B8 Ko4 owners follow up thread

[Jake@JHM]

Well, keep me in mind. Probably one of the few guys with a K04 on a ZF6 right now on the board.

Will do. We are tuning a ZF6 A4 in our shop right now with our K04-R and all of our hardware

[bb-tt]

Dang. Beating some 8 spd auto cars with a 6 spd manual while being on 91 octane. Pretty impressive

These guys will probably say your driver took his left shoe off for a “TCU tune” so it doesn’t count. 🤣 You know, for quicker shifts. The sock mod.

Also not running sustained 28 PSI so it looks like my speculations are pretty on point


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You really do have trouble comprehending numbers.

[TylerJDubbs]

It’s too bad we didn’t put money on it. My speculations are more accurate than a lot of people’s facts around here.

If you want to man up and send me 20 bucks, I’ll accept it.


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what?

how much is 2.8bar absolute in relative pressure PSI? with a Barro of 1.000 to keep it realistic and easy

[Jake@JHM]

what?

how much is 2.8bar absolute in relative pressure PSI?

Depends on your ambient pressure. 2.8bar will be different based on your location in terms of actual boost. You can log height correction and do the math to get actual.

[TylerJDubbs]

Depends on your ambient pressure. 2.8bar will be different based on your location in terms of actual boost. You can log height correction and do the math to get actual.

fixed it... more of a rhetorical question lol

[EvolutionArmory]

what?

how much is 2.8bar absolute in relative pressure PSI? with a Barro of 1.000 to keep it realistic and easy

What?

I said I bet they probably didn’t run 28 psi to get there. They didn’t. It was a very simple statement. Very simple.

If you are tuning these cars to run lower than 28 psi now, good. Finally. You gotta stop encouraging these guys to just throw boost at these engines. Their results don’t really look favorably towards your abilities when OTS tunes are way more consistent.

If one of these guys windows their block, that’s on you, not them.




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[Nano909]

To be honest, idk what run that is. Our 2011 A4 is a 6MT so the listing of TCU tune is wrong. An employee could have been out messing with the shop car and our draggy. The fastest I personally remember going on 91oct was [email protected] last summer. The gearing of the B8 A4 6MT not ideal for 1/4 mile. We went much faster with the automatics.

91 and 93 is vastly different. ESPECIALLY on a boosted car. 91 octane SUCKS. We pick up over 3mph by switching to 93 octane. We don't use meth on our cars as we want our runs to be as close as possible to what most customers will be using, so only basic upgrades required for the given stage.

The largest spike I have ever seen in our logs it 26psi and we have it taper off to ~17psi after 7k. Keep in mind this was on a 6-speed manual trans, so the load is different if comparing to an automatic.

Thank you for being honest and not trying to mislead the consumers. Too bad some people here (EA) won't be able to comprehend your first paragraph.

[TylerJDubbs]

What?

I said I bet they probably didn’t run 28 psi to get there. They didn’t. It was a very simple statement. Very simple.

If you are tuning these cars to run lower than 28 psi now, good. Finally. You gotta stop encouraging these guys to just throw boost at these engines. Their results don’t really look favorably towards your abilities when OTS tunes are way more consistent.

If one of these guys windows their block, that’s on you, not them.




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The target peak boost pressure while tuning has always been 2.8-2.85bar absolute, this has resulted in a 12.73 1/4 car on 93 only, full weight Avant, OEM wheels and exhaust minus HFC.

Not sure how that speaks poorly on my abilities

Once again total speculation throughout the whole reply spouted like its a fact..... you cant prove anything in this post or even back it up at all with SOME data so why say anything at all?

[bb-tt]

Logged a couple runs Monday night ambient pressure was 1011 mb so peaked ~26psi.

[EvolutionArmory]

Thank you for being honest and not trying to mislead the consumers. Too bad some people here (EA) won't be able to comprehend your first paragraph.

BB posted that JHM draggy run from the leader board, not me.


