Sounds about right (archive)

The JC chips improved the PEAK rear wheel HP on a 850i 6-spd by 17 HP, probably about 21 HP at the flywheel. The claims of a 40 HP gain are only for certain RPM points, still a valid gain, but can be somewhat misleading. The chips will make the car will feel like 40 HP stronger when you are on the boil keeping the RPM up against the limiter because the stock motor falls off at higher RPM. Short-shifting the stock motor would narrow the gap - but it isn't as much fun. That's what a truck is for :-)

Others have posted dyno results from K&N's that showed a slight loss or essentially no difference and the only claims I've seen for different exhaust's had only a slight gain (about 5 HP for Dinan) over stock. The plugs won't make much of a difference.

So 296 stock, +21 for chips, -1 for K&N, +5 for Remus puts you at 321 (Math is easy when you know the answer :-).

So what percent of the national debt are they quoting you for this set-up? Probably near the cost of buying a second 850 (another route to having 600+ HP :-) Don't forget to include in your budget the cost of giving other 8 series fans within a 200 mile radius a ride (hey that includes me!)

Follow Ups:

Re: Sounds about right Jim 20:17 6/11/2001 (1)
- Dyno charts, Conforti vs stock David C 12:03 6/12/2001 (0)

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