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Old 06-16-2010, 02:03 AM   #1
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Default Power band?

In my car there seems to be a power band that starts right at 2000rpm, when driving normaly (say at 30% throttle) the car will pull normaly but once I hit 2000 it pulls noticable harder, and again at 2500rpm, the car will pull harder. (still at 30% throttle) and once it get'* past 3000 the engine seems to pull more evenly. Dident really notice untill I put the intake on though. Dont think the other 3800'* do this, so maby you LN3 people can help out, unless thats just the way the engine is lol
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Old 06-16-2010, 09:43 AM   #2
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Keep in mind your torque converter will lock up a bit before 2000 RPM. That could be what your feeling. The stock cam starts to hit it'* power curve around 2000, but really takes off about 3500-5000.
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Old 06-16-2010, 11:08 AM   #3
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Our torque converters do not lock up at low speeds. They do multipy torque at low rpm via the stator.

The peak torque in an LN3 is wayy low. That'* probably what you're feeling. Then after 2500 the torque steadily drops off till about 4500 or so.
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Old 06-16-2010, 01:44 PM   #4
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Quote:
Originally Posted by 95naSTA View Post
Our torque converters do not lock up at low speeds. They do multipy torque at low rpm via the stator.

The peak torque in an LN3 is wayy low. That'* probably what you're feeling. Then after 2500 the torque steadily drops off till about 4500 or so.
yeah thats another thing ive noticed, this engine has no top end lol
Ive been thinking about actualy lowering the shift points a bit, because it winds them allll the way out and it'* kinda pointless because once I get above 4500 the engine loses steam. just to keep it in the curve of power, because this engine has a good amout of toqure* just at low rpm as mentioned.
But thank you for the answer, I was just wondering if it'* normal or not.
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