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Old 07-26-2011, 04:58 PM   #1
flashmeow
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DYNO: M54B30 intake manifold swap

Here is my pre dyno result (baseline) from today. I am going to do the intake manifold swap and then get it dyno again later this week at the same shop.

Tips on Dyno:

1) Make sure the car is fully adapted to your modifications before you go get tested or reset your adaptation. I reseted my adaptation and drove about 75miles to the Dyno shop.

2) Make sure the dyno shop you use has adequate fans and ventilation.

3) Measure air/fuel ratios from the right tailpipe.

4) Disable the traction control system.

5) For automatic transmissions: Shift the car in to 4th gear in sport mode, bring the RPMs up to around 1800-2200, and then floor the car to right before the kick down switch. If you floor it all the way, the car will downshift and screw up your run. If you are afraid of activating the kick down switch then disable it. I disconnected mine

My car:
M52TUB25, Exhaust, Intake, Shark, UDP, Headers

Atomospheric Condition: Hotter than freakin Kenya! 105-107 degree F and Humidity at 11-12%

I did four runs. We only graph 3 out of 4 runs because the first run was just a practice. I was in the driver seat and wanted a test run to practice getting the car in 4th gear, disabling DSC, and not trying to activate the kick down switch.

Best run is #4 at 168.96HP and 161.07 Ft/lbs (106.73F and 11% humidity. SAE correction 1.04. SAE Smoothing 3)

Alright on to the Dyno. I am concern about the dips at ~4.2K and ~6.3K

I will post another DYNO to see if I gain/loose anything from the intake manifold swap.
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Last edited by flashmeow; 07-26-2011 at 05:00 PM.
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Old 07-26-2011, 05:07 PM   #2
Iceman00
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Dips are normal, and the first is due to the DISA valve in the manifold, the second more than likely do to manifold resonance. Every M52TU dyno has them. Great job on the dyno, can't wait to see how the M54 manifold performs.
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Old 07-26-2011, 05:26 PM   #3
flashmeow
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Quote:
Originally Posted by Iceman00 View Post
Dips are normal, and the first is due to the DISA valve in the manifold, the second more than likely do to manifold resonance. Every M52TU dyno has them. Great job on the dyno, can't wait to see how the M54 manifold performs.
Thanks. If I get some gain on my intake manifold then I am going to buy you a beer. If you don't drink then I am going to buy you a pet kitten.
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Old 07-26-2011, 05:48 PM   #4
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Old 07-26-2011, 05:53 PM   #5
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is this a 323?
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Old 07-26-2011, 06:06 PM   #6
Hornung418
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Quote:
Originally Posted by azshorty View Post
is this a 323?
Yup.

And despite all the mods it's lacking a lot of torque...why am I making 40 more lb/ft than OP, if I only have .3 litres difference in displacement?? Hopefully the new B30 manifold helps you there.

EDIT: Automatic transmission...
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Old 07-26-2011, 07:21 PM   #7
Iceman00
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Quote:
Originally Posted by flashtwosix View Post
Thanks. If I get some gain on my intake manifold then I am going to buy you a beer. If you don't drink then I am going to buy you a pet kitten.
Love cats, but I'll take a blue moon and don't forget to update your post in they dyno thread.

Last edited by Iceman00; 07-26-2011 at 07:24 PM.
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Old 07-27-2011, 05:37 PM   #8
flashmeow
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UPDATE: Half way done. Pulled out my intake manifold but can't put anything back together until I clean out the M54B30 intake manifold. it is caked with carbon deposit.

Pulled out my intake manifold today. Took me about 4 hours. Went pretty smoothly except that I dropped a few fasterns and now I have to look for them.

Some observation: High Quality Gas (I always used Chevron w/ Techron and/or Shell w/ Nitrogen) makes a difference in cleaning your intake/fuel injection system. The M54B30 intake manifold was CAKED with heavy deposit of carbon by the intake and fuel injector ports. When I pulled out my old intake manifold (M52TU) the areas I mentioned above was clean. There was no trace of carbon deposit. the only residue were oil/fuel. I am rather surprised because I have over 120,000 miles on my car.

1st Pix: M54B30 intake manifold with all the o-rings/gasket and 330 DISA
2nd Pix: My engine bay
3rd Pix: Remove strut bar, cabin filter, CAI
4th Pix: remove MAF, DISA, ICV
5th Pix: remove Throttle Body
6th Pix: remove fuel injectors
7th Pix: fuel injectors
8th Pix: difference between 330i and 323i DISA
9th pix: engine bay without intake manifold
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Old 07-27-2011, 05:40 PM   #9
flashmeow
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1st Pix: old intake manifold
2nd Pix: M54B30 intake manifold with carbon deposit spilling out after spraying with brake cleaner
3rd Pix: my M52TUB2 intake manifold. no trace of carbon build up.

I am so glad I paid extra for Chevron/Shell

Need to go to Autozone and buy more cans of brake cleaner. Tomorrow I will put everything together.
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Last edited by flashmeow; 07-27-2011 at 05:41 PM.
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Old 07-27-2011, 09:55 PM   #10
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more nastiness



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Old 07-27-2011, 10:23 PM   #11
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if the weather was 70 degrees im sure you would picked up around 10 hp or what not. 107 is deadly sounding
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Old 07-27-2011, 10:49 PM   #12
Iceman00
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I find you working on your car strangely attractive.



































































Call me.
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Old 07-27-2011, 10:53 PM   #13
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^^^ lol
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Old 07-28-2011, 01:38 AM   #14
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Old 07-28-2011, 11:54 AM   #15
flashmeow
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Mini update: grind down the TB. test fitted and everything is good to go. just have to transfer a few things from my old intake manifold to the new one and I should be good to go.



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Old 07-28-2011, 12:24 PM   #16
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I cant believe you did it with a dremel , i just got my big 'ol grinder and chopped it off ^^
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Old 07-28-2011, 12:37 PM   #17
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I had a local machine shop hot tank an intake manifold for me and it looked like factory new! Only cost a couple bucks and a few hours, so if it isnt too late you might consider that!
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Old 07-28-2011, 12:38 PM   #18
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I cant believe you did it with a dremel , i just got my big 'ol grinder and chopped it off ^^
I am not good with power tools so anything bigger than a dremel will either mess up my manicure or get me seriously hurt
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Old 07-28-2011, 12:39 PM   #19
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I am not good with power tools so anything bigger than a dremel will either mess up my manicure or get me seriously hurt
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Old 07-28-2011, 12:43 PM   #20
flashmeow
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I had a local machine shop hot tank an intake manifold for me and it looked like factory new! Only cost a couple bucks and a few hours, so if it isnt too late you might consider that!
that is a good idea. Let me look into that. How would i look for machine shop in the yellow page? is it listed under auto repair?

The good news is I think I cleaned out the majority of the carbon build up after spraying about 7 cans of brake cleaner and scrubbing it down with my husband toothbrush and running my water hose through the manifold. the only thing remaining is oil dried oil residue (ie..similiar to your valve cover) but I am okay with that.
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