Wanted to post this for all the naysayers.
2005 Saturn Ion Redline 2.0 liter LSJ with factory m62 supercharger and water/air intercooler.
The car came from the factory with 36 lb injectors and a 3.35" pulley . When I bought the car it had 50 lb. injectors and a 2.9" pulley. I bought 80 lb. injectors, a 2.7" pulley and a supercharger spacer.
Drove to the tuner with as little fuel in the tank as possible. We installed the injectors, he flashed a tune for the 80's on 93, then we drove to a gas station near there and I filled up on E85 as he flashed the E85 base tune. We did some driving, some pulls, etc. to get the tune set. I was also running water/methanol, so it wasn't a simple copy and paste from similar cars. Car was running near 100% duty cycle on the 50s, and is now much safer with a real tune and headroom.
Problems so far
Dead 02 sensor. Didn't look like it had been changed at 125K miles, so not worried.
Less MPG. 93 is 60-110 cents more per gallon depending on season, so not worried.
Stock fuel pump, stock lines, stock seals. Injectors rebuilt by Deatschwerks in OKC before installing. I changed the fuel filter after a few hundred miles, but only because I was "supposed to". Car runs good at anything off idle, and holds mid 10's to low 11's when near WOT.
2005 Saturn Ion Redline 2.0 liter LSJ with factory m62 supercharger and water/air intercooler.
The car came from the factory with 36 lb injectors and a 3.35" pulley . When I bought the car it had 50 lb. injectors and a 2.9" pulley. I bought 80 lb. injectors, a 2.7" pulley and a supercharger spacer.
Drove to the tuner with as little fuel in the tank as possible. We installed the injectors, he flashed a tune for the 80's on 93, then we drove to a gas station near there and I filled up on E85 as he flashed the E85 base tune. We did some driving, some pulls, etc. to get the tune set. I was also running water/methanol, so it wasn't a simple copy and paste from similar cars. Car was running near 100% duty cycle on the 50s, and is now much safer with a real tune and headroom.
Problems so far
Dead 02 sensor. Didn't look like it had been changed at 125K miles, so not worried.
Less MPG. 93 is 60-110 cents more per gallon depending on season, so not worried.
Stock fuel pump, stock lines, stock seals. Injectors rebuilt by Deatschwerks in OKC before installing. I changed the fuel filter after a few hundred miles, but only because I was "supposed to". Car runs good at anything off idle, and holds mid 10's to low 11's when near WOT.