BOV on supercharger

[Brick]

can this work? saw Andy7447 BOV setup on his top mount (3sgte) so would it work on my s/c?

[CozmoNz]

Short answer nope.

[DB4G63]

Ok Why would you need a BOV on a supercharger?

Superchargers dont tend to build up the pressure, its based on how fast they are spinning, so theres no release off excess boost... or "Pissssssssshhh!"

However my GTZ when I bought had a turbo timer.... shows how little people know about the old roots blower....

[Brick]

Ok Why would you need a BOV on a supercharger?

why not

o well was worth a try

[no_8wire]

Why would you want one? "bling" factor?

[Rick]

I am going to be running a BOV on my ZE powered AE85, but I am not going to be using the factory setup the t/body is going to be after the supercharger which is why I need a bov. Tim has one in his ZE powered ae86.

[Mr. Mainstream]

No Skank Whistle For Brick

[dash]

interesting setup Rick
Is that pipe stickin up to the side for the air cleaner ?
Which SC do you have ?
The stock ze induction is a compact package, but some claim restrictive. Is that the reason you went with the tb after the sc arrangement ?

When you look at the impressive results miata guys get from their various add-on superchargers... it really seems worthwhile, and something I may wanna try on my spare gze just for kicks.

[beeker]

I am going to be running a BOV on my ZE powered AE85, but I am not going to be using the factory setup the t/body is going to be after the supercharger which is why I need a bov. Tim has one in his ZE powered ae86.

I was gonna say that. Tim ran hybrid SC12 setup and had ~122wkw at the wheels. He has (or had) some of his bits on trademe now.

[Rick]

That isn't my setup, but I can answer your questions, the pipe up the side is where air is sucked into the supercharger, I dont think tim runs a air filter, on his setup he has a SC12 supercharger.

The stock ze induction is a compact package, but some claim restrictive. Is that the reason you went with the tb after the sc arrangement ?

I feel that the factory setup is quite restrictive, and the factory top mounted intercooler is a joke, but it is all a compromise, to fit a different less restrictive setup into fwd cars etc.. would be costly and in fwd format there is just not enough room, but when in a rwd this allows more room and the factory setup can be changed for a less restrictive one and the reasons I have the t/body in my setup after the supercharger is that Iam using a intake manifold from a N/A 4age, which has the t/body on the end of the plenum chamber, I think Tim said that it make it more responsive having the t/body after the supercharger.

[soopachargen]

I'm doing the sam with my sc14 gze in my front drive rolla. Im gonna use a custom plenum and im considering a 20v head for what looks like a higher port exit angle on the head which may help to clear the charger better. I'm hoping to get away with a gts-t BOV recirculating into the intake after the AFM and a TPS activated switch for the charger clutch. Still yet to decide on a computer but leaning towards a Link.

[gdsup]

this maybe a better view



The throttle body was moved to after the supercharger, like a n/a type manifold, done soley for throttle response.
The supercharger builds so much pressure on lift off that you need really good intercooler piping and joiners, and a large blow off valve.

but please noobies note this or any bov wont work on a standard type setup, and the reponse is so sudden makes it a slut to drive on the street
( bov is freakin noisey tho )

this is run using standard ae92 DLI ecu

boogergrom - when supercharging n/a cars at a shop i used to work at, we would use a vacum switch that operated at around 3-5 inchs of vacum via a relay to switch it on, abit less abrassive on the supercharger clutch than tps switching

runs no air filter just bellmouth, good for induction noise + if the air is clean enough for me, its clean enough for the car

[soopachargen]

so do you reckon mine will be horrible to drive on the street tim??
any thoughts of a way to get around this??

[Mr Revhead]

if the air is clean enough for me, its clean enough for the car

yeah but you have built in filters whereas ya car doesnt

[gdsup]

yeah but you have built in filters whereas ya car doesnt

well, i usually let my motors overheat, run big ends or det to the point they blow up 1st, so yeah im the sceme of things...

besides, the supercharger should mince any dirt into very fine particles, and the intercooler will catch the big chunks that slip thru

bogergrom - They biggest plenium you can have will help, but yeah the instant drive of the supercharger is crazy, bov gets mega surge at half throttle, unless in high rpm its a bit of a on off system - but in saying that i had relitively short runners (perhaps 80-100mm ) and 2.5 in plenium

[Mr Revhead]

well when u look at it that way.....