turbokinetic
Member
- Joined
- Jan 29, 2008
Hi guys! Today I started on a really good project. A friend has tasked me with giving his LeSabre Grand National (LGN) a real, worthy-of-name, boosted engine. I'm sharing this thread on a couple other forums so if it looks familiar that's why!
The car is awesome looking. It is black, it is 2-door, and it has all the shiney stuff GM puts on the Grand Nationals. GM built about 117 of these to qualify the LeSabre Coupe for NASCAR. The back end and rear windows are modified for aerodynamics. Otherwise it's just a base LeSabre Coupe.
This is a "low cost" build. The owner wants a daily driver, not a race car. He has a Regal GN, and a Turbo Trans Am both of which are very compenent race cars. His LGN is to be a daily driver. So, the car needs to keep all its features.
-ECM swap and 3-bar Code59 tune.
-Turbo / intercooler build.
-Full gauges cluster swap.
The LG3 has a very low-tech ECM and unreliable MAF meter. This has to go. First, I am converting the engine control system to a 1227730 ECM. This is the same one the later 2.8 and 3.1 engines have. It has many more functions, including boost control and MAP based (speed density) fuel control. No more MAF with all its drivability issues.
Today I installed the new ECM and re-pinned the harness. Hope to get the baseline N/A starter tune done tomorrow. Then it's time to start on the turbo system build.
Modification pictures forthcoming!
David
The car is awesome looking. It is black, it is 2-door, and it has all the shiney stuff GM puts on the Grand Nationals. GM built about 117 of these to qualify the LeSabre Coupe for NASCAR. The back end and rear windows are modified for aerodynamics. Otherwise it's just a base LeSabre Coupe.
This is a "low cost" build. The owner wants a daily driver, not a race car. He has a Regal GN, and a Turbo Trans Am both of which are very compenent race cars. His LGN is to be a daily driver. So, the car needs to keep all its features.
-ECM swap and 3-bar Code59 tune.
-Turbo / intercooler build.
-Full gauges cluster swap.
The LG3 has a very low-tech ECM and unreliable MAF meter. This has to go. First, I am converting the engine control system to a 1227730 ECM. This is the same one the later 2.8 and 3.1 engines have. It has many more functions, including boost control and MAP based (speed density) fuel control. No more MAF with all its drivability issues.
Today I installed the new ECM and re-pinned the harness. Hope to get the baseline N/A starter tune done tomorrow. Then it's time to start on the turbo system build.
Modification pictures forthcoming!
David