1LikesU.S. Vintage Trans-Am Racing
09-16-2010, 08:51 AM
#9181
Are these racers concerned about buying a 25.5T motor; we allow customers returning 21.5s to replace them with 25.5s for 46.00. You can also upgrade a SS Pro 21.5 to a Ballistic 25.5, which may be a better solution for racers wanting to compete in spec events requiring different winds (by installing the other stator.)
All of our BL escs are designed for optimum performance with the 30 degree factory timing in our motors. All of the BL motors that we have (ever) made have been set at this 30 degree timing mark; we do not recommend changing it. Once changed, there is no way for a user to re-set it to 30 degrees---it would have to be returned to us. Replacing a rotor or wound stator also changes the factory timing slightly.
All of our BL escs are designed for optimum performance with the 30 degree factory timing in our motors. All of the BL motors that we have (ever) made have been set at this 30 degree timing mark; we do not recommend changing it. Once changed, there is no way for a user to re-set it to 30 degrees---it would have to be returned to us. Replacing a rotor or wound stator also changes the factory timing slightly.
09-16-2010, 04:06 PM
#9182
I'm hoping that this is not a problem at my track. I'm making it a FDR rule for both motors with the understanding that the 21.5 would be slightly slower then the 25.5
21.5 kv rating 1800 25.5 kv rating 1550
tire dia PI fdr kv volts avg " per minute " hour " per ' ' per mile MPH
2.6 x 3.141592 / 4.8 / 1800 x 8 = 24504.4176 x 60 / 12 / 5280 = 23.20494
2.6 x 3.141592 / 4.0 / 1500 x 8 = 24504.4176 x 60 / 12 / 5280 = 23.20494
so if you make the 21.5 4.9 fdr then they should be slower for the class and give the new tech the advantage. people need to have the understanding that this allows them to run without having to buy new equipment and still allows those that play by the new rules to have the slight advantage.
21.5 kv rating 1800 25.5 kv rating 1550
tire dia PI fdr kv volts avg " per minute " hour " per ' ' per mile MPH
2.6 x 3.141592 / 4.8 / 1800 x 8 = 24504.4176 x 60 / 12 / 5280 = 23.20494
2.6 x 3.141592 / 4.0 / 1500 x 8 = 24504.4176 x 60 / 12 / 5280 = 23.20494
so if you make the 21.5 4.9 fdr then they should be slower for the class and give the new tech the advantage. people need to have the understanding that this allows them to run without having to buy new equipment and still allows those that play by the new rules to have the slight advantage.
09-16-2010, 06:22 PM
#9185
some of us are still using the 21.5 untill the out door season is over. Yes I am buying a slower motor for next season.. 
09-16-2010, 07:17 PM
#9186
one of the guys that came up with the had it figured at 7.95 when the 21.5 was 4.2 but with 27t motors you have difference in a rpm vs torque blank. like the roar stock has more rpm and the co27 has more torque just figure out how many rpm it turns at 8 volts and back track that in the equation. it's harder to find that happy medium in that range of the design being brushed as a real good prepped 27t will beat a 17.5 with no speedo timing. I would say start in the 9.0fdr yes way the fit up there. and that should be about right.
09-17-2010, 04:40 AM
#9187
one of the guys that came up with the had it figured at 7.95 when the 21.5 was 4.2 but with 27t motors you have difference in a rpm vs torque blank. like the roar stock has more rpm and the co27 has more torque just figure out how many rpm it turns at 8 volts and back track that in the equation. it's harder to find that happy medium in that range of the design being brushed as a real good prepped 27t will beat a 17.5 with no speedo timing. I would say start in the 9.0fdr yes way the fit up there. and that should be about right.
Has anyone actually tested a 21.5 against a 25.5 with the recommended FRD's? I ran VTA last year with a 21.5. We allowed timing but no boost. I was using 30 degrees of timing and was geared at about 5.1. I was surprised to see that with no timing, I need to gear it up to 4.9 to equal a 25.5 at 4.0. If this holds true, the 25.5 should be faster than I thought it would be as I thought my 21.5 at 5.1 was pretty quick.
We have adopted these rules for this season.
