Shop

Description

AST Multipoint Weld-in Roll Cage Nissan Silvia S13 Hatchback V3 NASCAR door

The AST Multipoint Weld-in Roll Cage Nissan Silvia S13 Hatchback V3 NASCAR door is a full roll cage that is permanently welded into the three-door Nissan Silvia S13, at ten weld points and with NASCAR door bars. This Multipoint Roll Cage S13 V3 NASCAR is designated by AST as a drift version.

The difference with an eight-point weld-in cage lies in the spread. With ten weld points the forces reach the body in more places, so there is less stress per point. On a S13 that is already thirty years old, that counts for extra.

Key benefits

• Ten weld points: two more than a regular weld-in cage, the forces are spread better.
• NASCAR door bars: several curved tubes in the door for far more side protection.
• Designated by AST as a drift version: designed specifically for drift use.
• Equipment level V3: main hoop with braces and door bars, without the extra diagonal of the V4.
• E355 steel: 45 mm diameter main hoop, 40 mm for the rest of the structure.
• Custom base plates: 3 mm thick steel, designed per car rather than universal.
• Exact fit: the body is digitised with laser scanners before the cage is drawn in 3D.
• Complete weld-in kit: including reinforcement gussets, fixings, documentation, installation manual, sticker set and a weld test piece.

Fits

Nissan Silvia S13, 3-door Hatchback

• Nissan Silvia S13 Hatchback, also known as 180SX and 240SX
• Version: full roll cage, multipoint weld-in, V3 with NASCAR door bars
• Drift first of all, plus circuit and competition

A multipoint cage needs more changes to the interior than a regular weld-in cage, because welding to the body has to be done in more places.

Technical specifications

• Manufacturer: AST Roll Cages
• Manufacturer part number: CMBN03637
• Sunroof: suitable for a roof without sunroof
• Headlining: suitable for a roof without headlining
• Rear anchoring: in the rear suspension area
• Rear structure shape: V design
• Type: full roll cage, permanently welded in, multipoint, with NASCAR door bars
• Main hoop: E355 steel, 45 mm diameter
• Other structure: E355 steel, 40 mm diameter
• Base plates: 3 mm steel, designed per car
• Mounting: 10 weld points to the body
• Weight: 210 kg
• Finish: supplied as a weld-in kit, unpainted
• Included: weld-in kit, reinforcement gussets, base plates, bolts, washers and nuts, documentation, installation manual, sticker set and a weld test piece

Installation and delivery

The cage is built to order; the standard delivery time is 15 to 35 working days. The weld-in kit is assembled in the car and welded to the body in ten places. That means trim, insulation and sometimes wiring have to come out in more places than with an eight-point cage. The NASCAR door bars run into the door, so measure beforehand whether your seat position and helmet still clear them. Have the welding done by someone with roll cage experience. This cage is intended for circuit and competition use; check the regulations of your own motorsport organisation beforehand, because not every class allows NASCAR doors.

Ten weld points instead of eight: less stress per point, more grip on a body that takes a lot of punishment.

Why choose this Multipoint Roll Cage S13 V3 NASCAR?

This cage is put together very differently from the weld-in V5 NASCAR. The V5 has the complete bar set on eight weld points, this one has less tubing on ten weld points. For roughly forty euros difference you are choosing between more structure or a wider spread of forces. On an old S13 where the panels are no longer new everywhere, that choice often comes down in favour of the extra mounting points.

Frequently asked questions

What is the difference with a regular weld-in cage?

The number of weld points. The Multipoint Roll Cage S13 V3 NASCAR is attached at ten points, a regular weld-in cage at eight.

What is the difference with the multipoint V4 NASCAR?

The V4 has an extra diagonal bar and harness bar. The V3 keeps to the main hoop with braces and door bars.

Does the original door trim still fit?

No. The NASCAR tubes run too far into the door, so the trim comes out.

Can this cage be removed later?

No, it is permanently welded to the body. For a dismountable solution, look at the half roll cage or the bolt-in range.

What is the delivery time?

The standard delivery time for this roll cage is 15 to 35 working days, because AST builds every cage to order.

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.