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      04-11-2008, 08:34 PM   #1
ansun
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DYNO Results: DINAN/BMS Intake

Hello Everyone!

So today I told my CEO that I had a "doctors appointment from 12 till 2". Secretly I sped on over to MD automotive in Westminster, CA to run a Dyno on my 135i! (Dont tell on me!)

What I have done to the car so far:

DINAN Stage 1 Flash
BMS Intake
"Gold Tee" exhaust (I actually used a ball-bearing)

From other posts and my own research the below numbers are almost pretty darn close to correct for a stock baseline 135i:

263 wheel Horse Power at 5500 RPMs
274 foot pounds of torque at 3250 RPMs

I will discuss no further about my vehicle and simply show you a video as well as the dyno results

Video of Dyno
(wait till it hits 30 seconds...oh and sorry I forgot to insert my shout-out 1addicts.com)


Dyno Results


Picture fixed

Max HP 323
Max Torque 354
Max Boots 14 psi


A note regarding the BMS intake:

I really do not care if it gives me more horsepower or not. The sound in of itself is reason enough for me to keep it. I LOVE hearing the turbos spool up. I will be keeping an after-market intake as long as it does not show a loss in power over stock
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      04-11-2008, 08:40 PM   #2
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      04-11-2008, 08:52 PM   #3
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That was done on 91 octane, correct?
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      04-11-2008, 08:58 PM   #4
M3_Dust
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wow that is really disappointing on a dynojet, stock 135i has dyno'd at 290hp on a dynojet, the 263/274 number is on a mustang which reads much lower than a dynojet.

I would try it again with the stock intake and see if there is a difference, you should be making 350+ on a dynojet though.
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      04-11-2008, 08:58 PM   #5
ansun
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Quote:
Originally Posted by crzy4135i View Post
That was done on 91 octane, correct?
Yes, nothing less than 91 will ever hit my tank.
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      04-11-2008, 08:59 PM   #6
ansun
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Quote:
Originally Posted by M3_Dust View Post
wow that is really disappointing on a dynojet, stock 135i has dyno'd at 290hp on a dynojet, the 263/274 number is on a mustang which reads much lower than a dynojet.

I would try it again with the stock intake and see if there is a difference, you should be making 350+ on a dynojet though.

BMS states a min gain of 8 to 15 hp.

BMS reps...can you explain any of this?
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      04-11-2008, 09:08 PM   #7
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what did they use as a HP @50mph numnber???
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      04-11-2008, 09:20 PM   #8
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Cool! Thanks for posting this. One thing that seems weird is the bottom scale is MPH, not RPMs...
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      04-11-2008, 09:27 PM   #9
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Quote:
Originally Posted by larryn View Post
One thing that seems weird is the bottom scale is MPH, not RPMs...
I saw that too, I thought I was going crazy for a second
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      04-11-2008, 09:34 PM   #10
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Mark told me the air fuel is off by about .4% difference
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      04-11-2008, 10:16 PM   #11
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This is wheel horsepower right?

Max HP 323
Max Torque 354
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      04-11-2008, 10:22 PM   #12
ansun
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Quote:
Originally Posted by silverbullet135i View Post
This is wheel horsepower right?

Max HP 323
Max Torque 354
Yes, so it does more at the crank.
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      04-11-2008, 10:23 PM   #13
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Yes, it would be wheel HP, but it is still less than the 380 Dinan Flywheel HP they state.
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      04-11-2008, 10:32 PM   #14
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Quote:
Originally Posted by Templedogg View Post
Yes, it would be wheel HP, but it is still less than the 380 Dinan Flywheel HP they state.
With a 17% drivetrain loss 380 crank = ~315 rwhp. So what Ansun's making seems about right to me...or am I missing something?

EDIT: or does it have to do with the fact that it's been done on a dynojet?
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      04-11-2008, 10:50 PM   #15
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Quote:
Originally Posted by denial View Post
With a 17% drivetrain loss 380 crank = ~315 rwhp. So what Ansun's making seems about right to me...or am I missing something?

EDIT: or does it have to do with the fact that it's been done on a dynojet?
it's the dynojet, it should be reading more like 350hp/380tq to equal the dinan claims of 384/421. the only way to know for sure would be to do a baseline dyno stock then dyno with the flash, same car, same dyno.
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      04-11-2008, 10:51 PM   #16
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There is a possibilty that the intake is making you lose power. Like someone said above, you should dyno again with a stock intake...it is probably why your A/F ratio is off.
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      04-11-2008, 11:26 PM   #17
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How much did Mark charged you for the dyno?
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      04-11-2008, 11:41 PM   #18
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I always use 15% drivetrain loss on my BMW's - 380flywheel x .85 = 323 RWHP

17% drivetrain loss - 390flywheel x .83 = 323RWHP

Those numbers look good to me.
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      04-11-2008, 11:48 PM   #19
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Numbers look good, air/fuel ratios look good. The Dinan tune does 315-320rw on 91 octane so you're right on par. And some dynos read higher or lower than others. A stock 135 should do around 270rw on a dynojet.
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      04-11-2008, 11:51 PM   #20
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Quote:
Originally Posted by M3_Dust View Post
it's the dynojet, it should be reading more like 350hp/380tq to equal the dinan claims of 384/421. the only way to know for sure would be to do a baseline dyno stock then dyno with the flash, same car, same dyno.
There have been *many* Dinan flash dynos posted and I've yet to see one come close to those numbers. They do 315-335 depending on dyno, octane, dyno conditions, transmission, etc.

Here are some examples:

315, 316, and 320 rwhp:

http://www.e90post.com/forums/showthread.php?t=111530

315rwhp:

http://www.e90post.com/forums/showthread.php?t=105689
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      04-11-2008, 11:52 PM   #21
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Quote:
Originally Posted by Blowndaily View Post
There is a possibilty that the intake is making you lose power. Like someone said above, you should dyno again with a stock intake...it is probably why your A/F ratio is off.
Impossible! We've done a lot of dyno testing and there are gains every time. And the air/fuel ratios are closed loop so no intake mod can change them. Only an ECU flash or piggyback can alter the air/fuel ratios.
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      04-12-2008, 12:26 AM   #22
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Is your traction control on when you Dyno the car?
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