Jenner kept the same panties. Doesn't make it right!

I kid, I kid.

It says to run a realistic LDRXN. What are some methods of determining that from scratch on a new setup? Set it a little high, watch where the actual boost comes alive and graph it off of that?

On 2.7t the k03s spool quick down low at roughly 2000 rpms. With a larger turbo the powerband is shifted and youre not even in much boost till 3500 rpm or so. Is there room to add timing in the 1800-3000 range when your 2.7t is running like a 2.8 N/A? anything else to take advantage of before boost can build?

Hello,

How do you do to get the throttlebody to open fully at rpms below spool treashold when running big turbos on small engines? Currently it's not really working like it should on my tune.

Attached a picture of the behaviour. In those loads the IOP and IRL is stock. I tweaked KFMSNWDK so that it is 60 % lower on these loads and rpms and also of course KFWDKMSN is 60 % larger in the same areas. Maybe helped a bit, but not much.

I think the reason is ME7 thinks I will have boost in those rpms but i do not have that. Maybe LDRPLS should be tuned, but I dont think I even have that map in ME7.5 1.8t software? I there something similar?

Also, I have tuned axis of maps KFVPDKSD and KFVPDKSE with: original value * (my base boost / original base boost. Could this make things worse?

Any ideas?

Would increasing WDKUGDN help?

/Kenneth

The map you are searching is KFURL.

It correction factor of volumetric efficiency

Example (Values are fictitious):

Your old Charger does 100g/s @ 0,6bar
Your new one has better VE and makes 110g/s @ 0,6bar

So you need to change KFURL about 10%.

desired boost in manifold is KFMIRL*additional factors/KFURL.

Lets talk about this, maybe I got this wrong, but I got some good gesults with this.

KFURL-> psrlro_w*ftbr_w -> fupsrl_W

rlsol_w/fupsrl_w -> pssol_w

KFURL is dependent on NWS. NWS would influence VE, too. But even on Cars without NWS KFURL is used...


So from my understanding this correction for pressure/filling and inverse..

Thank you, I´ve done few cars this way and this gave me really good results.

ftbr_w is mostly about 1,1-1,3. So if I want to calculate KFMIRL very approximately to boost I go KFMIRL*1,2/KFURL
(Very very approximately of course, its possible to make a full formula with the fr, but this need few more factors)

(edited middle part because it could have been misleading)

Did the intake change when doing the install? If so, from what to what?

What are you using for the calculated hp? Or do you have actual runs on the dyno?

Do you have any way of measuring pressure at the outlet of the turbo and compare that to the intake manifold pressure?

Did you find a log yet?

And that thing is a beast

I think you need an eye check buddy "This page was last edited on 8 June 2022, at 12:37."


It doesnt matter what people say, this ECU is almost bloody open source. Take what the members say think about it, and if you dont "trust" them , then go open the funktion pdf and have a look for yourself its all laid for you.

But if you have no fuckin clue about a certain topic or something and someone spoon feeds information then the only thing you can do is use it and trust them. If not its not correct or something there will still be a discussion about it from other members.

Another thing, the information that has been posted here over the years is still valid to these days, almost every combination and route has been exhausted and talked about, and if there is something that wasn't then go on, make it a better place by doing it yourself, same with the wiki - you know almost anyone can edit it right? Not happy? Go do it yourself, but nah, its easier to talk shit and complain isnt it.

If you are not happy with the content or quality of it  in the recent years why dont you be a pillar member and take up the 'mantle' that was carried by others in the past years? Again refer to above ^.

Get a grip