Godspeed T25/28 vs Used Garrett Turbo from SR20 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 06-03-2011, 02:05 PM   #1
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Default Godspeed T25/28 vs Used Garrett Turbo from SR20

I know you shouldn't build a turbo setup around one peice. But I HAD a running turbo setup that used a fleabay T25/T28 that pretty much ******* exploded. My manifold and DP are good quality parts (BEGi Log Manifold and S downpipe). However, I need a new turbo. I can get a used Garrett for ~$250, or new Godspeed turbo for ~$275.

I don't want to hear people talking **** about the godspeed turbo, or what the **** ever. If you've never owned one...STFU & GTFO.

Guess the real question is, How does the Godspeed stack up against the Garrett. I searched (don't think I haven't) and have only found where people say the Godspeed turbo is good for the price. But has anyone ever started out with a Godspeed turbo then switched to a Garrett or vice versa?

If so,
Spool characteristics/differences between the two?
WG operation, did it hold advertised psi?
Durability, Mileage of Godspeed turbo vs Used Garrett?

Also; I've heard of rebuilding Chinachargers with REAL Garrett parts and it makes them pretty ******* awesome..Any truth to this?

Thanks for your responses in advance,

-Josh
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Old 06-03-2011, 02:09 PM   #2
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Had a godspeed 3076. loved it. new owner is enjoying it now and its still running like a champ. I don't think there are many here that have t25 godspeeds. Most have the 28/30. The results are really inconsistent, so I doubt you'll get ONE overwhelming answer here. Some have made REALLY good power, and some not so much.
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Old 06-03-2011, 02:12 PM   #3
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Pics for reference;

Original Ebay-China-Bullshit-DOESN'T-HIT-THE-MOTHERFUCKING-BLOCK; Manifold Cracked after 4 months:

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Bought the **** from BEGi to solve issue with cracked manifold; ran great for ~300 more miles then this happened;
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Discovered that the turbo was POURING oil into my exhaust; so this happened;
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Car never made boost again, I couldn't find a fitting for the turbo oil inlet. Car went back N/A and all turbo parts sit in a corner.

and the car sits like this now;
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Old 06-03-2011, 02:14 PM   #4
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Quote:
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Had a godspeed 3076. loved it. new owner is enjoying it now and its still running like a champ. I don't think there are many here that have t25 godspeeds. Most have the 28/30. The results are really inconsistent, so I doubt you'll get ONE overwhelming answer here. Some have made REALLY good power, and some not so much.

Does the 28/30 use the same DP bolt pattern and flange as the 25/28?
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Old 06-03-2011, 02:18 PM   #5
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The car mainly gets used for AutoX and driving to work once or twice a month. Because of the AutoX side of life the car enjoys I need something that spools pretty fast to ~8-10psi. Does the 28/30 spool fast enough that I wont be left holding my dick on corner exits praying for boost?
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Old 06-03-2011, 02:24 PM   #6
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How much power are you looking for? At 9psi from a sr20 2554 I made right under 200hp and 200ft/lbs of torque. It was almost a perfect an Autox setup. I would personally go with a genuine garrett if you are using the car for Autox.
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Old 06-03-2011, 02:26 PM   #7
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But is a USED Garrett better than a NEW Godspeed turbo?

I'm just scared to buy used **** I guess.
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Old 06-03-2011, 02:35 PM   #8
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I bought my sr20 2554 off a guy for $100 and put something like 20k on it, then sold it to another user on here. He has since sold it again and I think it is still in use. Just make sure the real garrett has no shaft play and you should be fine.
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Old 06-03-2011, 02:36 PM   #9
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I thought the OE turbo was a 2560R?
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Old 06-03-2011, 02:37 PM   #10
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Quote:
Originally Posted by shuiend View Post
I bought my sr20 2554 off a guy for $100 and put something like 20k on it, then sold it to another user on here. He has since sold it again and I think it is still in use. Just make sure the real garrett has no shaft play and you should be fine.
Thanks, will do. They are the same price, so i guess I'll go with the real McCoy.
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Old 06-03-2011, 02:38 PM   #11
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Quote:
Originally Posted by Weaver View Post
But is a USED Garrett better than a NEW Godspeed turbo?

I'm just scared to buy used **** I guess.
Yes, I would have to say it is better. I've driven a chinacharged car and it was not "Zomg! Uber slow spoool!" but the transition into boost was noticeably different. It was a T25 equivalent of my gt2554. I think it's more of a quality control issue than anything. Some are great, some are meh.

Don't be scared of used parts. Every part you put on your car instantly becomes a used item. I traded parts to get my used gt2554 and it's fine. Just know what you're looking for if you inspect it before you buy it.

EDIT: The SR20 T25 is also known as the T25G and it's a great turbo. I used to run one, before I ended up with the gt2554. They can be rebuilt for dirt ******* cheap (if ever needed)
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Old 06-03-2011, 02:43 PM   #12
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I agree: if you're going to beat on the car constantly (autox) I'd definitely go with a good condition authentic garrett or something else that's brand name.
And there's nothing wrong with a used turbo as long as its in good shape.

the godspeeds use a weird 5 bolt turbine outlet that's ALMOST like a regular t25 5 bolt but just a bit off, so you have to make your own dp or have a godspeed specific flange welded to it. At least that was the case with my 3076.

It was perfect for my driving style and I loved it, but I'd say a 30 would be quite a bit laggy for auto-x use.


Get a brand name 2560 or equivelant. I think it would be the perfect turbo for your goals.
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Old 06-03-2011, 02:52 PM   #13
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Quote:
Originally Posted by viperormiata View Post
Yes, I would have to say it is better. I've driven a chinacharged car and it was not "Zomg! Uber slow spoool!" but the transition into boost was noticeably different. It was a T25 equivalent of my gt2554. I think it's more of a quality control issue than anything. Some are great, some are meh.

Don't be scared of used parts. Every part you put on your car instantly becomes a used item. I traded parts to get my used gt2554 and it's fine. Just know what you're looking for if you inspect it before you buy it.

EDIT: The SR20 T25 is also known as the T25G and it's a great turbo. I used to run one, before I ended up with the gt2554. They can be rebuilt for dirt ******* cheap (if ever needed)
Journal vs BB will also effect spool.
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Old 06-03-2011, 02:54 PM   #14
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BB = $$$$$$$, and I only have $$$
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Old 06-03-2011, 02:55 PM   #15
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Found some T25Gs on Ebay, price range from 191 - 300, used. says they're in "good shape, with little or no shaft play and turbine spins freely"
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Old 06-03-2011, 03:01 PM   #16
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On small turbos like the t25's the bb vs jb spool difference really isn't that drastic IMHO.
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Old 06-03-2011, 03:19 PM   #17
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thats good to know, because i'm going with the JB to save meh greenbacks.

Vlad, what ecu/injectors/other mods are you running?
build page?
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Old 06-03-2011, 03:22 PM   #18
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diypnp, 1000cc, bunch of other stuff
Not running anymore tho, car is sold
my build thread is in the builds section.
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Old 06-03-2011, 03:28 PM   #19
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If you don't mind me asking why did you sell it?
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Old 06-03-2011, 03:33 PM   #20
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Sometime in the near (hopefully) future Im going to start on another one just like it but with more cylinders under the hood. No replacement for displacement.
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