We designed these adapters that utilize an O-ring to seal against the EGR port and thread for a -6AN ORB fitting.
Then we had the adapters machined.
We used Brown and Miller Racing Solutions (BMRS) PTFE hose for our vacuum line. This is the same company and hose that’s used in most endurance racing sports cars, prototypes, Indycars, and NASCAR.
The flat aluminum strip and silicone that blocked off the EGR port for years desperately needed to be replaced.
The new billet aluminum bracket with integrated o-ring and -6AN fitting to supply our brake booster with vacuum looks far better and now has a functional purpose. However, the lower EGR blockoff plate is still 1/8” sheet aluminum and needs to be addressed
With the blockoff plate removed, we went to designing a proper billet plate with an integrated o-ring to seal the exhaust port.
8 comments
Very clean installation.
I like it when modifications are thoroughly thought out.
Any plans to replace the fuel rail crossover hose? Those get nice and crispy after 30 years of use.
Yes, the entire fuel system is going to be replaced and upgraded in a future article. Stay tuned!
This project is heating up! Excellent work and execution. I can’t wait for the next update.
So sick, bro.
I’d love to see an article about DBW and throttle mapping!
We could do that; there is a lot of information on HPAcademy.com though.
Not that it is necessary with forced induction here, but wouldn’t independent throttle bodies eliminate the space issue entirely? Gorgeous work either way.
While ITBs would eliminate space issues, it will cost (depending on which brand ITBs) $10K – $15K – $20K or more to have a DBW ITB setup with a custom plenum for forced induction. Our solution of cutting the stock intake manifold, making a billet adapter plate and used Mustang throttle body was around $500.