Bov Question

[Fujiwara]

Hey guys.

Thinking of getting BOV just so i can hear the stupid atmo noise.

Few questions.

WHat are the main differences between the Blitz DD, Greddy Type R and the Greddy Type RS?

As far as i can tell they're all atmo, DD can hold upto 1.2bar, type r = 100-400hp and type rs = 280-450hp

WHAT THE HELL HP is my skyling and are these figures from the flywheel or the wheels?

And what do these soundlike?

Can't find any sound clips...

Which one do you guys recommend?

And why are these so darn expensive?

Thankls

[mad082]

well you will be under 300hp, so either will be fine as far as holding boost and being able to release enough air.

[Rob_C110GTR]

what skyline do you have? stock or modified?

search those bov in youtube and theres a few there you can watch

you might have stalling issues when you swap your stock to atmo bov

[Fujiwara]

what skyline do you have? stock or modified?

search those bov in youtube and theres a few there you can watch

you might have stalling issues when you swap your stock to atmo bov

it's lightly modded.

Why would it stall if i have an atmo bov?

[PM-R33]

The stalling problem occurs on standard ECU's with the blow off valve venting to atmosphere instead of plumbing back in, ECU gets confused by and RPM drops stalling the car. I personally didn't have any problems like these but a lot of ppl do so just try your luck. Do a search on stalling for atmo bov and learn a bit more about it if you get to worried.

[Fujiwara]

The stalling problem occurs on standard ECU's with the blow off valve venting to atmosphere instead of plumbing back in, ECU gets confused by and RPM drops stalling the car. I personally didn't have any problems like these but a lot of ppl do so just try your luck. Do a search on stalling for atmo bov and learn a bit more about it if you get to worried.

meh...

might just wait till i get the PFC and then tune it so it doesn't stall...

[HypeR33]

I had the Blitz DD on a stock S15 and it did initially have stalling problems. Just wind in the spring tensioner and the stalling worries disappear

[Adriano]

A PFC wont necessarily fix the problem, as its more to do with the AFM than the ECU. If you have to wind the spring pressure up, then it defeats the point of having an atmo BOV, why not just block it off and stick a pod on it and enjoy the backspin noise, as that what most people are after, although you will still have the stalling issues

[HypeR33]

A PFC wont necessarily fix the problem, as its more to do with the AFM than the ECU. If you have to wind the spring pressure up, then it defeats the point of having an atmo BOV, why not just block it off and stick a pod on it and enjoy the backspin noise, as that what most people are after, although you will still have the stalling issues

winding the spring pressure still allows the bov to do it's job. When bought the spring tension is very low and will stall. Increasing the spring tension still gives you the sound that he wants without compressor surge which is what you want to avoid

[gt-t_r34]

i reckon the greddy rs is the best.. most expensive though! just make sure its tight enough so it doesnt leak at idle should be 'ok' but PFC will sort it out for sure.... but steal wheeled turbo and no bov = inviceable pidgin chopper... haha just get the rs me boy

[Fujiwara]

anyone have any first hand experience with any of these BOV's?

do we all agree that the Greddy seems to be the better buy?

[PM-R33]

My friend had a Blitz DD on his car, then bought a Greddy type S to put on. Took me for a drive in it, and it sounded identical. After about a month of use it started to make a little whistle half way through the blow off that sounded allright. So my point is they pretty much sound the same

[HypeR33]

I have had the Blitz DD and also the Greddy S. Both very similar sound, although the Blitz with the sound attachment instead of the filter alters the sound a bit. I found the Blitz was louder by a long way too

[Fujiwara]

I heard that afgter having the Greddy RS BOV on the car, it is impossible to go back to a stock BOV as you need to weld the adapter to the inlet pipe.

Are there same issues with the Blitz?