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Old 06-27-2009, 12:33 PM   #1306
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I have a 009 and want to race the 17.5 class. I have a 108 spur on it now, need help in finding a starting pinion size. I am using a SPX esc and Famton motor.
thanks
I am running a 104 spur ( 1.7 internal ratio ) and that seems to get me all the FDR's I need. I know you are asking for the pinion size... so read on....

Final drive ratio ( FDR ) depends on too many things to give you a good answer. Batteries, amount of drag brakes, *timing profile**, "physical" timing in your motor, last but not least *track layout* and just to throw a last curve ball, ambient temperature. It really is a moving target, if you just want to risk it and possibly overheat your new motor you can try something way below 5.0. I've run, with the same trinity duo motor, an FDR from 4.2 all the way to 5.0 using different timing profiles and drag brake settings etc ( all of the above factoring in ) using the tekin RS ESC and the LRP SPX ESC. Basically the FDR is wildly different considering all the variables stated above especially jumping from one ESC to the next and all the settings in between.

Given all that, if you want to start with something I'd say run timing profile 6 or 7 in SPX ( and little to no physical motor timing ) and with your Spur at 108 i'd run a 37 tooth pinion to start.
That would be a 4.96 FDR ( for a generic 17.5 motor ). Temp your motor after 2 -3 minutes and re-gear accordingly ( with a target of 160 degree motor temp ).
Goodluck !

Last edited by Magnet Top; 06-27-2009 at 07:18 PM.
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Old 06-27-2009, 05:04 PM   #1307
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I have a 009 and want to race the 17.5 class. I have a 108 spur on it now, need help in finding a starting pinion size. I am using a SPX esc and Famton motor.
thanks
I'm a little different in my gearing. I run 17.5 duo, asphalt, and SPX. At profile 8 I am around a 4.1. I've gone as low as 3.9 and as high as 4.25. My temps are never above ~140. I use a 98 tooth spur, I just think it fits a little better.
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Old 06-27-2009, 09:13 PM   #1308
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Old 06-29-2009, 12:08 PM   #1309
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Do the 008 aluminum shock bodies fit the rest of the shock parts that come with the 009? I need to replace a shock body and the aluminum 008 bodies are all I see on stormer. thanks.

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Old 06-29-2009, 03:22 PM   #1310
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Do the 008 aluminum shock bodies fit the rest of the shock parts that come with the 009? I need to replace a shock body and the aluminum 008 bodies are all I see on stormer. thanks.

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No. The aluminum bodies are for the aluminum shock set only. You need #308331.

There is no way to switch to aluminum bodies without purchasing the complete aluminum shock set, because the plastic shocks use different parts.
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Old 06-29-2009, 05:45 PM   #1311
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No. The aluminum bodies are for the aluminum shock set only. You need #308331.

There is no way to switch to aluminum bodies without purchasing the complete aluminum shock set, because the plastic shocks use different parts.
Awesome, thanks for the info! love you guys at nexus... always helpin us racers out!
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Old 06-29-2009, 05:53 PM   #1312
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I'm a little different in my gearing. I run 17.5 duo, asphalt, and SPX. At profile 8 I am around a 4.1. I've gone as low as 3.9 and as high as 4.25. My temps are never above ~140. I use a 98 tooth spur, I just think it fits a little better.
What battery do you run? I run the same set-up as you do but my ratio is around 4.75 due to the fact that best performance ive found on the duo is around 175 nd it can handle the higher temps
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Old 06-29-2009, 08:17 PM   #1313
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What battery do you run? I run the same set-up as you do but my ratio is around 4.75 due to the fact that best performance ive found on the duo is around 175 nd it can handle the higher temps
SMC Lightning Volt (28C) soon to be C-Max. My laptimes are up there with the best of them at the track (off by a 1/10 or 2, but that's skill level). I've tested with higher ratios (above 4.5) but I still get the best giddy up around 4.1.
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Old 06-29-2009, 09:47 PM   #1314
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SMC Lightning Volt (28C) soon to be C-Max. My laptimes are up there with the best of them at the track (off by a 1/10 or 2, but that's skill level). I've tested with higher ratios (above 4.5) but I still get the best giddy up around 4.1.
Is that battery fast charge capable? If not how many amps are you charging at?
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Old 06-30-2009, 05:50 AM   #1315
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Is that battery fast charge capable? If not how many amps are you charging at?
I charge at 1C, but Danny at SMC says all his batteries can be charged at 2C.
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Old 06-30-2009, 05:30 PM   #1316
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I charge at 1C, but Danny at SMC says all his batteries can be charged at 2C.
So it's probably safe to say it can be charged at least at 1.5C
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Old 06-30-2009, 06:50 PM   #1317
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So it's probably safe to say it can be charged at least at 1.5C
Absolutely.
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Old 06-30-2009, 08:14 PM   #1318
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Default best lipo tray for 09

yep whats the best lipo tray for the 09 car and can i see some pics and price on them thanks for info
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Old 06-30-2009, 10:03 PM   #1319
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My Xray 009 is featured on the cover of the August issue of XRC. I wrote the review on the car and did testing at the brand new OCRC carpet track in Huntington Beach, CA. Many thanks to the guys at XRC for putting a touring car on the cover!
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Old 06-30-2009, 11:17 PM   #1320
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My Xray 009 is featured on the cover of the August issue of XRC. I wrote the review on the car and did testing at the brand new OCRC carpet track in Huntington Beach, CA. Many thanks to the guys at XRC for putting a touring car on the cover!
Wow, not a rock crawler or some other worthless POS.
And very Yummy
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