hey everyone I have a question about horsepower I know there are some smart people on this site so my question is how does infiniti manage to get 348 horsepower out of the 3.7 in the IPL and not on the g37x or g37 my thinking is the programming on the engine computer any taught... am looking to gain some cheap horsepower thanks

 

Tune and exhaust for hp and stiffer suspension.

 

you can get just as much or more with a motordyne m370 intake manifold, catback exhaust, possibly an intake.

 

Keep in mind that is at the crank, not the wheels. Ostensibly, the g37 gets 330hp at the crank.

 

Horsepower figures are manufacturers "estimated" engine HP ratings. There is a LOT of room for manipulation for them to make that figure what they want it to be. It's not regulated and there's no standard. They could rate it at 450 HP if they chose. Some makers estimate higher than actual numbers, some lower. Just like Ferrari uses bogey cars for automotive journalists to test that have significantly better handling and power than the cars they sell customers. Because Ferrari.

Infiniti launched the IPL with a body kit and a few mysterious extra HP. Possibly a slightly better ECU map and freer flowing exhaust.

Have you ever seen an actual dyno chart from a brand new IPL and a brand new regular G side by side? Me neither.

 

you guys are right about flywheel horsepower and wheel horsepower an aftermarket intake songs good good thing is there is a lot of makers out there the price is another think I guess you get what you pay for good deal guys