View Full Version : Blow off signal/pressure
MAXLLY
04-05-2010, 10:46 PM
ok... be kind here i am not a turbo guy!!
We picked up a couple gates and a BOV a few months back. I am finally gettin around to hooking up the BOV up... Does it matter where i get drive signal from to balance? exhaust mani is ok? Or is this a pedistal only signal?
Anybody tried dual staged or sequential BOV's yet?
Mike - i hang my head in shame for missing your call... hope the trip was fun and safe.
Your good James, just figured you were tired of calls from this Texan. Trip was very good and had a blast. Maybe next time.
Depends on your turbo. You should be good hooking the BOV to your exhaust manifold, you'd never notice a pressure difference between it and the pedistal. If you are asking do to heat, the pedistal takes a bit longer to heat up than the manifolds.
Get that thing finished before you have to take it all apart again. I've heard the California smog patrol is getting stingy lately.
NWTDIESEL
04-06-2010, 12:03 AM
BOV or Wastegate?
BOV needs to be run off the throttle since diesels dont have vaccum.
Ive seen dual wastegates before, one 38mm on each up-pipe but that only has the room if your running twins. A single 50mm off the pedistal is plenty and seems to be what works the best.
Newly, he's running wastegates and BOV. The BOV is control surge.
Hey James, post a link to that BOV you had built would you.
MAXLLY
04-06-2010, 09:08 PM
Mike, thank you for the forgiveness Sir. Tell Robin and the kids we say hey!
http://engineereddiesel.com/
Ask for Chris, he's a busy one man show... you don't get it fast... I don't speak highly of many Men but he's a good one.
Yea, I gots both. I need to be sure about the BOV. Can i pull drive pressure signal from the exhaust mani? Maybe "T" it off the drive pressure guage tap? Or do i need to go the Pedistal for the signal?
As for the Wastgates... I wanna try and run em sequentially? example - at say 20 lbs of drive the first one cracks open or opens, when the drive hits say 35 lbs the second opens? My thinking is the charger won't fall on its face due to loss of exhaust charge? I will run both up pipes into an old style "X" (actually it'd look like an upside down Y) connection and "tap" a log at that junction. Just thinking about it...
Mike, this charger is way better than the other, sarcastic tune lit it from a roll at 6lbs, good gray smoke.
Later.
MAXLLY
04-06-2010, 09:16 PM
BOV or Wastegate?
BOV needs to be run off the throttle since diesels dont have vaccum.
Ive seen dual wastegates before, one 38mm on each up-pipe but that only has the room if your running twins. A single 50mm off the pedistal is plenty and seems to be what works the best.
Thanks Newly - We looked at the electronic BOV controls and decided against it. Decent enough design just to many electronics. The fewest moving parts seems to work best for me, and breaks less. :)
Decided to go with a spring and DP reference to activate the BOV, gates work off similiar principle. My charger is spun sideways, my exhaust exits towards the passenger fender. I have a ton of room between the charger and the firewall. When i get to twins piping will be straight cake.
Mike, thank you for the forgiveness Sir. Tell Robin and the kids we say hey!
http://engineereddiesel.com/
Ask for Chris, he's a busy one man show... you don't get it fast... I don't speak highly of many Men but he's a good one.
Yea, I gots both. I need to be sure about the BOV. Can i pull drive pressure signal from the exhaust mani? Maybe "T" it off the drive pressure guage tap? Or do i need to go the Pedistal for the signal?
As for the Wastgates... I wanna try and run em sequentially? example - at say 20 lbs of drive the first one cracks open or opens, when the drive hits say 35 lbs the second opens? My thinking is the charger won't fall on its face due to loss of exhaust charge? I will run both up pipes into an old style "X" (actually it'd look like an upside down Y) connection and "tap" a log at that junction. Just thinking about it...
Mike, this charger is way better than the other, sarcastic tune lit it from a roll at 6lbs, good gray smoke.
Later.
Cool James, thanks for the link. So you have it going again, that's really cool.
NWTDIESEL
04-07-2010, 01:30 PM
Thats a nice set up. What holds the squashed piece into the pedastal spacer and what keeps it from leaking exhaust out?
neversatisfied
04-07-2010, 03:05 PM
Weld it
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