Anyone with a stock vvt have a video of their boost gauge going WOT, on a bigger tune? Or know of any online? Yes, I am seriously asking this question
Boost video
- Thread starter x MadMAX DIESEL
- Start date
Sorry man I will have to do it when i get up my phone died on me at work.
I can say it hits 30-32 psi and holds it till I let off
I have a bigger tune that hits 45psi but it does not make much more power as the turbo is out of it's map.
I can say it hits 30-32 psi and holds it till I let off
I have a bigger tune that hits 45psi but it does not make much more power as the turbo is out of it's map.
Alright that's cool, I may have a leak but doubt it. I'll have to do more tests, but mine seems like it leaks off to 26 or 27 before the shift
I can't hold high boost numbers like some can... yet my truck runs good, especially for this altitude. I have never seen more than 30-31psi, and that's below 3000 rpms... it starts falling off above 3200. I set my shift points at 3500 and by there I'm down around 25-26psi. (did this for stock trans, and actual airflow across the maf stays about the same up to 3500 then drops off, so power is good there)... Not fueling, not vane issues, and I pressure checked my piping... who knows, it makes enough power for a stock trans so whatever...
I'm wondering if people are making those big boost numbers at lower rpm's... maybe it's normal for the stock turbo not to be able to hold that high boost at higher rpms 32-3300?
I'm wondering if people are making those big boost numbers at lower rpm's... maybe it's normal for the stock turbo not to be able to hold that high boost at higher rpms 32-3300?
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Something like this ? Boost on left
http://www.youtube.com/watch?v=QCWEuDQZhA8&feature=youtube_gdata_player
http://www.youtube.com/watch?v=QCWEuDQZhA8&feature=youtube_gdata_player
I peak at 38psi at the top of the shifts until 5th then I can hit 42psi at about 2500rpm. When shifting I go down to about 24-26psi, still foot to the floor. This is on the 120hp tune
My boost was never what I would call optimum when I had my stock charger, It would hit 40 psi. on my race tune and gradually back down to low 30's I never got it figured out and truck seemed to run fine. I solved that problem recently