Gr8nbed11

OK, theres this guy where I work that thinks his Z4 2.5 (MT) can beet my S2000. The only mods I have are 4.77's and a K&N air filter. This guy is saying that he bought a chip for his BMW that gave him 75 hp and 18 ft/lbs. Does that sound a little outragous to anyone else or it just me. I would race him immediately but my car is still being shipped and I won't get it for another 2 months. I gotta go.

JonBoy

A chip that gives him 30% more power (roughly) but just a bit more torque? I think the two would increase about the same, so I'm doubting it based on numbers comparison alone.

I don't know what Dinan can do with the new Z4s (or Hamann or whatever) but I'm doubting that a single chip will do that much for that motor. BMW didn't leave THAT much room for improvement without adding I/H/E (at a minimum) along with a chip.

Dr. WOT

Yup JonBoy, I'm raising the BS flag on the chip. BMW engines are pretty well tuned from the factory, and to go a step further there is no modern NA motor that will gain that much from a chip alone. If there was a chip that even made a fraction of that power, it would probably destroy the fuel economy, power curve, and idle in favor of a few peak hp.

Stock for stock it would probably be a race, but with the 4.77 you should be able to take him, even with the superchip.

DVDoughboy

I don't think stock for stock would be a race. The S2000 should kill a 2.5 Z4.
It would be a better race with the 3.0L Z4 MT.

steve c

There is no chip that gives that much horsepower.

They should be dead even, with the driver deciding the winner.

FooF

he has 4.77, it wouldn't be close to dead even

PortugueseS2K

Not with the lousy 2.5 it aint

steve c

LOL -- if you wish to believe that 4.77's are going to magically make the S2000 that much faster, I'm not stopping you.

moff

There is no way a chip or remap could unleash 75bhp on an normally aspirated engine that already has 192bhp! Even on a turbo car a chip is only likey to bring an increase of 20-25% without severely screwing the car.

Your mate is talking BS.

Anyway any stock S2000 will whoop a 2.5 Z4 unless the driver is crap.

TriaXenginE

dude, race him!