1991 S5 Vert TII 13B-RE Cosmo Conversion

Engine Rebuild & Turbo System Upgrade

Spring '08 : We rebuilt the engine installing two of our Cosmo Oil Pan Braces as a girdle for rigidity, and installing TII Exhaust Sleeves. Additionally, we upgraded the turbo to a GT-35R. Parts replaced, modified and/or upgraded include;

Photographs of the Rebuilt Engine & Oil Pan Braces

Engine #1
Engine #2
Engine #3
Oil Pan Brace

Turbo System Components

Tial 44mm Wastegate
Tial BOV
GT35R Turbo

Photograph of the Engine Long Block with the Garrett GT35R Turbo

Current Engine Bay Photographs April 2008

Passenger Side View
Front View
Driver's Side View

Summer '08 : We installed an HKS Twin Power and an 18" Flex-a-Lite Black Magic Electric Fan and shroud.

Oil Catch Can
HKS Twin Power
Electric Fan
Turbo Blanket

Engine Bay Photographs March 2009

Passenger Side View
Front View
Driver's Side View

Spring 2009 we installed a new convertible top & headliner with all new seals and trim and dyno tuned to 402 RWHP at 14.7 psi Boost.

April 2009
May 2009

We installed a FJO Injector Driver, Energy Suspension Bumper Stop & Mazdaspeed Oil Filler Neck Cap and will be re-tuning soon.

Injector Driver
Bumper Stop
Oil Cap

Dyno tuned to 435 RWHP @ 15.4 psi June 2009

June 2009

Engine Bay photographs after installation of Radiator Cooling Panel

Passenger Side View 02/02/10
Front View 02/02/10
Driver's Side View 02/02/10

Fall 2010 we decided to install the Koyo N-Flo Radiator for the added cooling benefits. We also installed Samco Silicone Radiator Hoses and NGK Race Plugs (heat range 10).

Passenger Side View 09/15/10
Front View 09/15/10
Driver's Side View 09/15/10

Dyno Chart 451 RWHP @ 15 psi


Click to view a video of one of our dyno runs

Click to view a video taken from the rear during one of our dyno runs

Click on photographs for larger image



Click Here to see other Banzai Racing projects