Just curious... - Toyota Yaris Forums

sleey0 · 10-16-2010, 12:40 PM

I heard from a little birdy that fixed pulley sc are coming for the yaris, not the blitz.

Is it possible to use a boost controller to control a supercharger?

maxxman420 · 10-16-2010, 12:43 PM

im really not sure, but i dont think you use boost controllers on superchargers. its the size of the pulley that controls the boost. im not sure, but i think thats how it works.

severous01 · 10-16-2010, 02:38 PM

you could do a blow off valve, just like a turbo. they're actually teh same thing (cintrifugal any way) so, the pulley supplies the boost amount, but if you're over the amount you want you can BOV it just like a turbo

but it's easier to dial in SC pressure with pullies because it will always spin and produce pressure at the same amount at the same rpm at all times...not like turbo that depends on exhaust which always changed depending on load and rpm...as well as temps and all sorts of things

any way, if you got too much boost BOV it.

cali yaris · 10-16-2010, 02:51 PM

No. A waste gate controls boost, not a bov. I can run 8 psi and I can run 30 psi with the same bov and no changes to it.

cdydjded · 10-16-2010, 11:41 PM

Quote:

Originally Posted by sleey0

I heard from a little birdy that fixed pulley sc are coming for the yaris, not the blitz.

Is it possible to use a boost controller to control a supercharger?

Yes you can control boost with a by pass valve. They are also called "pop off valves". All the new VW's have it. It works by bleeding boost @ a desired level. HKS has has this for years......

cali yaris · 10-17-2010, 03:51 AM

^. That's the same function as a waste gate on a turbo system, right?

cdydjded · 10-17-2010, 10:07 AM

Yes a wastegate controls boost & a by pass valve can also be used also to control boost. There are actually some drag racers here that have turbocharged cars with no W/G & only use the by pass valve to control boost.

xbgod · 10-17-2010, 01:16 PM

Yes thats right a waste gate, just like the one I put on the Blitz S/C with a custom pully.

I used a custom fit one from Magnuson.

Aras

10-16-2010, 12:40 PM	#1
sleey0 Drives: 2008 Yaris LB Join Date: Jul 2010 Location: PA Posts: 899	Just curious... I heard from a little birdy that fixed pulley sc are coming for the yaris, not the blitz. Is it possible to use a boost controller to control a supercharger? __________________ "And that goes for any of you, never get put down from someone who gets jealous of you; build it and prove them wrong. There will always be haters and naysayers but those are also the ones who's cars are worth less than my seats." xbgod - 9/23/2010

10-16-2010, 02:51 PM	#4
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	No. A waste gate controls boost, not a bov. I can run 8 psi and I can run 30 psi with the same bov and no changes to it. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

10-17-2010, 03:51 AM	#6
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^. That's the same function as a waste gate on a turbo system, right? __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

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10-16-2010, 12:43 PM	#2
maxxman420 prop215. Drives: Toyota Yaris LB Join Date: Sep 2010 Location: San Diego, Ca Posts: 52	im really not sure, but i dont think you use boost controllers on superchargers. its the size of the pulley that controls the boost. im not sure, but i think thats how it works.

10-16-2010, 02:38 PM	#3
severous01 Drives: 2008 yaris, stripped, red Join Date: Jan 2009 Location: SE Texas Posts: 977	you could do a blow off valve, just like a turbo. they're actually teh same thing (cintrifugal any way) so, the pulley supplies the boost amount, but if you're over the amount you want you can BOV it just like a turbo but it's easier to dial in SC pressure with pullies because it will always spin and produce pressure at the same amount at the same rpm at all times...not like turbo that depends on exhaust which always changed depending on load and rpm...as well as temps and all sorts of things any way, if you got too much boost BOV it.

10-17-2010, 10:07 AM	#7
cdydjded Drives: Yaris LB Turbo Join Date: Aug 2006 Location: Miami FL Posts: 782	Yes a wastegate controls boost & a by pass valve can also be used also to control boost. There are actually some drag racers here that have turbocharged cars with no W/G & only use the by pass valve to control boost.

10-17-2010, 01:16 PM	#8
xbgod Banned Drives: "Burning It Down GTX2860RS XB" Join Date: Sep 2010 Location: Florida Posts: 349	Yes thats right a waste gate, just like the one I put on the Blitz S/C with a custom pully. I used a custom fit one from Magnuson. Aras