ElectricMotorcycleForum.com
Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: Emtkopan on August 21, 2017, 08:35:23 AM
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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 (https://www.facebook.com/GarryGriffithCycle/posts/10154357444607255?comment_id=10154358727587255)
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It IS a scooter. Scoots like hell, in fact.
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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!?
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Wow. Beats all the cars!?
1/8th mile not 1/4
still, ~90mph in 1/8th is Faaasssttt!!!
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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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Ha, that's the dealer I've been talking to, good group of guys, hope that's not their demo bike, lol...
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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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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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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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I ran 11.84 @113.7 quarter mile in my Buick.
1/8th was 7.53 @ 90.71.
Grand National?
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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?
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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 (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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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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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?
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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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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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And for the non stock Zero SR 8):
https://youtu.be/iVMPBnfhukM (https://youtu.be/iVMPBnfhukM)
Drag racing my modified Zero S 2012. weight total is 191 pounds and 85% max power availlable. I was racing against a GSX witch did 12.56s
0-60ft: 1.68s
0-330ft: 4.63s
1/8mile: 7.3 @ 87.4mph
1/4mile: 12.2@92mph
max power limit was set to 85% and gear was set for torque and not speed.
Doc
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A Zero with wheelie bars - that caught me by surprise. If you can somehow increase your top-end speed you will have a real weapon there.
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A Zero with wheelie bars - that caught me by surprise. If you can somehow increase your top-end speed you will have a real weapon there.
Yeah... The wheelie bar is needed as at as low as 50% motor current it want to wheelie!
I replaced the sproket ratio but never had a chance to test the new highwe speed gearing.
I expect 190km/h and sub 12s
Doc
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I had been waiting to see the change with the taller gearing.
Was having a discussion earlier in the thread about putting it
onto my 2016 SR. 90 mph gained from a stop in 660 feet.
I am pretty certain that the ET will be higher and MPH probably
lower for 1/8 mile, but, still believe that it should be quicker
and faster in the 1/4, since you aren't dead heading for most of it.
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I had been waiting to see the change with the taller gearing.
Was having a discussion earlier in the thread about putting it
onto my 2016 SR. 90 mph gained from a stop in 660 feet.
I am pretty certain that the ET will be higher and MPH probably
lower for 1/8 mile, but, still believe that it should be quicker
and faster in the 1/4, since you aren't dead heading for most of it.
Yes in fact with the 132T + 28T i had 7.3s on the 1/8 mile
Now with the 98T +30T i had 7.6s for the 1/8 mile witch only raised by 0.3s... but the E.T. still not tested with the higher speed gearing.
Doc
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Wheelie bars still needed with taller gearing?
I know that won't be needed with SR at about double
the weight.
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Wheelie bars still needed with taller gearing?
I know that won't be needed with SR at about double
the weight.
That's borderline.. I think i will still need it but if i could remove it i would!.. but fliping with the bike is not an option!
Doc
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I finally got a chance to take my 2016 SR to the Drag Strip today
I made 5 quarter mile passes. 3 in sport, One in custom with everything maxed
and, one where I started in eco mode, backed off the throttle, switched to sport
1/8th mile time and MPH were similar to those listed by OP
8.311 @86.53, 8.309 @87.01, 8.308 @86.88 in Sport
8.288 @87.04 in custom. The SNAFU run was 11.006 @82.95
The Quarter Mile times were as follows
Sport 13.048@99.64, 13.009 @100.6613.024 @100.23
Custom 13.011 @99.38
Snafu 15.828 @99.11
Bike started out fully charged.
I would make two passes then charge up again
Ambient temperature Mid 60s
No wind
Motor temperature at start of run 80 degrees
Motor got up to just over 120 degrees at end of pass according to dash
Bike is equipped with the Zero Touring Screen
I have only been able to find a few times online none for a 2016.
Has anyone else had their pre 2017 down the drag strip?
Hopefully, next time with thinner air and more tire pressure
I will hit 12 seconds. Sad that with a garage full of 9 and 10 second motorcycles,
I am shooting for 12s
Even my 6 cylinder Buick Spanks My SR
I have never felt the exhilaration of power and acceleration that everyone raves about
I always figured that I had been spoiled by always having extremely fast gas bikes.
Hopefully, that is the case. I would hate to think that there is something off with my SR