E46 330i Automatic - M54B30 Turbo

[PEI330Ci]

I think I'm done with the solid engine and transmission mounts.

Replacement options:

OEM non-M rubber
E46 M3 Rubber
Bimmerworld Performance/Track
Rogue Engineering
Group N
UUC Poly
AKG Poly
Vibra Technics

One issue is that the turbo inlet pipe barely clears the solid engine mount; the AKG "turbo" mount appears to be the only mount designed to address this issue.

[pbonsalb]

The AKG turbo mòunt is about 2.75 diameter. Might work with a small turbo like your gt30. Would not fit with my efr9180. Chikinhed has a mount that is only 2.5. I think it is IE.

[PEI330Ci]

Those failsafes that I didn't set up previous, just saved my ass.

I've been setting up fairly elaborate CAN Bus messaging between the PDM, Dash, and M1 ECU, and I've had a few issues with the main fuel pump being turned on without the lift pump. So I disconnected the main pump while doing testing.

8 hrs later, I take the car out to test a 12 PSI boost target, and the engine falls on it's face under load. (Like it turned itself off) It seems the fuel pressure dipped below my target threshold, and the ECU did a hard ignition timing cut to drop engine RPM under target for that fault.

Back at the shop, I'm looking at the data and see the fuel pressure looks like crap. I've got 25% compensation in the closed loop....but even that couldn't keep up as RPM increased.

So I'm thinking that my brand new pump has taken a crap....or the fuel filter is clogged.....and then I remember......

I forgot to plug the main pump back in.....I had been running the engine on the lift pump alone!


In other good news, I did get some mild knock events to start calibrating the knock trims between cylinders.....

[PEI330Ci]

This was fun:



10 PSI boost pressure (WG spring), and Hoosier drag radials (245/45/17) ready to go:



13 passes in 1.5 hours. I called it quits on the slip below, and hung out with friends watching other cars.




On the drive home, I stopped near home to enjoy the view:

[dburt86]

hell yes. What boost did it go 118mph with?

Can you post what the knock looked like?

[PEI330Ci]

hell yes. What boost did it go 118mph with?

Can you post what the knock looked like?

10psi of boost....looks pretty solid on the data log across the RPM range. The interesting thing is that there was more in the car....but I was up against the hard rev limiter in 4th before the finish line. 7000 is the hard limit, and I have 2 stages of soft limiting. (Spark soft cut starting @ 6600, Fuel @ 6800) I also suspect that the car hasn't made peak HP by 6600....but we'll find that out on the dyno. I've also set a knock retard at 40%, which the engine seems to eclipse at higher RPMs, so there was a bit of timing being pulled.

Knock looked the same as before, but with higher amplitudes because I changed the center frequencies.

Probably the biggest issue I had was launching and figuring out the clutch. I don't have "pads" on the pedals, so my feed were slipping on the clutch pedal making the engagement point tricky. Going to install a nice set of billet pedal pads this week from TMS. I got it to slip a couple of times OK, but most of the time I either bogged the car or lit up the tires. The track was also really "green", so there was probably a couple of tenths in the 60ft in that alone. One thing I will say is that I'm actually glad I was getting wheel spin....instead of dead hooking and killing my driveshaft.

[PEI330Ci]

And I really do use the car:



The fuel pump swap:





Migrating the old Motec firmware package to the new firmware package:



There's 82 setup sheets I have to go through.....been at this on and off for about a week.

[pbonsalb]

Stock driveshaft? When do they let go on E46? I twisted a couple of E36 DS.

[dburt86]

Im not sure how much drag racing you will want to do, but i would imagine you could control this pretty sweet with the M1

http://realstreetperformance.com/Pro...-Solenoid.html

[PEI330Ci]

Im not sure how much drag racing you will want to do, but i would imagine you could control this pretty sweet with the M1

http://realstreetperformance.com/Pro...-Solenoid.html

I will be installing that and a line lock next winter when the engine is out of the car again. (I have to plumb those things with the engine out.)

[someguy2800]

Were you spraying it? That is a really nice MPH for 10 psi of boost in that heavy car!

[PEI330Ci]

Were you spraying it? That is a really nice MPH for 10 psi of boost in that heavy car!

Thanks!

No nitrous or Water/Meth.

3500+ Lbs with driver.

If I can get the VANOS and ignition timing dialled in, I think it can do more with a higher RPM limit.

[PEI330Ci]

This is the first run of the night....I think I ran a 13.7?



