swtour
06-12-2007, 02:49 AM
...The saga of the 17.5 continued this past weekend...
Saturday June 9th - Metro R/C Speedway - JOSH SMITH running the 17.5 w/ the 3200 Carbon Lipo, once again a very strong showing against some heavy hitters in the 4300/4 cell class. I believe Josh finished 2nd in the main, but more impressive was still the fact that this motor competes are virtually the EXACT same level as the 10.5 on 4 cell....
I'm sure if Josh or Don reads this they will chime on on setup and/or other info.
Sunday June 10th - Racers Haven R/C Raceway - I had some spare time on my hands just running one class, I decided I'd try running the same motor Josh ran on Saturday...on Sunday with just 4 cells.
That race had a small 'sportsman stock' class, and I've been promising to give this motor a try as a STOCK type B/L replacement because a lot of guys have found the 13.5 motor a bit faster than their liking.
The plan was to run one qualifier and the main, since I didn't so any practice or any other running...the heat should let me know how close my calculations were going to be on the gear. Well dummy me, got the main order screwed up and missed the main so I was only able to get one run in...
The cool part was the days TQ ran a 62/5:02.50 in the previous round - so that was the target I was aiming at. I ended up running a 61/5:05.29, and some how..and for some reason (uh, cause the battery I ran had just run the 4300 class 10 minutes before and didn't have a full charge) was dumping at the 5 minute mark.
In 2 days of racing, I ran 2 packs of 4200's at least 10 - 12 times each. By the time I ran this 17.5 motor this battery pack had run 5 times that day in about a 4 hour period...in 95+ degree weather.
The TQ guys times in this heat were
5.2
4.7
4.7
4.7
4.5
4.5
4.7
4.7
4.6
4.7
for the first 10 laps. He had the hole shot, and checked out.
I on the other hand, not having any idea how the car would handle running these slower speeds (This was my 10.5 car) grided the car in the rear, and let the rest of the guys go on the tone before I pulled the trigger...here's my first 10 laps.
5.9
4.7
4.7
5.8
4.8
4.8
4.8
4.9
4.7
5.1
Most of the next 3+ minutes were pretty much the same 4.8 to 5.0 range, but then with less than 30 seconds to go...it really fell flat..and times dropped to
5.0
5.2
5.4
5.4
5.6
for the last 5 laps.
I will also note, my batteries are NOT batteries I would race in the STOCK Class cause the voltages suck in part to my abuse, but because I'm a mod guy I buy run time packs, where the other guys in the class had really good stock packs...and they are babied....with all that info, I was VERY pleased to be so close with no other runs....
I had planned to drop 2 teeth in the main, just to see how that felt and if it improved times at all. (The ratio I ran was a 100/58 w/ 2.17 - 2.18 tires)
With NO further testing..and I was to give this motor a grade for 4 cell SPEC or SPORTSMAN type racing, I'd give it a A++ rating. I also let NOVAK know this..and the reasons I felt as WHY...so IF you and/or your group is looking for a possible SPEC/SPORTSMAN type STOCK based B/L motor to be used w/ 4 cell - THIS COULD BE IT. (I hope to be able to get a few more runs in with in the month...and I really think it's going to go faster yet)
Saturday June 9th - Metro R/C Speedway - JOSH SMITH running the 17.5 w/ the 3200 Carbon Lipo, once again a very strong showing against some heavy hitters in the 4300/4 cell class. I believe Josh finished 2nd in the main, but more impressive was still the fact that this motor competes are virtually the EXACT same level as the 10.5 on 4 cell....
I'm sure if Josh or Don reads this they will chime on on setup and/or other info.
Sunday June 10th - Racers Haven R/C Raceway - I had some spare time on my hands just running one class, I decided I'd try running the same motor Josh ran on Saturday...on Sunday with just 4 cells.
That race had a small 'sportsman stock' class, and I've been promising to give this motor a try as a STOCK type B/L replacement because a lot of guys have found the 13.5 motor a bit faster than their liking.
The plan was to run one qualifier and the main, since I didn't so any practice or any other running...the heat should let me know how close my calculations were going to be on the gear. Well dummy me, got the main order screwed up and missed the main so I was only able to get one run in...
The cool part was the days TQ ran a 62/5:02.50 in the previous round - so that was the target I was aiming at. I ended up running a 61/5:05.29, and some how..and for some reason (uh, cause the battery I ran had just run the 4300 class 10 minutes before and didn't have a full charge) was dumping at the 5 minute mark.
In 2 days of racing, I ran 2 packs of 4200's at least 10 - 12 times each. By the time I ran this 17.5 motor this battery pack had run 5 times that day in about a 4 hour period...in 95+ degree weather.
The TQ guys times in this heat were
5.2
4.7
4.7
4.7
4.5
4.5
4.7
4.7
4.6
4.7
for the first 10 laps. He had the hole shot, and checked out.
I on the other hand, not having any idea how the car would handle running these slower speeds (This was my 10.5 car) grided the car in the rear, and let the rest of the guys go on the tone before I pulled the trigger...here's my first 10 laps.
5.9
4.7
4.7
5.8
4.8
4.8
4.8
4.9
4.7
5.1
Most of the next 3+ minutes were pretty much the same 4.8 to 5.0 range, but then with less than 30 seconds to go...it really fell flat..and times dropped to
5.0
5.2
5.4
5.4
5.6
for the last 5 laps.
I will also note, my batteries are NOT batteries I would race in the STOCK Class cause the voltages suck in part to my abuse, but because I'm a mod guy I buy run time packs, where the other guys in the class had really good stock packs...and they are babied....with all that info, I was VERY pleased to be so close with no other runs....
I had planned to drop 2 teeth in the main, just to see how that felt and if it improved times at all. (The ratio I ran was a 100/58 w/ 2.17 - 2.18 tires)
With NO further testing..and I was to give this motor a grade for 4 cell SPEC or SPORTSMAN type racing, I'd give it a A++ rating. I also let NOVAK know this..and the reasons I felt as WHY...so IF you and/or your group is looking for a possible SPEC/SPORTSMAN type STOCK based B/L motor to be used w/ 4 cell - THIS COULD BE IT. (I hope to be able to get a few more runs in with in the month...and I really think it's going to go faster yet)