Sileighty

Kids Heart Sileighty
An unofficial Sileighty, that is, a 180SX with a Silvia front-end.
Overview
Manufacturer	Nissan, Kids Heart
Also called	Sil80 Nissan 180SX Nissan Silvia
Production	1998
Body and chassis
Class	Grand tourer
Body style	2+2 hatchback
Layout	FR layout
Platform	RPS13
Powertrain
Engine	SR20DET 230 PS (227 hp) @ 6200 rpm 33.6 kgf-m (243 ft·lbf) @ 4000 rpm
Transmission	5-speed manual
Dimensions
Length	4,540 mm (178.7 in)
Width	1,690 mm (66.5 in)
Height	1,290 mm (50.8 in)
Curb weight	1,150 kg (2,535 lb)

A Sileighty (シルエイティ^?) is a Nissan 180SX with a Nissan Silvia's headlights, front fenders, hood, and front bumper installed, hence the 'Sil' in front and the 'eighty' rear.

The Sileighty (also written as Sil80) originated through early street racers in Japan who owned Nissan 180SXs with damaged front ends. Because the Silvia's front panels and lights were lighter and cheaper than the 180SX replacement parts, many drifters used these parts instead. Unknown to the public until the release date, these end user modifications inspired a Japanese auto shop, Kids Heart, to produce a small number of so-called "official" or "real" Nissan Sileighties. It is on record that 400 cars were made by this shop, and were only sold in 1998. Essentially the kouki (late model) 180SX Type-X tuned for drifting, the cars are distinguished from their home-built brethren by the distinctive "Sileighty" name on the rear dressplate and quarter windows. The Sileighty includes performance-oriented modifications such as a new ECU, a stiffer suspension system, an improved limited-slip differential, and an increase in turbocharger boost from 7 psi (0.5 bar) to about 13 psi (0.9 bar), resulting in approximately 230 hp (172 kW), versus 205 from the standard Silvia's SR20DET or the 180SX's 175 hp (130 kW) CA18DET. Oddly enough, many left hand drive 180SX units sold in Micronesia and the South Pacific were built with the Silvia front end as well, though they were never badged as Sileighties, just 180SXs. The Sileighty is not recognized by any government as a Nissan manufactured model; instead it is generally treated as the model of the original car before modification.

It has become common for owners of the S13 240SX, the North American version of the Nissan S platform, to make their own Sileighties by importing a Silvia front end and installing it onto a 240SX fastback. When done to a S13 240SX notchback or convertible (both of which are based on the regular Silvia, not the 180SX), it's usually referred to as a JDM Silvia conversion.