What about exhaust temps. How does one keep those in check ?
These old MHs have issues with ex temps already. I wonder if Turbo are designed to lower exhaust temps ?
On diesels, EGTs are very important. Not so on gas engines. Important yes but not as critical. The size of the turbine housing and hot side plumbing as well as what material they are made of should be considered the critical factors. Very high hp stuff and or very high duty cycle stuff should consider stainless headers, plumbing, etc. I used factory manifolds and stainless exhaust tubing, and my turbine housing is iconel. Also the exhaust valves should be of high quality and materials, again stainless or iconel if a large duty cycle is being considered. I watched a test on the Chevrolet 8.1 a long time ago, where they ran the engine on a dyno at full throttle, full load, at peak torque, for 250 HOURS STRAIGHT! That test can be found online if you’re interested, it was eye opening to say the least. There are similar tests available that Ford has done with the ecoboost engines. In the grand scheme of things 6-8 psi really is very little and increases the load on the engine not substantially. Most factory parts are designed with a margin of safety and reliability and will not be exceeded by simply adding low boost from turbocharging. I’ve recommended books before on here and I’ll do it again. Pick up ANY book written by Corky Bell, any book on turbocharging with relation to sizing and building a system there is lots of information to learn that most do not consider. https://www.amazon.com/dp/0837601606/?tag=fabo03-20
Start here.
