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Author Topic: Stock Zero SR on a drag strip  (Read 3834 times)

Emtkopan

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Stock Zero SR on a drag strip
« on: August 21, 2017, 08:35:23 AM »

My friend is a dealer in Chattanooga. He and another guy took a stock SR out to a drag strip. Someone there called it a scooter. Anyway, the SR finished it in 8.2 sec. Here's the Facebook link https://www.facebook.com/GarryGriffithCycle/posts/10154357444607255?comment_id=10154358727587255
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Doug S

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Re: Stock Zero SR on a drag strip
« Reply #1 on: August 21, 2017, 09:27:50 AM »

It IS a scooter. Scoots like hell, in fact.
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togo

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42Cliffside

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Re: Stock Zero SR on a drag strip
« Reply #3 on: August 21, 2017, 04:42:57 PM »

Quote
Wow. Beats all the cars!?
1/8th mile not 1/4

still, ~90mph in 1/8th is Faaasssttt!!!
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MrDude_1

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Re: Stock Zero SR on a drag strip
« Reply #4 on: August 21, 2017, 07:31:53 PM »

https://en.wikipedia.org/wiki/List_of_fastest_production_cars_by_acceleration#By_1.2F4_mile_or_400_metre_times_.2811_seconds_or_less.29.5Bii.5D

Wow. Beats all the cars!?

1/8 mile. for example, my last modded car ran a 6.2 in the 1/8 but it was a 10.8s 1/4 mile car. Im sure the zero SR is somewhere in the upper 12s or lower 13s in the 1/4. It doesnt accelerate for the last half of the track.
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Ireek

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Re: Stock Zero SR on a drag strip
« Reply #5 on: August 22, 2017, 02:24:49 AM »

Ha, that's the dealer I've been talking to, good group of guys, hope that's not their demo bike, lol... 
« Last Edit: August 22, 2017, 02:26:22 AM by Ireek »
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Emtkopan

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Re: Stock Zero SR on a drag strip
« Reply #6 on: August 22, 2017, 09:11:57 AM »

Jeff is a great guy and so are all the guys at Griffith's cycles. Maybe I'll see you at the Drive Electric event on Sept 9th. We'll both be there.
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KrazyEd

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Re: Stock Zero SR on a drag strip
« Reply #7 on: August 22, 2017, 09:55:01 AM »

   I ran 11.84 @113.7 quarter mile in my Buick.
1/8th was 7.53 @ 90.71.
I haven't taken my SR out yet, but, would expect similar to what was posted.
I have been tempted to put the high speed gearing on it. I know that my
Zero to 60, and 1/8th times would probably go down, but, I have to imaging
that my 1/4 time would improve and I am fairly certain that my 1/4 MPH would improve
dramatically. Other benefits would be ( hopefully ) improved range. Less stress on components,
and less heat when ridden judiciously. I know that high load and long power draws will increase
the heat and decrease the performance but, I don't street race any more, and don't plan on any
long full throttle runs.
   Now I just have to get off my ass and get back to the strip to test my theories.
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Doug S

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Re: Stock Zero SR on a drag strip
« Reply #8 on: August 22, 2017, 08:07:29 PM »

I have been tempted to put the high speed gearing on it. I know that my
Zero to 60, and 1/8th times would probably go down, but, I have to imaging
that my 1/4 time would improve and I am fairly certain that my 1/4 MPH would improve
dramatically. Other benefits would be ( hopefully ) improved range. Less stress on components,
and less heat when ridden judiciously.

If you do some experimenting, please be sure to post your results, I for one am very interested. I'm skeptical that your top speed would go up much -- I suspect the standard gearing is set so that the mediocre horsepower is pushing the bike as fast as it can when the motor redlines. To go faster, you would need higher gearing, but also more horsepower top push the tall gear (difficult on a Zero) or less drag -- a good fairing would be very helpful, but of course would add weight so your launch would be slower yet. In short, I think you'll lose more on the bottom end than you'll gain on the top with a simple gearing change.

I don't think you'd realize better range, either. Again, the drag of the bike is really critical -- to maintain speed, you need to constantly restore the energy that's bleeding off, and it doesn't matter too much what rpm the motor is turning to do that. The efficiency of the Zero motor is outstanding over a very wide range of rpm.

