![]() The thing is that some people aren't looking for huge numbers. 320-330whp sounds about right without any major major work. the twin turbo g37s are gettin 450+ whp on low boost and you can always tune and build the block and get insane hp numbers It depends how if you wanna stay n/a or FI, intake, plemum, headers, hfc, exhuast, reflash in the 370z should get you around the 320-330 whp range, but why waste the money on a bunch bolts on save your money and go twin turbo. Can you feel 30whp? definitely.ĭont get thrown off by those loud intakes which make it SOUND like you're going faster, while you may have even lost HP from a poorly designed intake.Ĭan anyone confirm how much WHP the G37 is making stock? SO can you feel 16WHP, probably just a little bit yeah if you are used to your car and know exactly what it feels like. As expected, COBB stage 2 makes about 295-300WHP. I do believe COBB, their accessport can do great things so I wouldnt be all that surprised to see a 16whp gain from their software. 5whp+10whp isnt going to be 15whp, may be less, may be more. You cant just add up what other people are getting for WHP from these parts either. The only real way to tell what your car is making is to actually test it, you cant just add up what the aftermarket manufacturers say you will get and then claim thats what you have. Exhausts will maybe free up another 10WHP, maybe 15-20WHP with good headers. ![]() Mods such as intakes, will NOT, in reality get you much more than maybe a 5WHP gain. Another thing to take into account is that non-turbo (naturally aspirated or N/A) cars don't generally make that much power from these basic modifications. I have no idea how much the G37's are making stock at the wheels, but I assume they will loose a bit more power than the 370Z will through their transmission as the Z has lighter, more focused materials such as that carbon fiber driveshaft. Most likely a lot closer to that 285rwhp number. I have no idea how much WHP a stock 370Z will make, but most likely, following the 8-15% rule, it will make somewhere around 285-300 rear wheel HP. In fact Subaru advertises 300HP from the factory, while in reality, if measured on a dyno, the car only actually makes 220-235WHP stock. The transmission is much simpler than it would be on an AWD car which in the case of say, a Subaru WRX STI, can be as much as 20-23% of the engine HP. Now, because this is a rear wheel drive car instead of say, an all wheel drive car, the loss in the transmission may be as low as 8-15%. The more inertia the engine has to overcome, the less power will actually make it through, thats why 19" wheels will rob you of more power than the same exact wheel in its 18" variety. Remember that to get this "engine" horsepower down to the ground and move the car you have to transfer it through a series of gears (transmission) and then whatever manages not to get lost in the transmission has to make the wheels spin in order to thrust you forward. ![]() Unless you are talking to someone who is really in the know (to whom HP means WHP) then simply "hp" means break horsepower, or the actual horsepower that the ENGINE is producing. Another rookie question, does 16 more HP make a huge difference in day to day maneuvering, or is this something that "the track guys" do?įor you rookie guys, be careful when a manufacturer advertises 16hp versus 16 wheel hp (whp) They are far from the same thing.
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