Not sure when the guy is going to get back to me about those brakes, maybe he decided not to sell them anymore. Anyway, it's been a long time since I posted an official update.
First thing I wanted to do was get the z06 bi-mode exhaust installed. The new X pipe and mufflers are full 3" from the header collectors back, instead of the old 2.5" with the Corsa. Old vs new X pipe:
New muffler on left, you can see the vacuum actuator which opens the valve for straight through mode:
To get the actuators to work on-demand I had to install a controller box in the rear bumper area, and route a vacuum line from the intake manifold. The homelink visor buttons which control garage doors operate on the same frequency, so I setup the middle button for quiet mode, and the third button for loud mode. When you open it up at a stoplight you can hear it get a lot deeper and rumbly.
Next up was painting the ugly gray aftermarket intake manifold. I wanted to paint it black for a stock/sleeper look. Before:
Got intake manifold off:
Intake apart:
Painting:
Installed:
Next up was the harmonic balancer. The car had a 25% underdrive pulley which I think was causing some weird issues, maybe with the alternator spinning slower. Also it was a solid metal pulley with no damping ability, so I went with a stock diameter ATI superdamper pulley. I got the old bolt out and was afraid I took out a piece of the crank, but it turns out it was just some loctite hardened:
I decided to pin the crank just as an added safety measure so the pulley would never spin or wobble. Since the crank is forged, this was a major PITA and took over an hour:
Lastly I decided to convert my car to E85. I installed a boost a pump because I was afraid I would max it out, plus a set of 880cc injectors. Out with old injectors:
In with the E85 today!
Car is running great so far, has a little trouble idling just because the fuel trims aren't quite right yet, but it cruises fine and will be driving up to Minneapolis on Monday morning to drop it off at the tuner. Really excited to see what kind of numbers it makes. I think the tuner will be doing mostly street tuning for driveability purposes, but I'm going to see if I can do a few dyno pulls later in the week just to see where it's at. I'll have to see if DB has an hour or so free for this.
Linear Mode
