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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 03-20-2009, 05:36 PM   #21
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Those are too much money to be experimenting with. Since you need to retune anyway, I'd go with a significantly larger turbo. Spool is overrated even if I say so myself, you dont need anything below 3500 rpm.

I agree with what hustler's trying to say below whilst speaking like a man.......We need to clearly delineate spool from lag. i'm starting a thread when i feel like it.
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Old 03-20-2009, 05:42 PM   #22
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Quote:
Originally Posted by sixshooter View Post
A 2500rpm usable range is all you need if your upshifts drop you no more than 2500rpm, technically speaking. Usefulness to a particular person is, of course, subjective.
spoken like a true track virgin.
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Old 03-20-2009, 05:44 PM   #23
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to be perfectly honest, I have to agree. I'd much rather have a strong topend than fast spool. then again, some people in here like to be full boost by 3k so...I'm not a track junkie though
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Old 03-20-2009, 05:46 PM   #24
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Quote:
Originally Posted by hustler View Post
spoken like a true track virgin.
Spoken by someone with a 2500rpm full boosted range.
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Old 03-20-2009, 05:53 PM   #25
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[QUOTE=Newbsauce;384674 I do wish I'd have tried a 2860 though, as those seem like the ideal sizing.[/QUOTE]

HaHa thats what I dropping on mine
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Old 03-20-2009, 05:56 PM   #26
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Quote:
Originally Posted by 18psi View Post
to be perfectly honest, I have to agree. I'd much rather have a strong topend than fast spool. then again, some people in here like to be full boost by 3k so...I'm not a track junkie though
You dont have to be a track junkie to appreciate fast spool. I like to have a larger useable powerband, even if it hurts the HP numbers.
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Old 03-20-2009, 06:11 PM   #27
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im using an sr20 t28 ebay special, but to unforeseen circumstances, its currently loaded with garrett big t28 internals. spool is slow, but dayum, theres plenty of top end pull. i think im around 10psi on stock internals. finally got it running right, now my clutch is dying. so no dyno yet.
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Old 03-20-2009, 06:12 PM   #28
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Someone forgot to tell my turbo that it's supposed to "fall off" on the top end.

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Old 03-20-2009, 06:16 PM   #29
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I plan on getting my gt2860rs tune cleaned up soon...like this may.
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Old 03-20-2009, 06:18 PM   #30
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Quote:
Originally Posted by Savington View Post
Someone forgot to tell my turbo that it's supposed to "fall off" on the top end.

too bad it makes no torque...lol.
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Old 03-20-2009, 08:20 PM   #31
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Quote:
Originally Posted by Saml01 View Post
Artie. 275hp 250 torque I think with a regular 99 intake manifold.
so where is the other 25 hp and 20 tq?


If i were to do it again, i would have gone with a a 2871, or at least a 99 head with an intake mani+ absurd flow exhaust mani.
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Old 03-20-2009, 08:40 PM   #32
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Looks like the 2860 with the smaller A/R is where I want to be. Now the question is would you buy this ebay special or go for the $800-900 name brand one?

eBay Motors: Drift T28 GT2860 S13 S14 Upgrade Turbo Charger .49 AR (item 120392174832 end time Mar-21-09 19:58:51 PDT)
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Old 03-20-2009, 10:42 PM   #33
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Quote:
Originally Posted by thesnowboarder View Post
Who other than paul? who has an absurd flow exhaust mani and a begi intake mani strapped to his high flowing 99 motor?

Tell me please, because my 2560 isnt making anything near that kind of power.

I would be the other person running absurdflow exhaust manifold, downpipe, and exhaust. Im making 275rwhp and 263 torque at 15psi. Full boost by like 3200 or 3400. I forget the actual number and am too lazy to look it up right about now. The difference between my setup and Paul's is that hes running a 99 block while im running a 95 (different compression). He also has a Begi intake manifold with a 70mm mustang TB while I am running a gutted 99 intake manfold with stock TB (still gave me 11 hp and 1 tq). His intercooler setup is also a lot nicer than mine and shorter.

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Old 03-21-2009, 05:22 PM   #34
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Need your opinion fellas. Want to but something asap. Would you try the ebay special for $300 or spend the extra $600?

Garrett GT28R Turbo - Garrett GT Series Dual Ball Bearing Turbo Charger
Garrett GT2860R
Turbine -Wheel: 53mm w/ 62 trim -Housing: .64 ar
Compressor -Wheel: 60mm w/ 60 trim -Housing: .60 ar



eBay Motors: Drift T28 GT2860 S13 S14 Upgrade Turbo Charger .49 AR (item 120392174832 end time Mar-21-09 19:58:51 PDT)
Drift T28 GT2860
Compressor Wheel
0.60 A/R Cold Side
Ind: 42.50 mm
Exd: 60 mm
Trim: 50

Turbiner Wheel
.49 A/R
Garrett 4 Bolt T25 Flange
Ind: 52.90 mm
Exd: 45.47 mm
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Old 03-22-2009, 12:51 AM   #35
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Old 03-22-2009, 02:01 AM   #36
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Quote:
Originally Posted by ArtieParty View Post
I would be the other person running absurdflow exhaust manifold, downpipe, and exhaust. Im making 275rwhp and 263 torque at 15psi. Full boost by like 3200 or 3400. I forget the actual number and am too lazy to look it up right about now. The difference between my setup and Paul's is that hes running a 99 block while im running a 95 (different compression). He also has a Begi intake manifold with a 70mm mustang TB while I am running a gutted 99 intake manfold with stock TB (still gave me 11 hp and 1 tq). His intercooler setup is also a lot nicer than mine and shorter.

[IMG]http://www.miatamx5.com/dynoruns/11-15-08/artie_vs_artie.jpg[/I]
Probably a dumb question, but why does your torque curve fall so quickly?

---------

Phil, try the ebay sepcial. Worst comes to worst you sell the turbo for half of what you paid and you gain experience that you can share with the rest of us. If I was in your shoes I would do just that.
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Old 03-22-2009, 09:58 AM   #37
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Quote:
Originally Posted by levnubhin View Post
Bump
IDK, brother. The pics didn't show much detail in the ads, either. I was looking for casting quality as an indicator (possibly a poor indicator), but that's hard to tell from those little pics.

Without a name brand or reputation, you are just rolling the dice with either one. Pick one. Your call. I don't know, but is that one a real Garrett? Hard to believe the price.
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Old 03-22-2009, 12:21 PM   #38
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Quote:
Originally Posted by Saml01 View Post
Probably a dumb question, but why does your torque curve fall so quickly?

---------
Because of the restrictive(even after gutting) factory intake manifold. Here is the same setup but with a better flowing intake mani(red line). Artie's is the green line.

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Old 03-22-2009, 12:55 PM   #39
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Dang, that IM made a huge difference.
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Old 03-22-2009, 12:58 PM   #40
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Quote:
Originally Posted by levnubhin View Post
Need your opinion fellas. Want to but something asap. Would you try the ebay special for $300 or spend the extra $600?
Do this. Garrett OE quality. A Garrett guy looked at this and told me it's the same thing they call a GT2560. Couldn't understand how these guys are selling so cheap, unless Ghosn just said, "Get all the NOS parts off the books."

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