NefMoto

Hi, I have a 2.7 6sp

k04s
headers
catless exhaust
inlet piping
rkx dv

Im currently running the nvr stg 2 tune with some modifications that i have done to it.

Currently i'm not hitting requested load or boost until about 4500-5000 rpm. Cant seem to find the reason why.
Everything seems to be functioning correctly. N75 has been removed and checked. Dv were replaced. wg cracking pressure is 4-7 psi. Makes great power when it hits its requested. Just don't know what is limiting it at low rpms. (https://ibb.co/b6D8chYhttps://ibb.co/YRk1kzchttps://ibb.co/ys8GZrshttps://ibb.co/JkPy4kXhttps://ibb.co/QrGfhLD)

(https://ibb.co/QrGfhLD)
(https://ibb.co/YRk1kzc)
(https://ibb.co/ys8GZrs)
(https://ibb.co/JkPy4kX)
(https://ibb.co/b6D8chY)

https://ibb.co/b6D8chY
https://ibb.co/YRk1kzc
https://ibb.co/ys8GZrs
https://ibb.co/JkPy4kX
https://ibb.co/QrGfhLD

This is a link to download the bin on my car. https://ufile.io/d1ygu

Please post actual logs, not images.

http://nefariousmotorsports.com/forum/index.php?topic=5295.msg58862#msg58862

Obey forum rules, please.

I apologize. Its been a long time since i've read the rules or posted.

https://ufile.io/xbaf5 here is a link to download my log.

Trims? Either a large boost leak, N75 problem, the wastegate isn't staying closed, or your turbos are dying.

Also, check your DVs again or just revert to stock DVs

If you disconnect the wg line, if you (CAREFULLY) go WOT, can you make more boost?

Alright. I unhooked the wastegate line and drive it and was able to make more boost but still no where near my requested. The diverter valves are adjustable and i have a medium strength spring in them that is just a little stiffer than 710ns. Here is my log. Not much data but i think there is enough. https://ufile.io/6ufed

If you aren't making boost with the wg line disconnected, you have a severe mechanical problem.

I'm thinking that the wastegate needs a little more preload or helper spring.

Or you have a boost leak or leaking DVs

or maybe even a severely clogged cat.

No Boost Leaks. The Car is Freshly Build. No Cats. I have downpipe resonators and muffler and full 2.25 duals. The Diverter valves are brand new. Dont even have 10 miles. Turbos are also brand new with less than 100 miles.

Its not like im not making boost im just not making the boost as soon as i think i should. With the wastegate unhooked i can build over 20 but not until 5k where im beginning to run out of fuel. I havent done any fuel mods yet but i have a wideband and am trying to tune it to run within the capabilities of stock fueling.

K04s should make 25psi long before 5k.

Check your wg's as you said. 4-7psi is way too soft. K04s may only make 20psi at that setting, but they should at least spool.

What pressures should they be cracking at? 

Try closer to 10-13psi

So, I tightened the wastegates as far as they would go and they were opening at 10-12 psi. I'm debating on getting adjustable wastegates. Made a huge difference tightening the wastegates but i feel like the springs are just to weak in these turbos. I have attached a log from after the wastegate adjustment. I would like to know if the results i'm getting are normal or if i could achieve peak boost at a lower rpm. https://ufile.io/31w85

Impossible to tell from that log. You're going to have to increase IMX significantly, or possibly do another (careful) run with the wg line disconnected.