The Turbos+EU5+LiftKit thread

[heitzke]

Originally Posted by RSXDC5

The lower the gear, the greater the shift speed delay. The delay is mostly all gone once you reach the 3-4 shift (and above).

Ok noted - I've admittedly not done a ton of hard shifting from 2-3 but i'm extra curious now. I'll have to go take a spin later and see how it is.

[Bluer2]

great setup

[farbmw]

Hey I have a question, are you able to install everything and code the injectors then able to drive the car until you are able to get a custom tune?

[Simon P.]

Originally Posted by farbmw

Hey I have a question, are you able to install everything and code the injectors then able to drive the car until you are able to get a custom tune?

No. You need a custom tune. The fuel tables need to be scaled for the added flow of these injectors. Coding them into the DME has nothing to do with tuning for them.

[farbmw]

Originally Posted by Simon P.

No. You need a custom tune. The fuel tables need to be scaled for the added flow of these injectors. Coding them into the DME has nothing to do with tuning for them.

So everything has to be done at the sometime, who did your tune?

[TopJimmy]

Originally Posted by Simon P.

No. You need a custom tune. The fuel tables need to be scaled for the added flow of these injectors. Coding them into the DME has nothing to do with tuning for them.

+1 on Simon's reply. Must be custom tuned, not simply coding in ISTA.

For tuners there's ABP, (F80)Paul Johnson, and HCP confirmed successful. I'm sure Cary(theLabelGuy) Jordan can do these tunes too, just haven't heard of this specific setup done by him yet.

[Commanderwiggin]

Bend Calibration also does EU5, Dorch Lift Kit and Motiv Reflex tuning.

Attached is EU5, Dorch Lift, PR LPFP with PS2+

[TopJimmy]

Commanderwiggin
Was that on E85? I saw the bumped up LPFP.

[heitzke]

Currently working through some additional fueling considerations as well on the LPFP side. I'm waiting to hear back from Paul on what the the path forward looks like after the EU5 and Dorch are in.

In the meantime i've been back talking with Bend Calibration on tuning and at least weighing out options on maybe swapping over to ecutek. At their rec i've also been seeing what options I have on the LPFP side.

All of this has led me down a rabbit hole of course, and seems that EOS is at least seemingly working on a LPFP control module that would work directly with the DME and control whatever pump as it would a factory unit vs the secondary pump w/ hobbs switches, etc. They offer this for the N54, N55 and then I see that the S55 is in the select field, but not available for purchase.

I'll let yall know when I hear back. Price point aside I like the concept of a single pump being controlled in this manner.

[TopJimmy]

Originally Posted by heitzke

Currently working through some additional fueling considerations as well on the LPFP side. I'm waiting to hear back from Paul on what the the path forward looks like after the EU5 and Dorch are in.

In the meantime i've been back talking with Bend Calibration on tuning and at least weighing out options on maybe swapping over to ecutek. At their rec i've also been seeing what options I have on the LPFP side.

All of this has led me down a rabbit hole of course, and seems that EOS is at least seemingly working on a LPFP control module that would work directly with the DME and control whatever pump as it would a factory unit vs the secondary pump w/ hobbs switches, etc. They offer this for the N54, N55 and then I see that the S55 is in the select field, but not available for purchase.

I'll let yall know when I hear back. Price point aside I like the concept of a single pump being controlled in this manner.

I asked Paul about how best to progressively control the 2nd LPFP when I eventually plumb PI into my EOS manifold and he said he can program a Motiv Reflex+ to ramp in the secondary based on boost and RPM.

I like progressive control over a Hobbs and a fuel pressure regulator because the Reflex+ monitors for faults.

[MJ6]

Originally Posted by RSXDC5

The lower the gear, the greater the shift speed delay. The delay is mostly all gone once you reach the 3-4 shift (and above).

Not to derail this thread too much, but I'm wondering if upgrading the clutch line could help with the slow shift issue.

On the stock slave cylinder, the hardline from the master is interrupted by a section of rubberized line (picture below for reference). I'm assuming that this may offer some amount of deflection during clutch pedal depression, especially given a higher resistance pressure plate. Previous generation BMW's have steel braided line options available, but not so on our platform. I'm wondering if it would be possible to somehow splice/crimp in a steel braided line in place of the rubberized OEM one, and if it would have any effect.

[E92inSG]

I’m (maybe stupidly) going the route of EU5’s with stock pumps on my flex fuel PS2 HF PI meth setup with ecutek and Bend.

Taking things step by step instead of all at one go.

Currently with stock injectors with PI meth I’m apparently running out of fuel above E60.

We will see what, if any, differences the EU5 injectors make on their own.

Injectors go in tomorrow with a new file from Bend, and next week cleaning up the tune on a dyno.

HPFP and LPFP possible considerations pending outcome.

Anyone done EU5 on their own with high E% and hybrid turbos ?

[Simon P.]

