Monty’s Single Turbo -> Back to Twins (Compound)

[Monty23]

Guessing you don't want to run a scavenge pump?

It's not completely out of the question, but that's like plan G. Adds a lot more complication to ensure the turbo cartridge doesn't get sucked dry...

[Monty23]

So in typical fashion, I decided to design a -12an upper oil pan fitting to replace the 034 -10an fitting (any interest in these -12 fittings?). I will hopefully get it back together this weekend with the -12an return line and turbosmart oil pressure regulator to confirm my oil issues are behind me. I was also able to reclock my CHRA from -15° to -8° thanks to some insight from Levi, which will also help.

[Monty23]

Oh, I forgot to share my PS Pump delete bracket setup. I had to order at least 10 brackets to keep the piece part cost down, so if anyone wants a bracket, pulley, nuts/bolts, and belt setup - PM me.
If you wanted to delete your pump to use a hydroelectric pump (MR2) or electric power steering column (Prius), this takes the guesswork out of deleting your pump and adding a pulley for the serpentine belt.

[krunkle]

That is thinking outside the box 👍. Are you upgrading the alternator to provide a cushion on the electrical system? I’ve been debating the same conversion myself and placing the pump in the trunk because they are not quiet.

[Monty23]

I have a prius electric steering column on the shelf. Going to see if I can get that bulky thing to fit.

[Monty23]

Here's the difference between a -10AN (~1/2" ID) fitting, the -12AN (~5/8"ID) fitting, and the s300 CHRA drain. The adapter I made has a 5/8" ID and allows a 3/4" compression fitting to attach. So from the pan fitting, I will use a 3/4" compression to -12AN adapter.

[Monty23]

So I wasn't able to get the 034 -10AN oil pan adapter out of the upper pan. I'll have to pull the engine to remove it. So instead I just ran the turbo smart oil pressure regulator with the -10AN return line and it seems to be working along with the improved clocking of the CHRA. I'm about 8° from level according to my phone's bubble level app.

Here some more details in this video I made:

[Monty23]

Teaser: here's what spring pressure looks like from the PT5858 with this new setup. I'll be sweeping through about 30 psi with an MBC on the 5858 to see where the s372 wants to spool quickly with this T4 1.27AR hot side.

[Monty23]

So far this setup makes 15 psi at 3800 rpm, but my big turbo wastegate (which only has a 6psi spring in it) is blowing open due to EMAP at 15psi MAP pressure and not allowing me to make more than this 15psi (and therefore the big turbo won't spool either). I swapped the spring out for 16psi set of springs and will test that tonight. So I'll have to live with base boost around 30 psi Car is running real smooth otherwise

[Monty23]

So the 15 psi spring for the big turbo wastage did the trick! She starting to feel like her old self again
This is 0 WG DC, no boost control yet.



Also, keep in mind I am running a B6 A4 3.0 01E that has shorter gearing than the stock 01E.
I will convert FATS using the following table moving forward so that I can compare my FATS to B5 S4 01E S4s.



B6 A4 3.0 01E


B5 S4 01E

[Monty23]

Some boost tuning logging.

[Monty23]

Just grabbed some logs to tune the boost control maps, but the setup feels really good in the driver seat

50% WGDC which is the highest I want to push this bottom end.

[b518]

Damn that's a fast fats

Sent from my SM-N986U using Audizine Forum mobile app

[LJS]

Just grabbed some logs to tune the boost control maps, but the setup feels really good in the driver seat

50% WGDC which is the highest I want to push this bottom end.

DAMN- that's not quick---that's STUPID FAST-----
Nicely done!!!!!!
(show-off!!!!!!)

[Imho]

looks crazy fast.. waiting for 60-130 mph or 100-200 pulls
great job man

[Mikse]

What fuel?

[Mikse]

I will hopefully get it back together this weekend with the -12an return line and turbosmart oil pressure regulator to confirm my oil issues are behind me.

Did the Turbosmart oil pressure regulator help your smoking issue?

[Monty23]

Hey guys, yeah it's getting quicker than it was when STK for sure. Hopefully, I'll have a draggy here shortly to show where the car stands.
As for the oil pressure regulator - the car was never smoking, but I did notice the s372sxe was getting some oil pooling in the compressor housing due to improper clocking and its non-ideal position (CHRA leaning 8* towards the compressor housing). Between correcting the clocking and the TS oil pressure reg, the oil issue is now under control. I am not seeing any oil in the IC piping. Next time the engine comes back out I will be installing a larger 3/4 inch ID (19mm) drain line too.

Edit: Fuel is E85 (currently E79)

[Monty23]

Baseline Dragy and log. More to come.

[Imho]

hmmm what happen with your boost ? few posts above you have had 37psi and now 31--> 24psi - I assume different tune ?

[Monty23]

hmmm what happen with your boost ? few posts above you have had 37psi and now 31--> 24psi - I assume different tune ?

Yea this is what the setup does with 0% WGDC (remember the big turbo is the one controlled by ECU, small turbo is on an MBC that I optimized to spool the big guy quickly).
38psi was just one log for tuning purposes. Once fueling is perfect, the power will be turned back up.

[Silverex]

This is your temporary block and not the welded/girdle one right? What’s done to this block?

Nice work 6.59 on moderate boost is pretty good!

