BOV and boost

[RbHed]

hey guys,

i know this is gonna sound stupid but here goes anyway.....

- i got the old hks sequential bov and it doesnt go off sometimes even though im hitting boost.

- should i be getting more bosst with the following mods :

- fmic

- pod

- exhaust, front pipe + hi flow cat

- bov

doesnt the boost automaticlly goes up with an exhaust by one or two psi. Right now im my boost gauge doesnt read more than 5 psi, no matter how hard i drive. One of my friends told me that the extra boost is lost in the fmic. Could he be right or is something wrong with my engine or turbo. Should i get my car check out.

thanks in advance and happy boosting

[Jay95R33]

Unless you've got a hole in your FMIC you won't be loosing any boost.

Some people report on having more lag with a bigger intercooler, but I never expreianced it with my 700x300x76 cooler.

Are you reading it from the factory boost gauge in the dash or do you have an aftermarket gauge???

Just remember that the in dahs boost gauge doesn't read in psi.

Maybe the HKS BOV needs a slight lube up with a little bit of grease?? Do you still have the hose conected to the top of the BOV???

J

[RbHed]

i have a apex boost boost which reads in x100kpa( same as the in dash...i think ). Even when i drive it hard, the boost wont go past .05 on the apex or in the dash boost gauge. The intercooler is ok.

are you talking about the hose connected to the factory bov, if you are...... no its not there anymore. Will this affect the HKS bov.

how do go about lubing up a bov

do you think theres something wrong with the car

thanks for your reply and advice

[Jay95R33]

Depending on how you've got it plumbed up will depend on how many hoses you'll have.

I'm pretty sure the one that you've got vents out to the air.

The hose that should always be connected is the small hose that is connected to the top of the BOV and goes to the inlet plenum.

This will hold the BOV close when under boost, and also help pull it open when your between gears.

If you can, take a pic of the BOV on your car and we'll have a look at it.

Cheers

J

[Moschops]

Check the pipework between the turbo and the plenum. I had a loose clip and it wouldn't go above half way on the std boost guage. Tightened it up and straight up to .8 bar.

[skyline33]

is you're bov adjustable??

[RbHed]

J,

dont have digi camera but will try to borrow one from a mate

Moschops,

will look around the piping for leaks and stuff

whats the skyline scene like in the uk

skyline33,

yes it is adjustable

thanks for all the reply guys

[skyline33]

try and adjust it, loosen or tighten it a bit and see if that makes a difference

[RbHed]

hey guys,

the BOV is fine.....it just needed a little adjustment( i feel so stoopid )

but still having problems with the boost. Im taking it back to dealership where i got it from and see what they say. i just hope they dont try to tell me its normal or something and not fix it

[rev210]

factory boost solenoid limits the boost to about 7psi.

It is quite possible that this is the problem, it self corrects.

You can try and reset the ecu (Disconnect the battery overnight).

Otherwise the only way to assure a 10psi level of boost is to buy a proper boost controller.

[RbHed]

the car is fine........

it was just my paraniod nature.The reading in the gauges were in bars so .5bars = 7psi( man i feel stupid )

hey rev210,

the mechanic at the dealer told me the same thing( factory boost limited to 7psi ). When you reset the ecu, do you drive it as usual afterwards or drive it hard

thanks for all your concerns and happy boosting

[rev210]

Rbhead,

It doesn't matter how you drive it. The ecu has a set map.

a reset may fix a fault though.

[YBSLO4]

Hey dude,

Problem with the HKS SSQ BOV is they tend not to be very loud on low boost, turn it up however and they absolutely scream. I'm running stock at 6-7psi and its loudish, but when i turn onto 10-11 it starts to really get loud , and anythin above that it is fuI

[RbHed]

rev210

thanks for clearing that up

YBSLO4

its the old ssq. dont suppose u want to swap....hehehehe

happy boosting

[YBSLO4]

Sorry dude, its new lol aint swapin yet.