Greddy Turbo kit - Subaru Enthusiasts Car Club of the Sierras

Charlie · 2010-09-14, 02:42 PM

Sorry if I'm posting this in the wrong spot but it seemed like it made some sense. Basically I was looking at getting a used greddy TD06-25g turbo kit. I've done some research but was wondering if any one has comments about it good or bad. Just trying to get some feedback if people know anything about it. Someone is selling it on i-club. Thanks for any help.

sperry · 2010-09-14, 02:53 PM

I'm not aware at the specs on the Greddy kit. I just know that a 25G turbo sounds kinda too big for a 2.0L. The TD06-20G is a really popular turbo for the 2.5 STi motor... so going bigger on a smaller motor sounds super laggy.

I would think a TD05-18G would be a better match for the 2.0L.

SpamMan · 2010-09-14, 03:36 PM

+1 I will have to agree on that... The best for a 2.0L would be a 16g.. a 18g is pushing it.. you will need all supporting mods for the turbo swap and a good tune.. Oh yah maybe a upgraded tranny too..

Charlie · 2010-09-14, 06:06 PM

Okay thanks. That sounds like it's a pretty bad choice for me then. I really appreciate the help.

WRX06TR · 2010-09-14, 08:17 PM

You can check out Blouch too

...I was going to post their link for you but they seem to be redesigning the website...

IheartSTI · 2010-09-16, 11:10 AM

I like how people say "its to big". To big for what? to big for autocross yes. To big for road course maybe(probably would be fine on a 2.0). To big for drag no. For trap speeds on an 18g turbo on sti up at this altitude its 114/116mph at best which for most drivers is a mid to low 12 second pass. I personally think that is not that impressive of a trap speed. For an 11 second 1/4 daily driven sti you would need a minimum of a 20g and that would would be pushing it assuming you had all the supporting mods. If you like going fast down sell your self short on to small of a turbo because it will just lead you to have to buy a knew one. a 25g turbo can be put on a 2.0 wrx and make decent power on a tune that is going to be safe.

sperry · 2010-09-16, 12:23 PM

Quote:

Originally Posted by IheartSTI

I like how people say "its to big". To big for what? to big for autocross yes. To big for road course maybe(probably would be fine on a 2.0). To big for drag no. For trap speeds on an 18g turbo on sti up at this altitude its 114/116mph at best which for most drivers is a mid to low 12 second pass. I personally think that is not that impressive of a trap speed. For an 11 second 1/4 daily driven sti you would need a minimum of a 20g and that would would be pushing it assuming you had all the supporting mods. If you like going fast down sell your self short on to small of a turbo because it will just lead you to have to buy a knew one. a 25g turbo can be put on a 2.0 wrx and make decent power on a tune that is going to be safe.

Just to clarify what you're saying: If you like having a car that's fast at the drag strip because it makes a crapload of power only between 6000 and 7000 rpm, feel free to get a 25G turbo for a 2.0L. The rest of the time, you're basically driving an 8.5:1 compression 2.0L N/A motor. 100 ftlbs or less below 4500 rpm means having a slow-ass car for 90% of its use. Making huge peak horsepower is good for the strip and for showing off your dyno graph, but under real world driving conditions, it's the area under the curve that makes a car fun.

Since most people like having a car with a wide power band, early spool, and gobs of bottom-end torque, and since it's much more fun to drive and faster everywhere but the drag strip, 99% of people will say a 25G is "too big" for a 2.0L WRX.

IheartSTI · 2010-09-17, 04:54 AM

basically yes. I do not disagree. For all we know this guy only cares about going fast in a straight line though.

knucklesplitter · 2010-09-18, 08:23 AM

Back before all the big stock-location turbos came out, and before all the Garrett-based rotated kits, that Greddy kit was just about the biggest thing you could get for a WRX. I agree with most that it is too much turbo for a street 2.0L with a 7k rev. limit. I don't know if it would even spool by 5k rpm up here at altitude.

