Alas your logic fails you
. The last time I checked 10psi is only 10psi unless a new type of physics has magically appeared in the last 20 minutes. I have totally stock unported heads, don't have an intake, just the unported KB piece. The flow through of my set up just saves me from detonation, doesn't create more power. .
You need to pay attention to my posts more.
My logic is just fine, it's your interpretation of it that needs a little tune up. Unported heads aside (although I’m was almost sure you stated they were ported a while back
), you've still got more displacement, blower specific cams and full bolt-ons. Just because you're making less boost, doesn't mean you're not making more horsepower. You are after all spinning the blower that much faster with the smaller pulley, forcing that much higher percentage of air to the engine with each revolution of the crank shaft, regardless of what your boost gauge says. The only reason you're seeing less PSI on the gauge, is because you've cut a lot of the inlet and outlet restrictions normally associated with the stock SOHC configuration. Seeing 10psi now, versus the 14psi a stock engine would with that pulley only means that you're now using that additional airflow (and as a result developing more horsepower) instead of having it backed up within the intake and exhaust restrictions of a stock GT engine.
If we followed your logic, it would mean that a stock 4.6L with a 1.7L and a modified 4.6L (or larger) both seeing the same boost figures on their gauge are both seeing the same amount of horsepower. Which as we all know, isn't at all true.
Again, the more "efficient" the engine combination, the more airflow it's going to use, instead of stacking it up within the intake and exhaust sides of the system.
One thing you are right about though, is that the addition flow capabilities of your engine does ward off detonation, since cooler ACT's are realized as a result.
An s trim or t trim will never see the levels you believe they will because they could never keep a belt from slipping at 15+PSI.
Belt slip has nothing to do with the capabilities of the blower and can easily be correct by increasing the drive vs. driven pulley diameter and/or modification of the pulley system (ie true grip "saw cut" style blower pulley, additional ribs, cog drive, etc).
As a matter of fact, it seems that it's the 1.7L that has trouble supporting the kind of horsepower the company claims, not the
Vortech. I've never seen anyone make more than about 550rwhp (even with a modified 4.6L and race gas) utilizing the 1.7L compressor. And that’s running it waaaay out of it’s efficiency range. In theory it has the physical capacity to support the airflow needed for the power levels, but in reality the ACT's are too overwhelming at those levels and timing has to be cut and fuel has to be added in order to keep the engine together. On the other hand, I have seen modified SOHC sporting a Vortech supercharger clock in a almost 650rwhp. And that wasn't a T-Trim, it was the smaller S-Trim. Count on the T-Trim being able to support another 75-100rwhp beyond that.
Who has the fastest modular on this website? Jim Fitzgerald. What type of blower does he have? A KB 2.2. His car runs 9's.
Jim actually runs a sports the 2.8L Kenne Bell race blower now, not a 2.2L. He ran mid-10's with the 2.2L of which there are plenty of Centrifugals based car capable of doing. If you'd like to compare race only blowers at that level, there are always Novi 3000's, F-Series ATI's and X, J, or Z-Trim Vortechs to compare it to?
Either way, things seem to be getting out of hand with the point of our debate.
Who is percieved to be the ultimate great knower of speed in the modular world? Tim from Modular Powerhouse.
I'm sure some here would like to believe that. There's no denying he's a talented tuner, but there are dozens of tuners putting out all kinds of power packages that build cars every bit as fast and reliable as Tim does. He’s only one of many.
The real power is from the KB units. Maybe not my puny 1.7. But i can tell you right now I won't back down from racing any centri car. By the time a centri car would "blow by me" we are way past the quarter mile mark or on the street doing well over 200kph which is just stupid anyway.
Ahhhh, finally, back on topic. Don't take this offensively, but it has nothing to do with you being afraid to race a Centrifugally blown car. There's a famous quote...."never let fear or common sense stand in your way" and for whatever reason, you seem to have no trouble bypassing both of those right now? No more than a year ago, you were admittedly clueless in regards to what was what as far as supercharging went. Now, all of a sudden you're an expert?!?
You're mixing up the facts and letting too much of the internet chatter from guys who speculate or just plain don't know any better go to your head instead of looking at the cold hard facts. The fact is, is that you’re pitting your heavily modified combination against a lesser set up and calling it a fair comparison.
Of course there are going to be flukes in either direction. Given the right circumstances and conditions a Honda could beat a Viper at least once. I mean hey.....even a broken watch is right twice a day, but this isn’t a Kenne Bell vs. the world argument. This is your 1.7L powered car vs. an S-Trim Vortech, or better being pushed to their limits with equally capable engine combinations. And I can tell you, with definitive conviction......all other factors being equal.......you'll lose a strait line quarter mile race against that car every time! And on the street it would be even worse, since the Centrifugal guy at least has half a chance of hooking things up on the bottom end. It has nothing to do with your level of bravery, or determination to win. Your particular blower just doesn't physically move enough air at an efficient rate to sustain the power levels needed in order to win!
Tweeked…..don’t look at this as though I’m bashing you. I think you’re a nice guy and I’ve always liked you. But you’re views are really skewed on this one.