Is this a boost controller?

[WideOpenThrottle]

G'Day.........any body recognize this part? It came off my 323 & it looks like blow-off/boost controller.
Cant seem to find it on the Denso site.

I might whack it on if it is!

Thanks

WOT

[Habanero666]

If the 323 was turboed it probably is a bypass/diverter valve.

If not, it may be an exhaust gas recirculation type valve.

[WideOpenThrottle]

Well just for fun i connected it up to the intake track just before the throttle body plus the smaller tube to vacuum behind the TB.....i vented it to atmosphere & found the larger pipe to have a slight vacuum which also dropped engine revs slightly but returned to normal if i blocked the end.

I am thinking that it may need to be installed in closed loop somehow & by the looks of the internals it might only go one way?

[Habanero666]

Well just for fun i connected it up to the intake track just before the throttle body plus the smaller tube to vacuum behind the TB.....i vented it to atmosphere & found the larger pipe to have a slight vacuum which also dropped engine revs slightly but returned to normal if i blocked the end.

I am thinking that it may need to be installed in closed loop somehow & by the looks of the internals it might only go one way?

Hahaha

This is because the intake manifold is giving a vacuum signal to the valve which opens it at idle, the revs are dropping because you have made an air leak in the system

If the air were recirculated this won't happen as the air stays in the intake sytem after the MAF sensor has calculated it.

[WideOpenThrottle]

Cheers Hab

So could this device be beneficial or a waste of time do you think?

wot

[Habanero666]

Cheers Hab

So could this device be beneficial or a waste of time do you think?

wot

It depends on the intake manifold pressure you are running.
If over 12-13psi I would use something. You will benefit from better throttle response and boost rise after gear shift , some say that it will make the turbo last longer but I think they are too imaginitive!

(before anyone jumps up to defend the imaginitive ones, BOVs do not have anything to do with preventing "compressor surge", compressor surge is when the turbo produces more air flow than the engine can ingest and it backs up through the compressor housing causing a horrible noisey poos; something like " whoosh nung ga nung ga whoosh churp churp!)

See link below @.47 seconds on, for close up of fun and mayhem!
http://www.youtube.com/watch?v=nCj6Spwl ... EA91A1E3FB

By the way these guys are cowboys, and there products are full of sh*t, but it is an excellent example.

Ouch!

[WideOpenThrottle]

I do get a bit of whoosh nunga but now that my boost is around 8-10psi maybe leave it for now as there are more pressing issues to deal with

eh WOT!

[Growler]

Now I'm sure the McLaren Honda Formula 1 development team wouldn't have used whoosh nung ga nung ga whoosh churp churp to describe the intricacies of setting up the turbos on the V6...
(McLaren MP4/4 for those who want to know).

[Habanero666]

Now I'm sure the McLaren Honda Formula 1 development team wouldn't have used whoosh nung ga nung ga whoosh churp churp to describe the intricacies of setting up the turbos on the V6...
(McLaren MP4/4 for those who want to know).

Yes thats right, but my last name isn't Mclaren and I don't out work to the UK Besides most of their engines just went "nanga nanga" didn't they?

They were a fantastic engine though, seriously. The fuel from memory had to be completely drained after each session or there would be a puddle of expensive goo on the workshop floor where the engine stood the night before!