[Monty23]

Same bottom end from winter 2012 (page 1 of this thread). Simple H-Beam rod swap with about 48k miles on it now since the build.

[Blazius]

6.5 is stupid fast in the grand scheme of things. Who's tuning this btw? I can do it if not, also can probably do proper SD setup on it. Not sure if you are running a MAF or running limp mode alpha N, didnt read whole ofcourse :)

[slow ride]

Same bottom end from winter 2012 (page 1 of this thread). Simple H-Beam rod swap with about 48k miles on it now since the build.

Man that was some time ago now. 10 YEARS ago lol. It's sweet that the simple engine setup has been that good to you can't wait to see this thing turnt up ;)

[Monty23]

6.5 is stupid fast in the grand scheme of things. Who's tuning this btw? I can do it if not, also can probably do proper SD setup on it. Not sure if you are running a MAF or running limp mode alpha N, didnt read whole ofcourse :)

Philadot is tuning it, he has been very good to me and I am very happy with his work (full flex fuel is nice). Running a HPX MAF in a 3.5" housing in blow thru. I'll probably need to move to the HPX-E though with the new bottom end and more power.

Man that was some time ago now. 10 YEARS ago lol. It's sweet that the simple engine setup has been that good to you can't wait to see this thing turnt up ;)

Crazy how time flies. If you noticed, I added an index to my 1st page because I was sick of clicking through 40 pages to try and find some info from years ago LOL!

[CELison]

EDIT: Nvm

[Blazius]

Philadot is tuning it, he has been very good to me and I am very happy with his work (full flex fuel is nice). Running a HPX MAF in a 3.5" housing in blow thru. I'll probably need to move to the HPX-E though with the new bottom end and more power.


Crazy how time flies. If you noticed, I added an index to my 1st page because I was sick of clicking through 40 pages to try and find some info from years ago LOL!

Heh I know him(off nefmoto) hes good atleast. You could ditch the MAF with the SD setup and run a 3bar MAP in the mani/off the mani :)
Im surprised he didnt actually develop an SD for ME7 yet.

[Monty23]

Heh I know him(off nefmoto) hes good atleast. You could ditch the MAF with the SD setup and run a 3bar MAP in the mani/off the mani :)
Im surprised he didnt actually develop an SD for ME7 yet.

I was actually planning to use speed density that Bische developed back in 2014 before I started working with Philadot. Never went that route, obviously. I would be interested in exploring SD with MAP/EMAP pressure ratio as the load axis someday.

[NOTORIOUS VR]

Impressive results for sure, can't wait to see the progression.

This setup would seriously benefit going to a standalone setup like MaxxECU IMO. There's a lot of complexity to this, and logging many points of data will be your friend here from EGT's to back pressures, inlet pressures, IC efficiency and so forth. Never mind being able to create and control boost control strategies that would likely benefit you in this situation quite a bit more.

[Blazius]

Heh notorious thats a name I havent seen on nefmoto in any recent posts :)

I've been running SD on my 1.8T for over a month+ now, and it works decent. Didnt even have to modify intake mani, just using a Ford MAP with hose connection,perfect for this application.

I disagree with the standalone route.

[Monty23]

I am definitely considering standalone in the future. It would be awesome to have the additional I/Os and modern tuning features.
I spent some of the weekend deleting my center muffler to give it some sound back. I also have a v band on the muffler inlet in case I want to try no muffler/straight pipe for fun.

[Monty23]

She back getting retuned at high boost. My pumps were struggling at 35+psi so I tried a kenne bell boost a pump on my external bosch 044 and it seems to be working. Now to continue pushing forward again.




Fuel pressure issues:




Bosch 044 at 17.5V is working much better now:

[Monty23]

Some testing last night with that boost profile above. Excited to see how she does with the boost ramping up to 8k instead of falling off (just about done tuning the boost controller).

[Silverex]

Nice man!

Did you shift super slow or is it that slow getting back into boost? I’m guessing mid to high 5s once that’s addressed.

[Monty23]

Nice man! Did you shift super slow or is it that slow getting back into boost? I’m guessing mid to high 5s once that’s addressed.

The shift took about 600ms, so I am sure I can knock that down with practice. Also, the boost controller still hasn't been turned on yet to optimize spool. It took about another 750ms to go from 6psi->30psi. There is still more left to do, this is just an update on where its at.

[e30bum]

Seems like you achieved some decent results with that pump booster. I'm interested to see how your pump holds up with the extra voltage being applied. Also I definitely think you should upgrade to standalone lol

[s4rmm]

Throttle plate angle drops to 60% at 5500rpm?

[Monty23]

Seems like you achieved some decent results with that pump booster. I'm interested to see how your pump holds up with the extra voltage being applied. Also I definitely think you should upgrade to standalone lol

I need to pass PA emissions and I would need to figure out how to make that happen with standalone. I'm sure it can be done with these latest units, I am just not experienced here and haven't been educated yet. The obvious answer would have a PNP standalone that I could just swap in ME7 for emissions testing day.

Throttle plate angle drops to 60% at 5500rpm?

Correct, these logs were collected in order to tune the boost control maps. So throttle is helping to control boost until the controller is all setup, from what I understand.

[Imho]

Some testing last night with that boost profile above. Excited to see how she does with the boost ramping up to 8k instead of falling off (just about done tuning the boost controller).

good job, can you post also 100-200km/h ?