[JDane07]

Originally Posted by PureE92

Hey guys is this the 335i dyno thread?

Obviously. How else do you think we are all making 200whp?

[Twoforty]

Originally Posted by JDane07

Obviously. How else do you think we are all making 200whp?

555

[tetsuo111]

Thanks Axiom, for this thread. Lot's of reference points here.

Here's my contribution:

Car: BMW e91 328i xDrive Sports Wagon
Engine: N52B30M1
Transmission: AT / AWD
Power Mods: 3 stg IM, AA headers + Performance Coatings, AA off-road tune, Euro airbox, PiperCross filter
Dyno Type: Mustang
Peak Pwr / Tq: 222 whp / 196 Ft-lbs

[tetsuo111]

Thanks Axiom, your comment saved me time. I was scanning past data to glean where my numbers stood relative to others. Of course it's a low-value exercise since the conditions / location / dyno /etc differ for each of us. I suppose I'm just succumbing to human nature. Sure 55 deg helps, but in FL you have sunshine, bikinis and beaches.....

The math suggested I should expect ~220 whp, while I've been around enough to not be surprised when there's a delta between projections and reality. I hoped to be around 220, and expected to be anywhere between 210 - 220.

I think I need an intervention. Was seriously considering how to transplant an S65 into my E91. 400+ hp would solve our power problems and allow us to remain NA. My advisor suggested it would be less expensive for me to pick-up boat racing as a hobby.

Originally Posted by TheAxiom

WHOA, Awesome numbers, especially for a AWD/Auto. I typically estimate around 10% lower numbers due to Mustang dynos vs Dynojets. Obviously it varies, but those numbers are impressive no matter what!

(55 degrees really helped you out I would guess, especially compared to 90* out here in FLA)

Edit: I hear it's a "high" reading Mustang dyno, which some say is only 6-7% off a dynojet. Who cares, power curve looks really good and healthy for the car, especially considering the drivetrain. I hope you're having fun!

[Taskmaster]

Originally Posted by tetsuo111

Thanks Axiom, your comment saved me time. I was scanning past data to glean where my numbers stood relative to others. Of course it's a low-value exercise since the conditions / location / dyno /etc differ for each of us. I suppose I'm just succumbing to human nature. Sure 55 deg helps, but in FL you have sunshine, bikinis and beaches.....

The math suggested I should expect ~220 whp, while I've been around enough to not be surprised when there's a delta between projections and reality. I hoped to be around 220, and expected to be anywhere between 210 - 220.

I think I need an intervention. Was seriously considering how to transplant an S65 into my E91. 400+ hp would solve our power problems and allow us to remain NA. My advisor suggested it would be less expensive for me to pick-up boat racing as a hobby.

[tetsuo111]

Axiom, my torque @ 196 ft-lbs seems a little low in comparison with the hp (222 whp) and other car pulls. Any thoughts on why?

OT, just installed RM throttle body hose in place of the muffled OEM piece. In spite of my cynical nature, it does seem to pull just a little more freely, and there's a subtle 'whooshing' sound under throttle that's new. This one's a no brainer. Now I need to reconsider the performance intake. But it kills me to pay BMW > $800 for the same hp gains as the $60 RM hose. Doh!

[Taskmaster]

Originally Posted by tetsuo111

Axiom, my torque @ 196 ft-lbs seems a little low in comparison with the hp (222 whp) and other car pulls. Any thoughts on why?

OT, just installed RM throttle body hose in place of the muffled OEM piece. In spite of my cynical nature, it does seem to pull just a little more freely, and there's a subtle 'whooshing' sound under throttle that's new. This one's a no brainer. Now I need to reconsider the performance intake. But it kills me to pay BMW > $800 for the same hp gains as the $60 RM hose. Doh!

Drivetrain loss, transmission type, intake type - etc. All of these could have an effect on the output. I know your car is an AWD auto, but I'm still curious what it would do on a proper dynojet. All that really matters is that the car is quicker and more fun than it was before - if that's true, mission accomplished.

[tetsuo111]

All true. I searched for a 6MT before pulling the trigger on this car. Finally decided it was like hunting for a unicorn, almost non-existent, and moved forward with the auto. Not a day passes where I don't wish for a proper gearbox and one more pedal...

[Mike.]

Originally Posted by TheAxiom

Username: e90pilot
Car/Engine: 325i/N52B30
Transmission: Manual
Mods: 3 stage intake manifold, AA stage 1 tune vs OE stage 1 tune
Dyno type: Dynojet
Peak Numbers: 210whp/201wtq (AA) 209whp/186WTQ (OE)
Graph:

What's up with the Tq on the OE

[Taskmaster]

Originally Posted by Mike.

What's up with the Tq on the OE

Old dyno from back in 2011 or so, but I think there was an ignition timing issue which caused the car to cut timing, which as you can see - caused a jump in power near the end of the powerband.

[Mike.]

[IMG]http://i60.tinypic.com/2u90sc3.jpg[/IMG]

[Username: Mike.
Car/Engine: 328xi/N51
Transmission: automatic
Mods: FBO
Dyno type: Dynojet
Peak Numbers: 231hp/203 hp
Graph:. ^^

[hassmaschine]

Seems a littly lumpy, like you're missing mid range hp/tq. Still, good #s for an xi automatic! You have AA headers, right?

[Mike.]

Originally Posted by hassmaschine

Seems a littly lumpy, like you're missing mid range hp/tq. Still, good #s for an xi automatic! You have AA headers, right?

he said he was trying to get a smooth graph? I dont know.. apparently AA never tuned the 3 stage and the headers..like a custom tune, maybe there is more to be had

and yes i do have AA headers

[Taskmaster]

Originally Posted by Mike.

he said he was trying to get a smooth graph? I dont know.. apparently AA never tuned the 3 stage and the headers..like a custom tune, maybe there is more to be had

and yes i do have AA headers

Well...I don't know that for sure, it could be their Super Sprint map...but I'll see what I can do.

[Mike.]

Originally Posted by TheAxiom

Well...I don't know that for sure, it could be their Super Sprint map...but I'll see what I can do.

I pmed Andrew, so we will wait and see...unless you have another idea

[bassballer150]

I'm just going to save my money not impressed with this gains

[hassmaschine]

TheAxiom, it would be nice to label the graphs that are estimated BHP vs WHP. I looked at that Z4 3.0si and wondered how the hell it put down 254whp stock, then I looked and it's really an estimated BHP value.. and guys like the one below probably can't spot the difference on their own.

Originally Posted by bassballer150

I'm just going to save my money not impressed with this gains

OK.

[Taskmaster]

Originally Posted by hassmaschine

TheAxiom, it would be nice to label the graphs that are estimated BHP vs WHP. I looked at that Z4 3.0si and wondered how the hell it put down 254whp stock, then I looked and it's really an estimated BHP value.. and guys like the one below probably can't spot the difference on their own.



OK.

I did, I Listed the BHP as HP vs WHP.

[Taskmaster]

What I want to do is make a separate thread of some sort showing the gains for people have done before and afters. When I have time and have had enough rest, I'm burning the candle at both ends....

[hassmaschine]

I know what you mean.. lol

[andrey_gta]

Originally Posted by TheAxiom

Username:
Car/Engine: 130i/N52B30
Transmission: Manual
Mods: Stock vs Tune
Dyno type: Dyno dynamics
Peak Numbers: Before 191whp after: 201whp
Graph:

that looks like OEM software was not optimized at all...Wow. Which tune is it?

[Taskmaster]

Originally Posted by andrey_gta

that looks like OEM software was not optimized at all...Wow. Which tune is it?

No idea, was Vizu or something like that.