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Adjustable Torsion Bars

Why?

1.  Removable Front Torsion Bar

Removable front torsion bar is a set-up affecting mechanical grip on the front tyres. Removing the front 
torsion bar in your kart will decrease front-end mechanical grip.

2.  Adjustable/Removable Side Torsion Bar (chassis fourth rail)

The tension bolts on the fourth rail on some karts are designed to allow adjustment to the stiffness of 
the centre section of these chassis structures. Under normal track conditions this bolt should be left in 
and done up tight. As a track offers more grip or as rubber goes down on the driving line, then the bolt 
should be loosened until the point you can turn it freely with your fingers. If the track has good grip 
with a lot of rubber on the driving line or if the track is very bumpy then the bolt and its spacer should 
be removed from the kart altogether.

Some Arrow karts also provide the ability to remove the fourth rail/side torsion bar completely. Having 
the side bar fitted in your Kart will normally provide more grip. Conversely, removing this torsion bar 
will reduce grip.

3.  Adjustable/Removable Rear Torsion Bar

The  adjustable/removable  rear  torsion  bar  is  a  good  tool  in  helping  to  create  more  grip  in  the  back 
of your kart. Arrow karts are supplied with this chassis-tuning feature. This allows you to fine tune the 
chassis by increasing or decreasing rear end grip. Running the bar “full stiff” (i.e. with the blade of the 
torsion bar set vertically to the track’s surface,) will maximize rear mechanical grip as well as reducing 
rear chassis roll. Turning the bar towards the horizontal position will reduce rear mechanical grip while 
increasing rear chassis roll. Removing the rear torsion bar completely is the “free-est” setting. 

Firstly  remember,  when  racing  in  the  wet  always  start  with  the  torsion  bar  fitted  in  the  kart  and  the 
torsion bar “blade” set full stiff. When using the kart on a dry but slippery track, running with the torsion 
bar fitted and the blade set horizontally will give the kart more traction off the turn. On a track with a 
good visible rubber line we recommend that the torsion bar assembly be run “full-soft” or even removed 
from your kart. On tracks that are very bumpy in braking areas and turns, removing the rear bar will allow 
the chassis to ride over the bumps smoothly thereby allowing the tyres a better chance of maintaining 
contact with the surface.

14 

ADJUSTABLE/REMOVABLE TORSION BARS

Содержание Kart

Страница 1: ...Kart Setup Guide Arrow Karts Owners Manual Arrow Karts Owners Manual Kart Setup Guide...

Страница 2: ...44 Fax 03 9545 3743 Int l Tel 61 3 9545 3944 Fax 61 3 9545 3743 www dpeng com au karts dpeng com au Drew Price Engineering Pty Ltd 57 59 Nantilla Road North Clayton VIC 3168 Australia PO Box 4105 Mulg...

Страница 3: ...yre Pressures 16 Seat Fit and Position 17 Weighting Kart 17 Wet Weather 18 Rear Wheel Hubs 19 Brake Maintenance 20 Fitting Tyres 21 Front Wheel Alignment 21 Use and Safety guide 23 Owner registration...

Страница 4: ...urface Solution Raise axle in chassis Problem The back slides the kart oversteers going into the turns Solution Make sure the back axle is located full down in the chassis i e the kart with maximum re...

Страница 5: ...ts c g as well as moving it further back The effect on the kart will be to make it a little slower with its first off reaction on initial steering wheel input but from then on in the front will have m...

Страница 6: ...ar more however ensure you do not fit too many shims as this could cause the pad return springs to spring bind and this will seriously affect your brake performance Should you encounter difficulty fit...

Страница 7: ...ide Pod Bars Have these tightened for most conditions Loosening these will reduce grip and can also assist in reducing understeer Rear Crash Bar The rear crash bar must always be kept securely tighten...

Страница 8: ...to a table at the free end make a mark at the tip then a second mark 5cm further in 25cm from where the string is fixed The first mark you made represents the outside front tyre of your kart the seco...

Страница 9: ...t where the front tyres become dragging front brakes On a track with lots of stop turn go 180 type corners lots of Ackerman will really help The kart will change direction quickly without overworking...

Страница 10: ...t should be noted that too much caster would create a very nervous kart on entry to corners On an Arrow kart there are three possible caster settings while retaining the kart s standard camber setting...

