19BLACKGST98
15+ Year Contributor
- 711
- 3
- Nov 6, 2003
-
McKinney,
Texas
Like the title says somthing just isn't meshing right with my car. Last July one of my forged pistons grenaded on me so I had another motor built with forged internals. Before the old built engine blew I was making 402whp. That was with a stock Intake manifold, stock exhaust manifold, big greddy FMIC on 93 oct.
Since the motor was getting built again I decided to add a few upgrades this is the updated list of all that is done:
(this set up produced 47 more whp Total: 449whp on 93oct + meth injection)
EDIT: All things marked in RED are upgrades since the last built engine.
1998 GST Mods:
Engine Mods-
Balance Shaft Eliminator kit
Gasket matched ported 2g head (with casting marks smoothed out)
FP2 cams
Adjustable Cam Gears
NGK plug wires and plugs
Crower Rods
Wiseco forged pistons (8.5:1)
FP3052 Turbo
Devils Own Meth injection kit: 2 DO10 Nozzles, 150psi Pump 70/30 mix (meth/water)
Energy suspention Poly motor mount inserts for the lower mounts. New oem mounts for the sides.
Tranny Mods-
TRE Stage 2.5 Transmission (LSD Insert)
ACT 2600 with sprung 6 puck (had street disk before new motor)
Fidanza light weight flywheel
SS Braided Clutch Line
Fuel System Mods-
KeyDiver dual image chip w/ socketed Eprom ECU
780cc Injectors
Walbro 255lph HP Fuel Pump (rewired)
Innavative wide band O2
Aeromotive AFPR
Intake Mods-
Dejon Tool 4" Intake pipe w/ filter
3" GM MAF with MAF-T (in the intake pipe not blow threw)
JM Fab intake manifold
75mm Throttle body
Huge custom FMIC w/ 3" upper pipe, 2.5" lower(replaced the big greddy kit)
HKS SSQV BOV
Greddy Profec b Spec II electronic boost controller
Exhaust Mods-
FP Exhaust Manifold w/ SS FP etched cover
SS Exhaust studs
FP SS 2.5" O2 housing
44mm Tail WG
3" N1 downpipe and exhaust (all restrictions removed with straight pipe added in there spots)
Suspension Mods-
Eiboch springs lower 1.5 inch's
Koni Yellows all around
Camber kit
Front strut tower brace
15" Drag brand 5 spoke rims in the front with Mickey Thompson DR's on them (26" tall)
Car is running terrible times at the track. I hope its just because the tranny doesnt quite feel broken in yet. I feel like I lose everything between shifts .
Any Ideas....anything look out of place or anything that I really need that I dont have?
EDIT: All things marked in RED are upgrades since the last built engine.
I also forgot to mention that before all of the recent upgrades I use to hit full boost by 4,000 rpms and now I dont hit full boost till 4,700 - 4,800 rpms. Do I just need a bigger turbo to justify all of the extra airflow mods?(3" upper pipe, smim with 75mm tb, fp race mani)
Since the motor was getting built again I decided to add a few upgrades this is the updated list of all that is done:
(this set up produced 47 more whp Total: 449whp on 93oct + meth injection)
EDIT: All things marked in RED are upgrades since the last built engine.
1998 GST Mods:
Engine Mods-
Balance Shaft Eliminator kit
Gasket matched ported 2g head (with casting marks smoothed out)
FP2 cams
Adjustable Cam Gears
NGK plug wires and plugs
Crower Rods
Wiseco forged pistons (8.5:1)
FP3052 Turbo
Devils Own Meth injection kit: 2 DO10 Nozzles, 150psi Pump 70/30 mix (meth/water)
Energy suspention Poly motor mount inserts for the lower mounts. New oem mounts for the sides.
Tranny Mods-
TRE Stage 2.5 Transmission (LSD Insert)
ACT 2600 with sprung 6 puck (had street disk before new motor)
Fidanza light weight flywheel
SS Braided Clutch Line
Fuel System Mods-
KeyDiver dual image chip w/ socketed Eprom ECU
780cc Injectors
Walbro 255lph HP Fuel Pump (rewired)
Innavative wide band O2
Aeromotive AFPR
Intake Mods-
Dejon Tool 4" Intake pipe w/ filter
3" GM MAF with MAF-T (in the intake pipe not blow threw)
JM Fab intake manifold
75mm Throttle body
Huge custom FMIC w/ 3" upper pipe, 2.5" lower(replaced the big greddy kit)
HKS SSQV BOV
Greddy Profec b Spec II electronic boost controller
Exhaust Mods-
FP Exhaust Manifold w/ SS FP etched cover
SS Exhaust studs
FP SS 2.5" O2 housing
44mm Tail WG
3" N1 downpipe and exhaust (all restrictions removed with straight pipe added in there spots)
Suspension Mods-
Eiboch springs lower 1.5 inch's
Koni Yellows all around
Camber kit
Front strut tower brace
15" Drag brand 5 spoke rims in the front with Mickey Thompson DR's on them (26" tall)
Car is running terrible times at the track. I hope its just because the tranny doesnt quite feel broken in yet. I feel like I lose everything between shifts .
Any Ideas....anything look out of place or anything that I really need that I dont have?
EDIT: All things marked in RED are upgrades since the last built engine.
I also forgot to mention that before all of the recent upgrades I use to hit full boost by 4,000 rpms and now I dont hit full boost till 4,700 - 4,800 rpms. Do I just need a bigger turbo to justify all of the extra airflow mods?(3" upper pipe, smim with 75mm tb, fp race mani)