Hello guys.
long story short. Installed last year a Whipple gen3 stage 1 (stock TB, closed air box, Whipple tune). Since then have this. See video below.
As I have no clue how to fix it. Did next:
1. tried different belts. Different lengths, different adjustable pulley locations. Another words - 95% belt tensioner, 80%70%, etc.
2. Checked all spark plug gaps (for 0.028")
3. Realigned an air duct to make sure there are less chances for "turbulence". lol. (last year whipple said it might be a turbulence). Along with that, tried to drive with and without an air box cover, with/without fog lights. lol. Just in case.
4. Updated tuner and reloaded whipple tune (2 times)
5. installed a boost gauge to see what is going on with a boost. That is how I came out with an idea about bypass valve flapping.
6. Installed a fuel pressure gauge to make sure there is no drop during boost. Btw I am using 93 Costco gas.
7. Removed and reinstalled a head unit to make sure all installed correctly.
8. Did a smoke test. Was looking for any leaks. All looks ok. No leaks.
9. Checked if by-pass valve opens and closes when engine on/off. It does.
When get chance, planning to clean pulleys (with brake cleaner) and rotate (in opposite direction belt).
Regarding a belt dust. Now, belt and pulleys look like this (see attached pics). Is belt dust normal or excessive ? I am pretty sure some is just a road dust. But who knows.
So...... Does anyone have experience with this? How did you fix it? I want to make sure that there is no mechanical issues before jumping into a new Tune (from PBD or another guys).
Thank you)
long story short. Installed last year a Whipple gen3 stage 1 (stock TB, closed air box, Whipple tune). Since then have this. See video below.
As I have no clue how to fix it. Did next:
1. tried different belts. Different lengths, different adjustable pulley locations. Another words - 95% belt tensioner, 80%70%, etc.
2. Checked all spark plug gaps (for 0.028")
3. Realigned an air duct to make sure there are less chances for "turbulence". lol. (last year whipple said it might be a turbulence). Along with that, tried to drive with and without an air box cover, with/without fog lights. lol. Just in case.
4. Updated tuner and reloaded whipple tune (2 times)
5. installed a boost gauge to see what is going on with a boost. That is how I came out with an idea about bypass valve flapping.
6. Installed a fuel pressure gauge to make sure there is no drop during boost. Btw I am using 93 Costco gas.
7. Removed and reinstalled a head unit to make sure all installed correctly.
8. Did a smoke test. Was looking for any leaks. All looks ok. No leaks.
9. Checked if by-pass valve opens and closes when engine on/off. It does.
When get chance, planning to clean pulleys (with brake cleaner) and rotate (in opposite direction belt).
Regarding a belt dust. Now, belt and pulleys look like this (see attached pics). Is belt dust normal or excessive ? I am pretty sure some is just a road dust. But who knows.
So...... Does anyone have experience with this? How did you fix it? I want to make sure that there is no mechanical issues before jumping into a new Tune (from PBD or another guys).
Thank you)