Jump to content
SAU Community

Hks Ssqv And Greddy Type S Surging

AAARGH 33

By AAARGH 33,
in Engines & Forced Induction

 Share

Recommended Posts

AAARGH 33 Community Regular

AAARGH 33

Posted
Posted

I have tried searching everywhere for answers on both BOVs but can't come up with anything.

So the situation is I have both the bovs. The problem is both these bovs are giving me compressor surge at light throttle.

Surge would mean spring is too stif,so the SSQV is as loose as it can get but still doing it.

On the type s,the valve is open at idle because the vacuum was pulling it open,I adjusted the screw on top so that it stays shut at idle,yes it stays shut at idle but it's too stiff to vent at even medium throttle.

The car is running stock boost (rb25) so I'm thinking boost might need to be raised to overcome spring pressure?

Even at light throttle (low boost-5 psi?) with it surging it wouldn't be enough to hurt the turbo?

Any help would be great.

Link to comment
https://www.sau.com.au/forums/topic/416941-hks-ssqv-and-greddy-type-s-surging/
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

OK. I'll bite. How the hell could it be surging at light load? There is no boost, and even if there is a little bosot you would be so far away from the turbo's surge line that there can be no surge.

If it's 100% recirculated then wind the spring off so that it is sucked open at idle and light load, like it should be.

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted (edited)

You should just run the stock BOV, those fully sick atmospheric BOVs are trouble. Trouble with cops, trouble with fuel economy, trouble with randoming stalling, trouble with wallet, etc.

Why won't you use the stock one?

Edited by johnnilicte
Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

That idle stabiliser thng would help, but you're just installing a band aid on the self inflicted wound.

Also that fluttering won't damage any turbos, it is a myth. I've gone from stock to high flows to aftermarket turbos and never run any form of BOV and have never seen a turbo let go on me. Currently on my latest fridge, I'm not running a BOV either at 0.8bar on the stock ceramic snail. Still going strong, will trash it at Eastern Creek next weekend too.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • TurboTapin
      boost source Size Garrett gt28 gen2

      By TurboTapin · Posted

      You just need to remove the compressor housing, not the entire turbo. I would not be drilling and tapping anything with the housing still on anyways. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      So, I put my boat on a boat. First of all, I'm going to come out and say it. Why is Tasmania not considered a holy goal, an apex that all road-legal modified cars go to, to experience? This place is an absolute wonderland of titanic proportions. If people are already getting club runs for once in a lifetime 30 person cruises to Tassy then I've never seemed to see it. It is like someone replaced the entire place with an idyllic wonderland for cars, and all of the people living there with paid actors who are kind, humble, and friendly. Dear god. After doing a lap of almost all of the place I've found that it's a great way to find out all of the little things that the car isn't doing quite right and a great way to figure it all out. All in all, I drove for 4 hours a day for a week and nothing broke. I didn't even need to open the engine bay. This is by all means a great success, but it has left me with a list of things to potentially address. I also now have a 3D printed wheel fitment tool which annoyingly hasn't got any threads in it to actually assemble it. I might be able to tape it together to check the sizing I actually want to use, but it'll likely involving pulling the shocks out to properly measure travel at least at the front, and probably raise the car while I'm at it, at least in the rear. I scraped on quite a few things and I'm not sure how else to go about it. I was taking anything with a bump at what felt like 89 degree angles. And address those 10 other tasks. And wash the car. God damn it is dirty. And somehow, the weather was perfect the entire time - And because I was on the top of Mt Wellington it turns out it was very much about to freeze up there. I did something I typically never do and took some photos up there in what must have been -10 and the foggy felt like suspended ice, rather than mere fog. If you own a car in Australia, you owe it to yourself to do it.
    • QB6SAGR
      Battle of the broken skylines

      By QB6SAGR · Posted

      Damn that was hilarious, and a bit embarrassing for skylines in general 😂 vintage car life ey. That R33 really stomped. Pretty entertaining stuff
    • cosline
      R32 gtr transmission strength, billet plate

      By cosline · Posted

      Hi, I have a r32 gtr transmission. Does any of you guys have an idea how much power it will hold with the billet center plate and stock gearset? At what power level and use did yours brake with or without billet plate? Thanks, Oystein Lovik
    • Rezz
      Spotted on the street....

      By Rezz · Posted

      Saw this replica police car based on a Mitsubishi Starion XX parked next to a 'police box' (it's literally a box) in Hirohata, Himeji City in Hyogo prefecture the other day. It's owned by Morii-san who is a local Mitsubishi Starion enthusiast. According to a local radio station blog post, he always wanted to make a police car himself based on ones he saw in his favourite Manga comics.  As it's illegal to modify a car to look like a police car and drive on the road, Morii-san tried many times to get permission from Aboshi police station headquarters nearby. They refused initially by after they got tired of that they granted him permission. However, the car can only be displayed on private property and obviously can't be registered as long as the police livery is present. The car was completed at a cost of 1.5 million yen (US$ 10,000) in addition to the car cost. A location was chosen outside Hirohata Police box where the car can easily been seen from the street. Morii-san has two other Starion road cars, both widebody GSR-VRs.
×
×
  • Create New...