Overboost or no?
Thread Starter
AudiWorld Junior Member
Joined: Aug 2019
Posts: 21
Likes: 2
Overboost or no?
Ok, i have a 04 tt 225 quattro, thought for a while that I had a bad n75, installed a boost gauge, and I'm pretty consistantly hitting 20lbs of boost in 2nd and 3rd gear, and I thought the stock boost pressure was supposed to be 14lbs peak. Could this extra boost pressure come from my aftermarket intake and exhaust? And also, my car feels slower than it should and at 20lbs of boost, isn't that close to some of the stg 1 tunes? I'm basically very confused, lol
Any help?
Any help?
AudiWorld Member
Joined: Sep 2006
Posts: 556
Likes: 106
Ok, i have a 04 tt 225 quattro, thought for a while that I had a bad n75, installed a boost gauge, and I'm pretty consistantly hitting 20lbs of boost in 2nd and 3rd gear, and I thought the stock boost pressure was supposed to be 14lbs peak. Could this extra boost pressure come from my aftermarket intake and exhaust? And also, my car feels slower than it should and at 20lbs of boost, isn't that close to some of the stg 1 tunes? I'm basically very confused, lol
Any help?
Any help?
Boost is just a measure of air pressure, you need proper amount of fuel and advanced timing to max power. So boost by itself does not mean you will make big power. All the other parts of the system must be working optimally.
In this situation you would want to .......
1. Log - fuel, boost and, timing
2. Insure your fuel filter has been properly serviced
3. Insure your air filter has been properly serviced
4. Pull the plugs and at least insure the gap is proper .032"
When you log boost you will find out if you maybe have a mild tune installed.
Logging is done by running the car in 4th gear from 2500 rpm to redline.
Once all of this has been done, you are likely to discover most of the issues or at least have an idea where the issue are.
Thread Starter
AudiWorld Junior Member
Joined: Aug 2019
Posts: 21
Likes: 2
Thanks. I just bought a new fuel filter, and I ran liqui moly jectron thru the gas tank a week ago, im going to put the fuel filter in soon, and this weekend I'm gonna pull the plugs and check the gap, and replace them if needed. I have a pretty freshly cleaned k&n so the air fillter is not the problem. Getting a fresh liqui moly oil change soon as well. Any other things that I should service that could help restore any possible loss in power?
Thread
Thread Starter
Forum
Replies
Last Post
DirtyVegasTT
TT (Mk1) Discussion
1
Feb 2, 2004 04:45 AM
