I can get my type-s to blow off in neutral with my small 15g on the greddy kit. It's no where near as loud as when I drive though.

 

My t3/to4e and hks ss blow off a little if i rev to like 4k, Im not building boost but the BOV opens when the throttle plate closes so I get a little psst of air.

Nothing crazy like 15 psi

 

indeed, with a small *** 15g hairdryer, it will do it all day...lol. But i have seen it happen several times on a honda. I think all of them are 1.8 l and above though.

Brett

 

I have an t3/to4e 60trim .60a/r with a stg3 .63a/r turbine on my h22a4 and i can blow-off in neutral.

 

This is one of those mysterious quirks in life. Some setups do, some don't.

 

I believe it got a lot to do with compression as well. I don't know about now, because I don't dare to reve my engine past 4000rpms while its breaking in, but when I had stock pistons (cr 11:1) I was able build boost in neutral with a t3/t4 .63 a/r. And the turbine was always spinning, even at idle. I haven't checked to see if the turbine spins now with 9:1 cr though.

I also have thermal wrap on my header which I heard helps a bit too...

 

So I guess it will be hard to blow off to a chick crossin the street huh lol j/p

 

maybe its as simple as the adjustment for the BOV, I know with my Type S u can adjust the nut soft/hard; i can blow off in Neutral, but its very faint (18G).

 

I've got a 60trim T3 on my B18b1 and I can blow off in neutral if I rev up past 5000rpm or so

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by intekragsr &raquo;</TD></TR><TR><TD CLASS="quote">then most likely he dont have a t3/t4. He probobly lied to you. Ask anyone on the board and they will tell you that turbo will not spool in neutral. </TD></TR></TABLE>
The car in my sig blows off with no load but after like 6500rpm and like 1/3 as loud as if driving it.

 

we put the turbo xr rfl BOV on my buddy's volvo c70 and he can blow off big time in neutral. its also a 5 cylinder though, and a 16g turbo

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flamenco-T &raquo;</TD></TR><TR><TD CLASS="quote">it's not gonna happen, your turbo is prolly too big and smaller displacement, not enough to drive the turbine...

sell your honda and get a DSM's if you wanna show it off

stan</TD></TR></TABLE>

Yup.

 

I can blow off with my t25 b18a. It reaches about 6psi in nuetral.

 

mine does it after 7krpm in neutral

 

my 14b turbo on my sohc blows off in nutrual.... pretty damn loud too

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Andrew 825SM &raquo;</TD></TR><TR><TD CLASS="quote">I have a 18G and my car can blow off when you rev it to 6 grand. My bov blows off when the vacuum is close to 0 psi. </TD></TR></TABLE>

me too, i dont boost, it just blows off

 

You may also want to try the HKS racing BOV...it works a bit differently than the other BOV's in that it is always open when the throttle plate is closed. So even at idle the BOV is open. Makes for a better exit for excess boost pressure when not needed and absolutely no surge. So my car always blows off even at low revs.