The final test was to replace the truck intake with the Fast LSXR intake combo. This netted another increase in power, from 661 hp to 677 hp, while the peak torque jumped from 690 lb-ft to 708 lb ...

The Alfa Romeo Brera is beautiful—but can the turbo 4-cylinder be made faster than the legendary V6? We’re taking on the ...

On the turbo side, we were unsuccessful in our first attempt to test the Hellion system. It had nothing to do with the system itself and more to do with insufficient valvespring pressure.

We dyno test Borg Warner’s S475 and S480 turbochargers on a 6-liter LS and discover the nuances of power, torque, boost, back-pressure, and drivability.

Engine dyno test of Hooker’s GM LS Engine Turbo Exhaust Manifolds. ... For this test, we upgraded the intake to a TrailBlazer SS ... which resulted in a maximum pressure of 10.7 psi at the power ...

1985 Saab 900 Turbo Test: ... With two 32.0 mm-diameter intake valves and two 29.0 mm exhaust valves per cylinder, ... the sixteen-valve engine's peak boost pressure was raised to 10.9 psi ...

He then handed over the keys of his personal car, which I was to take to the BMW test track. It's the only place where the Turbo could be extended in this period of blanket speed limits, though we ...

From the October 1977 issue of Car and Driver. You can't trust car companies these days. Some of them have absolutely no re­spect for tradition. The subject of this road test is a perfect case in ...

Back now to measurement. To see how well the exhaust on your car flows, all you need to do is to temporarily plumb a pressure gauge to the front of the exhaust. Any normal pressure gauge (including a ...

The new engine formula will reduce intake manifold pressure to 37 inches in 2001, a decrease of approximately 50-60 horsepower, and then a drop to 34 inches of boost will take place in 2002 ...

CRC Industries, Inc. announced it will launch its CRC GDI IVD® Intake Valve & Turbo Cleaner at the upcoming 2016 AAPEX and SEMA ... Testing on turbocharged engines yields excellent results.

The no-replacement-for-displacement die-hards aren't all wrong about turbo tech; it isn’t flawless. But there is one interesting fix for some of its problems, and it is the twin-scroll turbocharger.