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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Supercharger stuff (MILVs+AA+BPC)



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      03-14-2024, 11:51 AM   #1519
shimstack
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I'm still in the hunt here. Not using the ESS kit, I'm going to fab my own system.

I'm finishing up the N54 intake manifold and TB install and now seems to be a good time to install check valve(s) to keep the boost out of the crank case.

I retained the check valve from the N54 TB to the fuel tank vent. It seems like one is also needed in the PCV line between manifold and valve cover.

Any others?
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      03-14-2024, 12:01 PM   #1520
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Quote:
Originally Posted by shimstack View Post

It seems like one is also needed in the PCV line between manifold and valve cover.

Or do I need to re-route this line to the intake upstream of the SC and plug the port in the manifold?
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      03-16-2024, 10:59 AM   #1521
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I found the answer here in case anyone else is looking:

https://www.e90post.com/forums/showt...1143622&page=3

Also ESS doesn't list the N52 kit anymore, but it seems you can buy the parts:

https://esstuning.com/n52-vt/
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      Yesterday, 01:05 PM   #1522
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Quote:
Originally Posted by dmytro98 View Post
The crank hub I got wasn't meant for the n52. It said it would only fit the n54 but all I needed to change to make it work on the n52 was using an n54 oil pump sprocket that the crankhub slips into as it was different sizes. Everything is shared between the n52 and n54.

The one on the left is the original crankhub, and the one on the right with the splines is the VTT n54 splined crankhub
How does the crunkhub from N54 work on your engine, is everything good?

My crankshaft bolt came loose again.
This has happened to me three times already.

Last edited by Igor.v_a; Yesterday at 04:16 PM..
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      Yesterday, 04:53 PM   #1523
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I've had no issues with the n54 crankhub, but if you're thinking of swapping to that I don't think it would help keep the crankbolt coming loose. What are you torquing it to? Double-check if I'm right but I believe it's 100nm+360 degrees with no thread locker, but I've seen some people say to put oil on the threads.
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      Yesterday, 05:10 PM   #1524
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Quote:
Originally Posted by Igor.v_a View Post
Guys, does anyone know how many degrees water-methanol 50/50 reduces the temperature in the intake manifold?

Has anyone installed a temperature sensor in the intake manifold?

It's interesting how much the air heats up due to the supercharger.
My numbers might vary since I'm at around 6-7000 feet of elevation, but running a 3.12in pulley, I'm making 10psi above 7300rpm, and just doing a couple pulls on the street my IAT's have gotten as high as 180f, with the iat sensor in my chargepipe. This is with ambient temps of about 50f.

Currently I'm on full e85, or I guess e70 since that's what it ends up testing at, but I'm planning on running the water to air manifold that stagefp should be releasing soon.
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      Today, 02:38 AM   #1525
Igor.v_a
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Quote:
Originally Posted by dmytro98 View Post
I've had no issues with the n54 crankhub, but if you're thinking of swapping to that I don't think it would help keep the crankbolt coming loose. What are you torquing it to? Double-check if I'm right but I believe it's 100nm+360 degrees with no thread locker, but I've seen some people say to put oil on the threads.
That's right.
Tis says 100Nm + 360 degrees turn and lightly lubricate the thread.

We did just that, added blue Permatex thread locker and the crankshaft bolt still came loose.

Then we installed a new bolt, but no longer lubricated it with oil, but only with thread locker.
Even the OEM washer was installed from N54 and the bolt still came off.
I do not know what to do.
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      Today, 02:46 AM   #1526
Igor.v_a
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Quote:
Originally Posted by dmytro98 View Post
My numbers might vary since I'm at around 6-7000 feet of elevation, but running a 3.12in pulley, I'm making 10psi above 7300rpm, and just doing a couple pulls on the street my IAT's have gotten as high as 180f, with the iat sensor in my chargepipe. This is with ambient temps of about 50f.

Currently I'm on full e85, or I guess e70 since that's what it ends up testing at, but I'm planning on running the water to air manifold that stagefp should be releasing soon.
I also have an 80mm supercharger pulley installed.
At minus 10 Celsius, my boost gauge showed 13 psi. 6900RPM
Now it's plus 8 Celsius outside and my boost sensor shows a maximum boost of 11.5 -12 psi. 6800RPM

In the coming days, I will also install an IAT sensor in the intake manifold.

I also have a WMI injector installed in front of the throttle body.

22RPD recommended adding a second WMI injector, upstream of the supercharger.

And measure IAT temperature

Last edited by Igor.v_a; Today at 02:53 AM..
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      Today, 12:46 PM   #1527
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I found a solution to prevent the crankshaft bolt from coming loose.
https://www.ecstuning.com/b-vargas-t...t-n54-cbc~vtt/
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