Revolt Breaks 60mph

[capnswanny]

Thanks Mike,
I'm using a Spektrum MR200 and DX2E. I double checked that the throttle trim was at 100%. Then I set it at 125% just to make sure, no noticable change in RPM.

Could it be as easy as resetting the Tx ?
I had the same trouble (stuck @ 38.7) and I found out that I was not setting the throttle trim knob to 2.00 o'clock. That's all it took was full throttle.
Mike

[capnswanny]

Appreciate the advice, I have another new 1800KV motor I can try, then I'll drop in a UL1.
My fastest run of 41.9 was with the m545.
None of the others would break 40.

What i have noticed is that not all the stock motors are created equal there are some that have seen over 50 on a stocker with a m545 but i could not break 40 with mine. From what i have seen is the m445 or m545 is the best prop for this boat some have had luck with the x642 but my best results have been with the m series and my strut has no angle its dead even. I would try another motor perhaps a UL-1 motor if you wanna keep that stock feel to your boat me personally just never had luck with stock components others have just not me.

[capnswanny]

I double checked, it is parallel and within a hair of 1/4"
What prop do you run at 48MPH?

I'm not trying to break any speed records, but I would like to squeeze out as many horses as reasonable.
Thanks for the tip!

Put a straight edge on the bottom of the V, the bottom of the strut should be about 1/4" above and paralell.

My Revolt stock motor & esc gets 48mph in good water.

[capnswanny]

Never did find my buddies DF26. Taped down hatch blew off when the boat flipped at 50 mph, he had a large sized pool noodle in the nose but no joy. Go figure, the hatch had no flotation and it was the only thing we recovered. The rest of it is somewhere in 12-14 feet of milfoil ridden, murky lake water.
Dang...and I was driving

[Mike Caruso]

You don't still have the stock Deans battery connectors do you?

[capnswanny]

No Deans this time, Castle 5.5. Starting to make the switch after a couple melt-downs.
Thanks!

[Bduncan]

Try grim 45 68 on 4s. Strut up all the way and turn fins up an tilted forward quite a bit to reduce drag. Boat will still turn great. I recently put 180 esc to run 5s. 42 55 prop.
Video

https://www.dropbox.com/s/fnh90v5wuuv9lmk/20130303_170852.mp4

[capnswanny]

Thanks for the tips...I'll add the prop to my buy list and try your setup with my 642 and 545.
This weekend I'll raise the strut up all the way and adjust the turn fins as you suggest...if that doesn't work I'm going to add a little nose up with the strut to run a little more loose.

I did switch out the 1800 with a new 1800 with no change in speed. Also dropped in a NIB 2030Kv, also no appreciable change in speed!
I'm putting the 1800 back in for testing.

Next to try is the ESC....only electrics I haven't changed out yet.

Try grim 45 68 on 4s. Strut up all the way and turn fins up an tilted forward quite a bit to reduce drag. Boat will still turn great. I recently put 180 esc to run 5s. 42 55 prop.
Video
https://www.dropbox.com/s/fnh90v5wuu...303_170852.mp4

[chipgibbs]

Don't forget about the weight, as in battery weight. I run a 4200 mah single pack and with a m545 consistantly get 48 mph. If your running a 5000mah pack, I doubt you'll see much over 43 or 44 mph.

I've had great luck with the Revolt and tweeks. I have not changed the original motor or ESC and think 48 is about the max mph you can get from this set up.

ChipG

[Bduncan]

I would agree. I am running a 5s 5450 120c burst pack with turnigy 180 esc. I think it runs close to 55

[MAMBA2200]

when i got 61mph i was using a 5000mah 5s pack sky lipo but i removed the factory battery mount and installed a new one that sits lower in the hull

[capnswanny]

I picked up a few knots today.

First I raised turn fins all the way up and angled so the bottom of the fin was parallel to the hull.
I brought up the aft end of the strut just a hair to lift the bow (maybe 1-2 degrees). It really aired out and ran 43.4 on S/B M545 on the TP 65C 5000mAh 4S pack.

Next I swapped in a 4000mAh pack and gained 0.2mph.

Finally I ran a S/B/De-tongued/Texas Cut X648 and hit 44.8mph.
This was a 5 minute run and everything came back in as cool as Fonzie!

I'm going to pull the battery tray and lower the battery next, don't expect to see a big gain in speed but I expect it will handle better.
Also thinking I'm going to ditch the stock mount, lower the motor, and replace the stock stuffing tube, might even scootch the motor a little further aft.
Got a new X642 I'm going to De-tongue and back cut to try as well. The 648 had monster torque (what a hole shot) but the motor didn't spool up like it could.

Thanks for all the tips guys!
Corey

[Bduncan]

Tune prop more if you are having slingshot effect out of the hole. Or raise strut slightly.

[capnswanny]

I don't think you can avoid the torque of a big wheel like that X648 :)
I just put it on there to see what it would do...

Tune prop more if you are having slingshot effect out of the hole. Or raise strut slightly.

[Casey]

My numbers aren’t that great. Stock Revolt w/ Mark Sholund X642 it only runs 38.9 with the 4s 5000 mah battery in the back of the stock battery mount. I cut the back of the battery mount off and pushed the battery almost all the way to the motor and it runs 39.8. same set up with just a S&B 42x55 it runs 41.5. the boat is not free enough, I think it needs a little positive strut trim, right now it’s 0º, tabs flat and turn fins and rudder kicked back.

As reference my SuperVee 27r runs 42.5 with the same 42x55, much looser and quicker. I haven’t tried it with the X642.