Another S13 build at the JGY shop

Removing the factory single slammer for a more potent SR20 powerplant

Ferrea dual springs and retainers on this head build

Decked head surface to insure a perfect seal

All clean

BC .5mm over intake and exhaust valves to help flow better

Ryan decided to trade in the other S13 for our S15 fronted Hatch

This car is not only going to be fast but have style too

Out with the old suspension arms

and now in with the new

Ryan's Evo brakes are on his S13.5

Outside putting the vibe out

Crank shaft in.

CP Pistons installed

Bottom end together

Head on and Cometic gasket in between

Nice

Head installed

Chrome intake manifold

JGY crank pulley

HKS cams and rocker arm stoppers

JGY fuel rail and GT2871R

The motor's finished

Competition Clutch Twin Plate Clutch

Another view of the clutch

The motor is in and the intercooler kit's on

S15 front end

Harness work

Finished install, time for dyno numbers

Ryan's car getting dyno'd

Before tuning. At the beginning, we got 370HP and 305tq at 9.x psi. (chart shows 12, but that is the peak, at the 370HP mark and RPM level, he was 9.x psi)

After the initial breaking the motor in, we tweaked the JWT program and set the correct fuel pressure, this motor kept making more power each pull.

We netted 431HP and 380tq at a staggering 11.9psi. This motor was built with care and love and apparently LOVES power.

Ryan brought his lady friend with him to pick up the car, Miss Red

Ryan taking his baby home

Later, Ryan called us and said that the 240sx was the fastest car that he has ever been in and was extremely impressed with the job and service.