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06-19-2007, 01:28 PM | #1 |
got the turbo PICS NOW>
ok i'm just gonna start over since some of the info from earlier was wrong.
ok, i have 2 used turbos to use on my '07 LB, one is a '99 VW Jetta K03 turbo, wastegated internally at 5psi. the second is a Garrett GT2056 wastegated internally at 7psi. both are used as stated above, the k03 has 80k miles on it so a rebuild will be necessary if i decide to use it. the gt2056 has 4k miles of use and is in perfect condition, therefor i'm going to be using the Garrett turbo for my setup. just gotta keep putting the pieces together, but first i need to get a spare engine. Heres a couple of pics of the turbos so you guys can see the difference between the 2. heres the info from Garrett, regarding the GT2056. GT2056 these are pics of the K03. Last edited by joey1320; 06-19-2007 at 05:38 PM. |
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06-19-2007, 01:41 PM | #2 |
Lurker supreme!
Drives: old and boosted! Join Date: Nov 2006
Location: Ottawa, ON, Canada
Posts: 792
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First off, I'm a turbo n00b... I only know what I've read and researched online. That being said, I have a feeling the GT25 will be too big. I've been looking into either a GT20 or GT17-sized turbo for the Yaris. Since our engines are only 1.5L, and redline @ 6,300-6,500 RPM, they can't flow too much air. The length of time needed to spool a GT25 up would mean it wouldn't be very streetable... i.e. slow response. Also, I think with this size of compressor, you'd possibly be operating near surge at lower RPM.
Anyhow... I don't know about the K03. I'll have to read about that. But ya, if you can find the compression map or specs for either or both of the turbos, some of the more experienced members here would be able to give you some solid advice!
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2006 Red Blitzed RS 5-door |
10-28-2008, 08:54 PM | #3 | |
Start another Oil Thread!
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06-19-2007, 01:58 PM | #4 |
Drives: NST CARS: S13 AE86 ANT10 AW11 Join Date: Dec 2006
Location: USA
Posts: 1,097
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Sounds like an interesting project Joey. Might I suggest looking for a Toyota CT9 or CT12 turbo. I have had personal experience with these on a 1.5 Toyota in the past and the response was excellent. The turbos are also very small and very easy to fit into the engine bay. Just a thought.
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06-19-2007, 03:47 PM | #5 | |
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thanks for info! |
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06-19-2007, 08:15 PM | #6 |
Drives: Camry LE/Yaris Hatch 5spd Join Date: Jul 2006
Location: PA--->MD<---WV
Posts: 77
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I guess your looking for a complete build. For me if I decide to boost my motor I would use the ct26 or ct27 that were used in the older supras, mr2, or celica all trac. Good for about 16lbs of boost. Spikes around 18lbs or so. But I guess you found the turbos you wanted, which is a good thing... How much boost are u looking for?? Good luck with your project...
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06-19-2007, 02:37 PM | #7 |
Down With the Sickness
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would there be another option for turbo in the future?
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06-19-2007, 08:23 PM | #8 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Joey, couldn't you just ebay your Garrett Turbo , for one of the Toyota turbo's NST has used on 1.5's b4 with positive results? just a though
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06-19-2007, 08:49 PM | #9 | |
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i could but if you look at the Garrett webpage they consider the GT2056 appropiate for engines with 1.4L-2.0L of displacement. The good thing is that if i use the Garrett and for whatever the reason i don't like the way it spools or reacts to the build i can replace it with the smaller K03 which is a straight swap for the manifold. so in other words i can have 2 turbos for the same manifold with difference results. both were free and all i'll have to do is get the rebuild kit for the k03 which is about $65 from ebay. what do you think? |
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06-19-2007, 09:19 PM | #10 |
Drives: 07 Join Date: May 2007
Location: home
Posts: 236
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Forget the K03, it will net small gains. Too much fab and tuning for a lil gain when you have a better candidate waiting :)
A GT25 would be nice, or even the GT28R :D |
06-19-2007, 11:01 PM | #11 |
Drives: Yaris 3 Door, 04 WRX, 69 Lotus Join Date: Apr 2007
Location: norcal
Posts: 128
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IMHO, even the GT2056 is too small.
I assume your gonna build the engine, so I figure 1 bar of boost, with a 1psi pressure drop. So thats a PR of 2.07 and a corrected mass flow of 20.13. That drops you out of the maximum efficiency. Running a GT2252 however would be perfect, that drops you right in the maximum efficiency island. On a Yaris, to run a GT2056, you want to run ~9psi. Any lower than that and you rapidly drop off into crappy efficiency. |
06-19-2007, 11:31 PM | #12 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Yeah... so I do not know anything about boost.... so I am going to shut up now
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06-19-2007, 11:42 PM | #13 | |
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IMHO, even the GT2056 is too small. I assume your gonna build the engine, so I figure 1 bar of boost, with a 1psi pressure drop. So thats a PR of 2.07 and a corrected mass flow of 20.13. That drops you out of the maximum efficiency. Running a GT2252 however would be perfect, that drops you right in the maximum efficiency island. On a Yaris, to run a GT2056, you want to run ~9psi. Any lower than that and you rapidly drop off into crappy efficiency. my plan is to get 150 whp which i think will make for a great daily driver. yes i can push it past 200whp and what not but i want a reliable car. one that once is put together i'll only have to do the regular oil changes and maintenance. so with the GT2056 being internally wastegated at 7psi, you think is not gonna be an efficient turbo? the engine is gonna get a simple build. rods, pistons, new headbolts(hopefully arp) and emanage. the bore will be the same 75mm and the compression rario should be at 9.5:1. i plan on getting a different intake manifold and may a tC TB like "turboyaris" has. but thats all. the head/drivetrain will be stock. |
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06-19-2007, 11:45 PM | #14 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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So.... Joey, You build a turbo setup that is a clean install, I will so drive my happy lil ass out there to run the same set up for what for what ever fair price you come up with
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06-19-2007, 11:52 PM | #15 | |
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thats the plan. a simple, clean, reliable turbo engine. not 30939484995 horsepowers to the wheels on a front wheel drive. what for??? thats what happened to my friend who i got these turbos from. he has a '99 Jetta and wanted BOOOOSSSSSTTTT. so after replacing the stock turbo(k03) with the Garrett he was still not happy. Even tough he was boosting 19psi. so he got a humongous Garrett turbo with 27psi of boost. he build the engine, spending almost $8grand on it. took it to the dyno, made 461whp, drove the car less than 2 weeks and one of the intake valves exploded. so now he needs a new engine, turbo and all the miscellanious stuff... why do peoplw do that, i don't know. i guess ego... |
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06-19-2007, 11:46 PM | #16 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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I am sure there is another Ohio boy that may be interested in this as well
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06-20-2007, 02:27 AM | #17 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
Location: Canoga Park, CA
Posts: 14,859
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external wastegate would be more controllable, just a thought
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06-20-2007, 08:59 AM | #18 |
46 and 2, just ahead...
Drives: 07 Yaris sedan Join Date: Jun 2007
Location: Johnstown, PA
Posts: 533
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Once one of you guys get a setup like this up and running, Ohio is just a short day drive for me, I'd love to see it/replicate it. Keep us posted please...
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