E46 Dyno Thread

Originally Posted by lab rat

Name: lab rat
Car/Engine: e46 touring / M54B30
Mods: ess twinscrew supercharger (8.5 PSI), catless headers, BMW Performance intake
Peak numbers: 331whp/310wtq
Dyno type: Mustang

Originally Posted by lab rat

Name: lab rat
Car/Engine: e46 touring / M54B30
Mods: ess twinscrew supercharger (8.5 PSI), catless headers, BMW Performance intake
Peak numbers: 331whp/310wtq
Dyno type: Mustang

wow that would be great to see a baseline on the same dyno before. very impressive numbers.
According to what you posted that means your car is putting down 380 HP and 357 lb-ft of Torque according to ESS Stage 2 Specs.

"Correction factor for drivetrain loss is 15% above RWHP as seen in dynograph (RWHP/0.85)
(E46 330)
Boost pressure: 8 PSI
Horsepower: 345 SAE/350 DIN Manual
Torque: 317 lb-ft/430 Nm Manual

what Octane gas did you run?

I'm actually running stage 2+ (8.5 PSI) without the modified cams. That is rated at 370 or 375hp.
It's also overboosting to 9.5 at the top.
The gas is 94 octane.

I only have a baseline run with the old engine (M54B25) with Dinan chip. It pulled 172/162. The chart is on the second page of my build thread (in the sig).

Name: DarkJoker
Car/Engine: e46 coupe / M54B30 140,000 miles
Mods:BMW Performance intake, bimmer brakes gen 1 headers,muffler delete w/factory resonators, rouge pulley's,1 step colder spark plugs, uuc lightweight flywheel, custom brentuning tune
Peak numbers: 260.9 hp /242 tq at flywheel 221hp/206tq to the wheels given 15% drivetrain loss
Dyno type: Dyno Dynamics shootout6

the 238 hp was before tune



air fuel ratio graph

There's no way you're making 300 crank (assuming 15% drivetrain loss)

ive been reading dyno dynamics dynos are weird with there Numbers and theres different modes for everything
http://www.xspeed.com.au/tech_features.php?tech_id=19

Maybe they measured w/ crank power.

15% loss of 260 is 221whp. Which would be a more appropriate for your modifications.

i think you maybe right on that one because on the side of the graph(which you cant see in my first picture) it says flywheel hp
i havent got the actual files just printouts at them moment thats the tuner's picture(the first picture)

I thought drivetrain loss is usually quoted in hp rather than %?
Why would the loss climb if the engine puts out more hp?

Originally Posted by nike001

Maybe they measured w/ crank power.

15% loss of 260 is 221whp. Which would be a more appropriate for your modifications.

Originally Posted by Stinger9

I thought drivetrain loss is usually quoted in hp rather than %?
Why would the loss climb if the engine puts out more hp?

Let's not open this can of worms here
This is the reason all cars should be rated at whp.

Unless you're buying an engine and want to compare one to another.

Or if you're engine tuning, you want to know exactly what each mod will do at the output.

Name: Mestupmonkydude
Car/Engine: e46 sedan / M52TUB28 148,500 miles
Mods: resonator delete, AA muffler
Peak numbers: 178.86 hp 192.48 ft-lbs
Dyno type: Dynojet

Awesome numbers man, you should start modding!

Name: zhp43867
Car: 2004 330ci ZHP
Mods: None
Dyno: Dynojet, SAE- 1.01 Correction factor, 85 degrees, 30% humidity

Originally Posted by Iceman00

Damn it, it's MPH. Not bad though.

I messed around in winPEP 7 a little more and I got a better graph in my post. Yeah I was very happy with the numbers I got.

Originally Posted by mestupmonkydude

I messed around in winPEP 7 a little more and I got a better graph in my post. Yeah I was very happy with the numbers I got.

I just saw it, I can't wait to see what you end up doing.

Name:locodice
Car/Engine: E46/M54B30
Mods:ZHP, Active headers, Highline tuning exhaust, Shark injector, Sprint booster, 3.46 differential
Dyno type:Dynojet
Peak numbers:227whp/219wtq
Graph:

Well I've got headers I have still yet to install. That may be one diy I may take to the shop. Then after that really not much I can do but a better exhaust. I should probably set aside some money every month for a supercharger. Or pay techniquetuning lots of money for a turbo setup for the 328i. It shouldn't be too hard since they have a kit for the e36 328i, which is basically the same engine but with single vanos.

120,000 miles 2003 325i
Schrick 264/248 cams
Ebay headers
AA custom tune

185 whp, cant remember torque or find the chart

Name:l325rider
Car/Engine: E46/M54B25
Mods:Schrick 264/248 cams, Ebay headers, AA custom tune, stock intake and exhaust
Dyno type:Mustang
Peak numbers:185whp/158wtq
Graph: