Single turbo s55 tuners?

[b_w.]

Originally Posted by MoM2C

Why do you think ecutek isn’t an option?

Followed up with ecutek and they said it's not supported and not on the to do list. . Another tuner reached out and said the same thing. Bend said its possible but they won't do it.

[wheela]

Originally Posted by b_w.

Followed up with ecutek and they said it's not supported and not on the to do list. . Another tuner reached out and said the same thing. Bend said its possible but they won't do it.

I haven't worked with Motiv, but if my self tune journey doesn't work out that's who I'll probably turn to. They've got a solid rep in the n54 & n55 world. I've had some email communication with Chris there, you can tell he knows what he's doing. And he took the time to respond to me even knowing my plan A is to self-tune.

Doesn't Wedge tune the 4n car? Any reason you're staying away from them given their familiarity with the kit?

[b_w.]

Originally Posted by MoM2C

Have a word with chetrickerman. He’s a top guy who is currently running an Ecutek tuned single turbo S55 himself.

He is dual bank. Spoke to him and he confirmed no single bank compatibility.

[wheela]

Originally Posted by Schemxr

despite popular belief, 4n kits have an over boosting issue. and they’re ridiculously over priced. lmao

They're definately expensive, but an EFR turbo is almost $3k alone, and probably the best turbo you can get for a given flow range. So hard to say if it's over-priced?

I've seen a lot of people claim overboosting with internally gated EFR's, but I wonder if it's tune related? With the gamma titanium turbine, they'll respond quicker than a turbo with standard inconel or mar-m turbine, so they're probably less forgiving to tune. But just my .02, lol!

[chetrickerman]

Originally Posted by wheela

I've seen a lot of people claim overboosting with internally gated EFR's, but I wonder if it's tune related?

Where have you seen this? What turbo were they using? When is the car overboosting?

[wheela]

Originally Posted by chetrickerman

Where have you seen this? What turbo were they using? When is the car overboosting?

Just unsubstantiated second-hand claims on the forums from time to time. I feel like it's an urban myth, and am not buying it. Have you seen this with your EFR? I've got an 8374 I'll be putting on my n55, external gate though. I wanted to go internal gate to use stock vacuum wastegate control, but the internal gate kit I wanted got discontinued before I was ready to buy.

Edit: This CES kit was the only direct account of over boost I've come across. Obviously the people involved in this kit know what they're doing, but BW specifically designed their internally gated housing to handle the extra exhaust flow, and people running these turbos on other platforms don't seem to have this problem. So their issue perplexes me, not sure what was going on with it to cause the overboosting???

[Schemxr]

Originally Posted by wheela

They're definately expensive, but an EFR turbo is almost $3k alone, and probably the best turbo you can get for a given flow range. So hard to say if it's over-priced?

I've seen a lot of people claim overboosting with internally gated EFR's, but I wonder if it's tune related? With the gamma titanium turbine, they'll respond quicker than a turbo with standard inconel or mar-m turbine, so they're probably less forgiving to tune. But just my .02, lol!

why efr over a g35-1050? i heard the g35 is the best flowing for the amount of power rated

[b_w.]

Originally Posted by Schemxr

why efr over a g35-1050? i heard the g35 is the best flowing for the amount of power rated

There are a few comparisons on line comparing the g35 1050 vs 8374 and essentially the efr flows more at any given turbine speeds. The garrett has to spin significantly faster, has a smaller window, and runs out of steam earlier. While the 1050 is called a 1000hp turbo it moves out of the efficiency range much earlier.

Also price wise you are going to need an external wastegate and something like a motiv reflex to control it. Price creep happens pretty fast. Efr works with oem wastegate solenoids.

I have also heard from local shops that since running into financial problems garretts qc has been awful. That's from heavy duty trucks to tuner cars.

[wheela]

Originally Posted by b_w.

There are a few comparisons on line comparing the g35 1050 vs 8374 and essentially the efr flows more at any given turbine speeds. The garrett has to spin significantly faster, has a smaller window, and runs out of steam earlier. While the 1050 is called a 1000hp turbo it moves out of the efficiency range much earlier.

Also price wise you are going to need an external wastegate and something like a motiv reflex to control it. Price creep happens pretty fast. Efr works with oem wastegate solenoids.

I have also heard from local shops that since running into financial problems garretts qc has been awful. That's from heavy duty trucks to tuner cars.

This. Plus, with a titanium aluminde turbine that's roughly half the mass of the Garret's Mar-M turbine, I have a hard time believing the Garret can match the EFR in responsiveness (time-to-torque). The EFR's ball bearing cartridge is also significantly larger than the Garret's. The only draw back to the EFR it's physical size; the overall packaging takes up a lot of space.

[chetrickerman]

Originally Posted by wheela

Just unsubstantiated second-hand claims on the forums from time to time. I feel like it's an urban myth, and am not buying it. Have you seen this with your EFR? I've got an 8374 I'll be putting on my n55, external gate though. I wanted to go internal gate to use stock vacuum wastegate control, but the internal gate kit I wanted got discontinued before I was ready to buy.

Edit: This CES kit was the only direct account of over boost I've come across. Obviously the people involved in this kit know what they're doing, but BW specifically designed their internally gated housing to handle the extra exhaust flow, and people running these turbos on other platforms don't seem to have this problem. So their issue perplexes me, not sure what was going on with it to cause the overboosting???

Interesting, I do not have that issue with my 9280 and 0.92 A/R IWG turbine housing.

[b_w.]

Garrett vs efr comparison

[b_w.]

Parts arrived

[wheela]

Originally Posted by b_w.

Parts arrived

Congrats, looks great!!

[chetrickerman]

Originally Posted by b_w.

Parts arrived

Looks great! Love how simple it is

[summernightruns]

I ordered a 4N kit too, I am in the same boat looking for a tuning solution. Currently on BM3

[chetrickerman]

Originally Posted by summernightruns

I ordered a 4N kit too, I am in the same boat looking for a tuning solution. Currently on BM3

If you dont have a ported cylinder head, and are not mounting the primary O2 sensors on the downpipe, I can tune your single turbo with ECUTek

[summernightruns]

I'm not opposed to switching software

[b_w.]

Originally Posted by chetrickerman

If you dont have a ported cylinder head, I can tune your single turbo with ECUTek

Has anything changed since we last exchanged messages?

[chetrickerman]

Originally Posted by b_w.

Has anything changed since we last exchanged messages?

I edited my previous post. Still no single bank support with ECUTek

[Wanted_M]

Originally Posted by Beyond_Ill

No doubt, I'm sure it's possible but there's a reluctance to make that step in innovation. I asked Bend Calibration about it the other day but they wouldn't budge. Hopefully we'll see some progress in the upcoming months, this platform seems to be picking up again.

This is where I'm having a hard time understanding their reasoning behind this, all older cars ran that way one single primary O2 in the DP prior to cat and one after cat for decades, I understand the technological advancements with having them in manifold but is there something else that am I missing here?

[Beyond_Ill]

Originally Posted by Wanted_M

This is where I'm having a hard time understanding their reasoning behind this, all older cars ran that way one single primary O2 in the DP prior to cat and one after cat for decades, what am I missing here?

I honestly have no idea either. If I had to take a guess, it probably has something to do with emissions. Wouldn't look good on them, especially after the Green Speed act, if they essentially removed half of the O2s off the car. That's just my theory though until we get a confirmed answer.

[-Eidos]

Originally Posted by chetrickerman

If you dont have a ported cylinder head, and are not mounting the primary O2 sensors on the downpipe, I can tune your single turbo with ECUTek

I'm curious how a ported cylinder head complicates things?