Big block conversion not as planned

[samk]

What am i doing wrong?

I installed the MMP with 5700 KV motor! (this is the 4 pole motor)

I have it geared 31 50

I have beadlock wheels

I put two 3S traxxas batteries in parallel

The thing is slower than before...... it appears to be as fast as running single NIMH

I thought this was suppose to make it a rocket....

Any advise?


Maybe i need to d something to ESC with the programming card to make it move faster?

[50togo]

what batteries do yo run as in c rating and capacity?

[samk]

I used the traxxas ones 25 c 11.1v 1400 mah MAX bust rate 50C

I also have 2 being charged that arrived last week. They are the **** tech 1400 mah 40-80c 11.1v

Maybe my clutch it slipping? Am i suppose to tighten all the way ?

[50togo]

traxxas ones might not cut it about 70 amps combined **** will do better at 112. but i would run more

[samk]

3s with more does not fit ?

[50togo]

i would get boost **** 1800 60c 108 amps ea

[50togo]

the boost fit with room to spare about 43 ea shipped got2gorc

[50togo]

i know alot of money but the are the best

[samk]

Tried that few times but got ignored which is why i got couple of the other ones. Will see how it goes once charged.

Should i tighten the clutch or leave it like stock?

[50togo]

do you mean you emailed him? i know they are bad at that.then once in a while he will return the email then i reply then he replies all the same night. i would tighten all the way then back off 1/2 turn

[50togo]

the ******* should do better .let us know!

[Carnage334]

Clutch should be very tight. With all the power from the BB, I didnt tighten it all the way and smoked the clutch in 30 seconds. Give it like 50% throttle read fast with the lid off and listen for a zipping or hissing sound. If you hear that your clutch is slipping. I have mine about 90% tight.

[samk]

Clutch should be very tight. With all the power from the BB, I didnt tighten it all the way and smoked the clutch in 30 seconds. Give it like 50% throttle read fast with the lid off and listen for a zipping or hissing sound. If you hear that your clutch is slipping. I have mine about 90% tight.

On 3S? Which 3S in that case.

I will do the clutch now and report back

[Petertje60]

2 x Traxxas 1400 3S 25C give you 70A which is 777W and probably more because the Traxxas Lipos seem to be underrated. That will be more than enough to make it quite faster than the stock set. **** tech batteries are not bad at all, but I highly doubt that they meet their specs.

I agree about the clutch setting that might help.

[samk]

I agree, clutch tight and all i need to do is go out to test. Just waiting for some guest to be on their way

If it does not perform it would be embarassing haha

[50togo]

i tested the ******* **** 2250 65/130 next to the boost 2 cell and a ******* 2200 30c. ran 40.6 with the 2200 and 43.6 with both the boost and the ******* 2250

[Petertje60]

i tested the ******* **** 2250 65/130 next to the boost 2 cell and a ******* 2200 30c. ran 40.6 with the 2200 and 43.6 with both the boost and the ******* 2250

So that is 3 mph more with a battery that can do 146A instead of 66A?

[samk]

wwent out and the thing still feels slow.

Also, no backflips.

With the original motor and 3 s easy backflips.

[samk]

Maybe the ESC is in training mode of it has one? I have the MMP

[50togo]

Is the slipper new condition? Not slipping?

[50togo]

Sorry Sam went off topic just wanted to show what stronger batteries will do. Peter any ideas for sam

[Petertje60]

Did you have to swap 2 motor wires to make the car run in the right direction? If that is not the case and you reversed the direction with the software, you might be running the reverse amount of power. You should notice that when the car goes way faster backwards.

[samk]

Slipper tight now but first took it apart and looked ok, still has life on it.

Ahhhh

What i did was reverse the direction in the remote control menue settings. followed traxxas guide.

Am i suppose to swap 2 motor wires instead? :-) Which ones ?

:---) :-------------------------)

[CMD-J]

Doesnt matter which ones you swap with a brushless motor, either two of the three will do.

One other thought: Maybe check for a cold solder joint. If one of your wires get exceptional hot, you might have a cold solder there. Had that problem once, car would run, but very slow and heat up fast.

[samk]

reversed wires and reset the transmitter. Feels better just need to go out and put it on the road before i can confirm anything

[Petertje60]

I hope it's solved. Not a bad idea to check the settings of the MMP with the Castle Link software.

[samk]

Have not tested it on the road yet. My wheel nuts keep coming loose

I have the bedlock wheels. What did you guys do to keep them from getting loose? blue thread locker?

[Petertje60]

Have not tested it on the road yet. My wheel nuts keep coming loose

I have the bedlock wheels. What did you guys do to keep them from getting loose? blue thread locker?

I'd say big hands Don't be too scared when tightening the wheel nuts. If they start to bind, you went too far. Blue Loctite will help tho.

[samk]

put some loctite on it.

I had emailed proline and they said not to overtighten and that i should be fine. I made it pretty tight but it got loose.

I was throttling and braking in the air so that might have made it easier for nuts to loosen.

Will test the car in the next hour

[50togo]

Make sure your not under power when you land and easy on the breaking. The two hardest easiest ways to destroy your diffs!

[samk]

Ok, it is very fast now.

Dog barking and distracting me as a drove in a narrow road... lost control and bang into a car tire.

Damage: bent traxxas dive shaft.

Can it be straightened or will i need to get a full set again?

[50togo]

Are you talking cvd? Last time.I checked on backorder just bend it back

[samk]

CVD. It is almost straight now but still cause whel to wobble slightly. I guess i can live with that in the mean time

Got dam dogs!

[samk]

Not sure how come the traxxas pushrods and steering shaft survived?

[samk]

Not sure how come the traxxas pushrods and steering shaft survived?

[CMD-J]

FYI, the Traxxas CVDs are rebuildable. You can get alle parts separately.
The dogbones are part TRA 7153, they cost about $10 for one piece.

Destroyed a few myself.. They can bend during side impacts when jammed into the drivecups.

[50togo]

cmd did you hear the part that they are on backorder

[50togo]

the rpm arm flex quite a bit .i have bent a few cvds ,lost one cvd but never bent a traxxas aluminum toe link or pushrod!i have broke the steering though

[CMD-J]

cmd did you hear the part that they are on backorder

Sorry, somehow managed to miss that.
Did a quick search, they are available on eBay US. Dunno were samk is located though?

[samk]

Now it is straight.

I ordered another kit of 4 to have for the future cause it is bound to happen again Now it is FAST!