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Old 01-25-2005, 06:02 PM   #301
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Quote:
Originally posted by nmt6789
Why doesnt HPI make a 1/12?? Hara is good at taping his batteries in....
Because there is more money to be made with sedan cars... for the moment. If the interest in 1/12 continues to grow, HPI will be back in the mix along with others.

1/12th. The Formula One of RC car racing!!
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Old 01-25-2005, 07:01 PM   #302
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so on these pan cars the whole rear of the car can bend or swing? why is it nessisary for these cars to do it and not say a 1/10th scale touring car?
and whats the bracket look piece on top of the servo?

Last edited by kh15; 01-25-2005 at 08:43 PM.
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Old 01-25-2005, 11:45 PM   #303
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Originally posted by kh15
so on these pan cars the whole rear of the car can bend or swing? why is it nessisary for these cars to do it and not say a 1/10th scale touring car?
and whats the bracket look piece on top of the servo?
Touring cars have independent suspension meaning all four wheels can move independently of each other. That's one of the reasons why touring cars are so heavy. Pan cars, specifically in the rear, work more like live axle cars. Pan cars are designed to work with minimal suspension travel. This also keeps them light and simple and very effective. While they are at their best when in high grip conditions (carpet) they can also be made to work quite well in lower grip conditions (asphalt). All things being equal, motor, conditions, driver skill, a pan car will turn in faster lap times than a comparable equipped touring car.

Oh, and the bracket on top of the steering servo on Hara's car... that is a lap counting system transponder holder.
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Old 01-26-2005, 04:56 AM   #304
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Quote:
Originally posted by kh15
so on these pan cars the whole rear of the car can bend or swing? why is it nessisary for these cars to do it and not say a 1/10th scale touring car?
and whats the bracket look piece on top of the servo?
That's A transponder holder
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Old 01-26-2005, 04:58 AM   #305
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Quote:
Originally posted by Crashby

1/12th. The Formula One of RC car racing!!
Isn't 1:8 nitro the Formula 1 of RC racing?!
Though, I prefer electric 1:12 scale also!
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Old 01-26-2005, 11:53 AM   #306
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Originally posted by Tekin
Isn't 1:8 nitro the Formula 1 of RC racing?!
Though, I prefer electric 1:12 scale also!
Yeah. I probably should have said, "the Formula One of Electric." My bad.
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Old 01-30-2005, 03:21 PM   #307
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well i had alittle set back today at the track The car didnt really perform well for me today. I must have got the setup all wrong. I need some help with the setup, does anyone have a carpet setup for the hara? You can either post it or pm please.

The rear pod just seems alittle sloppy and i even thread locked the screws underneath and it seemed alittle sloppy still. I decided to mount my servo to the chassis since the servo ears broke off . The first time i used the lay down servo it was fine, and then gradually it got worse. I am just doing something wrong.

Batteries arent a problem, i dont believe motor is a problem, I pretty much got the roll out good. Its the rear pod, and front end, foams i believe. I might be wrong. Everytime i make a left turn (180 degree) the rear end slips and hit the wall. Making right turns are fine.

Overall today i just wasnt happy with the car, hopefully i can get it straightened out.

Thanks

Jon

I will update with anymore information.
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Old 01-30-2005, 04:14 PM   #308
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Quote:
Originally posted by JDXray
well i had alittle set back today at the track The car didnt really perform well for me today. I must have got the setup all wrong. I need some help with the setup, does anyone have a carpet setup for the hara? You can either post it or pm please.

The rear pod just seems alittle sloppy and i even thread locked the screws underneath and it seemed alittle sloppy still. I decided to mount my servo to the chassis since the servo ears broke off . The first time i used the lay down servo it was fine, and then gradually it got worse. I am just doing something wrong.

Batteries arent a problem, i dont believe motor is a problem, I pretty much got the roll out good. Its the rear pod, and front end, foams i believe. I might be wrong. Everytime i make a left turn (180 degree) the rear end slips and hit the wall. Making right turns are fine.

Overall today i just wasnt happy with the car, hopefully i can get it straightened out.

Thanks

Jon

I will update with anymore information.
I think the suspension is just fine, because you said the right turns are going well, I think it's more A set-up problem.

Can't you order a new case for the servo?
That shouldn't cost much, and it's easy to replace.

I've never drove a Hammer, but the problem you have can have many sources.
Have you tried to putt it on a tweakboard?
Maybe that will help, so you can see (very accurate) if your chassis is tweaked.
And try to figure out if the pressure on the tires are the same (left and right).

Another thing could be the tires, what kind of tires and traction compound do you use?
And how did you covered the tires with traction compound, full, inside, outside?

Maybe it's the track, do more people have that problem on the track where you drove?
And is it every 180 degree left turn, or is it only a low or high speed turn?

You can also ask it in the 1:12 thread,
Here's the link: http://www.rctech.net/forum/showthre...s=&threadid=37

I hope you can anwser some of these questions so I can help you A bit more...
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Old 01-30-2005, 07:55 PM   #309
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Quote:
Originally posted by Tekin
I think the suspension is just fine, because you said the right turns are going well, I think it's more A set-up problem.

Can't you order a new case for the servo?
That shouldn't cost much, and it's easy to replace.

I've never drove a Hammer, but the problem you have can have many sources.
Have you tried to putt it on a tweakboard?
Maybe that will help, so you can see (very accurate) if your chassis is tweaked.
And try to figure out if the pressure on the tires are the same (left and right).

Another thing could be the tires, what kind of tires and traction compound do you use?
And how did you covered the tires with traction compound, full, inside, outside?

Maybe it's the track, do more people have that problem on the track where you drove?
And is it every 180 degree left turn, or is it only a low or high speed turn?