Boost is pretty solid at 11 PSI

With Knock data:



More Knock sensor data:




Interesting slip in 2nd gear:

[dburt86]

Interesting stuff on the 2nd to last graph. Looks like it has the most knock noise right around where I assume pk tq is.

what kind of timing value and afr are you there?

- - - Updated - - -

Side note- I ordered a 2 axis accelerometer. I'm not sure why I never had one since it's measuring literally the one thing I'm going for lol

[PEI330Ci]

Interesting stuff on the 2nd to last graph. Looks like it has the most knock noise right around where I assume pk tq is.

what kind of timing value and afr are you there?

- - - Updated - - -

Side note- I ordered a 2 axis accelerometer. I'm not sure why I never had one since it's measuring literally the one thing I'm going for lol

You can see the AFR and timing on the graph above that....look at the time stamp on the bottom to line it up.

While I see what you are saying, it doesn't line up that way consistently. Look at 3rd gear on the same pull.....it has more noise closer to peak RPM. The engine also is running very smooth, with no misfires or hesitations through that RPM range. (Audibly outside of the car by 3rd party, and inside the car by me) I've also done a spectral analysis of frequency vs RPM, and there isn't anything that stands out. (It looks like broad spectrum noise, that increases with RPM)

Shortly I'll receive the AKG Poly turbo mount, and will be putting Poly mounts back into the car.

I'm looking at a multi-axis accelerometer as well....I thought I was going to be able to use the ones in the Dash, but I'm not happy with the "quality" of the signal. There's a reason why Motec sells stand-alone accelerometers.....

[NOTORIOUS VR]

To me the knock data looks like it happens when there is wheels slip and the drivetrain is causing noise.

I don't see how you would have any knock really at the boost and timing level you're at. Considering the knock vales aren't dialed in yet I wouldn't focus on them all that much.

[PEI330Ci]

To me the knock data looks like it happens when there is wheels slip and the drivetrain is causing noise.

I don't see how you would have any knock really at the boost and timing level you're at. Considering the knock vales aren't dialed in yet I wouldn't focus on them all that much.

Totally agreed.

There is an enormous amount of noise coming from the transmission, which is hard mounted to the chassis at this point!

BTW, I do have a custom driveshaft being made to replace the OEM piece. (Not DSS)

[wazzu70]

Does the knock detection have a single threshold across the whole speed and load range? I assume you would reference a 3Dmap and have a higher threashold as engine load increases. More load, more bang, more amplitude?

[PEI330Ci]

Does the knock detection have a single threshold across the whole speed and load range? I assume you would reference a 3Dmap and have a higher threashold as engine load increases. More load, more bang, more amplitude?

I can put whatever I want in there. (With M1 Build)

At the moment, my knock trace is unusual, and not something that the M1 training videos addresses. (From both Motec directly, and HP Academy training webinar)

I'm going to wait for the new engine mount to show up, and go from there.

[jakermac]

BTW, I do have a custom driveshaft being made to replace the OEM piece. (Not DSS)

Do tell!! Is it plastic?

[PEI330Ci]

Do tell!! Is it plastic?

3.5" aluminum

Once I have it on the car I'll share more.

I don't want to put pressure on the Vendor, as I consider him a friend, and he's helping me out.


Yesterday I put all the front trim panels back into the car after sitting in a pile for 7 years! Car finally looks good inside. (Took the family to the Cars 3 movie in the car) I also did a ton of tuning on the idle control and fuel film model, which gave me a much better idle.

If the weather is good this Tuesday, I'm going back to the drag strip with a 15 PSI boost target on the boost control....going to try to edge up to an 11.5. (Can't go quicker or I'll get booted)

Edit: Has anyone run over 7200 RPM on stock 135mm rods? (I'm assuming ARP bolts were used) Looking to raise my rev limit to 7600....

[pbonsalb]

For those of us with E36, which is most of us, 3.5 inch diameter DS is too big, at least with the factory fuel tank. Might fit with a fuel cell but I am not ready for a cell yet.

[PEI330Ci]

For those of us with E36, which is most of us, 3.5 inch diameter DS is too big, at least with the factory fuel tank. Might fit with a fuel cell but I am not ready for a cell yet.

I'm aware of this, I was warned when I placed the order. However there appears to be space on my car...and worst case, I put spacers on the the rear subframe to drop it a bit.

[dburt86]

I'm running a 3.5 in a e36. It just barely rubbed on the tank until I lowered the subframe a bit

but yea its tight, and I don't really care too much about my chassis.

[PEI330Ci]

11 PSI doesn't seem so fast anymore.

Going to add 5 PSI and get that dialled..