09-19-2010, 10:08 AM
#9188
3rd Annual Music City Championsip - Sunday, Sept. 26, 2010
START YOUR CHARGERS!!!!!...time to get that last minute preparations together for one of the largest VTA(with TC/RCGT) races for the last 2 years..the 3rd Annual Music City Championsip - Sunday, Sept. 26, 2010 (MCC#3)...
We are very hyped about this years race with a change in the race format and all the new local on-road racers coming to this event. I believe we have a chance at beating last year and year before entries by a good margin.
Here is the short of the event:
Race is next Sunday Sept 26th
Track and pits open at 8am
Registration between 9-10am
Paint contest at 10:30am
Drivers meeting at 10:45am
Race #1 at 11am
Best 5 out of 6 scoring
BBQ and drinks for all paid entries
Entry fee is still just $15....bring the Family and get lunch for $5 per person
Trophies 1st-10th in each class
Local and National sponsors are giving away prizes.
The BEST trophys anywhere.
Im looking forward to seeing alot of support from my local VTA and TC racers as well as some of the out of town guys Ive raced with over the last couple of years.
Also I would like to thank Tim Moore for putting this event together for the 3rd year as well as all the other things here does for our r/c family.
Thanks Tim
you can see the trophies and pics from last year here...
http://www.hpiracing.com/news/2009090301/
We are very hyped about this years race with a change in the race format and all the new local on-road racers coming to this event. I believe we have a chance at beating last year and year before entries by a good margin.
Here is the short of the event:
Race is next Sunday Sept 26th
Track and pits open at 8am
Registration between 9-10am
Paint contest at 10:30am
Drivers meeting at 10:45am
Race #1 at 11am
Best 5 out of 6 scoring
BBQ and drinks for all paid entries
Entry fee is still just $15....bring the Family and get lunch for $5 per person
Trophies 1st-10th in each class
Local and National sponsors are giving away prizes.
The BEST trophys anywhere.
Im looking forward to seeing alot of support from my local VTA and TC racers as well as some of the out of town guys Ive raced with over the last couple of years.
Also I would like to thank Tim Moore for putting this event together for the 3rd year as well as all the other things here does for our r/c family.
Thanks Tim
you can see the trophies and pics from last year here...
http://www.hpiracing.com/news/2009090301/
09-20-2010, 10:13 AM
#9189
If you want to condense this, I can post it on Facebook; if you already "like" TeamNovak, you could post it on our FB page yourself.....
TeamNovak Facebook
On Sept 8th, I posted other upcoming USVTA races.
TeamNovak Facebook
On Sept 8th, I posted other upcoming USVTA races.
START YOUR CHARGERS!!!!!...time to get that last minute preparations together for one of the largest VTA(with TC/RCGT) races for the last 2 years..the 3rd Annual Music City Championsip - Sunday, Sept. 26, 2010 (MCC#3)...
We are very hyped about this years race with a change in the race format and all the new local on-road racers coming to this event. I believe we have a chance at beating last year and year before entries by a good margin.
Here is the short of the event:
Race is next Sunday Sept 26th
Track and pits open at 8am
Registration between 9-10am
Paint contest at 10:30am
Drivers meeting at 10:45am
Race #1 at 11am
Best 5 out of 6 scoring
BBQ and drinks for all paid entries
Entry fee is still just $15....bring the Family and get lunch for $5 per person
Trophies 1st-10th in each class
Local and National sponsors are giving away prizes.
The BEST trophys anywhere.
Im looking forward to seeing alot of support from my local VTA and TC racers as well as some of the out of town guys Ive raced with over the last couple of years.
Also I would like to thank Tim Moore for putting this event together for the 3rd year as well as all the other things here does for our r/c family.
Thanks Tim
you can see the trophies and pics from last year here...
http://www.hpiracing.com/news/2009090301/
We are very hyped about this years race with a change in the race format and all the new local on-road racers coming to this event. I believe we have a chance at beating last year and year before entries by a good margin.
