Not to take this thread in a different direction but I'm surprised so many of you seem averse to the 4mm connectors...honestly for the last few years I've been running the 3.5mm connectors on my BL 1/8th truggy. With the ESC I'm using, I *have* to use 3.5's from the ESC and they were on the motor so I never changed anything.

In a perfect world, what connectors would you guys want to use? 4mm? Something bigger?

Thanks,

DM

Tis ok MacII... I think I've been reading around the forums and it might even have been stated on an earlier page here to use 5.5 or hard-wired. At least that was someone's opinion. We'll see what others say.

Ok my first try was just the MM settings...
punch control - disabled
Timing - lowest
start power - medium

This was much better... if I eased into the throttle the cogging was pretty much gone... even a medium squeeze it was there but I don't think I would notice much driving the buggy. I ran it for about 4 min with no fans checking the temps and was a little surprised. The MM never got over 105 degrees... but the motor got up to 175 degrees. Now what really surprised me was the wiring between the motor and the speed control. The wires from the motor were quite hot like the motor... but then from the connectors to the MM the wires were cool. I think that may be telling me my connection isn't very good. I would have expected the entire length of the wire to be reasonably close in temp from one end to the other. Am I correct?

The wires on the motor end are probably hot due to the motor being so hot. Why the esc wires were cool is beyond me. A hot motor/cool esc situtation is usually a sign of undergearing.

What gearing are you running? What motor (I can't remember)?

Try cranking the start power up to high. It should help. If you are having cogging problems and your motor is so undergeared as to get it that hot, I'm thinking that you have a connection problem. I would first try the largest connectors that you have or hardwiring.

I tried the 4mm connectors and they work fine for a while, but with the rigors of hard bashing and racing on the track, the male connectors loose their spring. I've actually had 4mm connectors just fall out of the female end. This same thing holds true for the 3mm connectors as well. I don't know why Lehner chose those connectors for their motors, but many here do one of two things.

They either order the hi amp versions of the motors, so that they can put their own connectors on the motor; or they just solder the wire directly into the 3mm socket on the motor.

I've been using the 5.5mm connectors. They are hefty and have a pretty high current rating.

I will be running 15/46 at first but right now the none of the electronics are in the buggy. I don't even have a pinion on the motor. So I guess that would be undergeared then wouldn't it. Geez sometimes you can't see what's right in front of you. Well it runs maybe I shouldn't worry about it so much till I get it in the buggy. I just wanted to make sure everything worked first.

running a motor unloaded will heat it up quickly

padailey, don't run that motor without a load like that. You don't want to over rev it. And yes, that would be an undergeared situation. The esc was probably so cool because it didn't have any demand on it.

15/46 sounds good for a 9XL or so. If you are running a 7XL, you might want to back off a couple of teeth. I usually run 12/46 with a 7XL, 14/46 with an 8XL and 16/46 with the 9XL. Lately I've been running 14/46 on the 9XL for the track and like it a lot.

I'd quit messing with it until you can get it installed.

Moderators could you move this to the brushless section. I've made my purchases so this thread is probably out of place now. I will have some more questions I'm sure so maybe the brushless section would be a better fit.

Thanks,

Paul

Moved :).

Ok maiden voyage complete!! Geez I've been spending so much time on it lately I was scared to drive it! :002: But I got over it! :027: At 15/46 the top end wasn't overly impressive but it didn't take long to get there!! Anyway I'm using it for racing so it should be good there.. maybe even better since our track is getting a new layout and the straight is even shorter than before. The braking was really quite impressive though.. basically just using drag brake. Slows quickly and evenly.. I like! Not super smooth at very low speeds but very manageable. It seems super heavy though.. I'll have to get it on the scales and then maybe a diet! I'll get pics out soon.

Well I've been taking it pretty easy so far... well at least not trying to mash the throttle too much and not from a dead start. But I experimented and was at a stop but on the throttle just a tiny bit so I could hear everything wanting to go forward (kinda like setting your throttle for a little creep) and mashed it... wow worked great!! So I went to the dirt and from dead stop.. throttle at neutral.. mashed it... @$#%$%^$# awful noise... thought the spur was gone, but its not. Please don't tell me its the diffs?!?!? I'll tear it apart tonight or tomorrow to check. What weight of oils are everyone running in their diffs? Wondering if I can just kinda follow what the nitro guys are doing or if I need something different. Also because my buggy is so heavy do I need to adjust for that.

Well it was the diffs... I just cleaned them up and rebuilt them and it ran awesome. Had my first race day with the "beast" on Sunday.... wow lots of fun and car worked quite well.

Temps..... I was a little unsure about this because just messing around my motor had hit 180 but hadn't run with my fans so I wasn't too worried but still not sure.
First Qual w/fans 6 min Motor - 175 ESC - 155.
Second Qual w/fans 6 min Motor - 165, ESC 150.
B Main no fans 10 min Motor - 160, ESC - 160. (Not sure why my fans wouldn't work but I think I might have had the wires connected backwards.) :(

Doesn't this show my gearing is pretty much right? I'm not concerned about going faster or slower it was about the same top end as any nitro I raced but quicker even with my buggy a little overweight.

I did manage to bump up to the A main. I was running Platinum 4800 lipos in series and was pretty sure I could make it the whole 15 minute main if I drove smooth and didn't crash too much. The mah I had been using per min was going down as I drove better... 1st qual 330mah/min, 2nd 280mah/min, B Main 260mah/min. But after the B I wasn't sure if I could get enough charge into the batteries. Well my chargers were only putting in .15A for a charge when I had to pull them off so they were nearly done. Started the A and about 5-6 minutes in someone pulled the plug on the computer... had to restart the race!! RATS!! Had been up to 5th at one point! Anyway I knew I couldn't make it another 15 minutes so I just took it easy hoping for some cars to have problems but no one did. The race director announced 20 secs left and I was about to cross the loop and I thought "woo hoo I'm gonna make it!" 5 seconds later the lipo cutoff kicked in!! lol

You Des Moines guys should get on over to Omaha and show the Nitro boys here the real potential of an electric 1\8 scale. I'm just a novelty show! lol

Congrats on the success of your conversion. I'm glad to hear that it went well for you.

Hope you get things sorted so I can say the same FOR YOU!

Well, I'm hanging on, but slowly losing interest. I've actually gone two days without touching any of my trucks. If/when it gets to be fun again, I'm sure that I'll dive right back in. Thanks for the sentiment though.

Here's a couple pics of Phase I.