4PK Setups, Tips, Tricks and Help

[moto261]

i think it all works but the display and i would love to see what im putting the rear wheels so sending it in sounds like the only way to go for now

Originally Posted by Harley0706

What are you try to accomplish? If you are setting up an MOA, just follow the video.

[jmontes_21]

Originally Posted by whoodie

SW2 needs to be set to "Prog Mix 1" or "Prog Mix 2" depending if you want that switch to front or rear dig. Let me know if this works.

I tried that tried lowering the values i can't get it to work can it be done

[Harley]

Originally Posted by jmontes_21

I tried that tried lowering the values i can't get it to work can it be done

I just did it using the instructions below. Works exactly as you were asking.

Originally Posted by whoodie

Got it, here is the mix that will allow you to use 2 different buttons to control the 3rd channel.

PMIX1
mst:ch3
slv:ch3
ofst:+100

PMIX2
mst:ch3
slv:ch3
ofst:-100

Using the "offset" feature of the mix menu is the key here. It allows the 3rd channel to go full throw in one direction with the push and hold of a button. I assume the 3PK has 2 mixes, right?

Let me know if you need more detail, I can type it up tonight.

Originally Posted by whoodie

SW2 needs to be set to "Prog Mix 1" or "Prog Mix 2" depending if you want that switch to front or rear dig. Let me know if this works.

[Harley]

You need to turn the mode on.

Originally Posted by jmontes_21

Ok i read it again can't get it to work here is the pics you asked for
http://i876.photobucket.com/albums/a...2-07195226.jpg

[jmontes_21]

Thanks guys i got it to work i will post pics in a few of my settings thanks for your patience

[Speedracer19]

Originally Posted by Speedracer19

Thanks, this worked.
But it still "unlocks" when using reverse.

I figured this one out.
Thanks for the info on these Transmitters Harley, Whoodie.

[Gat714]

Harley (or anyone who can help me), with your 4PK MOA setup video (which was great BTW) i can only overdrive my rear by 20 (-120).

example (at full throttle):
channel two (front motor / second bar down) is (for all intensive purposes) at -100
channel three (rear motor / third bar down) is at -120 (which is maxed out)

My question is.. is there a way to somehow tune my radio for that third channel (rear motor) to go past -120 OR better yet be able to dial down channel two (front motor) with a seperate dial such as DT.2?

I'd like the end result to be able to dial down the front motor just as much as your setup allows me to dial down the rear.

There are situations where i'd like my front motor to be spinning at least half as fast as my rear. I have my rear motor set to (like you suggested) DT.1. I'd like to be able to dial my front motor just as much as my rear with DT.2.

Tell me there's a way please! Thank you

[Harley]

With the current setup there is not a way to do that.

You can revert to one of the older setups you can do it. I have never seen a need for this so I don't recommend it. Having to buttons controlling mix ratios is asking for problems on course.

Originally Posted by Gat714

Harley (or anyone who can help me), with your 4PK MOA setup video (which was great BTW) i can only overdrive my rear by 20 (-120).

example (at full throttle):
channel two (front motor / second bar down) is (for all intensive purposes) at -100
channel three (rear motor / third bar down) is at -120 (which is maxed out)

My question is.. is there a way to somehow tune my radio for that third channel (rear motor) to go past -120 OR better yet be able to dial down channel two (front motor) with a seperate dial such as DT.2?

I'd like the end result to be able to dial down the front motor just as much as your setup allows me to dial down the rear.

There are situations where i'd like my front motor to be spinning at least half as fast as my rear. I have my rear motor set to (like you suggested) DT.1. I'd like to be able to dial my front motor just as much as my rear with DT.2.

Tell me there's a way please! Thank you

[Gat714]

Originally Posted by Harley0706

With the current setup there is not a way to do that.

You can revert to one of the older setups you can do it. I have never seen a need for this so I don't recommend it. Having to buttons controlling mix ratios is asking for problems on course.

Well for instance, sidehilling (especially turning uphill) is an example where i would want to overdrive the rear. I just recieved my 4PK in the mail today so i havn't had a chance to drive it yet, but my buddy has a 4PK and he is able to dial down both motors. Do you think that (in the situation described above) -120 to the rear would be enough overdrive?

