The Twin Turbo Nova Project

Progress on the Engine/Trans install So I had been waiting since January for the Control Module to arrive (ECU, FPPM, Harnesses, Pedal, Sensors, etc). I finally received that last week, and quickly got to installing it. The installation went quite well. I was able to route the harness in such a way that it is mostly hidden, with a super clean look on the visible connectors. After I got all of the engine connectors hooked up, I needed to fit a rather large bulk of wires through the firewall. So I pulled out the heater block-off plate we had fabricated previously and modified it with a few holes for some large grommets to pass through. I also mounted the FPPM (fuel pump pressure module) to the firewall just above the block-off plate. The ECU did not have any mounting options available, no holes, brackets, anything. I wanted to mount it on the trans tunnel, under what will eventually be the 10.5" touchscreen in the center console. So I cut up what was left of the top of my welding be

So, I have done a lot of changes over the past 8 months.... In December, I started building new stainless turbo manifolds to replace the 10 year old ones we build that had been suffering from cracking issues.

So, previously I acquired a pair of billet 72mm turbos to replace the cast 67mm ones that died. Teardown of the 67's The Teardown: Teardown of the 67mm turbos showed that the passenger's side turbo was oil starved. Upon closer inspection, I realized that the oil feed adaptors I was using were actually oil restrictors. On top of that, the passenger's side one was clogged with only about 25-30% of the oil flow able to get through. I believe the source of that clog was from when my Fram oil filter came apart and sent parts of the paper element throughout the entire motor. So I am actually pretty impressed that the turbo lasted as long as it did. Most of the damage was to the bushings within the turbos, which ended up depositing most of the material onto the turbine shaft. The Rebuild: I wanted to save these turbos, as we are building a turbo LM7 to put into dad's 67 cutlass. So first was to see if we could get the turbine shaft back into spec. First step was to mic out the

There have been a few updates we've made to the car recently that are turning out pretty nice.  First off, while driving home from a friend's house, I noticed a bit of a whine that only occurred under load. Along with this whine, I noticed that the car was not making much boost at all. Once I got home, I inspected the turbos to find this: The turbos we bought 7 years ago have decided to sacrifice their bearings to the gods. These were just cheap turbos we got off of eBay, and I really only expected to get ~10k miles out of them. Sadly, they made it about 2,500 miles before giving me the finger. So, I'll introduce you to the latest addition to our family: twin VS Racing billet 72/65's! These new turbos are configured a bit differently than the old ones. Despite having a larger compressor, I configured them with smaller exhaust housings. The old turbos were ar .86, these new ones are ar .68. This should bring a noticeable reduction in turbo lag.  There is quite a differen