Specs for CA18DE

1989Sentra · Jul 19th, 2002, 03:34 PM

I need to know the specs on the ca18DE(american version).

bahearn · Jul 19th, 2002, 04:41 PM

Buy the factory service manual.

barnoun · Jul 19th, 2002, 09:47 PM

FSM is way too expensive just to find out hp/torque figures.

1989Sentra · Jul 20th, 2002, 10:26 AM

Ok I found that the engine produces 125hp@6500rpm and 115ft/lbs@4500rpm. Now I'm trying to calculate how much overall speed this is in a b12 sentra. Anyone got any guesses?

barnoun · Jul 22nd, 2002, 12:27 PM

Depends on gearing, but how much does your b12 weigh? You can get a hp to weight ratio to get an idea as to how it'll perform. My B14 has a ratio of 23lbs. per hp, and it's damn slow. A BMW 325i has ratio of 18lbs per hp, and it's pretty quick. If you're b12 weighs 2200lbs(just a guess), that's a ratio of 17.6lbs per hp, which isn't bad at all.

bahearn · Jul 24th, 2002, 10:42 AM

Weight-to-horsepower ratio gives only a rough approximation of acceleration potential. Speed is strictly horsepower.

Both depend on gearing: transmission ratios, final drive ratio and overall ratio including tire.

Weight affects acceleration greatly but has almost no influence on speed.

There are at least two programs that can calculate 1/4-mile speed and ET with known weight, HP and gearing. I found this using Google:
http://www.nightrider.com/biketech/c...mulas_page.htm