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Old 09-27-2006, 03:29 PM   #1
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Default Turbo Comparisons

Just for general interest, I figured that I'd post dyno charts of three turbos for comparison:

1) TD04-15G (GReddy turbo) on a 1.6 at 8-9psi
2) T3 Super 60 on a 1.6 at 9psi with boost control issues (hence the dip in torque)
3) GT2554 on a 1.8 at 8psi with fuel issues at the time (again accounting for the dip in torque)

First graph is just HP showing very similar results.
Second graph shows torque.

Interesting how similar the GReddy and T3 super 60 really is (as already pointed out by braineack).

You can really see where the 0.2L of extra displacement + smaller turbo really helps that GT2554 spool and create lots of torque early on.

Funny how we all have little snafus right around 4k rpm.
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Old 09-27-2006, 03:38 PM   #2
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Without that dip they all would have been about the same in HP
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Old 09-27-2006, 05:08 PM   #3
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I wonder how much of the bb center is reponsible for the immediate torque jump on the 2554. Is it that much smaller than a TD04? And I thought the T3s60 was bigger than the TD04? I wonder if that would show at higher boost levels.
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Old 09-27-2006, 09:45 PM   #4
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dang...I like the tq on the 1.8 w/ the gt25...what would it do if the fuel was right? Just not dip?
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Old 09-28-2006, 12:14 AM   #5
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Quote:
Originally Posted by m2cupcar View Post
I wonder how much of the bb center is reponsible for the immediate torque jump on the 2554. Is it that much smaller than a TD04? And I thought the T3s60 was bigger than the TD04? I wonder if that would show at higher boost levels.

Tom, post the same with my 12psi spiked run
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Old 09-28-2006, 02:50 PM   #6
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Quote:
Originally Posted by braineack View Post
Tom, post the same with my 12psi spiked run
As you requested...
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Old 09-28-2006, 03:06 PM   #7
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yeah, once it fully spools it takes off, I'm sure 15psi on that thing would make some great numbers.


The curve on the GT255 looks promising, I bet it's fun with all that low end.
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Old 09-28-2006, 03:08 PM   #8
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Quote:
Originally Posted by braineack View Post
yeah, once it fully spools it takes off, I'm sure 15psi on that thing would make some great numbers.
Why don't you show us?
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Old 09-28-2006, 03:14 PM   #9
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Oh I will......just not yet.
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Old 10-04-2006, 01:46 PM   #10
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Quote:
Originally Posted by brgracer View Post
Just for general interest, I figured that I'd post dyno charts of three turbos for comparison:

1) TD04-15G (GReddy turbo) on a 1.6 at 8-9psi
2) T3 Super 60 on a 1.6 at 9psi with boost control issues (hence the dip in torque)
3) GT2554 on a 1.8 at 8psi with fuel issues at the time (again accounting for the dip in torque)

First graph is just HP showing very similar results.
Second graph shows torque.

Interesting how similar the GReddy and T3 super 60 really is (as already pointed out by braineack).

You can really see where the 0.2L of extra displacement + smaller turbo really helps that GT2554 spool and create lots of torque early on.

Funny how we all have little snafus right around 4k rpm.
Interesting but something is really wrong with that T3 at 9 PSI, it should be making a good deal more power. If you look at that spike, you can see the thing wants to shoot to the moon. On a stock 1.6 I was making roughly 235 RWHP at 12 PSI with the T3 intercooled and a Haltech.

Mark
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Old 10-04-2006, 02:22 PM   #11
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I was using an EBC that didn't want to work right on the dyno, it kept spiking, dropping and then holding (I wasn't smart enough to throw the MBC back on real fast). I plan to be back on the dyno within two weeks.

That and I was making 170/145 at 6psi.

Last edited by Braineack; 10-05-2006 at 10:13 AM.
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Old 10-05-2006, 01:43 AM   #12
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yeah mark is here :gay:
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