Stealth TDI
Pre-Forum Veteran Member
Hi,
I'm confused. I've been posting lately about how I found the "bleed" to be sort of useless. I get the same 20-22 psi with or with out the bleed. I remember having the exact boost levels that Rene said I'd get, 20-psi peak and 17-sustained. Later, I bled for 20-psi continuous. Recently, I removed the bleed because I decided it wasn't worth the hassle of fiddling with the adjustment... plus I kept spouting leaks.
I quoted that my boost levels remained unchanged after removing the bleed... 22-peak and 20-sustained. But now I'm at a significantly lower altitude (near Austin) and I'm measuring the "original" Upsolute pressures of 20-peak and 17-sustained.
So now I'm confused. I thought the turbo had to struggle to make the same pressure at altitude due to thinner air. To me, thinner air equals lower available pressure. But my car's not doing that.
Can someone explain why, without ANY adjustments, my turbo produces 3-psi more boost at 4300-ft than it does at 1000-ft?
Thanks,
I'm confused. I've been posting lately about how I found the "bleed" to be sort of useless. I get the same 20-22 psi with or with out the bleed. I remember having the exact boost levels that Rene said I'd get, 20-psi peak and 17-sustained. Later, I bled for 20-psi continuous. Recently, I removed the bleed because I decided it wasn't worth the hassle of fiddling with the adjustment... plus I kept spouting leaks.
I quoted that my boost levels remained unchanged after removing the bleed... 22-peak and 20-sustained. But now I'm at a significantly lower altitude (near Austin) and I'm measuring the "original" Upsolute pressures of 20-peak and 17-sustained.
So now I'm confused. I thought the turbo had to struggle to make the same pressure at altitude due to thinner air. To me, thinner air equals lower available pressure. But my car's not doing that.
Can someone explain why, without ANY adjustments, my turbo produces 3-psi more boost at 4300-ft than it does at 1000-ft?
Thanks,