LQ4 into a 3rd Gen/1972 Nova by frojoe

3 minute(s) of a 891 minute read

Had a little time off from the car, ended up going to Barrett-Jackson this past weekend as just a fun spectator thing to do.. holy crap, 1000's of cars all so nice, everything is so next-level big and grand and shiny.

I'm still waiting on Precision turbo exhaust flanges+clamps and Precision T3 inlet flanges, but I got other stuff in the meantime to occupy my energy...

I needed some proper hardware for the turbo piping, and thought stainless would be the right ticket. Naturally I wouldn't want just hardware store metric stuff, and opted for ARP just for added strength. I didn't realize that ARP 300 alloy stainless is 170,000psi yield strength which is actually higher than grade 8 bolts. Went with 6pt heads so I can access everything with an open-ended wrench in tight areas if need be.

Here are some M10x1.25 bolts for the turbo flanges...

M10x1.5 bolts for the flanges on the CTS-V exhaust manifolds...

Exhaust manifold studs for the heads...

Finally received the back-ordered 64mm Precision BOV... this thing is HUGE! Even the band clamp is black anodized aluminum.. nice!

And an EGT thermocouple to hardwire to the Dominator ecu, which also required a converter to create a 0-5V signal that the Dominator will accept.  

I plan to fully log one side of the turbo setup, basically:

1) pre-turbo exhaust temp (stainless K-type thermocouple)
2) pre-turbo exhaust pressure (stainless 3bar sensor after copper pigtail)
3) post-turbo pre-intercooler air pressure (additional sensor needed)
4) post-turbo pre-intercooler air temp (additional sensor needed)
5) post-turbo post-intercooler air pressure (intake MAP sensor)
6) post-turbo post-intercooler air temp (existing IAT sensor)