Date: 18 Oct 2003 12:46:05 GMT
From: Adrian <>
Subject: Re: Adding turbo to non-turbo engine...

Grunff ( gurgled happily, sounding much like they were saying : >>>>Because the combustion space in the head has a larger volume? >>>Yes. The stroke is the same. >> Doesn't necessarily follow that the stroke being the same gives the >> same compression ratio. > No, it doesn't - but I was just stating that it is the same. True, but the block and head can be identical yet give different compression ratios according to the pistons or even the head gasket. >> Are the turbo blocks reinforced? > With what?? All the blocks are the same, cast steel. Internally, within the casting. I know that, for example, in Citroen CXs, the turbo block is quite heavily reinforced in the iron casting compared to the non-turbo. >> I'd have thought it easiest to lob an entire turbo engine in. > Not really - removing/refitting the head is a lot less work than > removing/refitting the whole engine. With the latter, you have > to disconnect/reconnect the driveshafts, clutch hydraulics, > coolant hoses, electrics and many other things which you just > wouldn't touch when swapping the head. Until you need to change the block anyway, after blowing it up... <grin> > And whichever you do, the turbo plumbing + control is additional > work anyway. Absolutely.

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