Sprintex or Vortech, which setup has more potential?

[Turbowned]

Originally Posted by xjohnx

Nope. Another poster here (on the right coast). I'm sure he'll chime in with dyno's shortly.

Boy let's hope! This is exciting stuff. Seems like we're right on the cusp of seeing a lot of improvement with both blowers; perhaps it would be prudent to wait a month or two and make a decision then.

Seems like raising the factory redline is 100% necessary to enjoy the added power from the Vortech.

[sw20kosh]

Originally Posted by Dezoris

Here is a guide for you:

Stock Car with Vortech
301HP+ (Sustained Usage, requires clutch, Fuel Injectors, pump, pulley)
300HP E85 (Smaller Pulley, Fuel Injectors Pump)(Clutch wear will be heavy)
270HP 93 Octane (Change Fuel Pump/Injectors)
250HP 93 Octane (No fuel system or other changes)
220HP 91/92 Octane (No Fuel System or Other Changes)

Stock Car with Innovate Non-Intercooled
300HP+ (Not Possible without intercooler if at all)
280HP E85 Octane (In Future)(Pulley Change Fuel Pump/Injectors/Meth Injection)(Clutch Wear Heavy)
250HP E85 Octane (Fuel Pump, Injectors)(Consider Meth Injection)
220HP E85 (No Fuel System or Other Changes)
205HP 93 Octane (No other changes)
190HP 91 Octane (No changes)

This is incredibly messy Dezoris what are you doing.

I am starting to think you are getting very biased...

You don't need E85 to reach 220 whp on the twin screw. I almost reached that with 91 octane (216) with just a cat back.

93 octane to reach 205 whp?

Moto-mike tuned a vortech to 275 whp on 92 octane. I guess he is "in bed" with vortech too...

[xjohnx]

Originally Posted by Turbowned

Boy let's hope! This is exciting stuff. Seems like we're right on the cusp of seeing a lot of improvement with both blowers; perhaps it would be prudent to wait a month or two and make a decision then.

Might be. I don't think you can really go wrong with either kit though. Both look to have great potential. It all boils down to personal preference in the end.

[jamesm]

Originally Posted by fenton

Nothing i said is incorrect. Running the smaller pulley increases drag on the engine(more parasitic drag). The charger is ran harder(more rpm), the gearbox is ran harder(more rpm).

I didnt say it would heat up the charge or make less power.

that's only half right. it is true that the supercharger is spinning faster, and wasting some energy (not to mention wear and tear) just moving air from one side of the engine bay to the other. that is incredibly stupid, i agree.

what is not correct is the idea that doing so increases parasitic drag substantially. it does not. you're still asking the supercharger to compress the air to the same pressure ratio, which is where the vast majority of the parasitic drag comes from, that effort to compress air. moving the extra (wasted) bit around is far less a factor. this is pretty much exactly how BPV's inside of blowers work, except they vent to the vacuum side of the blower rather than the atmosphere.

i'm not in any was suggesting it's a good idea.

[Adeets]

Originally Posted by Turbowned

Boy let's hope! This is exciting stuff. Seems like we're right on the cusp of seeing a lot of improvement with both blowers; perhaps it would be prudent to wait a month or two and make a decision then.

Seems like raising the factory redline is 100% necessary to enjoy the added power from the Vortech.

I in no way agree with that, if you look in the FI dyno thread or my build you can see there's plenty of meat to my tune above 4k.

[King Tut]

Don't get turbowned @Turbowned . You know what the right answer is.

[Turbowned]

Originally Posted by Adeets

I in no way agree with that, if you look in the FI dyno thread or my build you can see there's plenty of meat to my tune above 4k.

Right but if you look at the plot on that Visconti video the power increases dramatically above 7k rpm; it would be a waste not to tap into that potential.

Originally Posted by King Tut

Don't get turbowned @Turbowned . You know what the right answer is.

If you're implying that a turbo is the right answer, I'm afraid I'll have to politely disagree

[Adeets]

Originally Posted by King Tut

Don't get turbowned @Turbowned . You know what the right answer is.

Get v-tuned?

[Adeets]

Originally Posted by Turbowned

Right but if you look at the plot on that Visconti video the power increases dramatically above 7k rpm; it would be a waste not to tap into that potential.

Read your post again and realize what you just said.

[Adeets]

Besides visconti do you know of any other "tuner" (I use that word loosely in this statement) that raises the max rpm?

290hp with only 200tq is just over spinning the motor.

[Robftss]

Originally Posted by jamesm

that's only half right. it is true that the supercharger is spinning faster, and wasting some energy (not to mention wear and tear) just moving air from one side of the engine bay to the other. that is incredibly stupid, i agree.

what is not correct is the idea that doing so increases parasitic drag substantially. it does not. you're still asking the supercharger to compress the air to the same pressure ratio, which is where the vast majority of the parasitic drag comes from, that effort to compress air. moving the extra (wasted) bit around is far less a factor. this is pretty much exactly how BPV's inside of blowers work, except they vent to the vacuum side of the blower rather than the atmosphere.

i'm not in any was suggesting it's a good idea.

Here is the math:

Power to drive a compressor = CFM x PSI/229

By bleeding off a portion of the increased CFM's air to maintain pressure requires more drive power.

I hope Centri guys try it, it will raise TQ output in the lower/mid rpm range but sacrifice efficiency (parasitic) during bleed.

[King Tut]

Originally Posted by Adeets

Besides visconti do you know of any other "tuner" (I use that word loosely in this statement) that raises the max rpm?

Toni has my rev limiter at 8000 RPM on my FA20club tune just like Visconti did. I have been running to 8000 RPM for 15,000 miles now.

[King Tut]

Originally Posted by Turbowned

If you're implying that a turbo is the right answer, I'm afraid I'll have to politely disagree

Move to a real state that doesn't do emissions testing.

[Adeets]

Originally Posted by Robftss

Here is the math:

Power to drive a compressor = CFM x PSI/229

By bleeding off a portion of the increased CFM's air to maintain pressure requires more drive power.

I hope Centri guys try it, it will raise TQ output in the lower/mid rpm range but sacrifice efficiency (parasitic) during bleed.

Any chance can I get you to break down that formula into designations, mainly I don't know why you divide psi by 229.