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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 03-31-2014, 01:05 AM   #21
ReeceEngM54
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What grinding tool were you using to port match?
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Old 03-31-2014, 07:00 AM   #22
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Pneumatic die grinder with various fluted burs to cut and cartridge rolls to finish.
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Old 03-31-2014, 10:07 AM   #23
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Major advantage to this manifold that I hadn't really considered before - it is amazingly quick to install and remove. I've had the thing on and off the car probably 50 times fabricating brackets, running wires and hoses, etc and even with everything fully assembled I can have the manifold out and on the ground in no more than two or three minutes. Try that with an M54!
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Old 03-31-2014, 10:48 AM   #24
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Old 04-03-2014, 08:29 PM   #25
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Well, it runs! Fired it up with no issue and loaded a new temporary map into the VE table in the MS3. Hoping to get down to Virginia Beach for a new tune next week or maybe the week after
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Old 04-04-2014, 12:36 AM   #26
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That's great. Do you have any idea where the injectors max out?


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Old 04-04-2014, 05:46 AM   #27
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Somewhere well north of my power level. They're 42lb/hr.
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Old 04-04-2014, 10:38 AM   #28
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Yeah that's good for at least 350hp. Great job man, looking forward to seeng the numbers


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Old 04-04-2014, 12:28 PM   #29
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Well, I sized them to have headroom when I was running E85 which requires like 30% more fuel for the same power level as straight gas. thanks, I'm looking forward to hitting the dyno as well.
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Old 04-04-2014, 04:41 PM   #30
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Pics? How did you plumb the ICV and CCV?
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Old 04-04-2014, 06:51 PM   #31
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Oh yeah?!
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Old 04-04-2014, 10:39 PM   #32
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Pics? How did you plumb the ICV and CCV?
Pics of what?

I used E36 ICV hoses and junctions and bolted the E46 ICV bracket to the underside of the manifold. It all lined up pretty well and ends up plumbed exactly as an OBD-1 E36 325i/is would have it.

For now, I ran the CCV as follows. I cut off the plastic crankcase line about 6" down from where it leaves the VANOS unit, where it passes under the plenum. I then used sections of rubber hose and hose barb reducers until it was small enough to connect to a 3/8" hose barb tee. I teed it into the intake boot at the same place where the F-connector is on the stock E46 intake tube, so the fuel pressure regulator and the sucking jet pump are connected as stock. I capped off the dipstick tube where the CCV previously connected to it. My MAP connection is at the back vacuum port underneath the manifold, near the back of the plenum. And I deleted the purge valve and the charcoal canister. We never were controlling it with the MS. The brake booster line is cut short after the sucking jet pump and connected to the back of the plenum, topside, just like an E36.

Eventually I'll probably make up some sort of air/oil separator, but for now this will give enough crankcase vacuum to not hurt performance.
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Old 04-04-2014, 10:39 PM   #33
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Oh yeah?!
Uh... okay?
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Old 04-05-2014, 08:48 PM   #34
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Uh... okay?
I thought we were having a dyno showdown.
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Old 04-06-2014, 03:04 PM   #35
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You should just install a vacuum pump for the CCV and add a catch can before it gets to the pump. It seems to me feeding spent exhaust gasses back into the intake is going to hurt performance more that spending a few ponies to run an additional pump.
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Old 04-07-2014, 06:04 AM   #36
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It's definitely drawing too much vapor back into the intake with how I set it up. I'm going to go the catch can route to alleviate that. The engine is a good enough vacuum pump so I'll use that
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Old 04-07-2014, 02:19 PM   #37
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But then you aren't getting as much fresh air with oxygen as you could, and its not going to pull as much of a vacuum.
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Old 04-07-2014, 02:31 PM   #38
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Okay.
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Old 04-08-2014, 03:00 PM   #39
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I thought we were having a dyno showdown.
I didn't think we were. But if we were... wouldn't you want to post a strong dyno?

OOH BURN!

Just kidding.
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Old 04-08-2014, 03:35 PM   #40
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Quote:
Originally Posted by SoloII///M View Post
I didn't think we were. But if we were... wouldn't you want to post a strong dyno?

OOH BURN!

Just kidding.
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