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Old 01-12-2022, 08:26 PM   #1
ChaudMasterFlex
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Default Turbo recommendation?

Could someone recommend a turbo upgrade? I’ve spent some time trying to do my homework, but I’m still not sure what to get. Goal is 400-450hp. I’ve seen the Blouch’s, but there are a few variations. I’m just gonna copy and paste my setup from an old Craigslist add;

IAG stage 2 (tuff) short block
ARP head bolts
STI 12mm oil pump
Torque Solution pitch mount
Invidia catback exhaust
Tomei UEL(wrapped) header and up-pipe
Grimmspeed catted downpipe
Go Fast Bits hybrid BOV
KStech phenolic spacers
Cusco pulley kit
Kartboy short shifter and bushings
Cobb Accessport V3
Cosworth intake
ACT clutch
Process West Verticooler TMIC
Whiteline tie rods and ball joints
Godspeed lowering springs
Killer B high flow water pump housing
Perrin intake tube
1000cc injectors
AEM fuel pump
Killer B windage tray
Killer B pick up tube
STI oil pan
Defi boost gauge
AEM X-series wideband gauge
Steamspeed turbo blanket
GetADomTune coolant bypass mod
Autometer oil pressure gauge
Cobb boost solenoid
IAG AOS
SMY gauge pod
JCS custom a-pillar pod
Mirimoto LED headlight kit
Mirimoto LED fog lights
IAG TGV delete
Air pump delete
255/40R17 Nitto NT05 tires

Last edited by ChaudMasterFlex; 01-13-2022 at 10:03 PM.
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Old 01-12-2022, 10:09 PM   #2
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You'll probably want to do some fuel upgrades to get to that range, ID1300s should be okay, idk what LPH fuel pump you have from AEM but it might be good, find a tuner and let them know your goals, they will be more than happy to discuss what will fit into what you want, personally a FP Black is a nice way to go if you want to stick with 93 and a highly boosted GTX3076 would work too but for something like e85, it's hard to say just off the list given, a tuner would be able to point you in the right direction more effectively
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Old 01-12-2022, 10:28 PM   #3
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I would go rotated if you can. It will offer you many benefits. Ease of maintenance, spool, power, etc.

EFR 7163 is my fave rotated turbo for your power goal.

If you're staying pump gas the FP black should get you to 450WHP but at 450 you should probably be rotated. The FP red is also good, as is the 3.5XTR. The Blouch XTR turbos are ball bearing and the FPs come in journal or ball bearing. The FP blue will probably only hit your power goal on ethanol or maybe 93, but probably 400 would be your pump limit on a blue.

The BCP 500+ is journal bearing, but makes great numbers with good spool and response for its size and technology.

The GrimmSpeed BB500 just came out, and is very similar to the 3.0XTR in specs but has very little results with it posted yet.

There are lots of options - choose wisely.

And I like the 3071 more than he 3076 if you go with a GT30.

Last edited by K3rm1tth3fr0g; 01-13-2022 at 02:38 AM.
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Old 01-13-2022, 06:59 AM   #4
ChaudMasterFlex
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Quote:
Originally Posted by K3rm1tth3fr0g View Post
I would go rotated if you can. It will offer you many benefits. Ease of maintenance, spool, power, etc.

EFR 7163 is my fave rotated turbo for your power goal.

If you're staying pump gas the FP black should get you to 450WHP but at 450 you should probably be rotated. The FP red is also good, as is the 3.5XTR. The Blouch XTR turbos are ball bearing and the FPs come in journal or ball bearing. The FP blue will probably only hit your power goal on ethanol or maybe 93, but probably 400 would be your pump limit on a blue.

The BCP 500+ is journal bearing, but makes great numbers with good spool and response for its size and technology.

The GrimmSpeed BB500 just came out, and is very similar to the 3.0XTR in specs but has very little results with it posted yet.

There are lots of options - choose wisely.

And I like the 3071 more than he 3076 if you go with a GT30.
Yeah, I saw the Grimmspeed turbo’s but I would like to give them some time to see what people think of them.
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Old 01-13-2022, 12:26 PM   #5
cboggess
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Quote:
Originally Posted by K3rm1tth3fr0g View Post
I would go rotated if you can. It will offer you many benefits. Ease of maintenance, spool, power, etc.

