In the following thread im going to ask several questions pertaining to modifying/customizing the s2000 Vortech Supercharger Kit, so if anyone who has one, and/or has illicit knowledge of the kit, please read and reply.

1) Aftermarket BOV?

*How difficult exactly is it to upgrade your bypass valve that came with the Vortech kit? For example, you want to hook up an HKS Type S BOV to recieve in what I like to think that sexy "pshhhtttt". Seeing that the kit, from what I'm told, will harvest an aftermarket BOV as long as you could provide some sort of adapter plate, what steps would you need to take? I imagine some sort of thread adapter with an airway... Has anyone done this, and/or have any knowledge on the subject? Could a machine shop do it or does some online company offer it already?


2) Boost Control?

*Now I am aware that the kit uses your stock injectors, and utilizes a fuel regulator to increase flow. My question is, can you adjust it to increase your boost? Of course if not this would be a big disadvantage of comparing a centrifugal supercharger to a turbo as compared to the ability to install a digital (or mechanical) boost controller. Well that is unless you rigged up a wastegate I guess, which in mine and Chris from Bullet Proof Automotive's discussion of the idea was deemed "ridiculous." (Speaking of which thanks for all your input, youre a cool guy ) I also considered the route of installing larger injectors, but since the kit comes standard with a pre-calibrated fuel management system, would that mean with bigger injectors you would need to re-calibrate your system? Does Vortech sell the tools needed to do so, along with what supplies would you need (essentially I'm looking for ways to increase boost from the charger since it could handle more where as the Comptech kit, from what I'm told, can not.)


3) ESM?

*Does the kit need some sort of ESM to help ensure that the from wont see a boost
signal from the MAP Sensor? Or does it not experience this effect?


Anyone who can help me with these questions with first hand knowledge I would much appreciate it, I have tried finding as many online sources for FAQ on the Vortech kit but I am only able to reach the computer every once and awhile so I am hoping this group at s2ki will be able to quickly and profficiently help me out.



Thanks,
Blake

 

Umm the reason why I'm gussing you have a bypass valve is because the kit is still utilizing the MAF sensor. If you have a BOV the MAF will not detect the decrease in manifold pressure in time, therfor not telling the injectors to pull back causing them to push more fuel than can be burned and making the engine stall or choke between shifts or when ever you let up the gas. That wouldn't be fun. The only way around it would be to take out the MAF and use a VPC GCC combo, or get a standalone unit, both pretty pricey.

Sam

 

[QUOTE]Originally posted by BPUKiller
[B]

Umm the reason why I'm gussing you have a bypass valve is because the kit is still utilizing the MAF sensor. If you have a BOV the MAF will not detect the decrease in manifold pressure in time, therfor not telling the injectors to pull back causing them to push more fuel than can be burned and making the engine stall or choke between shifts or when ever you let up the gas. That wouldn't be fun.

 

acutally, Bov is to relieve pressure in the intake track between supercharger and the throttle plate, this way when you jump off the throttle the pressure won't back to to the supercharger compressor wheel and cause surge. as far as the boost goes, only way to modify belt driven supercharger is to change the pulley on either supercharger or the crank. the smaller you go, more boost.

 

Let me clairify, I ment letting off the throttle suddenly after getting on it.

Sam

 

Sounds like the words are causing confusion.

I have the Vortech kit. Even though they call their "valve" a bypass, it is really a blow off.

It is always open(even at idle) and as you increase the boost, it closes. When you shift, or stop accelerating it opens and vents the current and future boost to atmosphere until you get back on it again.

If I run my car up to 9000rpm, and lift off without shifting, it will make a loud fluttering noise as it dumps, and then it will whine a very high pitch noise down to about 4000rpm as it bleeds off boost being created by the supercharger that isn't being used.

The only parts on this valve are the bottom flange where it mounts to the aftercooler, a "breather" (copper colored cone to get atmosphere pressure) a large tube which it vents the boost out of and a barbed fitting in which the vacuum line fits to push and pull the piston up(along with the help of the internal spring). If this was a bypass or recirculation valve, there would be a hose on the end of the large tube that vents to atmosphere.

Updated with picture for reference:


Vortech supplied "blow off" valve,

Hope this helps.