ENGINE
3.8L SFI V6 High
Output: 250 hp @ 4400 rpm, 340 lbs-ft torque @ 2800 rpm; electronic
sequential fuel injection; tuned aluminium intake manifold; specific
cylinder heads; roller valve lifters; cross-drilled crankshaft; Direct
Fire Ignition with electronic spark control; Garrett T3 turbocharger
with electronic wastegate control; streamlined tubular stainless steel
exhaust manifolds and special high-efficiency intercooler. |
TRANSMISSION
Specially calibrated
4-speed automatic, with performance-optimized shift points. |
| Note:
According to GM information above the engine had roller valve
lifters which is not the case on the production cars. |
|
My TTA have had some modifications / upgrades
done to it by the previous owners (have most of the receipts), this is what I
found out so far :
The motor had a high-performance rebuild done on it at
approximately
50.000 miles and included the following
- Forged Pistons
- Polished rods
- ARP rod bolts
- Porting / Polishing of the heads
- Hydraulic Lifters (4/04/94)
- Cam 211/20/-109 (4/04/94)
- Valve Springs (4/06/94)
- Injectors 42.5 LB/HR @45 PSI (4/12/95)
- Strip Chip WOT Lockup 42.5 LB (4/12/95) (Not used at the moment)
- Throttle Body Bypass (11/16/93)
- Valve Cover Vent Kit (11/16/93) (small K&N)
- Machined Aluminium Turbo Inlet Bell
- Turbo Vent Tube Removed
- Transmission built up with heavy duty parts and an 2500 stall converter
(12/03/93)
- Transmission Shift Kit (Lock-Up) (6/02/94)
- Under Drive Pulleys (11/19/93) (Not used at the moment)
- K&N Air Filter
- Extra High Performance Fuel Pump
- Adj Fuel Pressure
- Fuel Pressuare Gauge
- Adj Wastegate Actuator
- MAF Pipe 3" Black Finish (Not used anymore)
- Plenum Spacer 1/2" thick (Replaced with a Air Distribution Plate, see
below)
- TurboLink Software Version 2.13
The above done by the second owner, the previous
owner added this end of 1999
- High Performance Cam (comp cams 206)
- Lifters
- Valve Springs
- Double Roller Timing Chain Set
- High Volume Oil Pump
- Precision check valve (replaces the PCV valve, not used for some reason?)
- 3" Exhaust with stainless steel muffler replaced 1999
- Terry Houston Down pipe
- Cat replaced with test pipe
- Engine tie down strap (replaced, see below)
- Jay Carter Street Chip
- Transmission Oil Cooler
- Intercooler Replacement Hoses (longer, stronger)
This is what I've done since I bought the TTA :
- Transmission Oil Pan Replaced (28/04/01)
- Transmission Rebuild, new clutches and bands Raybestos (29/06/01)
- New MAF Pipe
(click
for picture) (01/07/01)
- New Engine Anchor
(click
for picture) (01/07/01)
- New Turbo Vacuum Valve and Boost Line Kit (27/10/01)
- New 02-sensor
- Both Front Seats Re-Upholstered in OEM style leather (28/10/01)
- New Front Break Rotors, Bearings, Pads (04/11/01)
-
Airflow Distribution Power Plate (29/03/02)
- New Rear Shocks (01/04/02)
- New Front Shocks
- Steel Braided Brake Lines
- New Lightweight Starter
- New Rear Rotors and Pads
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