How much boost do you hold to redline?

[Davdraco1]

So a little background on my car. It's tuned for 22 psi, which it has no trouble making but it tapers down quickly to 10 psi around 5500 and up. Car has full exhaust, TP, silicon TIP, so I know that's no collapsing. Maybe this is normal, maybe it's not. What should it be at by redline?

[pgiuliano98]

Pretty sure that since the ko3 is such a small turbo it can't hold that boost past 5500ish.


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[RagtagXMASTER]

I have an 01 a4 auto i have a stage 1 apr tune forge splitter dv and a n75 race valve spikes to 19 holds at 18 to redline


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[Davdraco1]

Oh, forgot to mention I have a frankenturbo turbo manifold too.

[Davdraco1]

I did a second gear pull today and I was down to 7psi at redline. Somethings got to be wrong.

[xdewaynex]

Sounds like you might have a nice sized boost leak.

[Turbo_B5]

Sounds like you might have a nice sized boost leak.

x2.

daz said this to me when he was tuning my car: "by 5500rpm the k03s is out of juice can't even make 11psi"

[Davdraco1]

The car boosts to 22 psi no problem lower in the rpms tho....

[Bordom]

About 380 to redline...

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[Davdraco1]

About 380 to redline...

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380 what?

[tar]

380 what?

He's posting the same lame thing in 2x threads. Canadian humor i guess.

[GrapeBandit]

x2.

daz said this to me when he was tuning my car: "by 5500rpm the k03s is out of juice can't even make 11psi"

did i miss where daz said "by 5500rpm the k03s is out of juice can't even make 11psi"?

boost leak test will find your problem

[Bordom]

380 what?

Hold on...

He's posting the same lame thing in 2x threads. Canadian humor i guess.

Nailed it lol

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[Turbo_B5]

did i miss where daz said "by 5500rpm the k03s is out of juice can't even make 11psi"?

boost leak test will find your problem

That was what he said after I sent him some pull logs, asking him how to get more boost.

[thrilos5]

Boost leak for sure

[Davdraco1]

These god damn Canadians! Lol. I'll do a boost leak test hopefully Monday after my tester arrives. The lady is bringing it back from home for me. Will report back as soon as I know.

[Avant Nate]

About 380 to redline...

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i get it

[Davdraco1]

Please explain then.

[Bordom]

Please explain then.

Look for user redline380 lol

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[Davdraco1]

I found him, now what??? Lol

[Dan[FN]6262]

K03 and K04 fall on their faces past 5500 rpms.

You can't do anything to make it better other than getting a bigger turbo. But that's a different topic altogether.

[Dan[FN]6262]

I have an 01 a4 auto i have a stage 1 apr tune forge splitter dv and a n75 race valve spikes to 19 holds at 18 to redline


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Post logs.

[csosnowski]

Post logs.

Indeed.

[RagtagXMASTER]

i would but sadly almost right after i posted the turbo in the car blew up RIP. too much bost and its dead, worst part is, its an oem borgewarner replaced about 1 year ago

[Bordom]

i would but sadly almost right after i posted the turbo in the car blew up RIP. too much bost and its dead, worst part is, its an oem borgewarner replaced about 1 year ago

Lol wut? Blew up the motor in a k03? I find that hard to believe

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[Believer]

I haven't logged my new file from Motoza to view the actual data but by the gauge I spike 24 and hold 23 through most of the rev range, tapering to 22 at 7k. Hoping to get some logs in the next day or so and can post a graph. F21 MF turbo

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[RagtagXMASTER]

No car still runs turbo is making the awful drilling sound. Much upset


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[Dan[FN]6262]

i would but sadly almost right after i posted the turbo in the car blew up RIP. too much bost and its dead, worst part is, its an oem borgewarner replaced about 1 year ago

Lies

I haven't logged my new file from Motoza to view the actual data but by the gauge I spike 24 and hold 23 through most of the rev range, tapering to 22 at 7k. Hoping to get some logs in the next day or so and can post a graph. F21 MF turbo

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F21 =/= K03

[Believer]

Lies



F21 =/= K03

Never stated or implied it was. The thread title is vague and non-specific so I posted my experience.

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[Dan[FN]6262]

How you liking that turbo? Seems like it would be a great daily driver.

[Believer]

How you liking that turbo? Seems like it would be a great daily driver.

For me it is just about perfect for a daily driver. It makes boost pretty low rpm and pulls damn strong to redline. I get full request boost by just about 3k rpm and have usable boost as low as 1.8k because of the mixed flow turbine. I'd definitely recommend it!

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[RagtagXMASTER]

[QUOTE='Dan[FN]6262;11626958']Lies


Sadly im not lying. I loved driving my car around the way it was. Now i hate the thing. Either parting it out or sell it as is

[Dan[FN]6262]

For me it is just about perfect for a daily driver. It makes boost pretty low rpm and pulls damn strong to redline. I get full request boost by just about 3k rpm and have usable boost as low as 1.8k because of the mixed flow turbine. I'd definitely recommend it!

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Sounds like it'd be great fun on twisty back roads. What software are you using?

[Believer]

Sounds like it'd be great fun on twisty back roads. What software are you using?

Dave @ Motoza is doing my tuning. Once I get my misfires squared away I will get some decent graphs posted to my build thread.

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[redline380]

About 380 to redline...

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You hold this bike till redline?

[Bordom]

You hold this bike till redline?

LOL I make so much torque, I kink all my chains

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[Davdraco1]

The intent of the thread was to see what all the people running their stock turbo hold until redline. I should have been more specific. But it is cool to see what other turbos hold to redline and where they run out of power. Still useful.

[Dan[FN]6262]

Full boost with my EFR is 4k, holds 30psi to 7.5k rpms.

[rodgertherabit]

I hit 15-20psi within 3-3500k rpm, tops. Holds till I say so haha.

Gtx2867r which should hold boost well past 22psi till redline.

[Dan[FN]6262]

I hit 15-20psi within 3-3500k rpm, tops. Holds till I say so haha.

Gtx2867r which should hold boost well past 22psi till redline.

I tuned a B7 running a 2867. I could get the TSFI to hold 34psi until redline, which I think was 7.5k on that engine, and made 412awhp/371awtrq on meth. They're fun turbos.