I was reading a topic from about a month ago and ZS mentions
"All that said, though, if you had someone with the know-how to map in a variable vane turbo, you could fit the turbo and manafold off the new 1.7CDTi out of the Corsa D SRi - they're 125hp standard and basically the same lump only with the modern variable vane turbo. I'd recon you should get well over 140hp if you don't mind a little reek."
Im very interested! But how similar are these two engines, would the corsa exhaust manifold match up with the exhaust ports on the Isuzu engine? If so most of the other fitting would be pretty easy as its just modifying pipes and the exhaust to fit the Corsa manifold and Turbo.