EFR 7163 is my fave rotated turbo for your power goal.

If you're staying pump gas the FP black should get you to 450WHP but at 450 you should probably be rotated. The FP red is also good, as is the 3.5XTR. The Blouch XTR turbos are ball bearing and the FPs come in journal or ball bearing. The FP blue will probably only hit your power goal on ethanol or maybe 93, but probably 400 would be your pump limit on a blue.

The BCP 500+ is journal bearing, but makes great numbers with good spool and response for its size and technology.

The GrimmSpeed BB500 just came out, and is very similar to the 3.0XTR in specs but has very little results with it posted yet.

There are lots of options - choose wisely.

And I like the 3071 more than he 3076 if you go with a GT30.
I cannot recommend the FP products due the number of issues we've seen with them along with the rather lackluster support we had to deal with.

I can recommend the BCP X500+. We've done a number of them here, and have been happy with them.
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Old 01-13-2022, 12:14 AM   #6
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If you don’t care about spool, FP black will do you well. But it has its drawbacks, figment and pressure ratios to name a few, they’re not my favourite if I’m honest. But I would second moving to a rotated setup if you have the cash for that. The EFR’s are nice turbos, just don’t overspin them. I’ve also been really impressed with the G Series. A G25 660 would get you to your power goals and retain very good spool and street manners.
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Old 01-14-2022, 03:22 PM   #7
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Quote:
Originally Posted by JSR84 View Post
A G25 660 would get you to your power goals and retain very good spool and street manners.
No it won't
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Old 01-14-2022, 07:38 PM   #8
K3rm1tth3fr0g
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Quote:
Originally Posted by Thorium06 View Post
No it won't

I mean it's a pretty good turbo but a 550 would spool better and make enough power for OP. Problem is getting a turbo kit for a G series for the WRX/STi but I don't know which gen chassis OP is using.
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Old 01-14-2022, 10:07 PM   #9
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Originally Posted by Thorium06 View Post
No it won't
Wrong
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Old 01-15-2022, 03:23 AM   #10
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Wrong
Wrong
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Old 01-15-2022, 10:23 AM   #11
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Quote:
Originally Posted by JSR84 View Post
Wrong
Wrong.
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Old 01-13-2022, 06:57 AM   #12
ChaudMasterFlex
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I guess I should have mentioned I'm looking for something plug and play at this point. I don't drive this car much (5000 miles since I bought it in 2017) so I'd like to stay under $2000 for a turbo. I kinda figured I should get a fuel kit first (ie; rails, fpr etc). Im staying away from E85 because there’s absolutely no where to get it where I live.

Last edited by ChaudMasterFlex; 01-13-2022 at 02:21 PM.
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Old 01-13-2022, 07:13 AM   #13
FuJi K
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No E85.... that means larger turbo to hit your goals on pump gas. A simple rotated GT3582R on like 26psi will easily get you over 400whp and spool up faster than a stock location FPBlack. The largest stock location I'd go is like a FPGreen/PTE 55mm stock location upgrade. Anything after that I'd go rotated. You should up your injectors. You can keep your stock rails, but up the fuel press regulator to help your fuel pump. Get rid of that GFB BOV if it's leaking. You may need to convert to FMIC.

if you want 400whp, shoot for 450.
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Old 01-13-2022, 03:01 PM   #14
benflynn
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Def want E85 if it’s available.
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Old 01-14-2022, 08:51 AM   #15
ChaudMasterFlex
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Quote:
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Def want E85 if it’s available.
I wish. Closest place is almost 200 miles away. Sucks because I live in a densely populated area too.
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Old 01-14-2022, 08:54 AM   #16
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3 million people here, 1 E85 pump in the whole damn city, luckily it’s one exit down from my office.
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Old 01-14-2022, 10:20 AM   #17
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We have 3 pumps here in the whole state and one of them is guarded by armed soldiers.
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Old 01-15-2022, 09:04 AM   #18
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I'm going to be doing a G30-660 on my built 2.5L with mild cams. Hoping for 400 mmmmaybe 450 on a conservative dyno with 94+Meth. 91+Meth is probably gonna be closer to 400. I think its a dynapak hub dyno I'll be on, so the numbers will be inflated.

