Miss Geico-What Works For Me

[ron1950]

same here on stock 45a esc ...but has been very cool every run so far....willl try the 440 for a few mins next time out and see...did u see any speed improvement with it over the 642>

[Diesel6401]

same here on stock 45a esc ...but has been very cool every run so far....willl try the 440 for a few mins next time out and see...did u see any speed improvement with it over the 642>

To be honest no not really, without the gps I wouldn't know for a fact. It was not a noticeable difference though.

[jac4412]

I agree with you Dies... My MG was absolutely screaming on the pond... look beautiful. If I didn't have that slight top end bounce it would really set it off, but she really looks gorgeous

[Darin Jordan]

To be honest no not really, without the gps I wouldn't know for a fact. It was not a noticeable difference though.

Just for reference, the stock MG plastic prop, which is essentially a Prather 215, has 2.52" of pitch, and is 1.64" (41.6mm) in diameter.

For comparison, the X642 is 1.65" (42mm) in diameter, with a pitch of 2.638".

In other words, I wouldn't expect a BIG performance difference between the two.

Another point of reference is that the plastic MG prop vs. the Stiletto stainless version of the same prop, tested on my boat to be 2mph in difference... 36mph vs. 38.

If you want to see some decent speed increase, you might want to try the X645, which not only has more pitch (2.835), but also more blade area do to it's larger diameter. This will be pushing the stock ESC, but the motor will take it just fine. Just watch your amp draw and runtime.

[Diesel6401]

Just for reference, the stock MG plastic prop, which is essentially a Prather 215, has 2.52" of pitch, and is 1.64" (41.6mm) in diameter.

For comparison, the X642 is 1.65" (42mm) in diameter, with a pitch of 2.638".

In other words, I wouldn't expect a BIG performance difference between the two.

Another point of reference is that the plastic MG prop vs. the Stiletto stainless version of the same prop, tested on my boat to be 2mph in difference... 36mph vs. 38.

If you want to see some decent speed increase, you might want to try the X645, which not only has more pitch (2.835), but also more blade area do to it's larger diameter. This will be pushing the stock ESC, but the motor will take it just fine. Just watch your amp draw and runtime.

The x642 heated the esc up to about 128F after a few minutes on the stiletto motor/bj esc combo. With the 40x52/3 temps dropped 12 degrees and hop went away. I'm not really after speed in this hull. I just really want decent runtime good temps no hop and a smile. Now that I know what prop worked well if I get that need for speed I could try a moving up in prop. I don't have a x645, but I do have a m445. I could run a few short passes and check and determine if it can handle the extra pitch. I just don't wanna blow my esc.

[jac4412]

All i know is that I can't get the freaking bounce out... it's such a shame because this is such a nice looking boat when she runs, really impressive performance too

[LiPo Power]

Diesel6401 was running it on 40x52/3 prop with great resoults, why dont you try few props and see what works for you? ( M445, x650 )
It works for them so I am sure it's just a quastion of tweeking it....

All i know is that I can't get the freaking bounce out... it's such a shame because this is such a nice looking boat when she runs, really impressive performance too

[jac4412]

Dies, did you see a speed difference? I've tried the m445, x642, adjusting the strut and batts, and strutter. Nothing yet. With a lowered strut and x642 I've got a slight bounce, and that's the best I've gotten

[tiqueman]

Strut neutral and dropped so the top of the strut is even with the hardware bracket.

Deisel, Lets get away from this way of strut height explanation and tell it the more accurate and correct way. Boats are coming out w/ brackets mounted at different hights on the transom. 1/8" difference in height can make worlds of difference how the hull performs. Where is your strut while sitting on a flat surface (ie table)

My pic, no bounce at all on a M445

[tiqueman]

And my COG is 7-7/8", measured from the back of the ride surface or sponson, not the transom. Not measured by 1/4 inch off the battery tray or the middle of the "O" in Geico. Because again, everyones can be slightly different. And the slightest cog, stru sdjustment etc in a cat means a lot.

