Possible Kontronic HV purchase...

[Serum]

why is there a special car version of the jazz 55 and the 70?

[lincpimp]

Originally Posted by Serum

why is there a special car version of the jazz 55 and the 70?

Kind of like the old quark air masters that had all of the programming in them and you just selected what application you were going to use from a menu. This is nice as most companies charge a premium for their car software and do not give a choice in controller usage.

[othello]

Those ESC have more car modes and are intended for 1:10 cars. They have a cell limit of 10 cells (NICD/NIMH).

But besides the software the Jazz 80 and jazz 70 car is identical. Some guy in germany even uses his Jazz 70 with 12 cells NimH.

All Jazz controllers (without the car extension) are multipurpose ESC which have 2 car, heli and Aircraft modes.

Jazz ESC are picking up momentum in germany when it comes to 1:8 car use. Most guys use the Jazz 80 with a Fun 600/21 (or 25) in their Emaxx, Ezillas, twinforce or 1:8 Buggys with 4s lipos. My first setup im my buggy was a Jazz 80 with a fun 600/25 and 12 cells Nimh. This components still are working great in my Ezilla. But the Kontronik motor is not as efficient as a Neu and will heat up (thus needs a fan and/or heatsink). Due to the Amps flowing (around 100A burst) when only using 4s the Jazz 80 needs at least a heatsink.

Kontronik btw doesn't recommend Jazz ESC (without car extension) for car use.

Originally Posted by othello

Kontronik btw doesn't recommend Jazz ESC (without car extension) for car use.

Who said that? I've heard the opposite from Kontronik...

FWIW, I run a Jazz 40-6-18 on 4S in a 1:10 buggy. They work great, and the latest version 8 firmware has fixed one bug I used to experience, and improved the braking/reverse algorithm since version 7.

My BJ4WE has the Jazz setup right now. I was running it in my old RC10 when I posted some results of it. The beauty of the low voltage Jazzes is that they have a builtin switching BEC.

Well I've got a 1:8 conversion in the works, but haven't finished it yet. It's been months since I started it! Hopefully I'll get it finished soon so that I can post my experiences. I plan to run a Jazz 55-10-32 and a Neu 1912/1Y on 10S Lipo in it.

[othello]

Some guy in germany had troubles with a jazz 80-6-18 and Plettenberg Maxximum in a Emaxx. When going from full throttle to say half throttle the motor followed immediately his command: for him it was like braking. While jumping it was troublesome (now he uses a Schulze and does not experience the same behavior).

So he called kontroniks support and their answer was that he was the only one experiencing this behavior and ultimately he should have been using a Jazz car and that they do not recommend other Jazz controllers for car use.

That is the story behind it!!!

Your future 1:8 setup sounds interesting. The Jazz 55-10-32 is a powerfull ESC and is used in helis at up to 4KW (10s and 120A). The 1912 should run very cool. Don't forget to post pictures and comments on this setup. Sounds very promising. Good Luck with your future conversion.