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Old 11-02-2006, 01:28 AM   #1
tearitdown9
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Default Spooling Characteristics of the "20gs"

I am trying to get a feel for which 20g spools where and what kind of power is produced. i have read so much and heard so many good things("ultimate street setup") it seems that an external setup is the way to go.

-my thoughts on setup. suggestions welcome:
spearco topmount intercooler
fueling(pump and injectors)
some type of header with EWG
20g in one form or another

-my goals:
to have added power over the vf39 but more power than a 18g.
to spool as early as possible.
the car will be used for AutoX(60%), HPDEs(39%), and will probably see a dragstrip(1%) once or twice.

what have you guys seen for spool trends for all the 20gs of all variations(td05 vs td06 vs 8cm FP vs deadbolt vs EWG vs IWG)?
i have had trouble finding info in the same thread to compare results.
-jon
ps any other similiar turbo suggestion are welcome.
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Old 11-02-2006, 02:11 AM   #2
WrxRick
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you may want to check out www.blouchturbo.com
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Old 11-02-2006, 07:44 AM   #3
RP31
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Here are two threads with a decent amount of info to get you started:

http://forums.nasioc.com/forums/show...=20g+boost+RPM
http://forums.nasioc.com/forums/show...=20g+boost+RPM
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Old 11-02-2006, 09:06 AM   #4
xfactor23
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I have a blouch 20g and I cna say It spool just like a vf39....
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Old 11-02-2006, 11:21 AM   #5
tearitdown9
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good info. thanks
keep it coming!
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Old 11-02-2006, 11:37 AM   #6
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is it required to get an inlet hose and MAF if you just want to bolt on the 20g?

Blouch turbos are nice!!
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Old 11-02-2006, 11:39 AM   #7
RP31
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^^^
No it is not required.
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Old 11-02-2006, 11:49 AM   #8
billg
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The TD05 will definitely outspool the TD06, but you'll give up top end and about 40-50whp.
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Old 11-02-2006, 12:27 PM   #9
Capt Crunch
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Get an 8cm and skip the EWG.
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Old 11-02-2006, 05:03 PM   #10
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are you saying the EWG would be a waste of money??^^^
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Old 11-02-2006, 05:06 PM   #11
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Quote:
Originally Posted by tearitdown9 View Post
are you saying the EWG would be a waste of money??^^^
....8cm td05-20g should do REAL nice----
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Old 11-02-2006, 05:10 PM   #12
wrxwhat
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Ive seen many cases where a TD06 spools just as fast as a VF39
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Old 11-02-2006, 05:10 PM   #13
tearitdown9
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Quote:
Originally Posted by billg View Post
The TD05 will definitely outspool the TD06, but you'll give up top end and about 40-50whp.
really?
my car now 310whp
from what i have seen 350whp is about avg for a TMIC 20g.
are you saying a td05=350whp and tdo6 390whp?
or td05=35and td06=350whp?
if so, what is the pt. of the td05 upgrade?
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Old 11-02-2006, 05:59 PM   #14
Capt Crunch
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Quote:
Originally Posted by tearitdown9 View Post
are you saying the EWG would be a waste of money??^^^
For the price of a fancy-pants 20G and EWG you're damn close to getting a rotated turbo setup.

Clark claims that with the 8cm turbos you get the same performance as the 7cm turbos with EWG.
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Old 11-02-2006, 06:05 PM   #15
EMS
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Quote:
The TD05 will definitely outspool the TD06, but you'll give up top end and about 40-50whp.
On pump gas the difference is MUCH smaller!

Quote:
Ive seen many cases where a TD06 spools just as fast as a VF39
Badly tuned VF39 against perfectly tuned TD06? There is a massive difference in spool-up and response! Did you drive both setups???

