ruan
Post #1
Obviously there's a massive amount of info about using the SC kit - or even a turbocharger on an 10J4RS lump, never really heard much about doing it to the XU7 lumps? I'd have said* that they have a lot of advantages over the RS lump - lighter weight - being ally block, shorter stroke - more revvy, RS head fits on (I think... At least be made to flow as well...). I'm not well versed with the construction of these blocks, are they steel liner or literally an entire cast block with ally walls?! If so - can they not put up with quite the temperatures and pressures the XU10 can cope with? Is there a selection of forged items for these lumps - or even a company who'd make some if you asked nicely?Naturally you'll lose a few HP from the lack of displacement - no replacement for displacement and all that, but with the advantages of the shorter stroke, and reducing weight over the front end, you can surely make that up with the better handling etc? Obviously this will be a top end engine, shorter stroke reducing torque, but with forced induction of some description, you can surely get a large amount of the mid range back with a well set up head and good mapping?
*Disclaimer: I'm a dieselhead at heart, I know a bit about petrols, but a lot of my theory comes from diesel... If I'm wrong, please let me know.
Posted 6th Sep 2011 at 19:26
