Jump to content
SAU Community

Recommended Posts

Ok if anyones had this prob with their r33 i need some advice, cars giving me the shits big time. It an R31 i just finished fitting a series2 rb25, its got a fmic and blitz BOV, standard everything else running 6psi. The prob is this, when i give it alot of shit, particularly after doing a big 2nd gear snaky in the wet, then back off, it blows a CRAPLOAD of smoke out the exhaust, but ONLY when i back off, not on acceleration. it cant figure out whether its fuel smoke or oil smoke.

Also, after only about 1000k's of driving i removed my cooler to find it chockas full of oil. Ive got a spare turbo thinking that was it but they both do exactly the same thing, and both turbs seem fine. I was thinking along the lines of overfuelling due to a non plumb-back bov but seriously the road behind me is lost in the smoke its ridiculous.

Also very strong smoke smell coming into the cab all the time while driving, but no leaks anywhere that i can see. Have i got two stuffed turbs?

Cheers steve

P.S. oil breather is blocked so its not that

Link to comment
https://www.sau.com.au/forums/topic/47688-smoke-and-oil-help/
Share on other sites

not too sure myself, but i can offer that burning oil will look blue and running too rich will be black...

is your bumper full of 'soot' after a drive? if so probably running too rich.

have soemone drive behind you when this happens and get them to do an assessment of the colour and amount of smoke coming out

most cars blow a puff of black smoke on a full throttle change due to the rich nature of the fuel maps...

i can make some suggestions but they are by no means from anything other than my own personal experience and i ain't no mechanic:

- try changing your plugs (gap them to 0.8mm)

- try changing your O2 sensor (same asthe one from the EL falcon apparently)

oh and it could just be your BOV, try putting the stocker back on and see how it goes

good luck!

Waz.

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


  • Similar Content

  • Latest Posts

    • Wife wanted basket things in the wardrobe in our temporary house. Thought about ripping our the wardrobe and fitting the entire IKEA set, but it's a temporary house and we want to move in a few years. So IKEA advertises this as a 50cm unit, however the actually basket and rails measure 46cm wide. Only issue was depth, IKEA stuff is quite deep, where as the builder special junk is super shallow at less than 40cm. Send it, chopped the rails, then offset the mounting holes, job done, happy wife, less shit scattered all over the bedroom. Did the same to the other side too. Also drove the Skyline shit box today, dropped off oil at Supercheap Auto. I didn't realise they only now take max 2x bottles per visit. I visited 2x Supercheap Autos.  
    • I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
×
×
  • Create New...