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Which is the best supercharger??

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Old Jan 18, 2006 | 10:53 PM
  #21  
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so the only objection to stillen is the ugly hood...... but the power on it is pretty nice.... especially on the low to mid.........
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Old Jan 19, 2006 | 05:04 AM
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Originally Posted by sentry65
that's a nice graph


yeah if you get 3.91 gears, it'll make the low end power that much better anyway even though it won't make the actual engine work any harder. Then when you go to shift, the rpm's will be higher than if you had longer or stock gearing, so you'll stay right there in the peak torque range with the vortech

having a light clutch will make you drive a few rpm's higher than normal and many people are now raising the idle to around 1000 rpms with vortechs. To me it sounds like a winning combination for balance where all the parts work together.

You can always make more power with the vortech also, just get some cams, headers, smaller pulley etc, and maybe eventually a built engine and bigger blower


the turbo will be way more fun driving normal though.
Sentry,, do you have the 3.91 and if so have you got a dyno chart of it?? Would be really interested in seeing the tq. Thanks
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Old Jan 19, 2006 | 09:26 AM
  #23  
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the 3.91 does not make the engine generate more torque so it won't show up on a dyno.

It's the same thing that at 6600 rpms in 1st gear, the engine puts out as much power as being in other gears at 6600 rpms, yet we all know that lower gears give you more oomph and accelleration. That's what the 3.9 gears do. Yes I have them, but they don't show up on a dyno chart unless you set the graph up to read power over speed instead of power over rpms
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Old Jan 19, 2006 | 09:44 AM
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Originally Posted by sentry65
the 3.91 does not make the engine generate more torque so it won't show up on a dyno.

It's the same thing that at 6600 rpms in 1st gear, the engine puts out as much power as being in other gears at 6600 rpms, yet we all know that lower gears give you more oomph and accelleration. That's what the 3.9 gears do. Yes I have them, but they don't show up on a dyno chart unless you set the graph up to read power over speed instead of power over rpms
Appreciate that gearing does nothing to increase Engine Tq want to see where it is shifted in the RPM. Gearing slides the max acceleration (Tq.)/gear to the left of the power curve...An overlay of before and after would be of great value for those that are thinking about this mod and wanting to see what the tq differences are/delivered to the wheels over stock gearing..Thanks
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Old Jan 19, 2006 | 10:15 AM
  #25  
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it's just 10% more across the whole powerband in each gear. It just multiplies every gear by 10% more
Attached Thumbnails Which is the best supercharger??-3.9vs3.5.jpg  

Last edited by sentry65; Jan 19, 2006 at 10:19 AM.
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Old Jan 19, 2006 | 02:34 PM
  #26  
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Originally Posted by 350z_this
so the only objection to stillen is the ugly hood...... but the power on it is pretty nice.... especially on the low to mid.........
Stillen.

Some people like the hood. I do for sure and I have built TT set-ups on Z's and G's, yet used to have Stillen Stage 3 set-ups. As for the Stillen power and reliability, it is great for what it is. Still own one but is sitting on a shelf.

M
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Old Jan 19, 2006 | 05:31 PM
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I have a procharger, borla tru dual, pro-1 cats, AAM ecu, tune and plenum......i dyno'd 363whp and 306 lbs. or tq. on a dyno jet, i will crack 400 this spring..... stillens a goods kit if your lookin for a more conservative kit, i personally think they are expensive and the numbers aren't great, i dont think the hood is ugly, its just more money your forced to spend, i think the vortech is a great kit....... with mods the power will come.... there is def. alot more people on this board with vortech's then prochargers....... id say vortech or procharger.... i think out of the box....... procharger is good but def needs a good tune......
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Old Jan 20, 2006 | 04:33 AM
  #28  
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Originally Posted by sentry65
it's just 10% more across the whole powerband in each gear. It just multiplies every gear by 10% more
Unfortunately the chart says nothing about Tq..Remember its a zero sum gain in Tq.. Whats picked up in the lower RPM's is lost at the higher RPM's..
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Old Jan 20, 2006 | 04:51 AM
  #29  
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Id put a vote in for Procharger with your choice of piggyback. I have seen some crazy numbers from this kit. Show me 1 Vortech auto or manual that can run 12.3 @ 113mph-like a 360who auto Procharged car did on street tires and I may change my mind. Ive also seen a 500+whp Procharger set-up!
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Old Jan 20, 2006 | 07:04 AM
  #30  
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Originally Posted by jpc350z
Unfortunately the chart says nothing about Tq..Remember its a zero sum gain in Tq.. Whats picked up in the lower RPM's is lost at the higher RPM's..

ok

I haven't noticed a loss in torque in the upper rpm's. Just a gain across all rpms with the only disadvantage is you have to shift sooner
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Old Jan 20, 2006 | 03:32 PM
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alberto good point, i seen that video and that **** is sick..... i dunno how he did it, but it was done......
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Old Jan 20, 2006 | 03:49 PM
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If you plan on modding you motor and want to spin more boost from a supercharger then Procharger is the way to go. The blower is rated for 80,000rpm's and I've spun mine near 100,000rpm's with no trouble. Call Vortec and ask them how fast they can spin the 350Z model. I'm sure you'll find it just can't be spun as fast.
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Old Jan 20, 2006 | 03:51 PM
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Ive also seen a 500+whp Procharger set-up!
And that would be me....and I love my procharger! It sucked when stock but now it's really mean.
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Old Jan 20, 2006 | 04:13 PM
  #34  
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Originally Posted by trefling
If you plan on modding you motor and want to spin more boost from a supercharger then Procharger is the way to go. The blower is rated for 80,000rpm's and I've spun mine near 100,000rpm's with no trouble. Call Vortec and ask them how fast they can spin the 350Z model. I'm sure you'll find it just can't be spun as fast.
Glad to see some high HP out of a SC . I think the ATI and Vortech are like comparing apples and oranges when it comes to SC's . The Vortech is a bigger blower with bigger blades and spins slower to produce the same air flow and psi as the ATI spinning much faster with a smaller blower and smaller blades . I would think they both have thier +'s and -'s
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Old Jan 20, 2006 | 05:42 PM
  #35  
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treflin, u have a built motor, correct,and how much boost are you pushing.....
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Old Jan 23, 2006 | 06:10 PM
  #36  
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treflin, u have a built motor, correct,and how much boost are you pushing.....
Remember boost is all relative to how well the engine breaths. Yes I have a built motor with 8.5.1 CP pistons and I probably should have used a slightly higher compression ratio. I"m pushing about 13.5psi and with the 50shot of NOS the boost jumps up to 15-16. I love it, you hear the supercharger comming from the front of the car and then the super loud exaust from the rear. This car refuses to be ignored
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