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[EvolutionArmory]

I think Jake needs to confirm who in his company made that run and with what car.

If it ran that time and is actually a 6MT, that’s crazy.


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[Nano909]

Hey everyone if you report EA he'll get banned again.

[72defender]

Hi all,

Am new here and new to the tuning scene-my question may reflect that.

Hoping this is the right place to ask this question. Thanks in advance for any and all insight.

Currently in the market for a K04 and one of the options I’m looking at is the CTS TR 1070. It’s advertised as 350bhp/340btq, but by the time the other parts I have are mated to the car, I’ll be looking at another 30-40 bhp. On top of that, I’m looking at IE’s 100 Octane tune. So with the extra parts and water/meth, just wondering if any potential issues going over the advertised power numbers by that much?

Thanks!

[72defender]

Forgot to add I have a B8.5 A4 for reference purposes.

[bb-tt]

Forgot to add I have a B8.5 A4 for reference purposes.

I am a IE fan but if you have an 8.5 i would go with apr if you have access to e85. Also that 350/340 is with the addons you are not going to add another 50 hp with an ic, exhaust... you will not make the advertised power without the typical addons

Edit: click the dyno thread i linked earlier you will see no-one was making anywhere near the numbers that are advertised.

[Spawne32]

lol But those trash tunes are on sale according to IE's recent post. So tempting if you have a K04 and want to be slower than everyone else.

[Nano909]

lol But those trash tunes are on sale according to IE's recent post. So tempting if you have a K04 and want to be slower than everyone else.

13.3-13.5 in the 1/4 lol

[72defender]

APR is certainly an option...So can I deduce the CTS K04 should be able to handle the additional power?

No E85 for me, my A4 is a 6MT.

[SNice]

Question about overboosting and throttle cuts...
Does anyone know if the throttle cut is triggered at a specific boost level?

My understanding was that the throttle cut boost value was a hard limit set by the ECU and could not be altered. So I’m curious how the custom tunes are setting higher boost levels - are they tricking the ECU?

In looking at my logs, it seems that any boost level for me over around 23psi results in a throttle cut. I don’t want high boost values (I’m actually trying to turn it down)- just curious how they are achieved on the custom side?


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[TylerJDubbs]

Question about overboosting and throttle cuts...
Does anyone know if the throttle cut is triggered at a specific boost level?

My understanding was that the throttle cut boost value was a hard limit set by the ECU and could not be altered. So I’m curious how the custom tunes are setting higher boost levels - are they tricking the ECU?

In looking at my logs, it seems that any boost level for me over around 23psi results in a throttle cut. I don’t want high boost values (I’m actually trying to turn it down)- just curious how they are achieved on the custom side?


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there are two accessible modules in HPT from factory that have throttle based intervention on Overboost one is set at .20bar (3psi) over and the other is set to .45-.40bar (6-7psi) over request from factory

[SNice]

there are two accessible modules in HPT from factory that have throttle based intervention on Overboost one is set at .20bar (3psi) over and the other is set to .45-.40bar (6-7psi) over request from factory

Thank you! Thant makes sense. So it’s not a hard limit but a limit over requested. Is it safe to assume the factory level is 3psi over requested? If so, as long as that is not exceeded - I should not have any throttle cuts.

Why are there two levels 3 and 6-7? (Hoping it’s a simple answer).


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[TylerJDubbs]

Thank you! Thant makes sense. So it’s not a hard limit but a limit over requested. Is it safe to assume the factory level is 3psi over requested? If so, as long as that is not exceeded - I should not have any throttle cuts.

Why are there two levels 3 and 6-7? (Hoping it’s a simple answer).


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Yes they are based on actual vs requested boost

One is for load/boost intervention and the other is for throttle intervention

[SNice]

Yes they are based on actual vs requested boost

One is for load/boost intervention and the other is for throttle intervention

Perfect! Thank you!

