Tamiya mini cooper
#4187
Originally Posted by tamiyarcracer
Much too complicated.
Originally Posted by tamiyarcracer
Have you ever attended a TCS regional event here in the US??
The spirit of TCS is having Fun..
The spirit of TCS is having Fun..
Originally Posted by tamiyarcracer
Seeing as the real prize comes from the national event. and all the regional event does is allow you participate in the national.
Originally Posted by tamiyarcracer
The second question I have, have you ever been commited to being a tech person at an event?.
Scottrik
#4188
I'll be the first "not so expert" to reply:
My understanding of the reason for "Double stuffing" is to get a bit more "gearing" (actually a bit more roll-out). Double stuffing gives you a slightly larger diameter tire, so the roll-out is slightly higher. I haven't done the math, and I doubt it makes this big of a difference, but it may be like running a 21 tooth pinion instead of a 20.
So... there would be no reason to double stuff the free-wheeling rear tires .
Does that make sense?
My understanding of the reason for "Double stuffing" is to get a bit more "gearing" (actually a bit more roll-out). Double stuffing gives you a slightly larger diameter tire, so the roll-out is slightly higher. I haven't done the math, and I doubt it makes this big of a difference, but it may be like running a 21 tooth pinion instead of a 20.
So... there would be no reason to double stuff the free-wheeling rear tires .
Does that make sense?
With the front drive mini, there is a forward weight bias. The 60 D tires have a fairly large sidewall height, and that sidewall is fairly soft, expecially on the S grip radials and A compound slicks. What double stuffing does is give you a full tire, one in which the sidewall will not flex or collapse (fold over) during cornering. Less flex or collapse means that the car will scrub off less speed during corners - keeps the corner speed up. It also will react faster in back to back steering transitions (chicanes).
If you watch a mini in a corner and it seems to snap the back end around unexpectedly, one thing to observe is whether the front tire sidewall is "folding over", digging in the front outside tire in the turn, which causes the inside rear tire to have less weight or even lift, and thus the spin out.
If you have the combination of a front tire folding over and too little shock suspension travel, you get a combination that can lead to snap roll overs in high traction situations like carpet.
The reason I have not found double stuffing the rears to be helpful is that the rear end of a mini is so light compared to the front, this "folding over" effect of the tire sidewall is minimal - thus no need to double stuff the rear tires.
#4190
Actually, I think the double stuffing is not for more rollout.
With the front drive mini, there is a forward weight bias. The 60 D tires have a fairly large sidewall height, and that sidewall is fairly soft, expecially on the S grip radials and A compound slicks. What double stuffing does is give you a full tire, one in which the sidewall will not flex or collapse (fold over) during cornering. Less flex or collapse means that the car will scrub off less speed during corners - keeps the corner speed up. It also will react faster in back to back steering transitions (chicanes).
If you watch a mini in a corner and it seems to snap the back end around unexpectedly, one thing to observe is whether the front tire sidewall is "folding over", digging in the front outside tire in the turn, which causes the inside rear tire to have less weight or even lift, and thus the spin out.
If you have the combination of a front tire folding over and too little shock suspension travel, you get a combination that can lead to snap roll overs in high traction situations like carpet.
The reason I have not found double stuffing the rears to be helpful is that the rear end of a mini is so light compared to the front, this "folding over" effect of the tire sidewall is minimal - thus no need to double stuff the rear tires.
With the front drive mini, there is a forward weight bias. The 60 D tires have a fairly large sidewall height, and that sidewall is fairly soft, expecially on the S grip radials and A compound slicks. What double stuffing does is give you a full tire, one in which the sidewall will not flex or collapse (fold over) during cornering. Less flex or collapse means that the car will scrub off less speed during corners - keeps the corner speed up. It also will react faster in back to back steering transitions (chicanes).
If you watch a mini in a corner and it seems to snap the back end around unexpectedly, one thing to observe is whether the front tire sidewall is "folding over", digging in the front outside tire in the turn, which causes the inside rear tire to have less weight or even lift, and thus the spin out.
If you have the combination of a front tire folding over and too little shock suspension travel, you get a combination that can lead to snap roll overs in high traction situations like carpet.
The reason I have not found double stuffing the rears to be helpful is that the rear end of a mini is so light compared to the front, this "folding over" effect of the tire sidewall is minimal - thus no need to double stuff the rear tires.
#4192
Last time I checked, Mini was no more an 'everyman' class than, say, GT1. That would be 'Spec'.
Therefore, in my mind (and I've been doing this for a little while), the only difference between Mini (or any other closed-endbell class, for that matter) is that the endbell is...closed. That rule is inviolable.
The TCS rules say you can't open that baby up and it has to start as a Mabuchi or Johnson. So once you get away from the trick 20/21/23 turn 'looks like a Mabuchi' cheater motors (and let's face it, those who run them are truly cheating, and cheating themselves), everything else is...legal.
Want to buy a box O' motors and keep the genetic mutants?
Be my guest.