Here is the short of the event:
Race is next Sunday Sept 26th
Track and pits open at 8am
Registration between 9-10am
Paint contest at 10:30am
Drivers meeting at 10:45am
Race #1 at 11am
Best 5 out of 6 scoring
BBQ and drinks for all paid entries
Entry fee is still just $15....bring the Family and get lunch for $5 per person
Trophies 1st-10th in each class
Local and National sponsors are giving away prizes.
The BEST trophys anywhere.
Im looking forward to seeing alot of support from my local VTA and TC racers as well as some of the out of town guys Ive raced with over the last couple of years.
Also I would like to thank Tim Moore for putting this event together for the 3rd year as well as all the other things here does for our r/c family.
Thanks Tim
you can see the trophies and pics from last year here...
http://www.hpiracing.com/news/2009090301/
09-20-2010, 11:37 AM
#9190
We have re-linked our USVTA page to our TeamNovak home page for those who may not have seen it earlier this year when we designed the program:
TeamNovak and US Vintage Trans-Am
We also placed the dealer information in a box on the left so that it is easier to locate.
TeamNovak and US Vintage Trans-Am
We also placed the dealer information in a box on the left so that it is easier to locate.
09-22-2010, 10:05 PM
#9191
A few pages back someone asked about FDR with a TC3. Under the current rules, the easiest way to get max FDR of 4.2 using a TC3 or TC4 is to go with an 84 spur & 50 pinion.
84/50 (1.68) x 2.5 (Gearbox ratio of TC3/TC4) = 4.2 FDR
You will have to dremel out the area below the pinion on the TC3 tub chassis if you want to use a pinion larger than 47.
84/50 (1.68) x 2.5 (Gearbox ratio of TC3/TC4) = 4.2 FDR
You will have to dremel out the area below the pinion on the TC3 tub chassis if you want to use a pinion larger than 47.
09-23-2010, 04:15 AM
#9192
Weight.
I'm using a Tamiya TA-05 v2. It has some bits on it to reduce weight but it's still a bathtub chassis that's built like a tank. The only carbon fiber part on it is the rear shock tower. I put it on the scale at the track last night and it was way lighter than the 1550 limit. With a 4200ma lipo, I was around 1420mg. If I'm this much below the limit, I can only imagine what the carbon fiber chassis cars will be. I noticed that ROAR publishes rules for VTA and their weight limit is 1450. I'm thinking that as much as I hate to stray from the USVTA rules, that we will go with the ROAR limit at our track. I'd like to know what others are doing at their track.
09-23-2010, 04:21 AM
#9193
I'm using a Tamiya TA-05 v2. It has some bits on it to reduce weight but it's still a bathtub chassis that's built like a tank. The only carbon fiber part on it is the rear shock tower. I put it on the scale at the track last night and it was way lighter than the 1550 limit. With a 4200ma lipo, I was around 1420mg. If I'm this much below the limit, I can only imagine what the carbon fiber chassis cars will be. I noticed that ROAR publishes rules for VTA and their weight limit is 1450. I'm thinking that as much as I hate to stray from the USVTA rules, that we will go with the ROAR limit at our track. I'd like to know what others are doing at their track.
go back to all the stock parts on your TA05 and see how close you are - also, a 5000 pack will put you a littl more closer as wel
09-23-2010, 06:51 AM
#9195
I'm using a Tamiya TA-05 v2. It has some bits on it to reduce weight but it's still a bathtub chassis that's built like a tank. The only carbon fiber part on it is the rear shock tower. I put it on the scale at the track last night and it was way lighter than the 1550 limit. With a 4200ma lipo, I was around 1420mg. If I'm this much below the limit, I can only imagine what the carbon fiber chassis cars will be. I noticed that ROAR publishes rules for VTA and their weight limit is 1450. I'm thinking that as much as I hate to stray from the USVTA rules, that we will go with the ROAR limit at our track. I'd like to know what others are doing at their track.
Keep in mind, ROAR comes second for this class. As a governing body for RC racing, they added the class to their rules set. USVTA rules existed before this adoption. ROAR will not spec a motor or ESC either as that shows brand favoritism, which they as a governing body can not do. The ROAR rules are updated too slowly and have not taken into account this years VTA rules changes. Stick with the current series rules.
