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Old 10-12-2011, 09:05 PM
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xb-60 xb-60 is offline
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Join Date: Aug 2009
Location: Adelaide, SA
Cobra Make, Engine: AP 289FIA 'English' spec.
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Quote:
Originally Posted by zrayr View Post
I routinely shift at 6,500 to 7,000 rpm. The engine is an essentially stock 289 Hi-Po K code. It is a flat tappet engine, with a stock Hi-Po cam. There is no grumpiness at any rpm, idles fine at 900 and is smooth to 7,000+ rpm. In a nine year time span I've got over 45,000 miles on the engine. Seems very durable to me. With good lubrication, meaning an oil with plenty of zinc, there are no issues with cam or lifter wear. Been using Mobil 1 15w-50 the entire 9 years.

Z.
Z - can I buy your engine?

Brent - what is different here that enables this engine to do what Z describes, and do what I want an engine to do?
The way I see it, if I want an engine that revs (but behaves at low revs as well) I need to start with a smallish engine, use good (light, balanced) gear for the rotating bits, and not go 'I need more power/more cubes'.
But I'm definitely not the expert here, so tell me where I'm going wrong in my thinking.
Cheers!
Glen
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