Jan 15, 2003 · Most of the stock automobile engines are designed to operate from idle to 4500 RPM. The original volume and pressure oil pump will work fine in this type of application. As the demands on the engine increase so does the demands on the oiling system and pump.
This was a genuine 820hp BBC that ran on pump gas. But as years passed he often wished he could've made more torque with less RPM because real street cars shouldn't need to rev above 6,500rpm. Mike was sure that what kept him from achieving his high-torque, low-rpm goals, without resorting to boost, was the lack of a capable cylinder head.
The power rating of the engines indicated in this document measures the net power output at 3600 rpm (7000 rpm for model GXH50, GXV50, GX25 and GX35) and net torque at 2500 rpm, as tested on a production engine. Mass production engines may vary from this value.
Turned engine off, waited 3 minutes, then turned engine ON. RPM fluctuated from ~800 RMP to ~1.5K RPM and when the RPM dropped down to the 800 range it felt like the motor was misfiring. Has anybody had this experience before?
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OK guys and gals, I have a '02 Dakota 3.9 (65,000 km)and my oil pressure is up and down I know that when your on the gas, it raises a little but this is up to the the line before the max out line and when your off the gas is drops back down. At about 1000 rpm is seems fine. I checked the oil...
These are what I would consider to be high performance engines. Now if you want something for sled pulling or drag racing, that’s a different story. We can build a 14L Detroit to 1,950 hp at 2,800 rpm (2,800 rpm is currently the limit because once over that the rocker arms will snap).