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Old 02-07-2003, 01:43 AM   #1216
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Default two-speeds

Quote:
Originally posted by V-One S
I asked the same question once,
I was explained it, now i know how it works

But I'd have every1 in worse a shape then before i started explaining

U follow me there?

But i asked mine to my LHS when i was first starting Nitro.

I dont see why they dont make 2 speeds for electrics.
Or do they?
Cause then they would go a little quicker.

(540's i mean)
There are some electric two-speeds available however, I would suspect that 2 primary reasons for electrics not generally running them and or accepting the idea as a whole is.

1) Gearing is accepted as being readily changeable on an ep and most drivers have several spur/pinion combos making thier gearing far more adaptable to particular tracks than a nitro.

2) An electric has a far more useable power/speed range than a nitro allowing good accelaration without so much sacrifice of top end and visa-versa.

This is not fact just my opinion, feel free to respond

gt

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Old 02-07-2003, 01:49 AM   #1217
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I see what u mean


Well with the 540's

When i went to a meet while it was on the guy said something about it being the theoretical slowest class our club ran

So i thought, u run a 2 speed, what is it, u gear 1st 25%lower, 15% higher then with a 1 speed, so they'd still end up with a quicker accel and a higher top end.

But then, the other reason out there could be that the sudden drop in RPM isnt good for the electric motors.


But thats my opinion as well.
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Old 02-07-2003, 01:56 AM   #1218
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Quote:
Originally posted by V-One S
I see what u mean


Well with the 540's

When i went to a meet while it was on the guy said something about it being the theoretical slowest class our club ran

So i thought, u run a 2 speed, what is it, u gear 1st 25%lower, 15% higher then with a 1 speed, so they'd still end up with a quicker accel and a higher top end.

But then, the other reason out there could be that the sudden drop in RPM isnt good for the electric motors.


But thats my opinion as well.
It also requires higher rpm and torque to power a 2 speed although with the big capacity packs now available it shouldnt really be a problem.

gt

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Old 02-07-2003, 01:58 AM   #1219
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Well they could always develop a softer spring for it.

But yeah

It prob comes down to the power produced from an electric is way lower then a nitro car.
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Old 02-07-2003, 03:34 AM   #1220
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u would need a stiffer spring to make 2nd kick in at a high rpm

or

u could just screw the grub screw in to make it stiffer


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Old 02-07-2003, 03:40 AM   #1221
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u would need a stiffer spring to make 2nd kick in at a high rpm

or

u could just screw the grub screw in to make it stiffer


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Old 02-07-2003, 04:30 AM   #1222
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Well how i took wat squizz said was, that he was meaning a nitro revs higher then an electric, thats why i said a softer one, cause an electric motor might only rev to 6000 whereas a nitro might rev to 10,000 instead, so for the nitro u might engage at 7000 so your engaging at a higher rpm then what the electric motor can spin

Thats why i said softer to allow it to engage at a lower rpm for the motor.

Oh well.

I dont know which engine spins quicker.
So its all my opinion
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Old 02-07-2003, 01:24 PM   #1223
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Quote:
Originally posted by V-One S
Well how i took wat squizz said was, that he was meaning a nitro revs higher then an electric, thats why i said a softer one, cause an electric motor might only rev to 6000 whereas a nitro might rev to 10,000 instead, so for the nitro u might engage at 7000 so your engaging at a higher rpm then what the electric motor can spin

Thats why i said softer to allow it to engage at a lower rpm for the motor.

Oh well.

I dont know which engine spins quicker.
So its all my opinion
Exactly.....Nitros can rev 32-38000 rpm with 1.5+ hp
An electric (I think) Is around 10-20000 rpm so a softer spring would be required.

gt

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Old 02-08-2003, 01:10 AM   #1224
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Shit i thought it was lower then that.


So how fast u rekon the GS15-r engine revs at?
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Old 02-08-2003, 01:16 AM   #1225
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yeah i see i thought u wanted it to change at a higher rpm

not that the eninge would have to spin at a higher rpm to get it there

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Old 02-08-2003, 01:19 AM   #1226
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Oh well, we all make mistakes.
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Old 02-08-2003, 01:30 AM   #1227
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hi?

i heard that the gs-15r rev's are 29-30000rpms
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Old 02-08-2003, 01:32 AM   #1228
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Default revs

Quote:
Originally posted by V-One S
Shit i thought it was lower then that.


So how fast u rekon the GS15-r engine revs at?
Id reckon 25000 would be optimistic

gt

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Old 02-08-2003, 01:34 AM   #1229
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Ok kools


I was trying to work theoretical speeds.
But i didnt have an rpm to work with
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Old 02-08-2003, 01:38 AM   #1230
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Default revs

Quote:
Originally posted by sausage_link
hi?

i heard that the gs-15r rev's are 29-30000rpms
I could be wrong but I made that call based on the fact that the engines biggest attribute is torque, this is why the car responds so well to a 2-speed (gearing compensates for low rpm)

gt

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