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Brommers
Having reviewed the valve-train and so forth we'll be setting the limit at 7,500 - the engine won't survive above that for long.
The next question is capacity - 3.7 or 3.9 litres.
The 3.7 is over-square, and was my preferred route before we knew where to put a sensible rev limit, but now that we're going to spin it to 7.5k max I'm wondering whether it wouldn't be better to increase the stroke as well as the bore diameter and come in at just under four litres.
Input welcome!
Cams continue to be a pain in the arse- no source of blanks can be found.
We could use billet, but whilst that's fine for race engines we're deeply uncertain about suitability for a road engine in terms of wear.
Spendy, also.
In terms of management I think we'll go with either the stock system or Syvecs - the latter would mean we can tune on the engine dyno, which is obviously preferable, but again - £!