You can also ask it in the 1:12 thread,
Here's the link: http://www.rctech.net/forum/showthre...s=&threadid=37

I hope you can anwser some of these questions so I can help you A bit more...
Thanks for the help. I did put my car on a niftech tweak station and after playing around alittle i got it centered, and i thought it would be good, but it wasnt .

My LHS has the servo case for like 10 bucks i think, i guess i can pick one up and mount it back onto some servo mounts. I want to try those plastic ones that i see everyone use.

I dont think alot of people at my track are having that problem at that turn. They seem to take it alot smoother and quicker.

Does anyone have a Hara Setup for carpet they would share with me? (I can also list my setup and you guys can tell me whats wrong with it.)

Jon
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Old 01-31-2005, 02:15 AM   #310
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What about your M8 controller? Are you using Steering Exp? Check you steering EPA as well.
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Old 01-31-2005, 04:57 AM   #311
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Quote:
Originally posted by revzalot
What about your M8 controller? Are you using Steering Exp? Check you steering EPA as well.
Never thought of that, but i dont think thats the problem.

L60
R60

ST EXP-0%

Is the exp supposed to be different?
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Old 01-31-2005, 05:32 AM   #312
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JDXray, did you check the droop in the front end? When you pick up the car and push up on the tire, is there alot of slop in the king pin before the spring touches the bottom arm? Check all the plastic holders in the back to make sure the rear end moves around freely but not too freely?
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Old 01-31-2005, 11:35 AM   #313
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Quote:
Originally posted by JDXray
Never thought of that, but i dont think thats the problem.

L60
R60

ST EXP-0%

Is the exp supposed to be different?
Higher EXP will increase steering throw meaning steering speed will increase expotentially over time. Your M8 setup is fine.
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Old 01-31-2005, 12:18 PM   #314
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Quote:
Originally posted by JDXray
well i had alittle set back today at the track The car didnt really perform well for me today. I must have got the setup all wrong. I need some help with the setup, does anyone have a carpet setup for the hara? You can either post it or pm please.

The rear pod just seems alittle sloppy and i even thread locked the screws underneath and it seemed alittle sloppy still. I decided to mount my servo to the chassis since the servo ears broke off . The first time i used the lay down servo it was fine, and then gradually it got worse. I am just doing something wrong.

Batteries arent a problem, i dont believe motor is a problem, I pretty much got the roll out good. Its the rear pod, and front end, foams i believe. I might be wrong. Everytime i make a left turn (180 degree) the rear end slips and hit the wall. Making right turns are fine.

Overall today i just wasnt happy with the car, hopefully i can get it straightened out.

Thanks

Jon

I will update with anymore information.
I think you have posted in the past that the car was real good so something has changed. Without knowing what your current set up is and what front end you are using here are some things to check.

It sounds to me like it is a tweak issue if it turns fine in one direction but not the other.
First make sure that all of your tires are of equal diameter. Meaning that both the rears match and both the fronts match. Next find the center point on the front of the chassis and mark it either with a small hole or file a notch on the edge of the chassis at the center point. With the car on a flat, level surface, get down where you can site along the bottom of the chassis and very slowly lift the front of the chassis at the center mark with a Xacto knife or something similar. What you are going to be looking for is if the suspension moves before the wheel comes off of the surface they are resting on. Next look to see if one side of the suspension is lifting before the other side. If you have that condition, remedy that by adding shims on the king pins until there is either no play or they at least lift at the same time. Then put your car on the tweak station and reset the tweak.

Also if you have a chuck of the tire missing from the outside edge of a rear tire, the car will over steer to the side that that has the chunked tire.

If you are using the Associated Dynamic Strut front end then you should have your steering servo mounted at an angle. If you are using the old style Associated front end then you can mount your steering servo flat on the chassis.
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Old 01-31-2005, 02:37 PM   #315
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Quote:
Originally posted by Crashby
I think you have posted in the past that the car was real good so something has changed. Without knowing what your current set up is and what front end you are using here are some things to check.

It sounds to me like it is a tweak issue if it turns fine in one direction but not the other.
First make sure that all of your tires are of equal diameter. Meaning that both the rears match and both the fronts match. Next find the center point on the front of the chassis and mark it either with a small hole or file a notch on the edge of the chassis at the center point. With the car on a flat, level surface, get down where you can site along the bottom of the chassis and very slowly lift the front of the chassis at the center mark with a Xacto knife or something similar. What you are going to be looking for is if the suspension moves before the wheel comes off of the surface they are resting on. Next look to see if one side of the suspension is lifting before the other side. If you have that condition, remedy that by adding shims on the king pins until there is either no play or they at least lift at the same time. Then put your car on the tweak station and reset the tweak.

Also if you have a chuck of the tire missing from the outside edge of a rear tire, the car will over steer to the side that that has the chunked tire.

If you are using the Associated Dynamic Strut front end then you should have your steering servo mounted at an angle. If you are using the old style Associated front end then you can mount your steering servo flat on the chassis.
Thanks for your replies.

If it is the tweak, than it is really hard to set the tweak on this car. I put it on the niftech tweak station several times and after playing around alittle the tweak station said it was correct. BUt i guess i have to go to the old style of putting it on the table or 2 coin trick.

I will try look at the frontend and foams. I will put a brand new set on. As for chunks, no chunks on the outside of any wheel, besides the left front one as alittle chunk in the middle which i thought didnt make a difference. But like i said before i will put a brand new set on and try that.

One thing, you said to have the tire size the same?? I thought there supposed to be alittle bigger in the rear???

And as for the frontend i am using the Associated L4 (Dynamic Strut i presume?) And i guess i will have to get a new servo case and mount the servo on a servo mount.

Thanks for the help, it really is helping and i am sure it will improve.

Jon
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