But I'm all for you doing the experiment -- I'd love to be wrong!
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MrDude_1

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Re: Stock Zero SR on a drag strip
« Reply #9 on: August 23, 2017, 12:10:16 AM »

   I ran 11.84 @113.7 quarter mile in my Buick.
1/8th was 7.53 @ 90.71.


Grand National?
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Ireek

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Re: Stock Zero SR on a drag strip
« Reply #10 on: August 23, 2017, 02:52:34 AM »

Jeff is a great guy and so are all the guys at Griffith's cycles. Maybe I'll see you at the Drive Electric event on Sept 9th. We'll both be there.

Yeah, they're great guys, I spent many years in the industry and worked at most of the dealers in the Chatt area, that's pretty much the only shop I never worked at, they were Honda for many, many years.  I bought a new Duke 690 from Jeff early this year, very cool bike but after riding their FXS demo, I gotta go electric, I'm gonna try to work out a trade for a new FX really soon from them.  I am not aware of the Drive Electric event, where is it going to be? 
« Last Edit: August 23, 2017, 02:58:06 AM by Ireek »
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KrazyEd

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Re: Stock Zero SR on a drag strip
« Reply #11 on: August 23, 2017, 03:49:55 AM »

We shall see.
I have always gone taller with gearing and usually had great results. A lot of my racing has involved turbochargers, so the taller gearing works better. Technically my Buick is a Grand National. It is a Turbo T.
Only 1500 made and only in 1987. Buick knew  that they would sell every GN that they produced so loaded most of them up. The Turbo T was geared more towards the racer, so had fewer options, also several
hundred pounds lighter. Stock Gearing was 3:42, I went to 3:08. 60' times in the 1.7s with street tires, 1.4s to 1.6s with slicks. With the taller gearing on the SR, the launch should be more predictable.
Again, I have to believe that if the bike reaches 90 mph in the 1/8 mile from a stop,it HAS to gain more than 10 mph in the second 660'. without the 102 mph limit.
   Jeremiah Johnson set an 1/8th mile record in 2014 at 8.154 @ 85.6. Not sure if he was on an S or SR at the time. He has been on here, haven't seen anything from him lately.
Maybe he will see and clarify. Another rider took an FXS to an 8.799 @ 78.57 record in August of last year.  These are the only legitimate numbers I have found for the Zeros.
They are both National Records for the National Electric Drag Racing Association.

http://www.nedra.com/record_holders.html

Haven't seen many 1/4 mile numbers. I generally try to legitimize my results with before and after testing of any modifications so anything posted should be as real as possible.
Anyone can pluck numbers or results out of the air, but, that doesn't mean anything to me if my EIGHT SECOND street car gets beat by a 15 second Honda Civic.
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Richard230

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Re: Stock Zero SR on a drag strip
« Reply #12 on: August 23, 2017, 04:31:52 AM »

Motorcycle Consumer News, in their issue of September 2014, tested a 447.5 pound, 2014 SR 11.4 +, and achieved a 0-60 time of 4.58 seconds and a quarter mile time of 12.82 seconds @ 98.94 mph.
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

Emtkopan

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Re: Stock Zero SR on a drag strip
« Reply #13 on: August 23, 2017, 05:14:42 AM »

Jeff is a great guy and so are all the guys at Griffith's cycles. Maybe I'll see you at the Drive Electric event on Sept 9th. We'll both be there.

Yeah, they're great guys, I spent many years in the industry and worked at most of the dealers in the Chatt area, that's pretty much the only shop I never worked at, they were Honda for many, many years.  I bought a new Duke 690 from Jeff early this year, very cool bike but after riding their FXS demo, I gotta go electric, I'm gonna try to work out a trade for a new FX really soon from them.  I am not aware of the Drive Electric event, where is it going to be?
[/quote

I believe it's going to be down by the Chattanooga Choo Choo on Sept 9th 3p -8p. https://driveelectricweek.org/event.php?eventid=1025
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KrazyEd

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Re: Stock Zero SR on a drag strip
« Reply #14 on: August 26, 2017, 09:26:00 PM »

I dug up and read the Motorcycle Consumer News article as I was wondering why it seemed so heavy. It had the Power Tank installed.
That would also explain the extra weight and slow zero to 60 time.
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