2005 Subaru Wrx Sti 650whp E85 on 2040-cars

10,000 miles on motor, tuned on E85

25psi = 586whp

30psi= over 650whp

Motor: cp pistons w/ rings, pauter rods

Element Tuning Pro Comp Short Block engines are built from 100% new components and starts life from a Subaru STi bare block and a STi forged crankshaft. Fitted to our exact standards, competition crank and rod bearing are assembled to a crank that has been verified for perfect trueness . Our bearings and clearances have been tested for 10,000+ miles of racing. You may ask us how is this possible? It’s very common for racing teams to run new engines multiple times in a racing season but we would not allow this for our long term R&D. The only way to have long term durability data on your engine program is to continue using the same parts. Each season or sometimes midway through the season we would tear down our motors to inspect how the parts were holding up and how our building specifications were performing. We would inspect items such as cylinder wear, ring wear, piston wear, oil consumption, hardware fatigue, and finally crank and rod bearing wear. As long as there was no component failure we would reuse the same bearings, crank, rods, block, and pistons and continue the durability testing. It was not uncommon for us to push all the extremes to find the maximum and minimum operating range of each component and it’s clearance. With this data we have been able to build an engine that not only makes huge power but has near OEM oil level consumption. All too often motors are built too loose causing lots of engine noise, too much cylinder blow-by, and major oil consumption issues. We have tested our combination to deliver the tightest, most trouble free, and durable engine you can buy at any price.

Element Tuning Competition Big Valve Head Modifications - cosworth s2 cams

When too much power is not enough look no further than adding our competition “Big Valve” head modification to your engine. Through years of testing on the track and on the dyno the key to maximum power is unlocking the potential within the Subaru heads. The first step in the process is to select a more aggressive camshaft set utilizing more lift and duration but even then power is bottlenecked by the OEM intake and exhaust valves. Testing with a Garrett GT35R or the Element GT65 turbocharger results in a +100 whp gaine with this head package and camshafts over a stock head package. The key to this gain in the +1mm larger stainless steel intake and Inconel exhaust valves. Just camshafts alone are held back by over 40 whp when the heads are left with the OEM valves.  Element Tuning has discovered that the majority of the gains from the Subaru head are attributed to the valve size itself and not the intake and exhaust ports. Often “Big Valve” heads can be $4000 plus dollars due to the labor required to port the heads. The modifications to your supplied head (complete heads are available also at a higher price) start with a 5 angle intake valve job and it finished off with a bowl blend to maximize the flow through the intake port to the larger valve. The stems of the valves are larger and stronger than OEM therefore a precision hone of the valve guides is performed.  Many may ask why don’t you port the intake ports fully? We don’t do this because almost 100% of the gain is realized by just fitting the larger intake valve and performing a bowl blend. (HP/value/compared to porting) On top of this the head retains 100% of it’s reliability due to how thin the cast walls are. It’s all too common to see highly stressed, high HP, road race engines blow through over ported head walls.  On the exhaust side we also install a +1mm valve and hone the guide but a 2 angle with a radius valve job is performed. The exhaust port is again blended to maximize the potential of the larger exhaust valve. We are seeing +20% increase in flow on the exhaust side alone!

Ultimate Racing GT4088R 1.06 a/r twin scroll turbo kit (38mm wastegates, dump pipes, up/down with v-band connections)- custom built for my STI, great spool for a gt4088r turbo

Element tuning full 3inch exhaust

Perrin FMIC with custom intercooler piping

UR 1600cc injectors and dual bosch 044 fuel pumps

aeromotive fuel pressure regulator

tial 50mm blow off valve

eboost2  electronic boost controller

Cosworth s2 cams and ARP head studs

ARP underdrive pulleys & Kevlar timing belt, timing belt tensioner

Koyo radiator

Element Tuning oil catch can

boost logic turbo blanket, gold foil wrapped cooler pipes, perrin upper silicone rad hose, vibrant vac block, strut bar, K&N big cone filter for intake

oem spark plugs, 15w 50 mobil 1

 hydra ems (upgraded to 2.6) tuning by phil @ element tuning on E85

Driveline Modifications: ClutchMasters custom clutch and ACT flywheel sourced by Element Tuning, cryo treated new transfer gear

Suspension Modifications: Apexi Coilovers w/ rear camber bolts

Other Modifications: oil pressure gauge, fuel pressure gauge, boost gauge, 4 point seatbelt harness

Exterior: APR front carbon fiber splitter, carbon fiber hood and trunk, rota g force 18X9 ET30 wheels

any questions feel free to message me