airfuel2001

07-10-07, 11:53 PM

Factory rating is 300hp, but this being said:

Our trannies use up about 23% of the power the motor is putting out.

So 300hp net with a 23% drivetrain loss is 231whp, correct? How many here have dyno'd 231whp on a dyno without any modifications of any sort? I have done some research and see that number is being achieved with mods like induction and exhaust, but not factory stock.

The original N* was rated 275hp so ~211whp, which seems more realistic assuming about 20whp is being gained from induction and exhaust mods = 231whp (which should have been the factory number).

So question is was the 25hp added to the newer N* real, or was it just for print? I would like to see dyno sheets for all N* if you have any, both 275hp version and 300hp version. Or if anyone has more details to this I have overlooked, I am open ears (or eyes in this case:bouncy:) Thanks for any input or opinions.

Links to some of my research:

http://www.cadillacforums.com/forums/northstar-performance-technical-discussion/100904-few-numbers.html?highlight=dyno (and with more smoothing that would have showed even less)

http://www.cadillacforums.com/forums/northstar-performance-technical-discussion/75675-so-i-put-my-sled-dyno.html?highlight=dyno

I would expect an L37 to put down 210 or so...

Hot Rod did a dyno test of a stock 300 HP mid-90's Eldorado a few years ago, and it put out around 216 HP or so.

Which is exactly in line with my 275hp theory?

Our trannies use up about 23% of the power the motor is putting out.

So 300hp net with a 23% drivetrain loss is 231whp, correct? How many here have dyno'd 231whp on a dyno without any modifications of any sort? I have done some research and see that number is being achieved with mods like induction and exhaust, but not factory stock.

The original N* was rated 275hp so ~211whp, which seems more realistic assuming about 20whp is being gained from induction and exhaust mods = 231whp (which should have been the factory number).

So question is was the 25hp added to the newer N* real, or was it just for print? I would like to see dyno sheets for all N* if you have any, both 275hp version and 300hp version. Or if anyone has more details to this I have overlooked, I am open ears (or eyes in this case:bouncy:) Thanks for any input or opinions.

Links to some of my research:

http://www.cadillacforums.com/forums/northstar-performance-technical-discussion/100904-few-numbers.html?highlight=dyno (and with more smoothing that would have showed even less)

http://www.cadillacforums.com/forums/northstar-performance-technical-discussion/75675-so-i-put-my-sled-dyno.html?highlight=dyno

I would expect an L37 to put down 210 or so...

Hot Rod did a dyno test of a stock 300 HP mid-90's Eldorado a few years ago, and it put out around 216 HP or so.

Which is exactly in line with my 275hp theory?