[Harley]

Originally Posted by Gat714

Well for instance, sidehilling (especially turning uphill) is an example where i would want to overdrive the rear. I just recieved my 4PK in the mail today so i havn't had a chance to drive it yet, but my buddy has a 4PK and he is able to dial down both motors. Do you think that (in the situation described above) -120 to the rear would be enough overdrive?

20% is a huge difference when added to the natural clod stall effect. I rarely go below 70 or 80% on the rear motor. Remember, this is the setup that is winning every major event for the most part. If it wasn't the best it wouldn't be the setup of choice. Just food for thought. Don't over complicate your driving experience, you will waste precious seconds on course.

[Gat714]

Thank you for the quick response

[Gat714]

Upgraded wheel grip. Bahaha

[Harley]

Originally Posted by Gat714

Upgraded wheel grip. Bahaha

Damn I thought my 1.9 was baller

[Gat714]

Originally Posted by Harley0706

Damn I thought my 1.9 was baller

Haha 2.2 is just plain gangster

[Gat714]

So i got to thinkin about it, and what i might do to get more overpower control for my rear motor is to go with a 14T pinion in the rear and 13T pinion up front. This might make that -120 to the rear seem more like -130 or -140. Then for normal driving (same power to both motors) i might run the rear motor at like -90 or so. Thoughts?

[whoodie]

Originally Posted by Gat714

So i got to thinkin about it, and what i might do to get more overpower control for my rear motor is to go with a 14T pinion in the rear and 13T pinion up front. This might make that -120 to the rear seem more like -130 or -140. Then for normal driving (same power to both motors) i might run the rear motor at like -90 or so. Thoughts?

Clodstall will be worse with a higher tooth pinion in the rear.

I don't get why you want to over power the rear so much. In sidehill situations, overpowering the rear will cause the low front tire to roll over onto it's sidewall, eventually causing the truck to trip over that tire adn rolling over. Underdriving the rear is what you want to do when turning uphill.

[Harley]

Originally Posted by Gat714

So i got to thinkin about it, and what i might do to get more overpower control for my rear motor is to go with a 14T pinion in the rear and 13T pinion up front. This might make that -120 to the rear seem more like -130 or -140. Then for normal driving (same power to both motors) i might run the rear motor at like -90 or so. Thoughts?

I think it is unneeded. There just isn't a reason to need such large a difference. Drive the truck more and you will see.

[Gat714]

Originally Posted by whoodie

Clodstall will be worse with a higher tooth pinion in the rear.

I don't get why you want to over power the rear so much. In sidehill situations, overpowering the rear will cause the low front tire to roll over onto it's sidewall, eventually causing the truck to trip over that tire adn rolling over. Underdriving the rear is what you want to do when turning uphill.

It depends on what kind of rock you are on. If you underpower the rear, sometimes the front has a tendancy to spin causing the front end to slip downhill. Overpowering the rear just enough so that the front still has power to help and still has turning grip, yet not spinning causing the front to slide downhill, is what i'm talking about. I've used this method with good results.

[whoodie]

Originally Posted by Gat714

It depends on what kind of rock you are on. If you underpower the rear, sometimes the front has a tendancy to spin causing the front end to slip downhill. Overpowering the rear just enough so that the front still has power to help and still has turning grip, yet not spinning causing the front to slide downhill, is what i'm talking about. I've used this method with good results.

Sure, I know this exact situation, been there many times. It's important to keep the front and rear wheels spinning at nearly the same speeds. What motors are you running? I've seen many 4PK/FXR setups ruined by lower cost motors, or motors that aren't in that great of condition.

[Gat714]

Originally Posted by whoodie

Sure, I know this exact situation, been there many times. It's important to keep the front and rear wheels spinning at nearly the same speeds. What motors are you running? I've seen many 4PK/FXR setups ruined by lower cost motors, or motors that aren't in that great of condition.

I was runing HH 45T's, but one of them gave out on me so i sent them into John for rebuild.

I have two sets in the mail. One is a set that i am having John Holmes rebuild for me. They were origionally HH 45T's, but i'm having him rebuild them as 40T's. The other is a new set of Brood 40T's. I'm gonna try them both out to see which performs better and i'll use the other set for backups.