Mopar2Ya's RC's

[Mopar2Ya]

A few pics of what I have now.





The motors are TP Power 1090kv & SMC 1900kv, I just installed the SMC in my ET48(replacing the TP).

[Mopar2Ya]

I ended up putting a Tekin 1350kv sensored in my ET48(17T pinion). I had few issues, after binding & calibrating(w/o pinion installed), I went to run it & it went WOT for no reason. I re-calibrated & it seemed to be ok. It sounds odd, @ 1/4 throttle & above it makes a strange noise (compared to the previous setup), it's like a crackling/screech. Any ideas?
I have sense adjusted the RX8, putting it at 0deg timing, turned off the current limiter, & changed to a 18T pinion. I have yet to run it w/the new changes.
Edit: I got a full run in, the noise is less noticeable now only ~1/3-1/2 throttle. It still feels under geared. Some of my temps were high: motor 189, batt 140, cd 133, & esc 110(outside temp ~75 & humid, batt SMC 6s 60c 3600mah). Am I over or under geared?
Edit: I went up to a 21T pinion & didn't get a full run, my cheap servo may have fried. It didn't help my temps motor 205, batt 135, esc 130.
Edit: I tried 16T pinion & got 183 on the motor after only 3/4 of a pack.

[Mopar2Ya]

I wanted to try something new so I thought about an SCT, but ended up w/a buggy. I thought about converting the EB into an SCT, but then decided no.
Parts list:
Kit: EB48.3
ESC: Tekin RX8 Gen2
Motor: 1350kv truggy
Servo: Hitec 7950TH
TX/RX: Futaba 4PX / R204GF-E
Tekno: TKR5262 aluminum cd mount, TKR5211X lite motor mount, TKR5791 SCT body mounts
AE: Wide Hexes 89330
Body: JConcepts Illuzion Rustler
Wheels/Tires: Pro-Line Desperado/Badlands 3.8
Bumper/Skid: Front TBR bumper/Rear DE Racing XD skid
Diff oils F/C/R: 50/500/30
Shock oils F/R: 60/50