Jump to content
SAU Community

Recommended Posts

Blow of valves consume more fuel?

I believe it does after I upgraded to an aftermarket blitz blow of valve, replacing the stock bov.

Your opinions?

And another question;

What is the difference between 95/98 octane fuel? Would running on lower octane, damage the engine?

Link to comment
https://www.sau.com.au/forums/topic/164575-blow-of-valves-drink-more-fuel/
Share on other sites

Your car will use more fuel generally because it will be overfuelling.

You can either get an ECU, and have it tuned.

Or put the stock one back in there, nothing wrong with it.

You should run 98octane fuel in an import

It overfuels because the airflow meter reads a certain amount of air passing through it, a portion of which is then not actually entering the engine because the blow off valve allows it to exit the inlet tract.

As such, it thinks (and injects fuel as if) X amount of air has entered the engine, when in fact the engine only really has X - amount released by BOV.

Just a thought.

I've seen cars modded so the afm is moved to just in front of the throttle body, ie after the turbo.

I guess this would solve the problem of metered air being lost through the bov.

Has anyone here tried it on a skyline?

Seems like too much effort for some "chick pulling *NOT*" sound :)

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

    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
×
×
  • Create New...