1LikesU.S. Vintage Trans-Am Racing
06-21-2011, 02:55 PM
Tech Fanatic
iTrader: (84)
While it may be true that running a higher FDR will "reduce" the impact of low corner speed (or simply not being able to get on the power early enough in the corner, or whatever) by allowing you to punch out of the corner a bit quicker, i think it also slows down the learning curve to becoming a better driver, because you have less reason to learn to negotiate the corner correctly; whereas if you blow a corner repeatedly and see your car lag there every lap, you're more likely to learn to try a different line and get through that corner better.
With that said, you still have to find a balance in having fun while you're learning; and everyones balance will be a bit different.
At my local track, we have a 3.7:1 limit and almost all of us run between 3.7 and 3.8:1. Our straight is 170ft, followed by a shorter 70ft straight followed by another 60ft straight, and the whole thing can be taken flat out in a 25.5 VTA car and treated like a sweeper. On our track, Passing is determined by who takes the better line through a corner, not who has straight ahead punch out of the corner.
With that said, you still have to find a balance in having fun while you're learning; and everyones balance will be a bit different.
At my local track, we have a 3.7:1 limit and almost all of us run between 3.7 and 3.8:1. Our straight is 170ft, followed by a shorter 70ft straight followed by another 60ft straight, and the whole thing can be taken flat out in a 25.5 VTA car and treated like a sweeper. On our track, Passing is determined by who takes the better line through a corner, not who has straight ahead punch out of the corner.
06-21-2011, 07:23 PM
says the guy with the black diamond in his VTA car
06-21-2011, 07:36 PM
The track I was racing on has a 220 ft. straight away that had the last 50 ft or so cut down and turning into a gradual sweeper. It is exactly the type of track where a very low (3.6:1 or so) gear ratio should work to your advantage. But I've been able to stay in front of most of the field running between 3:96 - 4:12. On shorter parking lot tracks with straights around 100 ft., I do very well between 4:12 - 4:20 which is expected on a shorter track with more turns. That's why I just don't get it when guys come on here talking about their 3.8 gear ratios. If you think about it, most passing is done while exiting a corner. Very little ever happens in the straight away. Full scale road coarse racers tend to care less about top end than they do mid range power. It's the same situation. Gearing a car at 3.6:1 is like driving around in 5th gear all the time. Any sport bike riders out there? When is the last time you took a corner in 5th or 6th gear? You hear your engine knock and struggle for more power, so you down shift. With our single speed transmissions, we have to make a choice. Brushless motors provide a ton of torque throughout the RPM range, but the effects of gearing too tall are still there.
Eric
Midwest Grandslam VTA Champion 2011
06-21-2011, 08:10 PM
I have my car generally geared around 3.6-3.8, sometimes as low as 3.4. Although I am rarely ever off the throttle. I do see your point though being in the 3.9 - 4.2 range. It all depends on your driving style. I was able to hold off Jimmy once in Indy, just barely.
Eric
Midwest Grandslam VTA Champion 2011
Eric
Midwest Grandslam VTA Champion 2011
. Good times. A good example of two cars setup different, but running nose to tail for 6 minutes ( dam jet lag lol).
06-23-2011, 05:52 PM
2010 Champ, 2011 Champ....I wonder who will be the .....coming sooner than later....
THUNDER RC
Presents
2011 USVTA Southern Nationals in Music City USA
DATE:
Sept 23-25th, 2011
PLACE:
Thunder RC Raceway 810 Cherokee Ave Nashville, TN 37207
TROPHY:
1ST-5TH Amain 1st in lower mains and TQ
RULES:
FULL USVTA AND USGT
http://www.usvintagetransam.com/rules/index.html
ENTRY:
$30 first class, $15 second class
CLASSES:
____VTA
____USGT
____BONUS CLASS: 17.5 ROAR STOCK SPEC TC on JACO BLUES, 1ST-3RD TROPHY ,$25 ENTRY
Web info: http://www.thunderrcraceway.com/
Prizes:concourse & random door drawing
Sponsors:KRC,HPI,NOVAK,NASHRCREACER.COM,RISK SCIENCES
pre-register by August 28 and receive a FREE gift
Name_______________________________Nickname_______ ______________________
Address________________________________ City, State,
Zip_______________________
Phone________________________Email________________ _______________________
Transponder#1_____________________#2______________ ______#3_______________
Total Classes and amount: #________________________$________________________ _
SEND ENTRY TO: KRC, PO BOX 70779 NASHVILLE, TN 37207
THUNDER RC
Presents
2011 USVTA Southern Nationals in Music City USA
DATE:
Sept 23-25th, 2011
PLACE:
Thunder RC Raceway 810 Cherokee Ave Nashville, TN 37207
TROPHY:
1ST-5TH Amain 1st in lower mains and TQ
RULES:
FULL USVTA AND USGT
http://www.usvintagetransam.com/rules/index.html
ENTRY:
$30 first class, $15 second class
CLASSES:
