ACL
GTiR-spec SR20DET main And Rod Race Bearings
Though all SR20DETs are essentially the same engine, the FWD version from the Nissan Pulsar GTiR boasts wider rod bearings, and more porous main bearings, that distribute load and promote oiling better than factory RWD SR20 equipment.
stores.ebay.com/erics-performance-parts
Darton Sleeves
Ductile Iron Sleeves
The factory closed-deck design of the SR20DET is very stout, but its original cylinder sleeves don't lend well to aggressive over-bores. Our Darton Ductile iron units do, while holding more pressure.
www.dartonsleeves.com
Speed-O-Motive
-Block machining and finishing
-Sleeve installation, 90mm bore and hone
-Main journal line bore and oil groove machining
-Crankshaft balancing and polishing
-Block deck surfacing
All the time and money invested on an engine build-up could just as easily be flushed down the crapper if the services of an experienced machine shop aren't employed with the steps listed above. Each requires the use of specialized equipment that 99.9% of us do not have at our disposal, and craftsmen who 99.9% of us aren't. Do yourself a favor and don't skimp here.
www.speedomotive.com
Superior Nissan
SR20DET water pump, rockers, timing chain kit, re-build kit and master gasket set (not pictured complete)
www.superiornissanofpuentehills.com
Mazworx
90mm headgasket and 1/2-inch headstuds
www.mazworx.com
Grace Under Pressure
More power means the detonation of more air and more fuel. Left to its own devices, no small-displacement, four-cylinder engine is capable of producing the amount of power needed to compete against larger engines with more cylinders. Through forced induction, we could essentially double our SR's displacement with each atmospheric bar (14.7 psi) of boosted air and fuel we crammed into its cylinders, provided they were cooled to ambient temperatures.
Garrett GT42R
Turbocharger
Because we were turbocharging, not only was the amount of air and fuel we could introduce into combustion an important point to mind, so was how efficiently the spent charge could escape the engine and spin our turbine. This custom-sized Garrett GT42R (sorry - specs remain a G-Dimension secret) features a turbine housing and wheel trim small enough to spool quickly, but large enough to provide adequate high-boost/engine speed exhaust gas flow to spin the compressor fast for big top-end power.
www.turbobygarrett.com
G&J Aircraft & Competition
-AN hose ends and adapters
-Stainless steel braided line (not pictured)
-Miscellaneous plumbing parts
www.gandjaircraft.net
Battle Version
-Liquid-To-Air Intercooler Fabrication
-321 stainless steel exhaust manifold fabrication
Building the ideal high-power race engine means you get to break some rules. Decreasing charge plumbing length reduces pressure drop and improves power, doubly so if you can combine it with an exhaust manifold that improves exhaust gas velocity to help spool a turbo more quickly. Battle Version front-man and Formula D drifter Alex Pfeiffer accomplished both tasks with these custom pieces that also happen to fit perfectly inside a 240SX engine bay.www.battleversion.com
TIAL
-44mm wastegates (x2)
-50mm blow-off valve
www.phase2motortrend.com
G-Dimension
Modified Q45 throttle body
www.g-dimension.com