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Tech Area => General Buick Tech => Topic started by: Tcorgn6 on September 24 2018, 02:06:48 PM

Title: Blow off valve
Post by: Tcorgn6 on September 24 2018, 02:06:48 PM: Hey guys,
More and more as I get into the adding performance mods on my car I was wondering if a blow off valve would add extra protection. Thoughts.... :D
Title: Re: Blow off valve
Post by: Forzfed on September 24 2018, 02:40:04 PM: Only if it is a 270' bearing. But rumor has it that it is good for an extra 50rwhp! :P
Title: Re: Blow off valve
Post by: TexasT on September 24 2018, 03:23:11 PM: Never saw a real quick regal with a bov. Not sure what it protects, or why you think you need one. Never saw one listed in any "recipe" for going fast either.

Verdict, not needed.
Title: Re: Blow off valve
Post by: Steve Wood on September 24 2018, 03:31:55 PM: I don't think they are needed on a street car with any normal sized turbo...I'm sure you will find a vendor that says it is a must have and will sell you one, tho
Title: Re: Blow off valve
Post by: Scoobum on September 24 2018, 08:23:54 PM: Quote from: Tcorgn6 on September 24 2018, 02:06:48 PM
Hey guys,
More and more as I get into the adding performance mods on my car I was wondering if a blow off valve would add extra protection. Thoughts.... :D

Blow off valves are gay. 42 seconds is what a real mans GN sounds like letting off the loud pedal.

https://www.youtube.com/watch?v=QFjkrBgHMCc (https://www.youtube.com/watch?v=QFjkrBgHMCc)
Title: Re: Blow off valve
Post by: Tcorgn6 on September 24 2018, 08:29:10 PM: LOL 😂Damn Brad your hilarious!!!!! Heck I’ve been watching some of the guys install these things and I wasn’t clear in “ WHY “ but I am now :)
Title: Re: Blow off valve
Post by: phil_long on September 26 2018, 09:19:52 AM: I love that run. I'll get there one day!!
Title: Re: Blow off valve
Post by: earlbrown on September 26 2018, 10:50:42 AM: Quote from: Tcorgn6 on September 24 2018, 08:29:10 PM
I’ve been watching some of the guys install these things and I wasn’t clear in “ WHY “ but I am now :)

They're so the turbo can stay spooled when you push in the clutch and shut off the throttle for 1/2 a second.

you know.... like we NEVER do on a GN.
Title: Re: Blow off valve
Post by: larrym on September 26 2018, 10:53:38 AM: nice Vid Brad nice looking monty always liked that front clip your car leaves nice!
Title: Re: Blow off valve
Post by: Tcorgn6 on September 26 2018, 11:03:44 AM: Sounds like a beautiful car as well !
Title: Re: Blow off valve
Post by: Scoobum on September 26 2018, 07:30:54 PM: Quote from: larrym on September 26 2018, 10:53:38 AM
nice Vid Brad nice looking monty always liked that front clip your car leaves nice!

Take a close look...and you'll see I had the rear QA1's set about one notch to soft.
Title: Re: Blow off valve
Post by: larrym on September 26 2018, 07:54:50 PM: hard to see much on the launch the white car is in the way front seems to come up nice. were you spinning in second saw a little smoke again the white car gets in the way lol
Title: Re: Blow off valve
Post by: Scoobum on September 26 2018, 08:06:03 PM: Quote from: larrym on September 26 2018, 07:54:50 PM
hard to see much on the launch the white car is in the way front seems to come up nice. were you spinning in second saw a little smoke again the white car gets in the way lol

Wrong vid...my bad. After 500 and some odd passes...the rings were gone. When I had Joe build that engine the piston to wall clearance was max. The white smoke...is from the crankcase pressurizing and pushing the dipstick up and oil dripping on the DS header. It got so bad I was emptying the reusable breathers every couple of runs.
Title: Blow off valve
Post by: larrym on September 26 2018, 08:20:44 PM: I just installed a catch can and a turbo blanket in hopes of getting underhood temps down. Figured I better capture the oil or my blanket might be a fire hazard 🤣

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Title: Re: Blow off valve
Post by: earlbrown on September 27 2018, 12:48:35 AM: Quote from: Scoobum on September 26 2018, 08:06:03 PM
After 500 and some odd passes...the rings were gone. When I had Joe build that engine the piston to wall clearance was max. The white smoke...is from the crankcase pressurizing and pushing the dipstick up and oil dripping on the DS header. It got so bad I was emptying the reusable breathers every couple of runs.

You need me to build you some .031's?