08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Zfr vs wr-3

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Old 12-26-2012, 09:32 AM
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Originally Posted by AARON-SS-TC
there is like a $500 difference in turbos, so i hope the wr-3 is better than the zfr, but if not, why bother paying the extra cash for it???...
Like Matt said it's not about being better or worse, it's about getting a turbo that you want. Precision turbos are expensive, but you get what you pay for. Not saying the ZFR is bad, it's a great turbo. People in the cobalt community are so damn cheap lol
Old 12-26-2012, 11:48 AM
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yeah the borg stuff is great so dont take my comment as knocking the zfr because thats not the intent there nor am i knocking the turbo. its a great turbo. i ran the turbo(not the zfr specifically but the 6758). percision stuff isnt cheap.
Old 12-26-2012, 12:06 PM
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Originally Posted by Matt M
Yes, we have pushed the zfr6758 well past 500whp, but we don't ever recommend others try to push them that far. They are very well suited for 400whp on gas or 450whp on e85.
Why not matt, go ahead push it. lol
Old 12-27-2012, 10:27 AM
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Originally Posted by kdub1492
Like Matt said it's not about being better or worse, it's about getting a turbo that you want. Precision turbos are expensive, but you get what you pay for. Not saying the ZFR is bad, it's a great turbo. People in the cobalt community are so damn cheap lol
Precision turbos aren't really that expensive if you look at a comparable Garrett, Forced Performance, or Comp Turbo.

The WR-3 is a 5557 with a ported S-shroud by the way, don't know if that was answered.

Super nice turbo.

Last edited by Ch1ck3n; 12-27-2012 at 10:33 AM. Reason: I CAN'T SPELL
Old 12-27-2012, 11:08 AM
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Originally Posted by Ch1ck3n
Precision turbos aren't really that expensive if you look at a comparable Garrett, Forced Performance, or Comp Turbo.

The WR-3 is a 5557 with a ported S-shroud by the way, don't know if that was answered.

Super nice turbo.
That's pretty awesome then.
Old 12-27-2012, 11:21 AM
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Originally Posted by Ch1ck3n
Precision turbos aren't really that expensive if you look at a comparable Garrett, Forced Performance, or Comp Turbo.

The WR-3 is a 5557 with a ported S-shroud by the way, don't know if that was answered.

Super nice turbo.

It was being compared to a Borg Warner none of the others for price reference here. Not that the price is substantially different but my 5557 originally was more then my 6758
Old 12-27-2012, 04:37 PM
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My question was not really answered. I asked what makes the wr-3 worth $500 more than the ZFR. If there is no real answers, then that is the answer
If they both are reliable, and both make the same power, and are both bolt-on, why spend the extra money??? kinda common sense really, but whatevs...lol
Now if the wr-3 makes more power, or has a better power band, and is possibly more durable, then its worth the money obviously.
Old 12-27-2012, 05:46 PM
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There is no real way to answer that lol. I would say that the WR3 will make more power and has a better power and up top. I think the wr3 is a slighty larger turbo
Old 12-27-2012, 10:30 PM
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Originally Posted by kdub1492
There is no real way to answer that lol. I would say that the WR3 will make more power and has a better power and up top. I think the wr3 is a slighty larger turbo
I wouldn't speculate that it will make more power up top. The K04 exhaust housing is pretty tiny inside. That is going to be the limiting factor of that turbo. I'd be curious to see how much power it can support.
Old 12-27-2012, 10:37 PM
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Originally Posted by Matt M
I wouldn't speculate that it will make more power up top. The K04 exhaust housing is pretty tiny inside. That is going to be the limiting factor of that turbo. I'd be curious to see how much power it can support.
Like I said, it's just my guess. I'm interested to see what it can support also. I will be putting e47 and meth to it in the spring. But I don't have larger cams or anything else to really support fueling needs so I will prolly run out of space. haha
Old 12-27-2012, 10:49 PM
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Its not a 5557 either.
Old 12-27-2012, 10:57 PM
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Originally Posted by kdub1492
Like I said, it's just my guess. I'm interested to see what it can support also. I will be putting e47 and meth to it in the spring. But I don't have larger cams or anything else to really support fueling needs so I will prolly run out of space. haha
Im running a 5857 setuo with e47 and 7gph meth nozzel no issues at all
Old 12-27-2012, 10:59 PM
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Originally Posted by FF_ace
Im running a 5857 setuo with e47 and 7gph meth nozzel no issues at all
Good to hear man. Have you dyno'd the car yet?
Old 12-27-2012, 11:22 PM
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At 25psi in 100 degree az weather put down 426/368
Old 12-27-2012, 11:26 PM
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Originally Posted by FF_ace
At 25psi in 100 degree az weather put down 426/368
haha not bad with a ton of heat soak lmao
Old 12-27-2012, 11:51 PM
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Ya no fan on the car iats went through the roof
Old 12-28-2012, 03:43 AM
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damn. thats pretty gud FF Ace..
Old 12-28-2012, 10:24 AM
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Asking this question is like asking,

Blonde with big bewbs OR brunette with big bewbs...
Old 12-28-2012, 10:28 AM
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I was pretty much set on the ZFR until this thread popped up...Will be awaiting more info... I guess i'll be just buying supporting mods until then
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