Originally Posted by farbmw

So everything has to be done at the sometime, who did your tune?

Ian and the team of calibrators at Bend Calibration.
He tuned my flexfuel enabled FBO set-up last summer and when I decided I was doing the EU5/Dorch lift kit this winter he was my first choice because of the amazing work he'd done. Currently (as in right now, this week) swapping in Kratos EVO turbos and you can guess who's gonna be tuning those when the weather get nice.

[Commanderwiggin]

Originally Posted by TopJimmy

Commanderwiggin
Was that on E85? I saw the bumped up LPFP.

Full E85…it's a friend of mine and he actually turned it up a bunch more as well from what he said.

[Bluer2]

Originally Posted by Commanderwiggin

Full E85…it's a friend of mine and he actually turned it up a bunch more as well from what he said.

turned it up? built motor or stock motor?

[Commanderwiggin]

Originally Posted by Bluer2

turned it up? built motor or stock motor?

Built

[E92inSG]

Got my EU5's installed today and flashed the updated file from Bend. Car started up and drove flawlessly.

Car is scheduled for remote dyno tune session next week to see how much more we can push the ethanol content with these new injectors and stock pumps.

PS2 HF
Built bottom end
PI meth
Fueling currently maxed out at E60 on stock injectors

[carbon-14]

With upgraded fuel components and turbos, what would be the next thing that limits how much we can safely push these cars? * mind being a DCT. I'm very new to this platform and still trying to do my research

I currently have purchased HPFP, LPFP, EU5's, top mount intercooler, catless downpipes, mid pipe, catback, crank hub, cold air intake.

I'm still researching which turbos to go with but all the good things I'm reading about KRATOS, really makes we want to go that route… just waiting for a deal/sale to fall in my lap. lol

[MJ6]

Originally Posted by carbon-14

With upgraded fuel components and turbos, what would be the next thing that limits how much we can safely push these cars? * mind being a DCT. I'm very new to this platform and still trying to do my research

I currently have purchased HPFP, LPFP, EU5's, top mount intercooler, catless downpipes, mid pipe, catback, crank hub, cold air intake.

I'm still researching which turbos to go with but all the good things I'm reading about KRATOS, really makes we want to go that route… just waiting for a deal/sale to fall in my lap. lol

Aside from the "power-making" components like the injectors, turbos and downpipes, the limiting factor is the "power-supporting" components like engine build and drivetrain.

On the stock bottom end (stock rods and pistons) you're limited to how much you can push them before they give: typically it's been seen that stock rods start to reach their limitations at around 700wtq, so most tuners will limit torque on a stock system. Upgrade those parts like some in this thread are doing, and you can run higher numbers due to the increased strength of beefed up engine internals. Head wise you start to see valve float around 800whp, so that starts to be a limiting factor at some point as well.

At the same time, you have to look at how that power is transferred to the ground, namely the transmission and driveline. Both the stock DCT and 6spd can handle a decent amount of power, but at a certain point won't be able to hold it. Clutch upgrades become the next point of limitation. If you get into drag racing and the like where sudden torque from accelerating off the line will induce increased stress, you may find yourself needing a stronger driveshaft or axels.

[TopJimmy]

Originally Posted by carbon-14

With upgraded fuel components and turbos, what would be the next thing that limits how much we can safely push these cars? * mind being a DCT. I'm very new to this platform and still trying to do my research

I currently have purchased HPFP, LPFP, EU5's, top mount intercooler, catless downpipes, mid pipe, catback, crank hub, cold air intake.

I'm still researching which turbos to go with but all the good things I'm reading about KRATOS, really makes we want to go that route… just waiting for a deal/sale to fall in my lap. lol

It sounds like you've got all the goodies just short of doing a built motor and driveline. Your current limit would be your connecting rods and the DCT clutches. Your tuner would limit TQ to 700 so you don't risk bending stock rods. Around 800TQ eats stock clutches.

Next step is a jump…add PI for more E85, aftermarket rods, beefed up clutch packs, driveshaft & axles.

If you can find PS2+ on the cheap those are great. KRAS55Bi/Ti are also great. KRAS55EVOs (what I'm trying) is a little out on the edge for daily driver use (pinhole oiling requires more upkeep and slightly thinner oil weight than the Pures or the K-Bi/Ti).

Make sure a CBC goes over your hub fix.

[carbon-14]

Thanks for replies TopJimmy & MJ6.

I also have an EOS manifold that will probably get thrown in but not so sure about running PI…. For now anyways.

I plan to daily drive the car; wanting something reliable with good daily driving manners with ability to switch tunes on the fly when switching from pump gas to full E85. It seems their are a few good tuners that have figured out the recipe for the EU5's with turbos on these cars.

[RSXDC5]

Local shop has recently had multiple sets of Kratos fail, the evo's I believe…this was on built and non-built engines.

Really surprised me to hear this but want to pass it along to the community.