____VTA
____USGT
____BONUS CLASS: 17.5 ROAR STOCK SPEC TC on JACO BLUES, 1ST-3RD TROPHY ,$25 ENTRY
Web info: http://www.thunderrcraceway.com/
Prizes:concourse & random door drawing
Sponsors:KRC,HPI,NOVAK,NASHRCREACER.COM,RISK SCIENCES
pre-register by August 28 and receive a FREE gift
Name_______________________________Nickname_______ ______________________
Address________________________________ City, State,
Zip_______________________
Phone________________________Email________________ _______________________
Transponder#1_____________________#2______________ ______#3_______________
Total Classes and amount: #________________________$________________________ _
SEND ENTRY TO: KRC, PO BOX 70779 NASHVILLE, TN 37207
06-23-2011, 07:44 PM
Tech Fanatic
2010 Champ, 2011 Champ....I wonder who will be the .....coming sooner than later....
THUNDER RC
Presents
2011 USVTA Southern Nationals in Music City USA
DATE:
Sept 23-25th, 2011
PLACE:
Thunder RC Raceway 810 Cherokee Ave Nashville, TN 37207
TROPHY:
1ST-5TH Amain 1st in lower mains and TQ
RULES:
FULL USVTA AND USGT
http://www.usvintagetransam.com/rules/index.html
ENTRY:
$30 first class, $15 second class
CLASSES:
____VTA
____USGT
____BONUS CLASS: 17.5 ROAR STOCK SPEC TC on JACO BLUES, 1ST-3RD TROPHY ,$25 ENTRY
Web info: http://www.thunderrcraceway.com/
Prizes:concourse & random door drawing
Sponsors:KRC,HPI,NOVAK,NASHRCREACER.COM,RISK SCIENCES
pre-register by August 28 and receive a FREE gift
Name_______________________________Nickname_______ ______________________
Address________________________________ City, State,
Zip_______________________
Phone________________________Email________________ _______________________
Transponder#1_____________________#2______________ ______#3_______________
Total Classes and amount: #________________________$________________________ _
SEND ENTRY TO: KRC, PO BOX 70779 NASHVILLE, TN 37207
THUNDER RC
Presents
2011 USVTA Southern Nationals in Music City USA
DATE:
Sept 23-25th, 2011
PLACE:
Thunder RC Raceway 810 Cherokee Ave Nashville, TN 37207
TROPHY:
1ST-5TH Amain 1st in lower mains and TQ
RULES:
FULL USVTA AND USGT
http://www.usvintagetransam.com/rules/index.html
ENTRY:
$30 first class, $15 second class
CLASSES:
____VTA
____USGT
____BONUS CLASS: 17.5 ROAR STOCK SPEC TC on JACO BLUES, 1ST-3RD TROPHY ,$25 ENTRY
Web info: http://www.thunderrcraceway.com/
Prizes:concourse & random door drawing
Sponsors:KRC,HPI,NOVAK,NASHRCREACER.COM,RISK SCIENCES
pre-register by August 28 and receive a FREE gift
Name_______________________________Nickname_______ ______________________
Address________________________________ City, State,
Zip_______________________
Phone________________________Email________________ _______________________
Transponder#1_____________________#2______________ ______#3_______________
Total Classes and amount: #________________________$________________________ _
SEND ENTRY TO: KRC, PO BOX 70779 NASHVILLE, TN 37207
06-24-2011, 10:22 AM
Tech Fanatic
06-25-2011, 07:12 AM
Novak Mongoose
You guys that are running or have tested the Novak Mongoose. I have a few questions.
How hot does it get especially when you do a lot of braking or reversing?
Does it get hotter with very low (3.8:1) FDR?
I'm thinking of a scenario where I run one in my Tamiya Mini with the silver can 540 and eventually a 25.5 or 21.5 brushless. The gearing is basically fixed at 5.8:1 FDR, so I can't get too crazy there. Novak intends these for 380 sized motors, but the small size and efficiency makes it tempting to look for other uses, just as in VTA.
How hot does it get especially when you do a lot of braking or reversing?
Does it get hotter with very low (3.8:1) FDR?
I'm thinking of a scenario where I run one in my Tamiya Mini with the silver can 540 and eventually a 25.5 or 21.5 brushless. The gearing is basically fixed at 5.8:1 FDR, so I can't get too crazy there. Novak intends these for 380 sized motors, but the small size and efficiency makes it tempting to look for other uses, just as in VTA.
