Speedtech EFR 7670 on e84 X1

[SLOWESTN54]

@wheela Do you know by any chance if you can use a B58tu hpfp on a N55

 

[wheela]

@wheela Do you know by any chance if you can use a B58tu hpfp on a N55

I feel like I've seen posts of people doing that, but I didn't pay too close attention because I have my Dorch stage 2. I'm gonna go with a solid maybe??

 

[wheela]

Happy update!!!

























Turbo has shipped!!!!

 

[SLOWESTN54]

ayeeee

 

[wheela]

She's a beaut. Looks hungry, too

 

[houtan]

Hellllllllllo. Congrats. She’s beautiful.

So the Boost solenoid that’s bolted to the cold side, are you going to Control that through the DME?

 

[wheela]

Hellllllllllo. Congrats. She’s beautiful.

So the Boost solenoid that’s bolted to the cold side, are you going to Control that through the DME?

Thank you!!!

Yeah, that's the plan. It's not designed to run on the high frequency duty cycle the DME outputs, but hardparker tested it out in this thread, and it seemed to work:

Conventional pressure operated wastegates on the N55

Conventional pressure operated wastegates on the N55

f30.bimmerpost.com

He used a 7.01024.02.0 valve which I was planning on buying. But I see the turbo came with a 7.01024.00 valve. I've been searching, and it seems these may actually be the same valve.

I plan on testing functionality of this valve on the higher duty cycle first though. So I bought this fully adjustable duty cycle generator. I'll connect the valve to an air compressor and measure the pressure output vs. duty cycle at the higher frequency with this generator. Then I'll know for sure if it will be sufficient. I'm guessing it may not be linear at the higher frequency, but it will certainly be interesting to compare it's performance at 32Hz vs. 200 or 250 (don't remember off the top of my head if it's 200 or 250).

 

[houtan]

Sounds good. Just a heads up I tried to do the same thing hardparker did, but it did not work for me.

But I don’t have the know how that you do so maybe you can figure it out.

Was hard Parker an F series car?

 

[wheela]

I also picked up this "shuenk" inlet from Midnight Motorsports. It's a full 3" inlet, much larger than my vrsf inlet. The plan is to modify it to provide a connection between the 4" turbo inlet and the oem air duct pipe via a 4" x 3" silicone elbow.

 

[wheela]

Sounds good. Just a heads up I tried to do the same thing hardparker did, but it did not work for me.

But I don’t have the know how that you do so maybe you can figure it out.

Was hard Parker an F series car?

Hmm, it wasn't working? That's discouraging to hear. He was f-chassis X3, but that's one of those in-betweener models that still had the e-chassis style pneumatic wastegate. Wish me luck, if the valve doesn't work I'll have to figure out plan B.

 

[wheela]

Small update. Finally got around to mounting the empty block, head, and valve cover on an engine stand for mockup. I'll work out inlet plumbing and water pump placement with this. Projects go sloooooow with 2 kids under 5...

 

[SLOWESTN54]

Ima have to come install the kit for you @wheela

 

[wheela]

Ima have to come install the kit for you @wheela

Perfect, I'll provide the beers

 

[wheela]

Ima have to come install the kit for you @wheela

@SLOWESTN54 What's new with the m340i?

 

[SLOWESTN54]

@SLOWESTN54 What's new with the m340i?

Nothing really, It's Still just FBO, Intake, turbo inlet, down pipe, charge pipe, on a Mhd Stage 2 e40 tune. It's quick enough for now, in the spring i will be spicing it up. Looking for a set of wheels has also been a pain, They should of stuck with 5x120 instead of switching to 5x112