2010-09-14, 02:42 PM	#1
Charlie n00b Real Name: Charlie Join Date: Jul 2010 Location: Sacramento Posts: 7 Car: 2002, Subaru, WRX wagon Class: D stock	Greddy Turbo kit Sorry if I'm posting this in the wrong spot but it seemed like it made some sense. Basically I was looking at getting a used greddy TD06-25g turbo kit. I've done some research but was wondering if any one has comments about it good or bad. Just trying to get some feedback if people know anything about it. Someone is selling it on i-club. Thanks for any help.

2010-09-14, 02:53 PM	#2
sperry The Doink Real Name: Scott Join Date: Nov 2002 Location: Portland, OR Posts: 20,335 Car: '09 OBXT, '02 WRX, '96 Miata Class: PDX/TT-6 The way out is through	I'm not aware at the specs on the Greddy kit. I just know that a 25G turbo sounds kinda too big for a 2.0L. The TD06-20G is a really popular turbo for the 2.5 STi motor... so going bigger on a smaller motor sounds super laggy. I would think a TD05-18G would be a better match for the 2.0L. __________________ Is you is, or is you ain't, my con-stit-u-ints?

2010-09-16, 11:10 AM	#6
IheartSTI EJ22 Join Date: Jun 2004 Location: Reno soon.... Posts: 473 Car: 05 sti and 08 honda fit have fun	I like how people say "its to big". To big for what? to big for autocross yes. To big for road course maybe(probably would be fine on a 2.0). To big for drag no. For trap speeds on an 18g turbo on sti up at this altitude its 114/116mph at best which for most drivers is a mid to low 12 second pass. I personally think that is not that impressive of a trap speed. For an 11 second 1/4 daily driven sti you would need a minimum of a 20g and that would would be pushing it assuming you had all the supporting mods. If you like going fast down sell your self short on to small of a turbo because it will just lead you to have to buy a knew one. a 25g turbo can be put on a 2.0 wrx and make decent power on a tune that is going to be safe. __________________ live one day at a time

2010-09-17, 04:54 AM	#8
IheartSTI EJ22 Join Date: Jun 2004 Location: Reno soon.... Posts: 473 Car: 05 sti and 08 honda fit have fun	basically yes. I do not disagree. For all we know this guy only cares about going fast in a straight line though. __________________ live one day at a time

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2010-09-14, 03:36 PM	#3
SpamMan EJ22 Real Name: Tommy Join Date: Apr 2009 Location: Carson City, NV Posts: 128 Car: 05 STi\|04 WRX\|05 Legacy GT Limited Salty Meat For Your Mouth	+1 I will have to agree on that... The best for a 2.0L would be a 16g.. a 18g is pushing it.. you will need all supporting mods for the turbo swap and a good tune.. Oh yah maybe a upgraded tranny too..

2010-09-14, 06:06 PM	#4
Charlie n00b Real Name: Charlie Join Date: Jul 2010 Location: Sacramento Posts: 7 Car: 2002, Subaru, WRX wagon Class: D stock	Okay thanks. That sounds like it's a pretty bad choice for me then. I really appreciate the help.

2010-09-14, 08:17 PM	#5
WRX06TR EJ251 Real Name: Nick P Join Date: Dec 2006 Location: Reno Posts: 881 Car: 2005 STi Class: MadtyteTunerBro! Back to the studio!	You can check out Blouch too ...I was going to post their link for you but they seem to be redesigning the website...

2010-09-18, 08:23 AM	#9
knucklesplitter EJ205 Real Name: Matt Taylor Join Date: Jun 2005 Location: Cousin-Fck, Carolina Posts: 1,474 Wish in one hand and sht in the other...	Back before all the big stock-location turbos came out, and before all the Garrett-based rotated kits, that Greddy kit was just about the biggest thing you could get for a WRX. I agree with most that it is too much turbo for a street 2.0L with a 7k rev. limit. I don't know if it would even spool by 5k rpm up here at altitude.