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I'd like to see the manifold, too, wondering whether it's built with separate banks or not. Looks like a nice fit, though. I would also caution against the blanket. Had one E30/S52 top mount turbo...

This is all very exciting. Now if my stock turbos would just crap out, I'll have an excuse, uh I mean REASON, to upgrade :)

Odd, which one?

Just a thought: the original design will be a nice accompaniment to the ProEFI standalone. That will be one hellacious motor - drag, drift, or roadcourse! I have lots of S54 street...

Cliff notes: Engine was all wired and ready to test, but the cam trigger wheel pattern was throwing off the ECU. They had to rewrite some firmware in the ProEFI to properly recognize the cam...

That's someMASSIVE torque. Holy hell! :eusa-clap:

Guys, you also need to remember that the torque number the dyno displays is not the torque at the rear wheels, it's corrected between the known...

Correction to my post above: Not a 0.25bar absolute - it's a 1.25 bar absolute pressure sensor inside the manifold.

And I'm not familiar enough with water/meth injection theory and practice to...

We have electronic throttle, and no reported throttle failures caused by water/meth sprayed post IC. Also no MAF, just load calculated from two MAP sensors, one 2.5bar absolute pre throttle and one...

So this was solved by adjusting slack out of the wastegate actuators? I noticed significant boost target improvements and quicker boost control once I adjusted mine last spring. Also had a JB4...

Try sending an IM or email to the guys at Tischer BMW: http://getbmwparts.com/contact_form.html

Good read, albeit long as mentioned. Corrected some of my internal thought processes regarding torque and HP WRT shift points, as well.

The S52 engine is ubiquitious in BMW CCA and NASA club...

DCAFS - How old are your pre-cat O2s? Might want to consider changing them if they're anywhere near 50k miles. You can use two of the Bosch 17098, cheaper than the N54-specific 17102 for bank 2. You...

With the engine cool, do a partial disassemble. Pull the engine cover and cowl. Check all the vacuum lines for chafing or dry rot. Especially check next to the oil filter housing for chafed hoses -...

My guess is also something bad on the control side - vacuum leak/cracked hoses, bad solenoid(s), or WG shaft or actuator not closing the WG properly or at all. One turbo can't provide any boost if...

Metric Mechanic or Jim Blanton built 265 (spearate bell-housing transmission available on E30 M3 and 1985 535/635/735. Real strong. There was a guy in Florida with a red E34 535 turbo who swapped to...

I just jizzed in my pants. Have a lightly fire-damaged 335 at the shop that is going to auction, totalled by the owner's insurance (no meth, coil caught fire is all we can think of). If everything...

What kind of reprogram do you want? You can set options like having lights stay on after locking, etc, but the keys are locked to the CAS and DME as far as starting the engine.

Bahahahah! Too funny. Friggin underpants gnomes.

Interesting that you can swap the CAS, DME, and keys. Does that cover the central locking? What coding changes need to be made? Any at all?

I got faults on an MSV80 running a Bosch 040 pump on a stock EKPS, but it never hurt anything. It complained about the pump pulling 8 amps. Nothing ever set a DME fault or caused a drivability...

I'm putting an old Autronic SM4 on my S38 this winter. Anything is better than Motronic 1.1!!

The system is "returnless" in that there is no external return. There is still a pressure regulator, where other returnless systems simply change fuel pump speed to maintain a stable pressure with no...

Got a new DME for a different car, did not come programmed. Requires a dealer or Autologic to completely program a new DME. Coding is different than programming, with programming being the more...

Wow, you guys are really putting your money where your mouth is.

The BMW DMEs have been monitoring coil flyback for a long time - helps detect misfire due to a weak or dead coil. I don't even know...

Yep. I did mine last Fall when I bought the car. 3 of 6 ports were wet with oil, the rest just dry carbon. Horrible, thick, gunky buildup, but they cleaned up nicely.

Fast forward 16k miles and a...

Holy crap, that is one exceptionally eloquent and complete "come to Jesus" talk if I've ever heard one. I have no dog on either side of this fight, just interested to see where this has detoured.
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That's the goddamn truth.

I've had the "pleasure" of diagnosing misfires and cold-start roughness on a few N54s lately, and I think there may be more to this PCV/valve cover issue. If you still...