Is it smart???

The original question here was "Is it smart?" as in smart to yank out a V8. My answer is whatever the owner decides to do is smart....for them. Turbocharging is nothing new. There have been both supercharged as well as turbocharged cars and trucks as far back as the 1920s. After all, turbocharging IS a form of supercharging. There are turbos on the market now that completely eliminate turbo lag.....that is, IF you make the right choice. There are many different size and type turbos. Some larger than others. The impeller weight as well as type of impeller shaft support directly effects how a given turbo will spool up. Choosing a small, light turbo with ball bearings for impeller shaft support, instead of bronze sintered bushings will result in unparalled turbo performance. The spool up on a properly chosen turbo is instantaneous, instead of having to "wait" for exhaust pressure to get the impeller spinning. I have a friend who has a 7.3 Power Stroke in an F350 who lives in Macon. That truck is in no way shape form or fashion stock anymore. Soon as he hits the starter, you can hear the turbo spinning at idle. Idling through the grocery store parking lot, his truck sounds like a jet airplane idling on a runway. Because the turbo is already spinning, it's ready johnny on the spot to create boost. Yes, buying a specific turbo to match a specific application will be more expensive, but in the end the result will be instant tire shredding torque. Turbocharging is just like anything else in hot rodding. A moderately sized unit will work much better than going all out with a jumbo sized gorilla turbo. In fact, the turbo on my buddy's Power Stroke makes the stock Garrett we removed look huge. Bigger is not always better. With a turbo, it all depends on vane size, shape and pitch, as well as overall impeller and shaft weight and support. And believe me, lighter is better. I would probably turbocharge my slant, however, I have already purchased pistons for a naturally aspirated build that will result in a compression ratio far too great at 9.6:1 for turbocharging and running on pump fuel. But for a low static compression ratio slant, I think it's a great idea.