Pontiac Solstice Forum - View Single Post

Quote:

Originally Posted by EcoBoost

I'm with shabby on this one. The thermal cycling, vibration, and turbocharger weight conspire to always kill thin-wall tubular turbo manifolds in street applications.

Even on race cars, tubular manifolds are considered temporary. Back in the day, when F1 cars were turbocharged, the engineers insisted on thinwall tubular headers so as to impart the greatest exhaust heat energy to the turbine, thus achieving optimal response time off corners. Lifespan of one tubular header set? One race.

So are you recommending staying with the "bar" style OEM manifold? I'm new to Turbocharging applications and had been looking for an upgrade in this department after reading a few books on the subject.

	joshmass Member Join Date: Apr 2008	Quote: Originally Posted by EcoBoost I'm with shabby on this one. The thermal cycling, vibration, and turbocharger weight conspire to always kill thin-wall tubular turbo manifolds in street applications. Even on race cars, tubular manifolds are considered temporary. Back in the day, when F1 cars were turbocharged, the engineers insisted on thinwall tubular headers so as to impart the greatest exhaust heat energy to the turbine, thus achieving optimal response time off corners. Lifespan of one tubular header set? One race. So are you recommending staying with the "bar" style OEM manifold? I'm new to Turbocharging applications and had been looking for an upgrade in this department after reading a few books on the subject.