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Old 09-09-2013, 06:03 AM
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Default touring 17.5

what would be the best motor, rotor combo for carpet racing? 17.5 touring car.
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Old 09-09-2013, 11:51 AM
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Originally Posted by Rick Pfeilstick View Post
what would be the best motor, rotor combo for carpet racing? 17.5 touring car.
I would get Apex V2 HT Stator with 12.5HT rotor
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Last edited by idbdoug; 09-09-2013 at 05:42 PM.
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Old 09-09-2013, 02:08 PM
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Originally Posted by Rick Pfeilstick View Post
what would be the best motor, rotor combo for carpet racing? 17.5 touring car.
If where you race is outlawing the Ion4 (D3.5), the closest thing I found to that motor is the Apex2 Torque stator, 12.5 torque rotor, timing set at 50 degrees, with a FDR of 3.51. I TQ'ed at the Gate in Ohio with that set up. I seen people post they ran close to the same FDR, but with higher timing. I tried 55 timing, and the performance was the same, but the motor just got warmer. Now, it seems Trinity based motors get better after the first batch, and currently I am running a first batch motor.
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Old 09-09-2013, 02:21 PM
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The ApexV2 HT/HT combo is very close to the Ion4 motors in regards to torque production. They make about the same torque numbers, but they make it higher in the powerband, which is why they produce more RPM than the Ion4.

I have two first batch ApexV2 motors and they're doing good, on-road and off-road.
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Old 10-01-2013, 06:09 AM
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Has anyone tried a 13.5 APEXv2 (Killshot based motor) vs. a 13.5 Ionv4 (D3.5 based motor)?

Is it a step up? Faster? More torque?

From what I've read, the Killshot based motor can be very sensitive to timing and gearing and the D3.5 motor has been a solid motor.

What would you recommend for 1/12th scale?
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Old 10-03-2013, 04:41 AM
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Originally Posted by RacinJ View Post
Has anyone tried a 13.5 APEXv2 (Killshot based motor) vs. a 13.5 Ionv4 (D3.5 based motor)?

Is it a step up? Faster? More torque?

From what I've read, the Killshot based motor can be very sensitive to timing and gearing and the D3.5 motor has been a solid motor.

What would you recommend for 1/12th scale?
The D3.5 is slightly better motor but it's only ROAR legal until March 2014 or so. Some tracks and some organized race events such as IIC this year don't allow D3.5 based motors. If you get the D3.5, get the version with 12.5HT rotor. If you get the Apex v2, get HT Stator with a 12.5HT rotor.
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Old 10-03-2013, 05:03 AM
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^ The 13.5 D3.5 is not going to be pulled in 3/14, only the 17.5.
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Old 10-03-2013, 05:56 PM
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The APEXv2 torque stator is the way to go in 13.5, 1/12th scale over the IONv4?

I wanted to see if anyone has tested the different stators.

I know the IONv4 17.5 will no longer be legal but I'm not aware of the 13.5 version going away.
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Old 10-03-2013, 07:31 PM
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Yes my mistake, only D3.5 17.5 will not be legal by ROAR.
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Old 10-04-2013, 05:19 AM
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Originally Posted by RacinJ View Post
The APEXv2 torque stator is the way to go in 13.5, 1/12th scale over the IONv4?

I wanted to see if anyone has tested the different stators.

I know the IONv4 17.5 will no longer be legal but I'm not aware of the 13.5 version going away.
It is safe to say that the D3.5 is pretty much the benchmark right now as far as motors go. While there is not the disparity with the 13.5s that you see when comparing the 17.5 D3.5 to its competitors, the 13.5 D3.5 has won pretty much every big race carpet race in Superstock 12th since it was released.

I have ran the 13.5 D3.5 in 12th and WGT... and while I have only ran the Killshot 13.5 in WGT, the motors feel quite similar in powerband and produce very similar lap times. I would definitely give the edge to the D3.5, though. Any race where they are allowed, you would be silly not to run them.

Based on the dyno info we have collected, the RPM stator seems to be the ticket for the 1S classes.
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Old 10-04-2013, 09:54 PM
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With the standard or torque rotor?
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Old 10-05-2013, 05:54 AM
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Both can and do work... it will just depend on how you are gearing/timing them. Personally, I prefer the stock 12.3BP rotor for 13.5 12th/WGT.
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Old 10-09-2013, 11:44 PM
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Although the Ion4 will be illegal for stock racing, the mod motors will still be perfectly fine for racing, am I correct?
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Old 10-13-2013, 01:45 AM
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Speaking strictly of other (non-17.5) windings, what's the core difference between the APEXv2 and IONv4, if running the same broadband rotors? I never did figure out the difference between the Revtechs and D3.5s, so please excuse my noobish question.
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Old 10-22-2013, 08:22 PM
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This weekend at the Halloween Classic I will be running 13.5 (ion4) TC. What rotor would you use and a starting FDR & timing please. I think the straight is 80-90 feet long. Usually they have a very flowing layout also.

Also, I tried mod TC this weekend in Toledo. Smaller tight track with an ion4 5.5. The motor temp was high (170-180) compared to other motors of the same turn being ran. My FDR was around an 8, timing at 0 mark. I also tried it in blinky, boost, and played with misc ESC settings. I am new to trying mod, so I am sure I was too heavy on the brakes and not smooth at all. Any ideas, or was my FDR off?
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