Quote:
With a NA engine there is some power loss. This can be evened out by using a timing advance processor to advance teh timing. Higher CR would be better but would cause issues with petrol.
Turbo engine don't have the issue
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Thank you 'classic' that makes some sense to me... I think. But even with a turbo upping the charge, each cycle, it's doing that with petrol too, so because the engine has to be set-up to manage the lower octane petrol, the problem still hasn't gone away, it's just been eased? What have I missed? I'm guessing in a turbo set-up, you 'could' up the boost under LPG/CNG thus effectively upping the CR thru' other means. Do I have htis right? If so, do most cars allow you to do this?
On my NA car I do have a small drop-off, in peak power and torque, which I would expect, yet it's only noticeable if I press-on in a licence-losing style so frankly I'm not bothered.
And 'Mr Jones' has a set-up (rightly or wrongly) to negate the perceived issue. How should it be set?