If OP had E85 then there's a chance the G25-660 would almost hit 400, but Garrett got creative with how they rate the hp on the new G series to inflate their numbers. G25 however would have very good street manners of the turbos named so far and would be "fun" to drive even with a .82 hotside but I'd probably shoot for 1.xx.. I had a gtx2863 w/ a .82 hot side that spooled up lightning quick, but got choked for flow up top.

GTX3071/GTX3076 would flow more, but less responsive on the street. You are still on stock cams so that helps. my old GT3076 hit close to your power goal but with very aggressive cams on pump gas and wasn't all that fun to drive. The car was basically dead below 3k rpm.

Either way you'll want to go rotated. EFR has always interested me with their use of exotic materials in the compressor/turbine wheel to reduce rotating mass. Xona Rotor also sounds good with their XR line.

I didn't see what fuel you'd be using, but on 91 I think it'd be a challenge. Others have said you might need 1300cc injectors and I'd tend to agree. If you think you'll ever get E85 then 1600's or bigger would be my choice.

You may also have to do water meth injection to get extra octane, or run a fuel additive.94 or 98 octane makes higher power goals a lot easier, or at least a lot safer.
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Old 01-15-2022, 11:04 AM   #19
K3rm1tth3fr0g
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Quote:
Originally Posted by Alistairh View Post
I'm going to be doing a G30-660 on my built 2.5L with mild cams. Hoping for 400 mmmmaybe 450 on a conservative dyno with 94+Meth. 91+Meth is probably gonna be closer to 400. I think its a dynapak hub dyno I'll be on, so the numbers will be inflated.

If OP had E85 then there's a chance the G25-660 would almost hit 400, but Garrett got creative with how they rate the hp on the new G series to inflate their numbers. G25 however would have very good street manners of the turbos named so far and would be "fun" to drive even with a .82 hotside but I'd probably shoot for 1.xx.. I had a gtx2863 w/ a .82 hot side that spooled up lightning quick, but got choked for flow up top.

GTX3071/GTX3076 would flow more, but less responsive on the street. You are still on stock cams so that helps. my old GT3076 hit close to your power goal but with very aggressive cams on pump gas and wasn't all that fun to drive. The car was basically dead below 3k rpm.

Either way you'll want to go rotated. EFR has always interested me with their use of exotic materials in the compressor/turbine wheel to reduce rotating mass. Xona Rotor also sounds good with their XR line.

I didn't see what fuel you'd be using, but on 91 I think it'd be a challenge. Others have said you might need 1300cc injectors and I'd tend to agree. If you think you'll ever get E85 then 1600's or bigger would be my choice.

You may also have to do water meth injection to get extra octane, or run a fuel additive.94 or 98 octane makes higher power goals a lot easier, or at least a lot safer.
Garrett didn't "get creative", they used BHP numbers like everyone else - because they're an OEM, that's just the numbers they're going to use. Also WHP varies WILDLY based on dyno so of course they're measuring at the crank.

Last edited by K3rm1tth3fr0g; 01-15-2022 at 11:11 AM.
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Old 01-15-2022, 12:27 PM   #20
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I think the issue is the turbine wheel, it is a lil small on g25 but it flows a good bit more than a gt25. I think E85 would do it, I would go G30 if on pump. Well personally I’d put a g30 turbine clone in a gtx3071.
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Old 02-02-2023, 03:21 PM   #21
Carol Huntley
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I'm looking for a turbo up grade and GRIM SPEED BB 500 seems to be a good choice.
Rotating cost a fair chunk of money . To bad Garett doesn't make a direct fit .

My Best To Everyone
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Old 02-02-2023, 06:23 PM   #22
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Quote:
Originally Posted by Carol Huntley View Post
To bad Garett doesn't make a direct fit .
They do. Sold through ATP...

http://www.atpturbo.com/mm5/merchant...y_Code=SUB-EXT

Personally, I really like the GTX3576-R Gen 2 for bigger power without loosing spool (on the right setup).
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Old 02-02-2023, 03:21 PM   #23
Carol Huntley
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I'm looking for a turbo up grade and GRIM SPEED BB 500 seems to be a good choice.
Rotating cost a fair chunk of money . To bad Garett doesn't make a direct fit .

My Best To Everyone
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Old 02-02-2023, 05:31 PM   #24
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BCP X500 R. The R is new.
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Old 02-02-2023, 06:30 PM   #25
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And blouch and APS and housings all over eBay
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