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Old 09-28-2011, 06:02 AM   #2686
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kerb, I've run 7.33 ratio all year. Fixed timing has ranged from 0 for small track, and 12 for big track. Max timing 1 point higher.
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Are you running any timing on it ?

gearing for 8delta last year for me was ~43-45mm with no timing. 4 on frequency
Thank you for the reply i am running mod 2 with no timing but my gearing is well out i was running 35mm as it was the first time out with it then i went up to 37mm so will have to try yours and see how i get on
If i need a bit more wot should try as the 75 is all new to me!!!
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Old 09-28-2011, 08:11 AM   #2687
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Thank you for the reply i am running mod 2 with no timing but my gearing is well out i was running 35mm as it was the first time out with it then i went up to 37mm so will have to try yours and see how i get on
If i need a bit more wot should try as the 75 is all new to me!!!
I ran std mode 2 (other than brakes) and 38mm rollout with a 7t delta, so an 8t would definitely need to be higher !
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Old 09-28-2011, 11:01 PM   #2688
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I ran std mode 2 (other than brakes) and 38mm rollout with a 7t delta, so an 8t would definitely need to be higher !
That good to know i was not to far out then wot benefits do you find with running a delta over a stair wound??
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Old 09-29-2011, 04:49 AM   #2689
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That good to know i was not to far out then wot benefits do you find with running a delta over a stair wound??
I find them more powerful than the 'equivalent' star wind and smoother out of a corner.
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Old 09-29-2011, 06:09 AM   #2690
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I find them more powerful than the 'equivalent' star wind and smoother out of a corner.
Hi Chris
Do you run a sensor wire? As some say you should and some say not to
Ya i found that it feels like the car is more stable and consistent thought the power curve.
can't wait till next weekend meeting in Plymouth.

Are you running in the nats this year??
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Old 09-29-2011, 06:13 AM   #2691
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I find them more powerful than the 'equivalent' star wind and smoother out of a corner.
+1
smoother all the powerband,not only when cornering.
Bought 4 different Delta wound motors since i've tried the first.
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Old 09-29-2011, 10:37 AM   #2692
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Hi Chris
Do you run a sensor wire? As some say you should and some say not to
Ya i found that it feels like the car is more stable and consistent thought the power curve.
can't wait till next weekend meeting in Plymouth.

Are you running in the nats this year??
Hiya, yes i run it sensored
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Old 09-29-2011, 12:05 PM   #2693
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Hiya, yes i run it sensored
Just one more thing i striped my motor down today for a clean and its got a red ring rota in it but the replacements are black? I went to measure it but that did not end well
The mags are unreal Am i right in saying it should be 12.5mm
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Old 09-29-2011, 01:39 PM   #2694
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Just one more thing i striped my motor down today for a clean and its got a red ring rota in it but the replacements are black? I went to measure it but that did not end well
The mags are unreal Am i right in saying it should be 12.5mm
the red one is 12.5mm yes
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Old 09-30-2011, 12:41 AM   #2695
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there is 2 different 12.5 rotors! the ones with the red faceplate with a smaller inner diameter and therefore a stronger magnetic feel than the ones with a purple or silver-greyish faceplate, that have a bigger inner diameter (Efra Stock). The purple ones are super smooth and keep the motor temperatures a bit lower but overall also give you a bit less power
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Old 09-30-2011, 03:11 AM   #2696
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there is 2 different 12.5 rotors! the ones with the red faceplate with a smaller inner diameter and therefore a stronger magnetic feel than the ones with a purple or silver-greyish faceplate, that have a bigger inner diameter (Efra Stock). The purple ones are super smooth and keep the motor temperatures a bit lower but overall also give you a bit less power
So would the purple rotor rev higher if geared right as there is less resistance from the magnet?
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Old 09-30-2011, 03:17 AM   #2697
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No.

Basically, if you need power, don'T use it unless you are force to, by regulations
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Old 09-30-2011, 04:37 AM   #2698
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No.

Basically, if you need power, don'T use it unless you are force to, by regulations
That's grate to keep in mind its grate on here talking to people that know wot they are talking about
Thank you all i was getting a bit lost with it all just need to get some track time in now
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Old 10-01-2011, 01:25 PM   #2699
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Hi need a guide as to what gear ratios people are running there 17.5s at?

I am using the GM75 speedo with Martins basic setup on, on a small to medium high grip carpet track

My motor is the GM 97357 17.5?
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Old 10-02-2011, 03:45 PM   #2700
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there is 2 different 12.5 rotors! the ones with the red faceplate with a smaller inner diameter and therefore a stronger magnetic feel than the ones with a purple or silver-greyish faceplate, that have a bigger inner diameter (Efra Stock). The purple ones are super smooth and keep the motor temperatures a bit lower but overall also give you a bit less power
isn't the silver/grey ring one 12.4mm ?
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