How much HP do you think I have? - Page 2 - United Bimmer Community

**Rooz** · 07-01-2006, 06:58 PM

Quote:

Originally Posted by BMWLotAttendant

315hp and 345 lb-ft

Is that from a Dyno?

**dinan540** · 07-05-2006, 11:44 AM

I don't have the graph with me, The HP at the wheels was 255 and torque was 282. I am not sure if I should be dissappointed or not. It was hot and a 20 mile drive to the dyno place. If you figure 15-18% loss.

I calculated with 15% loss approx 300 HP and 330 lb-ft of torque. I checked the dinan webpage and they calculate with my mods 315 HP and 340 lb-ft of torque. Maybe they calculate with an 18% loss of power. They burned a CD with the 3 runs and some other tables. I will post it sometime this week.

It was fun to see some of the other cars on the dyno. The new M5, an E39 M5, a 2002, and about 20 other cars. My digital camera is broken, so no pictures. If you haven't dynoed your car, it is fun to do.

**xsperf** · 07-05-2006, 11:50 AM

no you shouldnt be disappointed, thats very good b/c that is rear wheel horsepower, not at the crank, and you know your never actually going to get the exact numbers they give you

**RealBmw 02** · 07-05-2006, 03:13 PM

those are pretty good numbers. No reason to be dissapointed with those. What kind of numbers did the other cars post?

**dinan540** · 07-05-2006, 05:34 PM

The new M5 posted 413 HP to the wheels and I didn't catch the torque. The e39 M5 posted 335 HP and I didn't hear his torque. I will post more later today. I have to get back to work.

**doughboyea** · 07-05-2006, 07:52 PM

Seems like the census of the group here was pretty close... though some of us were a little more optmistic...

I must say though, I wish I had 255 to the wheels

Dough

**94bmw325i** · 07-05-2006, 11:30 PM

I wish I had 255 at the crank for starters lol, nice results!

**dinan540** · 07-06-2006, 12:40 PM

Thanks guys. I am not complaining, I love my torque. I think it would be better if I had more low end torque though. There aren't many more engine upgrades for me until I start thinking about forced induction, which costs $$$$$. For now, I will be content with my power.

**94bmw325i** · 07-07-2006, 04:47 PM

*cough supercharger *cough

I am starting to do some engine mods on my car finally, maybe we could make a dyno thread sometime, or an estimate your power thread or something...

**dinan540** · 07-07-2006, 04:53 PM

^^^sounds like a good idea. I should scan the data graphs that I got when I dynoed my car.

**Chris** · 07-07-2006, 05:51 PM

you forgot to add 5hp for the ub sticker....

**BMWLotAttendant** · 07-07-2006, 11:36 PM

Yeah....

You should have gotten 315 like I said.

And....no, I wasn't reading...that was just a logical guess with all his mods and stuff.

No worries, you'll get more the more $$$ (hence supercharger

) you put into her.

**dinan540** · 07-12-2006, 03:18 PM

Super charger would be sweet. Either I will seriously consider Forced Induction next summer or think about an M5.

**xsperf** · 07-12-2006, 06:30 PM

Quote:

Originally Posted by BMWLotAttendant

Yeah....

You should have gotten 315 like I said.

And....no, I wasn't reading...that was just a logical guess with all his mods and stuff.

No worries, you'll get more the more $$$ (hence supercharger

) you put into her.

hey man, remember that the stock figures of ~ 285 are at the crank, they arent at the wheels, and the dyno measures the wheel horsepower, and added on to that, he doesnt have any SERIOUS engine mods, like forced induction or different cams.. etc