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Old 07-17-2008, 05:08 PM   #41
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and add mine
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Old 07-17-2008, 05:38 PM   #42
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Quote:
Originally Posted by y8s View Post
and add mine

here we go:
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GT2554 spool is horrible-spool.jpg  
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Old 07-17-2008, 05:50 PM   #43
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here we go
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GT2554 spool is horrible-boost2.jpg  

Last edited by compuatic; 07-17-2008 at 06:00 PM.
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Old 07-17-2008, 06:12 PM   #44
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i tried to find a picture of the S3 manifold to compare Savington's to the rest but I gave up on the page when it tried to load 5 megs of thumbnails.
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Old 07-17-2008, 06:39 PM   #45
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mo, if anything, add some timing between 1500 and 30ooRPM and 100-150kpa

curious, what does your timing map look like?
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Old 07-17-2008, 06:43 PM   #46
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This was also a suggestion made by Corky, This is what i'm using Scott, let me know your opinion...
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Old 07-17-2008, 06:48 PM   #47
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Why the **** do i get the pink line?
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Old 07-17-2008, 07:20 PM   #48
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Quote:
Originally Posted by paul View Post
Why the **** do i get the pink line?

Cause you're a ------, alright?
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Old 07-17-2008, 07:21 PM   #49
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Quote:
Originally Posted by compuatic View Post
This was also a suggestion made by Corky, This is what i'm using Scott, let me know your opinion...

if you look at FMs default map for a 1.6L turbo, you can see what I mean. This is the area I wanted to play with last weekend on the dyno....

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Old 07-18-2008, 03:50 PM   #50
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So i went and made changes to my timing map. see the before and after below and then look at the before and after spool improvement. In summary, nothing... any thoughts or theories?
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GT2554 spool is horrible-timingchange.jpg   GT2554 spool is horrible-boostchange.jpg  
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Old 07-18-2008, 05:12 PM   #51
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get an ebc.....
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Old 07-18-2008, 06:16 PM   #52
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Quote:
Originally Posted by y8s View Post
simple test:
1. set overboost cut to 15 psi
2. remove vacuum line from wastegate actuator and plug vac line.
3. log that bish.
Quote:
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get an ebc.....
if my test above (he says he did that) doesn't spool it any faster, an EBC wont do it either.
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Old 07-18-2008, 06:18 PM   #53
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true...do that test.
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Old 07-18-2008, 06:53 PM   #54
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I think the only thing to fix is this:

Quote:
hollow stock cat and 2.25" racing beat exhaust.
I have a similar exhaust and similar spool numbers. OP has an EBC already.
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Old 07-18-2008, 07:13 PM   #55
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but you also have a smaller engine.
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Old 07-18-2008, 09:12 PM   #56
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Quote:
Originally Posted by compuatic View Post
but you also have a smaller engine.
I think the exhaust is enough of a restriction. You'll probably see a larger gain than I will from a good exhaust setup.
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Old 07-18-2008, 09:26 PM   #57
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Sorry I'm late to this party. I'm running the SR20det T25, BegiSS dg downpipe, 2.5" test pipe, 2.25" Borlas. My spool looks exactly like yours comp.
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Old 07-18-2008, 09:56 PM   #58
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here's how sam's looks, compared to mine.

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Old 08-02-2008, 07:28 PM   #59
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The spoolup data in the above compilation is a 2nd gear pull. Here's the data with my 4th gear data added/
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GT2554 spool is horrible-spool.gif  
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Old 08-03-2008, 06:23 PM   #60
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Great thread! Here is another one to add. I just hooked up my EBC today and am still tuning it so there is some overshoot and oscillation. The target boost is about 7.5 psi. This is a 4th gear pull on a hot 102 deg F day.

Setup
GT2560
BEGI cast manifold
BEGI stainless DP
2.5" exhaust: hi-flow metallic cat, straight through resonator, straight through muffler, all magnaflow
MS open loop boost control
GM boost solenoid
RPM Boost (psi)
2136 0.44
2378 3.53
2521 4.56
2864 6.91
3091 8.53
3184 9.11
3445 7.2
3694 8.09
3989 7.35
4294 7.64
4472 8.09

Here is a chart. Paul's spool is, well, absurd. Sav's looks great. Looks like mine is pretty good. I need to get that new clutch in so I can turn up the boost. The stock clutch is slipping fo sho.
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GT2554 spool is horrible-boost-graph-2.jpg  

Last edited by ZX-Tex; 08-03-2008 at 07:07 PM.
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