Wastegate
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New User
Joined: Feb 2003
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Wastegate
? HAS ANYONE EVER CLEANED THIER WASTEGATE, I HEARD MINE STICK OPEN THE OTHER DAY, HASNT DONE IT SINCE. WOULD LIKE TO CLEAN IT THIS SPRING. AND HAS ANYONE MODIFIED THE ACTION OF THE GATE SO IT DOESNT OPEN AS SOON. I DID THIS ON MY VOLVO 850 TURBO. ICREASES BOOST FOR A LONGER PERIOD.
THANKS FOR ANY HELP!
THANKS FOR ANY HELP!
Junior User
Joined: Aug 2002
Posts: 98
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Wastegate
Yah, I built a boost tube for mine. This artificially delayed the opening of my waste gate and increased power all of the way through the powerband. It was cheap and easy. I simply purchased an extremely thin piece of copper tubing in the plumbing department of a local hardware store. Built it into a little bit of non-collapsable tubing and installed in at the wastegate right were the blue plastic line goes in. This worked well before I had a chip. I would not use both. If you have the really old injector seals (pre 2000 model truck) you will probably blow out the injector seals. I know I did. Got the new updated injector seals installed under warranty though so it actually worked out well.
The copper tubing was quite small. I don't remember the exact inside diameter but it was very small. If I were to guestimate I would say the ID was around that of 10 hairs bundled together. I don't believe the exact size is terribly critical. After all, some guys just completely disattach the wastegate vacuum hose so it never opens.
Good Luck.
The copper tubing was quite small. I don't remember the exact inside diameter but it was very small. If I were to guestimate I would say the ID was around that of 10 hairs bundled together. I don't believe the exact size is terribly critical. After all, some guys just completely disattach the wastegate vacuum hose so it never opens.
Good Luck.
Posting Guru
Joined: Feb 2001
Posts: 1,465
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From: Indianapolis
Wastegate
Boost and injection pressure are totally independant of one another. If your seals "blew" they were about to go anyway. That is why they were upgraded -- the earlier ones were not up to lasting the life of the engine. (That is why anything is upgraded.)
Junior User
Joined: Aug 2002
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Wastegate
My truck only picked up 3 psi of boost w/ the boost tube.
I do not have a boost gauge but my mechanic was curious and he told me that he measured it both ways. It was at about 19 psi if i remember correctly.
I do not have a boost gauge but my mechanic was curious and he told me that he measured it both ways. It was at about 19 psi if i remember correctly.
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