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Fitted A Ssq Bov Now Im Running Sluggish At Low Revs?

BLACK STEALTH

By BLACK STEALTH,
in General Maintenance

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BLACK STEALTH Contributor

BLACK STEALTH

Posted
Posted

Hey all?

Recently, I fitted an SSQ BOV to my R33 GTS-T & now I'm running really sluggish. I don't have much experience & i'm learning as I go on but can sum1 plz explain 2 me what I have done wrong? I'll explain what I did and you all can give your conclusions...

Ok, so I removed the stock BOV & bolted a thin peice of metal 2 cover the whole. I did't have a bolt on BOV adapter so I cut a whole 2wards the end of the piping at the front end, & welded the BOV on. Ran the vacuum hose as needed & bobs your uncle!

Now, since doing this, I seem 2 have an issue with the car not idling correctly at times. Then other times it seems to be Ok? At low revs the car feels really sluggish, kinda like the clutch is slipping, or there is some kind of stutter or lag. Also noticed it backfiring a lot more now too.

Whilst driving yesterday, nearly everytime I pulled up at a set of lights the car would either stall as I came 2 a stop or it would idle quite low then just pick up again in time 2 idle normal.

Is there sumthing I have done wrong when I fitted the BOV or is it just pure coincidence & I have another issue? I've rattling my brain trying 2 think what it could be???

Could it be losing air sumwhere & that's what's causing me grief? A few friends have said it could be my timing belt or clutch is on the way out? I'm so lost I have no idea where 2 look...???

Any comments or help would be fantastic & very much appreciated!!!

Cheers

:(

chrissso Proficient

chrissso

Posted
Posted

Well, something is wrong.

I suggest that you fit the old bov, and remove the ssqv and block the new opening, see if that fixes the issues. Then do one thing at a time to see where you are going wrong. E.G., remove the old bov and block off, then go for a drive. If this works, then you know that it's the new ssqv or fitting. If not, then you know you have a sealing problem with the thin piece of metal blocking the old bov hole. Etc. etc. Did you block off the rebreathing hole that feeds back to the turbo air feed? did you use some kind of gasket between the thin peice of metal and the old bov hole? etc etc.

BLACK STEALTH Contributor

BLACK STEALTH

Posted
  • Author
Posted

Yeah that makes sense...Just wish there was a quicker way instead of going step by step.

Funny thing with the rebreathing pipe feeding back 2 the turbo is I had 2 McGuiver sumthing up 2 block it off. Couldn't find anything useful & wait for it...don't laugh too much but I ended up blocking it off with a champaigne cork & fastened the pipe. It's got a firm fit & doesn't appear to be leaking air...??? LOL

There was a gasket from the original BOV so I just used the same one again & made the thin piece of metal to suit the gasket size & shape.

So, you don't think it's another issue? Like timing belt or clutch or sumthing expensive like that then...???

:(

Well, something is wrong.

I suggest that you fit the old bov, and remove the ssqv and block the new opening, see if that fixes the issues. Then do one thing at a time to see where you are going wrong. E.G., remove the old bov and block off, then go for a drive. If this works, then you know that it's the new ssqv or fitting. If not, then you know you have a sealing problem with the thin piece of metal blocking the old bov hole. Etc. etc. Did you block off the rebreathing hole that feeds back to the turbo air feed? did you use some kind of gasket between the thin peice of metal and the old bov hole? etc etc.

chrissyo Collaborator

chrissyo

Posted
Posted

why would you consider it being something bigger like a clutch or timing belt without first ruling out the obvious problem of your wanktastic blow off valve?(recently converted to stock and will never go back!) :D

Dont be lazy, firstly go through wat was already explained to diagnose where in the BOV setup your problem lies. IF that doesnt work then maybe look outside the square for another problem.

SLY-25T Mentor

SLY-25T

Posted
Posted

ive got a "look at me look at me" dual trumpet atmo bov and my car does the same. its just wat happens wen u change to an aftermarket bov that releases the air into the atmosphere instead of plumbing back. sorry to say ive found nothing that fixes it so its either buy a new aftermarket one with atmosphere and plumb back and find a median that sounds good for you, or just go back to stock.

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