I still feel with some internal modifications tuning fuel and raise the boost within reasogains. 9-12 you can have some serious gains. 9-12 is defenitly within the supercharger limits without goin crazy hell max in some of vortechs kits for hondas are 9 and there compression ratio is 11 or 12:1 cant remember off the top of my head

 

The Vortech is only about 70% efficient. Subtract pressure drops due to various twists and turns (friction) of the plumbing and aftercooler, adjust for inlet pressure drop, and the maximum boost is easily reduced by 50% of the rating. Not only that, but running the maxmum boost will actually reduce the power produced by the engine compared to running approximately 20% less boost.

More boost does not always mean more power.

 

your right more boost doesnt allways make more power but what im tryin to say is if you can build a motor to handle more forced induction it can handle more boost meaning more power im not sayin crank the thing up to 20psi and destroy **** im sayin drop compression, tune, and maybe make 2-3psi raise. And as far as pluming goes for pressure drop the 996 has nothing compared to my s4. granted its a turbo car but just ad an example i installed a fmic there for more pressure drop because of longer air travel creating a little lag but i just installed a little more agressive ecu and im still running 18psi tapered to 16 with no issue except the high rpm running out of steam..... damn ko3s

 

that would be the problem over the long haul.

 

Today i spoke with someone who has built many different types of motors and has delt with many different turbo, supercharger, and nitrous application. I asked him on a centrifugal supercharger if you could run the max psi that the blower is rated for and he says YES as long as the motor can handle it. Just throwing this out there for people who dont feel the Vortech V2 can handle past 6-8psi.

 

Well, since the Vortech is rated at 20 psi, your buddy is wrong. Not my opinion, but just a fact a physics. If he is ever able to get the V2 to deliver a full 20 psi to an engine, let me know and I will nominate him for a Nobel Prize.

Stop looking for the answer you want and accept the answer that IS.

 

Just out curiousity what automotive and or performance experience do you have? why would a company rate a blower to run max 20 but then be like owell when you put it on only run less than 10 thats not a good sales point.

 

My experience or credentials have nothing to do with this topic. Do some research on the ratng of compressors, their efficiency, input pressures, system restrictions, etc. You'll learn that it is impossible for a compressor that produces 20 psi rating, as measured by SAE J1723 Supercharger Testing Standard, to deliver 20 psi to your engine. The exact maximum boost delivered to the engine is variable based on the setup and the engine.

Or, just review your physic's book.

For example, on a stock 3.4 engine, the V2, running at the maximum speed will produce a boost of less than 10 psi. This amount of boost far exceeds the efficiency of the V2 and your engine will actaully produce less power than if run at a lower boost.

 

actually your automotive experience does matter considering doing it is waayyy different than hearing it or reading it. my friend is actually my teacher who teaches hot rod, built more motors than you can count, has a twin turbo gto he built and has a license to runs 6 secs. Thats where i got my info from show yours
show me where it says all the efficiencys of this model supercharger. also i never said on a stock motor. as far as restriction as ive stated before this car has slim to none piping everything is compact compared to alot of other cars.

 

Then have your teacher prove to you that he can get 20 psi (that's a total of 34.7 psi at sea level) into your engine from a V2. Then watch him hedge what he told you, just like you are now modifying the previous statements you made in this thread. Tell him that my Nobel nominationoffer still stands.

 

Still waitin to see the sae supercharger standard test you speak of.

 

I already gave you the SAE standard for superharger testing. Do some leg work yourself and you'll learn something. Then you don't have to depend on other's telling you what you should beileve.

 

Getting this back on track. Any update on the VF stage II? Did it ever get installed?

 

I agree! Seriously, no updates in over 3 months! Doesn't bode well....

I hope the 450 hp number is working. I'd love to get this blower on my car. Its not like 420 hp is slow, but that extra 30 ponies would make a big difference on my 01 C4 Cabrio...

This may even sway me from just waiting for a 997TT or GT-R to come down as a used car.

 

So where is the beef? Is there a stage II VF Supercharger or not?