Ballistic 550's a reality

[hlb14]

so which would be better suited for an rc8 on a tight indoor track limited to 2s lipo? i did the math on a 5.5 being 3700kv geared 17/46 to equal roughly 28 mph and ordered a 5.5... then i read the tuning rotor that comes with the ballistics reduces the kv by 20%. Would the 4.5 work better? O, i will be using a mmp if that helps, thanks

[ta_man]

Originally Posted by hlb14

so which would be better suited for an rc8 on a tight indoor track limited to 2s lipo? i did the math on a 5.5 being 3700kv geared 17/46 to equal roughly 28 mph and ordered a 5.5... then i read the tuning rotor that comes with the ballistics reduces the kv by 20%. Would the 4.5 work better? O, i will be using a mmp if that helps, thanks

You should also consider that the Novak motors don't reach rated KV under load. I tested a HV6.5 in a 1/8th buggy and it was running at only 3000KV at the top speed of the car (on 4S geared 9:46 with standard buggy diffs) vs the rated KV of 3400.

[NovakTwo]

Originally Posted by ta_man

You should also consider that the Novak motors don't reach rated KV under load. I tested a HV6.5 in a 1/8th buggy and it was running at only 3000KV at the top speed of the car (on 4S geared 9:46 with standard buggy diffs) vs the rated KV of 3400.

All of our motor Kvs are measured (and listed/speced) "unloaded".

[ta_man]

Originally Posted by NovakTwo

All of our motor Kvs are measured (and listed/speced) "unloaded".

Exactly. So a speed calculation based on the speced KV will not give a true indication of the top speed of the car.

[hlb14]

if i went with the 4.5 (5000kv) subrtact 20% for the tuning rotor and a few hundred when you add a load and that would put me close to the 3700 that i based my calculations on...

[kingdomracer]

Originally Posted by hlb14

if i went with the 4.5 (5000kv) subrtact 20% for the tuning rotor and a few hundred when you add a load and that would put me close to the 3700 that i based my calculations on...

Just wanted to know an update on this setup. I'm debating on ordering the same setup or go with the 5.5
I'm trying to keep temps down in a Slash 4x4.
I like the idea of running the 550 motor with low timing and high sensored cheat mode timing for the straights and kick in around 8,000-12,000 (depending on actual testing to narrow it down).
I already own the 6.5 and 14mm tuning rotor. I like this setup on smaller tracks but I need a setup for larger/open tracks.

[NovakTwo]

We built additional higher wind stators for our Ballistic 550s a while back, but somehow we dropped the ball waiting for Bob to measure the Kvs.

We have just announced Ballistic 550 stator replacements---up to 13.5T (1600Kv):

Tower Novak Accessories

Also:

Sneak Peek of new Novak 1/8 Brushless Motor