VNT 17/22 R520 install - Analyze my logs!

RallySport

Well-known member
Joined
Apr 5, 2017
Location
Washington Twp, MI
TDI
2002 Golf TDI ALH
Hello!

Over the weekend I installed a Garrett VNT17/22 that was purchased from a private seller in New York along with a set of Race 520 Nozzles/Injectors.

On top of the new turbo and Injectors I installed an aftermarket SMIC, and 3 bar map to accommodate the Malone Stage 5 tune.
It runs GOOD but I think something needs a tweak for >3k RPM
Info about car

260k miles
VNT17/22
3Bar Map
Aftermarket SMIC stock plumbing to turbo
Southbend St2 Endurance Clutch and SMF stock weight
EGR Deleted
2.5 Buzzken turboback exhaust

I took logs of groups 1, 3, 4, 8 , and 11 per malone tuning website.

Note; after my first group 11 log, I lengthened the VNT actuator. Seemed I was OVERBOOSTING? See before and after. The other logs I dont know about.

The engine has lots of torque on the low end. But when im WOT over 3k engine boost felt like it was kicking on and then off and then back on which has me posting here. Looking for your knowledge TDIClub community.

Ive already sent my log files to Malone, so hopefully I will be hearing from them soon.


001 • 003 • 004 • 008 • 011 ah, im missing group 10 which I believe is atmoshperic pressure!? Will get today and post up
GROUP 1 Data: https://log.tunezilla.com/s/ZFgdsrmc
GROUP 3 Data: https://log.tunezilla.com/s/5yQOsCWk
GROUP 4 Data: https://log.tunezilla.com/s/S9tca723
GROUP 8 Data: https://log.tunezilla.com/s/SRUbo8Jd
GROUP 11 Before VNT arm adjustment: https://log.tunezilla.com/s/2fI9Z0qx
Group 11 after lengthening VNT arm: https://log.tunezilla.com/s/nr79oa9p
 
Last edited:

CNGVW

Vendor , w/Business number
Joined
Sep 15, 2009
Location
Bob Mann Auto, 111 High St, Pembroke MA 02359
TDI
Many TDI Jettas and a Beetle Race car run 2010 jetta tdi cup car build roadrace
You are logging wrong you need to be in 3 th gear and roll into it till you hit 4500 RPM
From the the group 11 I do see it is asking for 2761 in boost and it can meet it but slow to spool up and the n 75 is still in its range Malone should help you out. this is a very simple build you have my ever day kind of drive.
 
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