The HPT tuning tool is fascinating. It’s definitely on my list of wants. I’d love to take a deeper dive into the tuning world but I’m just not ready for that learning commitment (yet)- trying to keep it shallow knowledge for now. I’ve already learned “too” much about this car. Lol.


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[Spawne32]

Perfect! Thank you!

The HPT tuning tool is fascinating. It’s definitely on my list of wants. I’d love to take a deeper dive into the tuning world but I’m just not ready for that learning commitment (yet)- trying to keep it shallow knowledge for now. I’ve already learned “too” much about this car. Lol.


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We moved most of the conversation off the forum regarding HPT because of EA, you're welcome to shoot me a PM if you are ever interested in discussing HPT tuning more.

[Traptalk]

Stumbled across a APR k04 vs IE K04 tune discussion for the mk5/6 GTI’s on Facebook


There was several guys in that discussion claiming the latest apr file v3.2 hits a 28 psi spike in 4th gear. Having apr I tried this myself and saw the same boost I would had I did a log in 3rd.


But in the comments section look who chimes in

It’s Perry’s personal tuner aka the owner of IE



Lol did I really fall for that? Can the gti software be that different than their b8 software? Is it an auto vs manual thing?

Or did these guys make a discovery like I did that you can up the wastegate preload and make a little more boost without over boosting ? But 28psi? There were a few guys making that claim.

I don’t even see 15* on 93 lol I see closer to 13.5*

[Nano909]

"Stumbled" you say. 🤣

[didyouseethat83]

Who is in central PA with a APR stage 3 b8.5? I’m trying to run an APR car against my IE k04 car


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[flowhigh]

Who is in central PA with a APR stage 3 b8.5? I’m trying to run an APR car against my IE k04 car


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Would make a great youtube vid. I'm pretty sure the APR stage 3 would have you beat unfortunately. Especially on E85..it would smother IE's stage 3.

[JLAllroad]

Would make a great youtube vid. I'm pretty sure the APR stage 3 would have you beat unfortunately. Especially on E85..it would smother IE's stage 3.

This ^ but I would love to see the results..and a dragy


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[Shane Horning]

Who is in central PA with a APR stage 3 b8.5? I’m trying to run an APR car against my IE k04 car


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I'm gonna be installing a k04 on my buddies a4 in a couple weeks. Hes from central pa somewhere. Mabe he could arrange something

[didyouseethat83]

Would make a great youtube vid. I'm pretty sure the APR stage 3 would have you beat unfortunately. Especially on E85..it would smother IE's stage 3.

Damn, I have an E station near me. Haha


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[didyouseethat83]

I'm gonna be installing a k04 on my buddies a4 in a couple weeks. Hes from central pa somewhere. Mabe he could arrange something

Lmk! Would be an awesome test


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[spike6339]

Haha here’s a laugh for you today!Image1617405275.862140.jpg


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[spike6339]

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[bb-tt]

Haha here’s a laugh for you today!Image1617405275.862140.jpg


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they have some really killer crack in his world

[Poodini]

We have tossed the idea around a lot. Not sure where we will end up on that matter though.

Jake,

Any movement re stand alone TCU tune?


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[bb-tt]

Jake,

Any movement re stand alone TCU tune?


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HPT always an option

[bb-tt]

couple runs from this weekend

[Traptalk]

they have some really killer crack in his world

He must be smoking the same stuff Bruce Customs motors is 😂

He’s another one who thinks he’s making 450+hp with a k04

He takes the apr k04 dyno numbers and then adds the expected hp gain that’s advertised on every part he adds 😂

[spike6339]

He must be smoking the same stuff Bruce Customs motors is

He’s another one who thinks he’s making 450+hp with a k04

He takes the apr k04 dyno numbers and then adds the expected hp gain that’s advertised on every part he adds

That’s so funny, cause I keep coming across this guy’s videos whenever I look something up. I’m always like hmmm ok bud.


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