Will L.
Well-Known Member
8 is max for a stock db2. Any built up db2 has higher inlet pressure requirements. Into the mid 20’s and into 30’s becomes common. You have to talk with the builder for your application.
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The wifey hauled home a female dog, its a Golden retriever with some German Shepherd in there. The iwfey goes to work so the dog and I hang out at the house most all the day. She lays beside the couch where I set and acts like She is sad because the wifey aint here, the wifey takes Her for the morning run and evening walks and other than that pays no attention to the dog because she sets and screws around in fake book all afternoon and evening and into the night, but, when the wifey goes outside for a smoke that dog is right there with Her. I think the dog has abandonment issues. LOL Only reason the dog tolerates Me is I am mister treats. LOLOLOLView attachment 61517View attachment 61518
Generally the Hx40ii turbine is a Hx35 @ around 12 cm2 while the GM turbos are 9cm2, you can look into the inside of one of the volute (where turbine bolts to manifold) and see the cast turbine size. The larger the turbine the more fuel is needed to light it up "spool" down low. I ran a full sized Hx40w w/18 cm2 and it lit up @ 1.2k rpms. When looking at boost pressure on a gauge that is not actual because you have to add generally 14.7 psi @sea level this number changes "reduces with altitude." So if your gauge is showing 20 psi @ sea level your actual boost is 30.7+- psi.My turbo is a hx40ii, from pt wiring . I bought his kit. I don't know what size housing it is but it's tiny compared to the ATT. I ordered the tci transmission controller yesterday and should have it Thursday. Hopefully the truck will be rolling under its own power this weekend.
Sorry I made a math error; a 20 psi gauge reading will be 34.7 psi actual...Generally the Hx40ii turbine is a Hx35 @ around 12 cm2 while the GM turbos are 9cm2, you can look into the inside of one of the volute (where turbine bolts to manifold) and see the cast turbine size. The larger the turbine the more fuel is needed to light it up "spool" down low. I ran a full sized Hx40w w/18 cm2 and it lit up @ 1.2k rpms. When looking at boost pressure on a gauge that is not actual because you have to add generally 14.7 psi @sea level this number changes "reduces with altitude." So if your gauge is showing 20 psi @ sea level your actual boost is 30.7+- psi.