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Description

AST Multipoint Weld-in Roll Cage Nissan Silvia S14 Coupé V4 NASCAR door

The Multipoint S14 V4 NASCAR is a full roll cage from AST Roll Cages for the two-door Nissan Silvia S14 and the best-equipped drift version in the range for this car. Ten welded mounting points, NASCAR door bars, an extra diagonal brace in the main hoop and a harness bar behind the seats.

This version combines what the V4 adds in rigidity and harness mounting with the door protection of the NASCAR range. For a car that competes every week, that is a logical combination: you want to be able to attach the harnesses at the right height, and you want steel in the door that can take contact.

The rear structure has a V design. The cage is supplied unpainted.

Key benefits

• NASCAR door bars for maximum protection against contact from the side
• Harness bar behind the seats for the correct belt angle
• Extra diagonal brace in the main hoop
• V design rear structure, as AST designs it for its drift range
• Ten welded mounting points along the full length of the chassis
• E355 steel, 45 mm main hoop and 40 mm secondary structure
• Custom-made via laser scan, including gussets and 3 mm foot plates

Suitable for

Nissan Silvia S14, two-door Coupé

• S14 and S14a, rear-wheel drive
• Roofs without a sunroof
• Roofs without headlining
• Drifting and competitive track use

Technical specifications

• Manufacturer: AST Roll Cages
• Part number: CMBN03882
• Material: E355 steel
• Main hoop tube diameter: 45 mm
• Secondary structure tube diameter: 40 mm
• Foot and reinforcement plates: 3 mm steel, custom-made for each car
• Mounting: 10 welded mounting points on the bodyshell
• Door design: NASCAR door bars
• Weight: 210 kg
• Finish: unpainted
• Sunroof: for roofs without a sunroof
• Headlining: for roofs without headlining
• Rear anchorage: in the rear suspension area
• Rear structure layout: V design
• Included: weld-in kit, gussets, reinforcement plates, bolts, washers, nuts, documentation, fitting instructions and sticker set

Fitting and delivery

Plan this fitting properly from the start. The seat position determines the height of the harness bar, and the NASCAR door tubes determine how much shoulder room you have left. So test-fit the seats in position before anything is permanently fixed. After that it is the usual job: stripped car, bare metal at the welding points, ten points to weld.

The cage is custom-built after ordering. The delivery time is 15 to 35 working days.

Everything a drift car needs: the harnesses where they belong and the door full of steel.

Why choose this Multipoint S14 V4 NASCAR?

This is the point at which the S14 stops being a road car with a cage and becomes a competition car. The combination of harness bar and NASCAR door bars covers the two things that go wrong in drifting: harnesses pulling at the wrong angle, and contact from the side. Because AST scans the bodyshell in advance, those door bars sit tight in the door and you keep more room than with a structure fitted on the spot.

Frequently asked questions

Is this a half or a full roll cage?

A full roll cage with ten welded mounting points, extending into the front compartment.

What is the difference from the V3 NASCAR?

On top of that, the Multipoint S14 V4 NASCAR has an extra diagonal brace and a harness bar behind the seats.

Why a V design and not an X design?

AST builds the NASCAR drift versions of the S14 with a V design rear structure. This is specified on the product page and is not an option when ordering.

How much does this roll cage weigh?

According to AST Roll Cages, this item weighs 71 kg.

Is this roll cage homologated?

AST does not list an FIA homologation number for this item. Assume it is intended for track and competition use, and check your own organiser’s regulations beforehand.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.