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Old 05-07-2010, 01:57 PM   #26
Equilibrium Tuning
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Quote:
Originally Posted by jason miller View Post
Concillian is right on the money. I was glad you posted this, but there really isn't much else to say about it. Thanks for taking the time to share.
Yep... that's how it goes. Post a straight forward, complete comparison and there's not enough drama to keep the thread up .

Oh well. Hopefully people will be able to find this when they need by searching.

-- Ed
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Old 05-07-2010, 02:06 PM   #27
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I am curious to see what the xtr wheel would have done. Though this is a good 8cm vs 10cm housing comparo.
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Old 05-07-2010, 02:26 PM   #28
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Quote:
Originally Posted by Equilibrium Tuning View Post
Yep... that's how it goes. Post a straight forward, complete comparison and there's not enough drama to keep the thread up .

Oh well. Hopefully people will be able to find this when they need by searching.

-- Ed
make this a comparison template for garageGT Ed. This is how its done ,lol
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Old 05-07-2010, 04:53 PM   #29
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make this a comparison template for garageGT Ed. This is how its done ,lol
What? You mean I can't show that the 8cm housing spools faster AND makes more power?? Just loosen a clamp a bit and we're there! .


-- Ed
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Old 05-07-2010, 07:48 PM   #30
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wow...the 10cm housing is a for sure winner, no doubt no matter what...well unless you auto x
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Old 05-08-2010, 10:54 AM   #31
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Maybe I am not looking at the same graph, but 8cm looks like a winner to me.
Only 28hp loss but more torque below 3700rpm.

P.S. Excellent apples-to-apples comparison.
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Old 05-08-2010, 11:43 AM   #32
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^^^ some see it this way. I think its worth a lil loss. I think you would see a bigger improvement on a motor that naterally flows more. "big cams, PnP heads, etc"

Or if someone PnPd and coats everything from the turbo cold side to the hot side and "everything" in between.

The turbine housing is the true bottle neck. Also a nice thing about the larger housing is it will drop the EGTs, in turn making the engine less prone to knock.

<<<

Not trying to rip on this car at all, it makes good power IMO. Just stating that it currently has a pretty basic mod list. With some other mods, it "should" show more.

Last edited by rexworx; 05-08-2010 at 11:50 AM.
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Old 05-08-2010, 02:22 PM   #33
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Quote:
Originally Posted by antonch View Post
Maybe I am not looking at the same graph, but 8cm looks like a winner to me.
Only 28hp loss but more torque below 3700rpm.

P.S. Excellent apples-to-apples comparison.
Its all relative to what you want really. 28hp peak isn't anything to sneeze at and in reality when you're really on it you won't be in the rpm range where the 8cm shows its low end advantage for long.
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Old 05-08-2010, 03:25 PM   #34
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Originally Posted by kellygnsd View Post
Its all relative to what you want really. 28hp peak isn't anything to sneeze at and in reality when you're really on it you won't be in the rpm range where the 8cm shows its low end advantage for long.
Exactly. It's always a balance between response and power. Which is better depends entirely on the application and preference.

Thanks
-- Ed
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Old 05-08-2010, 03:29 PM   #35
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low end tq is for people who like to FEEL like they're going fast.....

high end hp is for people who actually like to go fast
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Old 05-08-2010, 06:42 PM   #36
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Quote:
Originally Posted by Phatron View Post
low end tq is for people who like to FEEL like they're going fast.....

high end hp is for people who actually like to go fast
...and for people who like to keep their motors near redline all the time
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Old 05-08-2010, 07:01 PM   #37
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Quote:
Originally Posted by stidoc View Post
...and for people who like to keep their motors near redline all the time
You can't really go all that fast revving out to 3500 rpms
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Old 05-08-2010, 07:21 PM   #38
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i appreciate this comparison ed, nice job. curious of the inlet size?
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Old 05-08-2010, 07:22 PM   #39
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Quote:
Originally Posted by Phatron View Post
low end tq is for people who like to FEEL like they're going fast.....

high end hp is for people who actually like to go fast
Lol, I like it. Best statement to date.

Also nice to see an apples to apples comparison. Thanks for the info. I'm still glad I went with the xt-r. Otherwise I'd always get that "what if" feeling.
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Old 05-08-2010, 08:56 PM   #40
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You can't really go all that fast revving out to 3500 rpms
I can...and all the way to 6K too
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Old 05-13-2010, 03:51 PM   #41
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i appreciate this comparison ed, nice job. curious of the inlet size?
I believe its a 3", but not 100% sure.

-- Ed
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Old 05-13-2010, 06:06 PM   #42
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great test and info ed. if i stay stock location, 20g-xt with 10cm hotside
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Old 05-16-2010, 09:39 PM   #43
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Originally Posted by nhat View Post
great test and info ed. if i stay stock location, 20g-xt with 10cm hotside
I'd be curious to try a 20G with the 10cm hot side. I'm not sure if you'd see the same type of gains at lower flow rates.

-- Ed

Last edited by Equilibrium Tuning; 05-16-2010 at 11:58 PM.
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Old 05-16-2010, 10:24 PM   #44
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Quote:
Originally Posted by Equilibrium Tuning View Post
I'd be curious to try a 20G with the 20cm hot side.
when did they start making that
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Old 05-16-2010, 10:29 PM   #45
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Quote:
Originally Posted by Equilibrium Tuning View Post
I'd be curious to try a 20G with the 20cm hot side. I'm not sure if you'd see the same type of gains at lower flow rates.

-- Ed
Where do I get one of those
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Old 05-16-2010, 10:32 PM   #46
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^^ ur a pretty slow ninja
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Old 05-16-2010, 11:59 PM   #47
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when did they start making that
Didn't you guys hear?? You're way behind the times! 20cm is where its at now!

-- Ed
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Old 05-17-2010, 09:38 PM   #48
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I know you posted the temps on this tune, but what about the temps in the after tune? I suppose relative pressure (due to weather) may by a bit different too.


Phatron: You talked about spooling slower due to conservative td values. I don't see it. Doesn't an old DOM3 have a 15 lb WG spring? If so, then boost threshold up to 280 wtq or so is gonna be completely unaffected by what boost controller/MBC you are using (not saying I have a preference, but I like Hybrid). By the looks of the curves, they both build boost beyond 15 psi by about the same rate.
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Old 05-18-2010, 12:16 PM   #49
Phatron
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^^ i think you misunderstood what i said. i wasnt even talking about this car as its running a mbc.....so td's dont even come into play.
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Old 05-18-2010, 01:55 PM   #50
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Quote:
Originally Posted by LittleBlueGT View Post
I know you posted the temps on this tune, but what about the temps in the after tune? I suppose relative pressure (due to weather) may by a bit different too.
The temps were within 2-3 degrees between the two tunes. We lucked out there .

Quote:
Phatron: You talked about spooling slower due to conservative td values. I don't see it. Doesn't an old DOM3 have a 15 lb WG spring? If so, then boost threshold up to 280 wtq or so is gonna be completely unaffected by what boost controller/MBC you are using (not saying I have a preference, but I like Hybrid). By the looks of the curves, they both build boost beyond 15 psi by about the same rate.
Even if the wastegate spring is 15psi, a boost controller will get you to that 15psi significantly faster than just the wastegate on its own. Wastegates open progressively, so as you hit 5psi, it opens a bit, 10psi, it opens more, 15psi, it opens more and stabilizes boost. With a good boost controller, the wastegate doesn't see any boost until it gets very close to its target. This allows the wastegate to stay closed much longer and greatly improves spoolup.

-- Ed
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