I plan on getting a Vortech High Output Supercharging System.....but is there anything else i need to upgrade so that i dont screw up my engine?? What is the MAX HP i can run on my stock engine before i run into problems?

 

Most people report about 450-475 RWHP as a safe limit on the stock engine internals.

The biggest factor isn't so much the overall HP, but the quality of the tune. Detonation and incorrect A/F ratio is what is most likely to kill your motor rather than "excess HP". Make damn sure your fuel system is up to spec, and your tune is right. That is the real key.


You might also think about beefing up other parts of the car. The stock manual transmission is only rated to 360 ft-lb of torque. The clutch has a similar value. I also suggest suspension mods so that you can actually USE the HP that your engine will be making. There's no sense in just spinning tires.

 

i agree. There tons of topics on what you need and what you "should" have w/ a sc.

 

no....as CrazyAl said, just make sure the person doing the tune, knows what he's doing...that can make or break things



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I suggest you take it to a shop to get tuned. But do no leave it. Stay and watch as they tune it. Look at the A/F ratios, and if you don't think it looks right (read about them), then ask them to do it again. This is the MOST important part of performance modifications. "It's All In The Tune."

~Fred

 

lots to read on the forums on this one...
If I may interject my opinion.. I would highly consider getting a Twin screw or even a roots style blower before getting the Centrifugal sytle ones... Most every blown moter I've read about is due to the vortech/paxton style centrifugal supercharger.. they usually run 7-10 PSI in order to get them pumping out the desired amount of power.. This is often times a cause for a blown engine...
Tuning is Very Key.. as everyone will agree over and over..
However.. Supercharging in general is risky... You can help lower the risk by using a Twin screw (kenny bell, saleen) or a roots style(eaton or other) sc, as they provide plenty of power at a lower PSI (usually in the 3-6 psi range).
Psi seems to be more of the enemy than jsut HP.. so if you can get the same usuable power for a stock motor, it just makes sense to do it with less Psi..

Down side here, is that the roots/twin screw sc's are more expensive often times..
I got my Saleen for under $4500, and even for $1000 more.. it would have been worth it..! It's awesome.

As far as additional parts go.. usually if you are running in the 400-450Hp range, a larger mass air sensor (90mm is common), larger fuel injectors (39# vobra take-offs) and a really good tuine are the best things to add to the mix.

As previously mentioned.. it seems that with proper tuning and enough fuel delivery.. most engines are running healthy with 460-500 flywheel HP, (around 400-450 rear tire HP). once again... TUNING IS KEY

What ever you decide.. do plenty of research, and make a few friends. The install process itself is quite enjoyable, and for someone interested in the challange, it feels great to be part of the process.

Good luck!