Hybrid K04 Turbo Discussion

[YerMother]

How do you mean its surging? Is that just with the boost spike or across the entire rev range?

As for my boost machine I have disconnected it for the time being it's alot more driveable!

 

[Feel]

How do you mean its surging? Is that just with the boost spike or across the entire rev range?

As for my boost machine I have disconnected it for the time being it's alot more driveable!

Eh? So what's happened there then - I mean what's happened to sort out the boost spike? I know you've sorted a few boost leaks etc, or is it the manni?

 

[YerMother]

I turned it down when the turbo hose kept blowly off and i noticed that part throttle driving was very on off, very little control. It much better now! The spike has been worse since installing the mani with the controller, another reason for going without.

I'm still running the same boost as what i had the BM set up to run! I now have v-tune running at 108% boost so i'm still getting just over 1.2BAR @ the redline!

Need more logging now!

 

[Feel]

I turned it down when the turbo hose kept blowly off and i noticed that part throttle driving was very on off, very little control. It much better now! The spike has been worse since installing the mani with the controller, another reason for going without.

I'm still running the same boost as what i had the BM set up to run! I now have v-tune running at 108% boost so i'm still getting just over 1.2BAR @ the redline!

Need more logging now!

I've noticed yours doesn't normally spend much time at part throttle. No wonder you didn't notice before...

So the BM reduced the spiking before the manni, but you got part throttle surging AND it made the spike worse when the manni was fitted. So, the BM is now off (no longer plumbed in/back on standard N75) and the spiking's gone even though you're running at 108%?

I wonder if this is manifold or becaseu you tweaked the actuator rod?

 

[YerMother]

The spiking was worse when the new mani was fitted but the ecu has adapted a bit so it's not too bad now. But with the BM it causes bad part throttle boost control. As the BM effectively slows the response time to the N75 the wastegate stays open for the same amount of time so when the boost overshoots the ECU can't bring it back down due to the time delay by the BM. As a result of this the boost stays at the spike value then tappers off as usual!

 

[Skorchio]

I thought LCR's came with a 4Bar FPR ??

 

[Feel]

No. Common myth though.

 

[Skorchio]

No. Common myth though.

OIC. Is it common myth that there is only one Revo stage for the LCR??

 

[Feel]

Eh? No. Everyone else knows theres stage 2 (and stage 3) Revo. Have a look at their site.

 

[Skorchio]

Yeh well there seems to be only stage 2 and 3 for the LCR. Common myth then

 

[Feel]

Eh (again)? Revo do stage 2 and 3 for a lot of cars

Not sure where you've heard that, or why it's relevant to a discussion on K04 hybrid turbos, but it's the first time I've heard anyone suggest it so it can't be a common myth, or even a myth.

You're just plain wrong.

 

[wild willy]

Well this weekend i finally fitted the hybrid. Fitting was a pain in the arse but worth the effort. Well pleased with the results so far. Logs to follow this weekend. Pulling very strong. No real problems with spiking so far.

 

[YerMother]

About time matey!

 

[YerMother]

You just running standard settings at the mo?

 

[wild willy]

You just running standard settings at the mo?

Firstly i ran it in stock apr settings which was an improvement to the original set up. Now i'm running on Octane 98 standard stage 2 software apr map which feels alot stronger than the old turbo setup. I'm looking forward to loging, Vtune tweaking and actuator fiddling.

 

[Feel]

Did you check the actuator before/when you fitted it? If not, since it's running well, I'd make sure it's all tight/locked up right now, and make a note of the measurement...

You sound chuffed with it, I bet you're happy you got it now

 

[wild willy]

Did you check the actuator before/when you fitted it? If not, since it's running well, I'd make sure it's all tight/locked up right now, and make a note of the measurement...

You sound chuffed with it, I bet you're happy you got it now

Yes mate, very happy. The problem i have now is getting all the power down.
I may splash out on a decent suspension setup.

 

[J@mes]

Coilovers, dog bone mount and GOOD tyres make getting the power down much much better!

I was very surprised at just how much coilovers make getting the power down easier!

All three above mods make the car much more drivable imo!

 

[YerMother]

I have just bought some Yokahma Prada Spec 2s for the fronts! Feck me they grip in the dry especially when it was warm the other week! W@nk in the wet though!

 

[YerMother]

Just for a guide, I'm now running at 108% on V-tune Now holds 1.5bar to nearly 5.5k now. Still just over 1.2 bar @ the redline. Need to do more logs though as i have no idea of what is being requested!