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Crash tested: Highest DLP750 Servo

Welcome to the first edition of Crash Tested. The review column where I will take an RC product thats new (to me) and go do my usual thing to see how it performs. There may be crashing, they’re may be winning (sometimes) but at the end, I have a verdict.

On my test bench I have a brand new Highest RC DLP750 low profile servo, aimed at 1/10 on road and off road vehicles in Highest RC’s regular fashion of good looks and impressive specs.

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Mounted up and ready to go! Oh father please forgive the sins of my messy wiring! 

Build and specs

An aluminium top and middle case, with plastic bottom looks very nice in any car. That ‘full metal jacket’ look that everyone likes is mostly there on the DLP750, although slightly diminished due to the plastic bottom cover, but we can get over that once its installed in the car!

A Coreless motor and full metal internal gears puts it on the same level as its main competitors in the Futaba BLS571SV and Savox 1251mg, however its 51.6g weight makes it 10g heaver than the futaba and 7g heavier than the Savox, if you’re a stock racer who’s watching the scales closely, this may be a deal breaker for you.

What the DLP750 loses in weight, it makes up for in its torque and speed numbers, boasting 0.1s / 11.8kg-cm on 6.0V, and 0.08s / 14.3kg-cm on 7.4V, its a full head and shoulders above the Futaba at 0.08 / 11/0kg-cm on 7.4V, meanwhile the Savox only hits 0.09s / 9kg-cm at 6V (no specs given for 7.4V)

With a 25t spline to match up with Futaba and Savox users, plus plenty of extra torque and a flashy ‘Full Metal Jacket’ look, at the cost of 7-10g of weight? This servo looks to be a winner for most.

Track Test

The testing comes at a perfect time, after last week I managed to knock a few teeth off the internal gears in my Savox 1251mg ‘Black Edition’, while I drove my Team Associated B6 around the indoor carpet track at Perth Radio Electric Car Club (PRECC). So it was time for a new servo to continue racing.

On Saturday I bolted the DLP750 into my B6, set the centre & endpoints, and threw the car down at PRECC. Right away the steering felt strong and more sensitive, even on 6.0V BEC .after turning a few laps I was feeling comfortable with the handling and pulled the car in to tinker with the BEC and try again.

After turning the BEC voltage up to 7.2 on my ORCA R32 ESC, i headed back out on track to see if I could truly tell the difference between alleged 11.8kg-cm and 14.3kg-cm of torque. Im happy to say that I have always struggled for steering on the tight carpet track at PRECC, however the increased torque made all the steering inputs happen in a flash, so much so I continued to crash into the apex pipes for the next 3 minutes while I tried to figure out the inputs I needed.

I settled down and added -5% expo into the steering before trying to set some fast laps, managing to steer harder meant I could cut tighter lines and change directions faster in the chicanes, a welcome addition to the small 13s layout! I bested my old hot lap from 13.63s to 13.28 s before the run finished. Enough proof to convince me this servo is up to the task!

To further cement my liking for the servo, during my final practice session I had a huge crash and tumble, which actually broke my modified (HB parts) steering linkage on the B6, but did not harm the servo at all.

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The Highest DLP750 looks great! (nicely broken improvised steering linkage)

Conclusion

If you want a servo with good looks, good specs and solid quality, at a decent price…then you should look no further than the Highest DLP-750 Low profile servo. At an advertised retail of $169.95 its not the cheapest servo on the market, but its still cheaper and looks nicer than its main competitor, the Futaba BLS571SV which would set you back $180+ at most Hobby Shops in Australia. Im very happy with the DLP750 in my B6, and I am definitely going to be putting one in my B64 4WD ahead of the upcoming IFMAR world championships in China!

The Highest RC range is now available at Hearns Hobbies in Melbourne, and Ryper Hobbies in Perth, thanks to the guys at Ryper for putting this one aside for me to purchase and test!