must have

*2019-12-27*

Reduce lap time almost 1 second. Big deal :)

### 5/5 — Good

*2019-04-02, version 1.1*

Jetted my rvxx with the reccomended values and kart runs better!

### 5/5 — Good

*2019-04-01*

Jetted my rvxx with the reccomended values and kart runs better!

### 5/5 — Funciona muy buen

*2019-03-30, version 1.1*

Lo he usado y es la app q mejor q funciona.

### 5/5 — Magnifico

*2019-03-28, version 1.1*

Para mi es un programa magnifico, una herramienta necesaria para tener una buena carburacion.

### 5/5 — Bravo

*2019-03-20*

Reduced lap times 1.2 seconds!!! using this app.
Easy interface, fast GPS and weather acquistion. Bravo!

### 5/5 — Gut!!!

*2019-03-03*

Das spart auf jeden Fall Zeit und Geld. Sehr glücklich.

### 5/5 — *****

*2019-03-02*

Die ganze zeit benutzen wir dieses App. Ich empfehle dieses Programm wärmstens für anfänger und mechaniker. Dadurch sparen sie viel zeit.

### 5/5 — Nice

*2019-02-28, version 1.0*

Easy interface, fast GPS and weather acquistion. Bravo!

## Most praised reviews (1 highest-rated)

### 5/5 — Perfect

*2019-02-26, version 1.0*

Work perfect for me. Save a lot of time and money for me and my mechanic.

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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 2026-08-29.*