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Old 08-19-2005, 03:30 PM   #1
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FS/VF Stg. 2 or Procharger?

Hey guys, on an auto with all bolt ons, what would be the best blower kit?
The FS/VF Stg. 2 kit, or Prochargers kit. I know I will get more help with tuning and such from FS/VF, but for most power gains, and upgradability which kit is better?
If I went with the procharger, a FMIC would probably be in the future, while I dont see much upgrading with the FS/VF except for there, not yet released heat exchanger.

Thanks for the help, Shawn


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Old 08-20-2005, 06:40 AM   #2
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With an ATX I wouldn't consider either of these for the street. Maybe a PC for the track. I would go with a FR BBK JRSC or wait for a PW kit. The ATX needs something that make bottomend TQ.
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Old 08-20-2005, 07:02 PM   #3
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Pw kit, no too much money, and wouldnt be able to use my T/b, intake mani, or any of that type of stuff i already purchased.

Why the JRSC, just cause its a roots type, and makes the torque down low? but regardless it doesnt make enough power for my tastes.. It will have a lentech with trans brake if that makes a big difference.

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Old 08-20-2005, 07:38 PM   #4
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First you need to swap out that atx. It wont be able to handle the added power, trust me, been there and done that. Put a MTX75 in then go for it.
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Old 08-20-2005, 10:12 PM   #5
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It makes a better range of power than the VF or PC for the ATX. Maybe not peak hp that the PC has. On the street it will have no lowend. You will get tired of needing to rev that ATX to make any noticeable power. Your not driving a dyno sheet around with peak numbers on it.
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Old 08-21-2005, 01:46 PM   #6
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Originally posted by Yel900rr
It makes a better range of power than the VF or PC for the ATX. Maybe not peak hp that the PC has. On the street it will have no lowend. You will get tired of needing to rev that ATX to make any noticeable power. Your not driving a dyno sheet around with peak numbers on it.
True, but will the low end power make up for its lower peak power and provide a faster ride in the end, or no?
Anytime sombody wants to play, the ATX is usually revved out regardless so I dont really see the high rev's needed being a problem.. if you get on it, it downshifts obviously.
Im just trying to make a fun little street, and occasionaly strip car, and im keeping the automatic, though it will be a lentech, no manual swap.

Thanks, Shawn
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Old 08-21-2005, 08:08 PM   #7
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The ATX we had built ran a 14.9 with the big boost kit. Yes your car will be faster give up a few peak HP for a better range of power and better power when your just out tooling around not revving the heck out of it.
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Old 08-21-2005, 10:51 PM   #8
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Really now? I would have thought the top end power of the centrifugal blowers would make up for there lack of low end. I need the opinions of some others before I can fully get set on the JRSC w/BBK. Also, what all was done on your car to make it run the 14.9?

Thanks, Shawn
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Old 08-22-2005, 07:12 AM   #9
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The JRSC makes 175 whp and the FS SC makes 179. I don't think 4 whp will make up for the bottomend and midrange. Thes are on manual transmissions. The Procharger will make more 190 to 200 but you will need it tuned right.
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Old 08-22-2005, 07:13 AM   #10
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The car built had a Race header, UDP, FR 2 cams and cam gears.
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