Ask Paul Lemieux, RC America/MOTIV/Gravity RC
#1862
Hi Paul,
Do you ever find that changing your lower roll center effects your choice of sway bar? IE Raising the lrc you go to a lighter sway bar and vice versa.
Thanks
Do you ever find that changing your lower roll center effects your choice of sway bar? IE Raising the lrc you go to a lighter sway bar and vice versa.
Thanks
#1863
Hi. Not really, it does make sense, i just haven't tuned like that . sometimes i will do that with springs though, say a 2.6 with high front roll center, 2.8 with med front roll center.
#1866
I run 17.5 and am struggling to keep up with our leader. While I will admit he is a slightly better driver than I am, I feel my car is holding me back a bit.
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
#1867
I run 17.5 and am struggling to keep up with our leader. While I will admit he is a slightly better driver than I am, I feel my car is holding me back a bit.
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
Also do you have any video/photo's of the track so we can see the corners you mean?
#1868
Thanks
I run 17.5 and am struggling to keep up with our leader. While I will admit he is a slightly better driver than I am, I feel my car is holding me back a bit.
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
I have a pretty good setup and can post details if needed.
Where I am seeing trouble is a loose rear end on power. The leader can slam the gas out of every corner sooner and keep on the throttle much longer than I can into the sweeper at the end of the straight.
If I gas it out of the corner my car breaks the rear loose about mid corner. Same thing going into the sweeper at the end of the straight.
I am running the longerst wheel base and have a wider front width than the rear. Stiffer dampening up front than rear.
I was thinking of switching to the 2mm chasis to get me a bit more traction but I am unsure if that is the problem or solution.
I am running on carpet, not ozite, but a commercial low nap carpet you would find in an office. I have no basis for traction comparison but I have been told it is high grip. I do know it is higher grip than ozite as a local club uses that and i have been told there is much more grip here than at the club.
It is a very small track, 25x60? I am looking to be able to slam the gas right out of the last turn and hold it through the next turn if possible for a bit longer.
My head says need more rear traction but I am not sure that is the case. Everything I have read so far says high traction needs a stiff chasis which says to me you are tuning in less traction.
So what is happening in my car to break it loose, will a flexi chasis aide in me staying on power longer/sooner?
A set up would be nice to see if you can provide one. To me it sounds like you need more rear traction so you can drive the car harder, here are a couple of things to try. all of these will give you less steering but should allow you to drive the car harder without it getting loose.
Softer front sway bar: normally allows me to drive the car with more consistency.
Shorter front wheelbase: seems to give more on throttle rear grip.
less front camber: easier to drive.
looser rear belt: more on throttle rear grip.
tighter front belt: more on throttle rear grip.
heavy front bumper (Xray hard foam): allows you to drive the car harder.
Good luck
#1871
Good luck!
#1872
Im off to a wedding then to Vegas for the IIC so i will be out for a while. Ill catch up when i get back.
Thanks
Thanks
#1873
#1875
Tech Champion
iTrader: (4)
Hey Paul, It's Adrian from back in the day...lol!
I am starting racing again and I have a T3 2011. I was wondering why most of the setup for the T3's run heavy oil and sometime one hole pistons? All the sedans are so similar now and everyone else runs light oil and 3 hole pistons. Springs seem to be similar between Xray and everyone else.
Do the shocks have a lot of blow by, or are the piston holes big? Just trying to understand.
Good luck at the IIC, always pulling for you bro!
I am starting racing again and I have a T3 2011. I was wondering why most of the setup for the T3's run heavy oil and sometime one hole pistons? All the sedans are so similar now and everyone else runs light oil and 3 hole pistons. Springs seem to be similar between Xray and everyone else.
Do the shocks have a lot of blow by, or are the piston holes big? Just trying to understand.
Good luck at the IIC, always pulling for you bro!