Quote:
....8cm td05-20g should do REAL nice----
Would also be my choice. If you want a bit more top-end power and sacrifice spool-up go for a 8cm TD06H-20G. (but in my opinion the TD06H turbine with 8cm housing works better with a bit bigger compressor)

Mark.
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Old 11-02-2006, 06:28 PM   #16
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I have a td06-20G with a clipped wheel and ported turbine housing and it does NOT spool as quickly as my VF39. The clipped wheel produces less resistance and lets the gases exit the turbine housing without producing as much thrust on the wheel. I have peak torque (peak boost) at 3900 RPM. From what I have seen, the VF39 graphs are around 35-3600. From feel, the 20G hits a little bit harder than the VF39, but it is able to sustain the power longer. It still falls off up top, but has a very hearty midrange. I chose it because my VF39 was toast, and I wanted a suitable replacement. I did not choose it to be a "big turbo" and I make that same recommendation to others!
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Old 11-02-2006, 06:52 PM   #17
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Quote:
Originally Posted by Capt Crunch View Post
For the price of a fancy-pants 20G and EWG you're damn close to getting a rotated turbo setup.

Clark claims that with the 8cm turbos you get the same performance as the 7cm turbos with EWG.
yeah, it really adds up quick
i have ruled out a rotated kit bc i want to retain an early spool time.
for me its really not about the cost of the setup but an upgrade that produces a descent amount of power that doesnt spool at 4500rpms.

jon
ps would any sz49 people care to chime in?
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Old 11-02-2006, 07:37 PM   #18
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Quote:
Originally Posted by wrxwhat View Post
Ive seen many cases where a TD06 spools just as fast as a VF39
Quantify your statement. My VF39 spools at 2600 RPM. I'd bet the 20G spools about a thousand RPM later.

This whole thread, and most like it, is full of rubbish. All conjecture and opinion, no data. Someone ought to put together a thread where the only input allowed is datalogging. Get a OBD2 cable and laptop, go out on the road and record what you got. Post that along with the exact turbo configuration so we can see what reality is.
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Old 11-02-2006, 08:19 PM   #19
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Quote:
Originally Posted by tearitdown9 View Post
are you saying the EWG would be a waste of money??^^^
EWG setups are always better than IWG setups, the only downside to EWG setup is cost and noise. The EWG will give you pin point boost accuracy, sooner spool, slightly better top end due to the fact that the turbo hotside inlet doesn't have to accommodate the IWG gas and gas used to spool the turbo. better exhaust flow if you get a dumped EWG since the gas isn't going all the way through your exhaust, it's being dumped before the turbo.

it really depends on what you want, if cost isn't an option and you don't mind the sound of the dump i would go EWG. I have it and have no regrets.
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Old 11-02-2006, 09:15 PM   #20
Paintballguy
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I hit 20 psi of boost by 3k rpms... It would be a bad little turbo with the 8cm^2 hotside.

I'm ditching mine for a 30r though.
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Old 11-02-2006, 10:06 PM   #21
tearitdown9
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i really dont mind the sound and i would rather spend the extra money to do it right.
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Old 11-03-2006, 02:35 AM   #22
xfactor23
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Quote:
Originally Posted by Rootus View Post
Quantify your statement. My VF39 spools at 2600 RPM. I'd bet the 20G spools about a thousand RPM later.

This whole thread, and most like it, is full of rubbish. All conjecture and opinion, no data. Someone ought to put together a thread where the only input allowed is datalogging. Get a OBD2 cable and laptop, go out on the road and record what you got. Post that along with the exact turbo configuration so we can see what reality is.


chew on this .... thats about 3200-3300 rpms ...
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Old 11-03-2006, 05:49 AM   #23
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I have a tuned deadbolt td06h(clipped)-20g with an EWG and perrin headers. It was tuned on 91 octane with the stock intake system and 3" exhaust all the way to my stock STI axleback.

It put down 300awhp & 330awtq on a heartbreaker mustang dyno.

I have since put on a cobb intake and started running 93 octane. I see 20psi of boost on my AVCR by 3500rpm in most gears. I have my watsegate shut completely in first and second gear, which makes WOT runs in those gears very stealthy.

For me its the perfect turbo. Spool feels like a stock STI, not stg2...but the torque hits hard real quick. I have been able to hit 23psi in 2nd gear on 93 octane The best part is my setup was cheap, I got almost all my parts used...and they all work great.

good luck
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Old 11-03-2006, 08:41 AM   #24
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Quote:
Originally Posted by xfactor23 View Post
chew on this .... thats about 3200-3300 rpms ...
Chew on this. That is a dyno. You cannot measure spool on a dyno.
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Old 11-03-2006, 08:48 AM   #25
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Still no "real" spool data.
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