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TILLETT T8/T9 KART RACING SEATS

T8 Description

The T8 and T8 1/4 are the most popular seats made by Tillett Racing Seats. The shape of the T8 is very similar to that of the T7; both have the same 63 degree driving angle and the same excellent comfort and depth. The only difference between the two shapes is that the T8 is slightly smaller at the top and slightly bigger at the bottom. The T8 was the first kart seat to be made using the RTM production method. This system makes strong fibreglass mouldings with uniform quality and thickness, the process also speeds up production, keeping the T8 price below that of the handmade models. There are two rigidity options Standard and Soft.

The composite quality of the T8 is perfect and the two smooth sides keep a clean professional image throughout the life of the seat. The T8 can be ordered uncovered, with a 1/4 or 1/2 partial cover or a full cover. New for 2012 are the white and silver options. From January 2012 all covered seats will use the white, silver or black fibre. The clear seats will not be used for covered seats as the adhesive shows through the translucent part. All Soft T8 seats are white fibre. The uncovered clear T8 remains to provide a low cost seat option.

The super strong XL T8 Rental is used for the corporate market and is available in clear, black and silver versions.

T8 Hand

2010 WSK KF3 Champion Max Verstappen
The fixed thickness of the injected T8 moulding does enable small variations in rigidity but for professional drivers it is important to have the ability to make a wide variety of specifications.

The flexibility from the handmade process of manufacture allows a complete range of T8 rigidity and weights to match the ones available in the other handmade shapes such as the T10 or T11. In the smaller sizes some have the letters "cd" after the size. This "cd" indicates a cut down low back version.

T8/T9 Details

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CHOOSING YOUR KART SEAT

When choosing your new Tillett seat, please take into consideration that it is often tempting to pick a seat that is too big.

In a new seat, it is wise to choose a tight fit, as this offers the best protection for the ribs and the body. When a seat is too loose, the chances of damaging the body are much higher. In the course of an accident, if you move towards the side of a seat, the impact is much greater than if your body is hard against the side of the seat. In the same way people wearing no seat belt in a car crash will damage themselves far more than one instantly restrained by a seat belt. The best way to work out your seat size is by using your waist size and weight.

Size Graph

Kart Seat Size Guide

Resources

Download Our Seat Dimensions Guide Download Our Seat Dimension Guide
Download Our Seat Installation Guide Download Our Installation Guide

Rigity and Weight

RIGIDITY
Altering the rigidity of the seat will affect the handling of the kart. To make sure that the seat you buy this year will be the same as the one you buy next year, Tillett Racing Seats are made to set specifications. Other seat manufacturer's products often vary in thickness and the mouldings are nearly always resin rich, which makes them inconsistent in rigidity and strength. Our seats are unique in that they can be purchased with various consistent levels of rigidity.

THE T5, T7, T8 Handmade, T9, T10 and T11
When you buy most Tillett seats, you can choose between at three levels of rigidity.

Flexible (a seat that allows the chassis to flex more)
Standard (based on most karts uncovered seats)
Rigid (a stiff seat with little flex )

THE T8 & T12
The T8 and T12 seats are injected into predetermined cavity, and by changing the materials, we can alter the performance characteristics with total consistency. Therefore you can order soft or standard throughout all the T8 and T12 range. (For an increased range of rigidity order the hand made T8 and T11 versions can give you the same shape with an increased range of rigidity.)

THE FLEXIBLE
T5VG, T7VG, T8VG, T9VG, T10VG & T11VG
The flexible seats were originally designed for use with Formula A karts running on high grip tyres. Nowadays we also find that these seat work particularly well with engines like the Rotax Max. An engine with low bottom end power often needs more chassis flex to lift the inside rear wheel and this helps to avoid bogging the engines down when driving out of the corners. However, many people use the flexible (VG) seat in all sorts of different classes, often improving lap times. The above is not a cast iron rule and does depend on track condition, make of chassis and tyres. A chassis, which has a problem and is not balanced, or is bogging down out of corners, can sometimes be transformed by changing the seat's rigidity.
There is also a VP rigidity, which is very thin and flexible and is only ordered by customers determined to get the most flexible seat possible. These have to be made to order, and can not be ordered online.

WEIGHT
It is easy to make a seat light, it is not so easy to make a lightweight seat that can hold a driver securely without breakage during an accident. Using carbon-KEVLAR® fabric is almost irrelevant if the resin and curing processes do not compliment the expensive fibres, with an ultra light seat most of the seat strength can be lost and fracturing can occur if every element of the seats construction is not correct.

The Carbon/Kevlar seats can be as stiff or as soft as all our other types.

The rigidity that matches our standard T5, T7, T8, T9, T10, T11 and T12 seats and most other makes, is designated 'K' in the table below.
The rigidity to match a flexible T5VG, T7VG, T8VG, T9VG, T10KG and T11VG is designated the "KG".

For a lightweight, rigid seat, order "CR".

All of the weights quoted below are approximate as the weight is also affected by size.

Seat Type Cover Type Avg Weight

T5KG Rev. T8KG, T9KG, T10KG and T11KG

Uncovered

0.8 kg

T10iK

Uncovered

0.9 kg

T10iCR

Uncovered

1.1 kg

T10iCXR

Uncovered

1.3 kg

T5VG Rev. T8VG, T9VG, T10VG and T11VG

Uncovered

1.1 kg

T5 Rev. T8 hand, T9 , T10 and T11 

Uncovered

1.4 kg

T5R Rev. T8R hand, T9R, T10R and T11R

Uncovered

1.7 kg

T5XR Rev. T8XR hand, T9XR, T10XR and T11XR

Uncovered

1.9 kg

T8 

Uncovered

1.6 kg

¼ Covers on the above uncovered seats weigh an additional 0.2 kg

½ Covers on the above uncovered seats weigh an additional 0.3 kg

Full covers on the above uncovered seats weigh an additional 0.4 kg

T5,T7KG

Full

1.1 kg

T5,T7K

Full

1.4 kg

T5,T7CR

Full

1.6 kg

T5 or T7

Full

2.2 kg

T5VG or T7VG

Full

1.7 kg

T250 KG

Part Covered

1.7 kg

T250

Uncovered

2.25 kg

Carbon/glass Blackhawk B1

Part Covered

3.75 kg

Carbon B2 race car seat

Uncovered

2.75 kg

Carbon/Glass B3 race car seat

Uncovered

4.5 kg

W1 car seat

Uncovered

3 kg

W2 car seat

Uncovered

3.25 kg

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