M3 GT Twin Turbo
Posted: 15 Sep 2011, 14:44
Hi, sorry for the English, just felt like sharing this with you experts and get some feedback/input.
Im currently having the S50B30 Motor rebuilt again with forged internals after a total engine loss during tuning.
The car is a 1995 E36 M3 GT #111
The spec this time around will be the follwing (nothing ground braking here)
Engine:
Engine will be a 3.0L S50B30/32 single Vanos HYBRID
S50B32 Engine block bored to 86.5
Forged CP pistons in 8.5:1 (S50B30 trim)
Forged rods from Jaws Motorsport (re-use from last build) also S50B30
VAC motorsport coated cranshaft bearings
BMW Motorsport rod bearings
ARP rod-bolts
OEM headgasket
ARP2000 headstuds (re-use from last build)
S50B32 cylinder head
264°camshafts from the original GT head
Single Vanos from the GT Engine.
FI System:
Twin manifolds made by Jaws Motorsport (ceramic coated)
2x Garrett GT2252 internally wastegated
OEM intake manifold modified for FI in the traditional way
RC 750cc injectors
Walbro 255 in-tank pump
Adjustable FuelPressureRegulator
ECU and Monitoring:
VEMS standalone with full VANOS capabilities
-Launch Control, Flashift, datalogging and other nice stuff (http://www.vems.hu)
Zeitronix wideband:
2x EGT probes, 2x backpressure monitors, Bost/AFR/Lambda and the usual stuff
Other mods on the car are among others:
Suspention:
H/R coilovers and adjustable swaybars
Powerflex bushes
Intrax adjustable camber/caster
Brakes
370mmx38mm Ceramic disks up front with 8piston brembo calipers
E46 M3 rear calipers with drilled disks
Clutch and drivetrain:
Sachs/OMP 6puck clutch
JB-Racing flywheel
2.93 final drive
Interior
Semi stripped interior with a HEIGO halfcage
Recaro PolePosition seats
Schroth 3" harness
Momo wheel
Exhaust
Supersprint De-Cat
Superspring muffler
Car was making about 470hp/560nm at 14psi before. Expectations this time around will be to run it at 18psi maximum making 550hp and 650nm max. The car is a daily driver/trackday car so maximum HP is not the goal, but rather driveable/linear power and usability.
Here are some pix of the current rebuild:
hopefully I will have some more updates in about 2 weeks time, it would be nice to get yoru input
on this, there is a lot of knowledge in this forum.
Svenni,
Im currently having the S50B30 Motor rebuilt again with forged internals after a total engine loss during tuning.
The car is a 1995 E36 M3 GT #111
The spec this time around will be the follwing (nothing ground braking here)
Engine:
Engine will be a 3.0L S50B30/32 single Vanos HYBRID
S50B32 Engine block bored to 86.5
Forged CP pistons in 8.5:1 (S50B30 trim)
Forged rods from Jaws Motorsport (re-use from last build) also S50B30
VAC motorsport coated cranshaft bearings
BMW Motorsport rod bearings
ARP rod-bolts
OEM headgasket
ARP2000 headstuds (re-use from last build)
S50B32 cylinder head
264°camshafts from the original GT head
Single Vanos from the GT Engine.
FI System:
Twin manifolds made by Jaws Motorsport (ceramic coated)
2x Garrett GT2252 internally wastegated
OEM intake manifold modified for FI in the traditional way
RC 750cc injectors
Walbro 255 in-tank pump
Adjustable FuelPressureRegulator
ECU and Monitoring:
VEMS standalone with full VANOS capabilities
-Launch Control, Flashift, datalogging and other nice stuff (http://www.vems.hu)
Zeitronix wideband:
2x EGT probes, 2x backpressure monitors, Bost/AFR/Lambda and the usual stuff
Other mods on the car are among others:
Suspention:
H/R coilovers and adjustable swaybars
Powerflex bushes
Intrax adjustable camber/caster
Brakes
370mmx38mm Ceramic disks up front with 8piston brembo calipers
E46 M3 rear calipers with drilled disks
Clutch and drivetrain:
Sachs/OMP 6puck clutch
JB-Racing flywheel
2.93 final drive
Interior
Semi stripped interior with a HEIGO halfcage
Recaro PolePosition seats
Schroth 3" harness
Momo wheel
Exhaust
Supersprint De-Cat
Superspring muffler
Car was making about 470hp/560nm at 14psi before. Expectations this time around will be to run it at 18psi maximum making 550hp and 650nm max. The car is a daily driver/trackday car so maximum HP is not the goal, but rather driveable/linear power and usability.
Here are some pix of the current rebuild:
hopefully I will have some more updates in about 2 weeks time, it would be nice to get yoru input
on this, there is a lot of knowledge in this forum.
Svenni,