Want to water dip your silver canned wonder in some special prep of chemical condiments?
Right this way.
Feel the need to buy a grand's worth of motor tuning equipment? Please, allow me.
How about high-zoot batteries, speed controls, lightweight servos, Spektrum radio systems, and similar cost-no-object stuff?
May I hold the door for you?
Because at the end of the day, until and unless this becomes another 'Spec' class, it be racing. That means "bring your game".
Having said that, Scottrik is welcome to purchase my mini motor at the end of any TCS regional we both attend and in which he participates. $30- best money you'll ever spend.
Therefore, in my mind (and I've been doing this for a little while), the only difference between Mini (or any other closed-endbell class, for that matter) is that the endbell is...closed. That rule is inviolable.
The TCS rules say you can't open that baby up and it has to start as a Mabuchi or Johnson. So once you get away from the trick 20/21/23 turn 'looks like a Mabuchi' cheater motors (and let's face it, those who run them are truly cheating, and cheating themselves), everything else is...legal.
Want to buy a box O' motors and keep the genetic mutants?
Be my guest.
Want to water dip your silver canned wonder in some special prep of chemical condiments?
Right this way.
Feel the need to buy a grand's worth of motor tuning equipment? Please, allow me.
How about high-zoot batteries, speed controls, lightweight servos, Spektrum radio systems, and similar cost-no-object stuff?
May I hold the door for you?
Because at the end of the day, until and unless this becomes another 'Spec' class, it be racing. That means "bring your game".
Having said that, Scottrik is welcome to purchase my mini motor at the end of any TCS regional we both attend and in which he participates. $30- best money you'll ever spend.
#4194
Last time I checked, Mini was no more an 'everyman' class than, say, GT1. That would be 'Spec'.
Therefore, in my mind (and I've been doing this for a little while), the only difference between Mini (or any other closed-endbell class, for that matter) is that the endbell is...closed. That rule is inviolable.
The TCS rules say you can't open that baby up and it has to start as a Mabuchi or Johnson. So once you get away from the trick 20/21/23 turn 'looks like a Mabuchi' cheater motors (and let's face it, those who run them are truly cheating, and cheating themselves), everything else is...legal.
Want to buy a box O' motors and keep the genetic mutants?
Be my guest.
Want to water dip your silver canned wonder in some special prep of chemical condiments?
Right this way.
Feel the need to buy a grand's worth of motor tuning equipment? Please, allow me.
How about high-zoot batteries, speed controls, lightweight servos, Spektrum radio systems, and similar cost-no-object stuff?
May I hold the door for you?
Because at the end of the day, until and unless this becomes another 'Spec' class, it be racing. That means "bring your game".
Having said that, Scottrik is welcome to purchase my mini motor at the end of any TCS regional we both attend and in which he participates. $30- best money you'll ever spend.
Therefore, in my mind (and I've been doing this for a little while), the only difference between Mini (or any other closed-endbell class, for that matter) is that the endbell is...closed. That rule is inviolable.
The TCS rules say you can't open that baby up and it has to start as a Mabuchi or Johnson. So once you get away from the trick 20/21/23 turn 'looks like a Mabuchi' cheater motors (and let's face it, those who run them are truly cheating, and cheating themselves), everything else is...legal.
Want to buy a box O' motors and keep the genetic mutants?
Be my guest.
Want to water dip your silver canned wonder in some special prep of chemical condiments?
Right this way.
Feel the need to buy a grand's worth of motor tuning equipment? Please, allow me.
How about high-zoot batteries, speed controls, lightweight servos, Spektrum radio systems, and similar cost-no-object stuff?
May I hold the door for you?
Because at the end of the day, until and unless this becomes another 'Spec' class, it be racing. That means "bring your game".
Having said that, Scottrik is welcome to purchase my mini motor at the end of any TCS regional we both attend and in which he participates. $30- best money you'll ever spend.
#4195
Doc, I got $30 for the motor that won the Seattle TCS!
I've only been running a Mini for a little over a year - I bought a used one and lucked in to a really hot motor (compared to the others in my club) - and I will say that while a super fast motor is a big part of the equation, I will also say that it is NOT all of the equation.
Not to brag on being beaten (?!), but I have been outran by cars that I can easily pull on the straight.
It ain't just motors....
Now that being said - can someone pass me some tricks to get more rpm's out of this thing?

#4196
LMAO!
I've only been running a Mini for a little over a year - I bought a used one and lucked in to a really hot motor (compared to the others in my club) - and I will say that while a super fast motor is a big part of the equation, I will also say that it is NOT all of the equation.
Not to brag on being beaten (?!), but I have been outran by cars that I can easily pull on the straight.
It ain't just motors....
Now that being said - can someone pass me some tricks to get more rpm's out of this thing?

I've only been running a Mini for a little over a year - I bought a used one and lucked in to a really hot motor (compared to the others in my club) - and I will say that while a super fast motor is a big part of the equation, I will also say that it is NOT all of the equation.
Not to brag on being beaten (?!), but I have been outran by cars that I can easily pull on the straight.
It ain't just motors....
Now that being said - can someone pass me some tricks to get more rpm's out of this thing?


#4198
#4200
Boomer
Last edited by Big Daddy Boomer; 09-14-2008 at 05:57 PM.



295Likes