[Diesel6401]

Deisel, Lets get away from this way of strut height explanation and tell it the more accurate and correct way. Boats are coming out w/ brackets mounted at different hights on the transom. 1/8" difference in height can make worlds of difference how the hull performs. Where is your strut while sitting on a flat surface (ie table)

My pic, no bounce at all on a M445

And my COG is 7-7/8", measured from the back of the ride surface or sponson, not the transom. Not measured by 1/4 inch off the battery tray or the middle of the "O" in Geico. Because again, everyones can be slightly different. And the slightest cog, stru sdjustment etc in a cat means a lot.

Yea I can do that. Next time I get to the garage I'll get some numbers. If my information or description confused anyone sorry bout that.

[Diesel6401]

Ok got some measurements today and pics to go with them. Now I can give a detailed breakdown of my setup.

Motor: PB 1800kv, 5.5mm bullets
ESC: Stock MG 45 amp, 5.5mm bullets, bec disabled, timing high, brake disabled
Prop: Grim 40x52/3 S&B
Strut depth: 1 3/16"
CG: 7 3/4"

No bounce, hopefully I can get some video.

[tiqueman]

Ok got some measurements today and pics to go with them. Now I can give a detailed breakdown of my setup.

Motor: PB 1800kv, 5.5mm bullets
ESC: Stock MG 45 amp, 5.5mm bullets, bec disabled, timing high, brake disabled
Prop: Grim 40x52/3 S&B
Strut depth: 1 3/16"
CG: 7 3/4"

No bounce, hopefully I can get some video.

A little more clear, but I still have a question or two... Where are you measuring your srtut depth from. It seems as if your hull is sitting flat w/ your strut. If I measure mine like that to the bottom of the transom it would be about 3/4". Mine at that measurement is 7/8". If measured from he bottom of the strut bracket, then no es bueno as a 1/16" diffence in mounting from one boat to another will significantly change the outcome. So wheres you 1-3/16 from-to?

Also, hows that 40/52/3 doing on it? Any gps/ amp results Mr Telemetry man?

[Diesel6401]

A little more clear, but I still have a question or two... Where are you measuring your srtut depth from. It seems as if your hull is sitting flat w/ your strut. If I measure mine like that to the bottom of the transom it would be about 3/4". Mine at that measurement is 7/8". If measured from he bottom of the strut bracket, then no es bueno as a 1/16" diffence in mounting from one boat to another will significantly change the outcome. So wheres you 1-3/16 from-to?

Also, hows that 40/52/3 doing on it? Any gps/ amp results Mr Telemetry man?

Only temp reading which was 114F if I remember correctly on the esc. Motor was fine. If you look at your pic compared to your pic you'll see that my strut is dropped a lot lower then yours. You can't see the top of my strut showing but on yours you can see a decent portion of the strut showing. That's the difference in measurements. I am measureing with the boat on a flat surface resting on the the strut and sponsons just like your pic and I am measureing from the top of the table surface to the bottom of the transom no to the bottom of the strut bracket. You can see 6" rule at the transom. Weather promitting I will get some speed checks. I need to buy a eagle tree as a xmas gift to myself.

[tiqueman]

So how is that working? Heres where Im still confused. If your boat is sitting flat on the table and your strut is resting on the table as to not lift the sponsons off the table, your actually 1/8 higher than I am. My boat set on a table leaves the tails of the sponsons a light 1/8 off the surface. So I ask again, how from the surface of a table to the bottom part of my hull at the transom perp. to where the bracket is mounted, measures less on mine than yours, when Im running deeper. See where Im coming from on this? Is there 2 different hulls out there?

Im by no means going thru all this to doubt you, or to change my set up. Ive found the sweet spot for a M445 aned Im leaving it there for a while. Just isnt making sense to me how Im getting a smaller measurment. If I lined the my strut up comparing to hownmuch you have out the top of the bracket, which is practically none, my hull would be 1/2" easy in the air. HOWEVER, the pics of where our brackets are seem to be w/in 1/16. UNless Im not seeing yours properly on where its location is