Страница 11: ...good starting point is Open type tyres 1 x 20mm spacer and 1 x 10mm spacer on the inside of each front wheel High grip SL type tyres 1 x 20mm spacer and 1 x 5mm spacer on the inside of each front whee...

Страница 12: ...oth sides at a time being careful not to exceed the maximum regulation width overall of 1400mm Problem The track is very bumpy giving the kart a lot of bounce Solution Increase the rear track width by...

Страница 13: ...d in contrast different conditions may see a narrower rear track provide more grip We believe rear track is more an aid in balancing the kart and suggest you be prepared to experiment to search for yo...

Страница 14: ...nt seat stays on either side of the seat In certain applications 2 sets of seat stays can be fitted Note Additional seat stays are available which fix to the axle bearing flanges and the top section o...

Страница 15: ...ed with tensioning bolts on the fourth rail tighten the tensioning bolts completely Problem There is understeer all the way through the turn Solution 1 Turning the rear torsion blade bar towards the h...

Страница 16: ...on Bar The adjustable removable rear torsion bar is a good tool in helping to create more grip in the back of your kart Arrow karts are supplied with this chassis tuning feature This allows you to fin...

Страница 17: ...ure by 0 05bar 1 P S I Problem Understeer on turn in to the apex of the corner Solution Raise the front tyre pressures by 0 05bar 1 P S I Problem Understeer from the apex and out of the corner Solutio...

Страница 18: ...on its size and the model Arrow kart you re fitting it in to the Seat Position diagram and chart included with this Manual if buying a new kart will help you ascertain the correct measurements you ll...

Страница 19: ...rsteer Caster Adjustment If time permits adjusting to maximum caster indicator lines to front of kart will reduce understeer Tyre Pressure Extreme wet conditions 25 30psi 1 7 2 05kg cm2 Moderate wet c...

Страница 20: ...f going to narrow and or wide with the rear track the ability of changing to longer or shorter hubs is a major advantage in trying to obtain the ultimate kart balance Different length wheelhubs are av...

Страница 21: ...er to check if piston is against the circlip adjust the pushrod if necessary To bleed the brake depress master cylinder lever Whilst keeping pressure on the lever open the bleed screw in the brake cal...

Страница 22: ...or 2 seconds and ride them again Continue this until the brakes become very hot and they start to fade away and lose stopping power For the next 2 laps drive around very slowly and do not even touch t...

Страница 23: ...ghest quality materials and components and all possible care has been taken However you must be aware that this is a high performance racing competition vehicle designed for use only on closed racing...

Страница 24: ...your protection and safety when driving a Kart you must always wear the following Approved Safety Helmet Goggles Driving Suit Driving Gloves Driving Boots Ear Plugs Also a neck brace is highly recomme...

Страница 25: ...______________________________________________ Owner s Phone Number Business ________ _________________________________________________________________ A Hours ________ _______________________________...

Страница 26: ......

Страница 27: ...8 75 8 33 7 50 6 82 6 25 5 77 5 35 76 8 44 7 60 6 91 6 33 5 85 5 42 77 8 55 7 70 7 00 6 42 5 92 5 50 78 8 66 7 80 7 09 6 50 6 00 5 57 79 8 77 7 90 7 18 6 58 6 08 5 64 80 8 88 8 00 7 27 6 66 6 15 5 71...

Страница 28: ...ction fluid leaks Inspection brake fluid level Inspection brake response Retighten Replacement Refer to Brake section brake pads Max pad wear before replacement 4mm Replacement brake fluid Brake Disc...

Страница 29: ...ement hose Sprocket Hub Lubricate threads Steering System Inspection 1 movement Inspection 2 Immediately following damage any crash contact Retighten King Pins Must be tight but do not overtighten Rep...

Страница 30: ...nt 10 Seat Stays 12 Adjustable Removable Torsion Bars 13 Seat Fit Position 16 UNDERSTEER into turns Front Track Adjustment 9 Rear Track Adjustment 10 Tyre Pressures 15 UNDERSTEER through turns Adjusta...

Страница 31: ......

Страница 32: ...ineering For more information on Arrow karts visit the DPE website at www dpeng com au Your Arrow karts dealer is This guide is intended as a general handling and setup guide for all karts as well as...

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