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Brakes more power than engine ?

 
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david7m



Joined: 22 Apr 2011
Posts: 1117
Location: Midlands, UK

PostPosted: Tue Feb 21, 2012 5:06 pm    Post subject: Brakes more power than engine ? Reply with quote

Hi

After reading the carb ice article thread and the reference to the carb sticking fully open, would the brakes still be able to stop you at full rpm?

Dave
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T.J. Koyen



Joined: 06 Sep 2007
Posts: 1496
Location: Wisconsin, USA

PostPosted: Tue Feb 21, 2012 6:13 pm    Post subject: Reply with quote

Probably. I can't remember ever having to test the theory, but I should hope they can.
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davidmc



Joined: 24 Feb 2008
Posts: 122
Location: Cambs

PostPosted: Tue Feb 21, 2012 6:18 pm    Post subject: Reply with quote

They can. Just consider how quickly you come to a stop compared to how long it takes to accelerate.

The problem though is that we already brake at the latest possible moment to get round the corner. If the throttle sticks at that point you're probably hitting the tyres.
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kevski



Joined: 24 Jan 2012
Posts: 31

PostPosted: Tue Feb 21, 2012 10:33 pm    Post subject: Reply with quote

When the carb ices its around the atomizer so block fuel to the engine so it dies rather than take you off full throttle into the tyres.

i.e. it freezes water around the atomizer and needle holding the slider open
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A.Farrell



Joined: 27 Feb 2009
Posts: 293
Location: Hampshire

PostPosted: Tue Feb 21, 2012 11:00 pm    Post subject: Reply with quote

i can tell you from personally experience while doing kz half way up the straight it doesnt
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Chuck McCue



Joined: 01 May 2008
Posts: 650
Location: Beautiful Sunny Neptune Beach, FL USA

PostPosted: Tue Feb 21, 2012 11:27 pm    Post subject: Reply with quote

No, But plastic barriers and a fence will.Laughing Laughing Seriously, Fastest way to kill an engine is hand over carb. intake, I have witnessed racers pulling spark plug and engine still run high RPMs.
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kevinh24



Joined: 07 Apr 2011
Posts: 433
Location: east sussex, camber

PostPosted: Tue Feb 21, 2012 11:31 pm    Post subject: Reply with quote

yes

my brakes out power my throttle,, once it got stuck and it braked me, i was near top end speed at the end of the straight as well
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John Savage



Joined: 27 Sep 2006
Posts: 896
Location: UK

PostPosted: Wed Feb 22, 2012 7:31 am    Post subject: Re: Brakes more power than engine ? Reply with quote

david7m wrote:
Hi

After reading the carb ice article thread and the reference to the carb sticking fully open, would the brakes still be able to stop you at full rpm?

Dave


Just make sure you can easily reach the ignition switch Idea
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david7m



Joined: 22 Apr 2011
Posts: 1117
Location: Midlands, UK

PostPosted: Wed Feb 22, 2012 7:36 am    Post subject: Reply with quote

Doubt you wouldn't be able to cover air intake on a Max or twist and pull plug in time, reckon like switch would be close too.
Dave
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awi



Joined: 28 Jul 2010
Posts: 477

PostPosted: Wed Feb 22, 2012 10:21 am    Post subject: Reply with quote

I had to try to kill the Aixro with brakes - no can do. Fronts go fully locked and but rear just won't stall. Luckily I found the stop button soon enough. Tip of a day; always keep helmet. Even when testing if the engine is OK to go to a track after rebuild.

I've had sticked throttle with KZ twice, and went out of track both times. There just isn't enough time to react since you're always on limit anyway. On KZ there's no killswitch, but luckily there's no torque either, so it'll stalls quite easily after killing some revs.
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lbsf1



Joined: 13 Sep 2009
Posts: 441
Location: surrey

PostPosted: Wed Feb 22, 2012 10:47 am    Post subject: Reply with quote

Yes your brakes will just about be able to stop you.

I had my throttle stick wide open once in junior max and managed to complete the race, it didn't stop particulary well and the brakes were fried by the end and it probably did god knows how much damage to the clutch (old style) however it didn't drive to badly actually, only about 3 secs of the pace.
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John Savage



Joined: 27 Sep 2006
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Location: UK

PostPosted: Wed Feb 22, 2012 12:55 pm    Post subject: Reply with quote

awi wrote:
On KZ there's no killswitch.......


It does have a clutch, although that will buzz the engine Embarassed
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A.Farrell



Joined: 27 Feb 2009
Posts: 293
Location: Hampshire

PostPosted: Wed Feb 22, 2012 1:41 pm    Post subject: Reply with quote

dont forget the kz wont change down or up with the throttle jammed.

the only option is to take the plug cap off, the numb arm/hand comes in handy later on Laughing
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banzai boy



Joined: 29 Sep 2006
Posts: 304
Location: Herts

PostPosted: Wed Feb 22, 2012 2:30 pm    Post subject: Reply with quote

I had a loose cable tie go over my throttle at shennington. I Can inform you that it takes half the gearbox straight to stop the kart. It then took me 45 seconds to work out why the throttle was stuck on.
It then took me 1 second to explain why you should always cut cable ties off!

The time you brain goes "were not slowing down" to hitting the kill switch is a long way.
either way you want to hope you have plenty of run off. If it had happened at wilkins it would have hurt. Smile
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