52LikesTeam Losi JRXS Type-R
09-16-2009, 06:30 PM
09-16-2009, 07:21 PM
1 Reason may be during the season last year there was a batch of pullies that were shipped as 42T and were actually 41T,since packing has been fixed.
Some may just be converting back. Like Cory said 41T in front will really help car drive hard on power thru the entire corner. I know I have been running the 41T on front spool for 2 years now and Schreff and Larry also have with great results while they ran there Type-R's.
Some may just be converting back. Like Cory said 41T in front will really help car drive hard on power thru the entire corner. I know I have been running the 41T on front spool for 2 years now and Schreff and Larry also have with great results while they ran there Type-R's.
09-16-2009, 07:44 PM
isnt that the other way around? tight tracks with hair pins needs a spool and nice wide open track needs a oneway.
09-16-2009, 07:51 PM
09-16-2009, 09:20 PM
da John ..you may be right about the spool when we get some grip into the new layout.
09-16-2009, 09:44 PM
LOL, I heard that. I spent two race day chasing set up for a "green" track. All the non losi drivers use corally, t.o.p. cars and we we going opposite in spring rates. I was going up and they were going down. Weird that this car likes more spring when there is less traction.
da John ..you may be right about the spool when we get some grip into the new layout.
da John ..you may be right about the spool when we get some grip into the new layout.
09-17-2009, 06:46 AM
not only a spring, the sway bars too, lots of opposite effects I monitered from this car, only thing I can think of it is cuz most of weight trasfer from center to inside of the tires instead of like most other cars weight transfer from out side of the chassis to outside edge of the tire.
09-17-2009, 07:53 AM
LOL, I heard that. I spent two race day chasing set up for a "green" track. All the non losi drivers use corally, t.o.p. cars and we we going opposite in spring rates. I was going up and they were going down. Weird that this car likes more spring when there is less traction.
And talk about short arms, I had the orginal JRXS and MYGOSH those arms were short. The setup window was smaller than the cash slot at a 7eleven register in midtown Philly.
09-17-2009, 08:10 AM
I dont know, I feel backwards many time on this car..come to think of it....I think I only felt that way on carpets...hmmmm
Last edited by SweepRacingUSA; 09-17-2009 at 09:48 AM.
09-17-2009, 10:00 AM
I don't think the car works backwards. Sometimes people will say stuff works backwards because they they do something and the car didn't do as they expected but in reality they misdiagnosed the problem from the very beginning.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
09-17-2009, 01:55 PM
I don't think the car works backwards. Sometimes people will say stuff works backwards because they they do something and the car didn't do as they expected but in reality they misdiagnosed the problem from the very beginning.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
09-17-2009, 02:06 PM
I don't think the car works backwards. Sometimes people will say stuff works backwards because they they do something and the car didn't do as they expected but in reality they misdiagnosed the problem from the very beginning.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
I have run many different cars and have helped to setup many others. I have always found that all but one car (or should I say brand) responds to setup changes in a normal fashion and if it seems like it hasn't it it more than likely you have another problem masking the change. the JRX-S type R responds perfectly and predictably to setup change.
09-17-2009, 10:02 PM
I don't think the car works backwards. Sometimes people will say stuff works backwards because they they do something and the car didn't do as they expected but in reality they misdiagnosed the problem from the very beginning.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
Nice post... From my exp most people don't truly understand what is wrong with their car when they are trying to fix or improve the setup. Most people I talk to only look at grip and don't have any knowledge about response and its realation to grip. I have seen some very funny setups even from top drivers that don't understand.
I have run many different cars and have helped to setup many others. I have always found that all but one car (or should I say brand) responds to setup changes in a normal fashion and if it seems like it hasn't it it more than likely you have another problem masking the change. the JRX-S type R responds perfectly and predictably to setup change.
I have run many different cars and have helped to setup many others. I have always found that all but one car (or should I say brand) responds to setup changes in a normal fashion and if it seems like it hasn't it it more than likely you have another problem masking the change. the JRX-S type R responds perfectly and predictably to setup change.
You guys are right about the finding the right combination of reactivity and traction. It's fun learning this stuff and it's still ongoing for me.
09-17-2009, 10:09 PM
I don't think the car works backwards. Sometimes people will say stuff works backwards because they they do something and the car didn't do as they expected but in reality they misdiagnosed the problem from the very beginning.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
For example, there are a series of corners at the local track the car will want to roll onto the front in the mid corner. People was wanting to get more steering so they was softening the front as you should but what they didn't take into account was how much car was dumping and rolling. To the point that the cars was bottoming out. As soon as the car bottomed out it in effect was running a rock hard suspension which equals no steering. I told them to go stiffen it up a bit to prevent the dumping out and instantly they gained the steering they needed.
There a usable range for all settings however differences in driving style, conditions and other factors prevents us from making blanket statements of what those ranges are. One could say that you will never use a 10lb spring on the front but then we will find a track and conditions where that would be useful and nullify the statement.
09-17-2009, 10:11 PM
This car has some interesting dynamics as far as lateral loading in corners with respect to the center of gravity. The car stays flatter to begin with than any other chassis I've ever driven. It transfers weight differently. It almost feels like when it loads to the side, instead of pushing heavily, it catches traction and balances itself really quickly. Other cars roll, stay loaded to one side, then rock back when the load goes away or they traction roll.