Here’s the latest reader question, along with my reply!
Peter asks: I understand your point (about turbocharged small engines). However, if one were to put a turbo on the V8 in the Tahoe would that improve mpg? And, have you written an article about the new GM 4 cylinder engine for the Cadillac Xt4 & 2019 Blazer? I believe they are turbo charged? Cheers!
My reply: The only reason to add a turbocharger to a V8 would be to increase the power of an already powerful engine. This – historically – is precisely what turbos were used for. To add power – not make up for lost displacement, which is what turbos are being used for now.
If you turbocharged the Tahoe’s V8, you’d have 400-plus horsepower (under boost) and the temptation to use it would be great – and if you did use it, you’d get worse mileage!
On the XT4 and Blazer: I haven’t sneaked into either yet; it takes some skullduggery because GM revoked my press car privileges after I wrote an article mocking their obsession with race and sexual proclivities!
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Got a question about cars – or anything else? Click on the “ask Eric” link and send ’em in!
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