Which turbo is best?

Mk3FirstCar-Mike · 07-31-2011, 07:14 PM

The stock turbo can do 300bhp all day long. 18psi, however, I doubt it. I'd try and find a slightly bigger one, but that's just me. The headgasket on the 7m can be a wee-bit of a problem, though. I would certainly replace mine if I were going to be running anything past stock boost. As stated before, if you're going to be running higher boost, you need to make sure your engine is up to handling it and you need to upgrade your injectors/intercooler. I extremely recommend getting a new headgasket if you're going to be running that high boost. As to BOVs... I really can't tell you much about them... I'll look around YouTube and see if I can't find something that sounds epic for you. Though, to be honest, a wastegate is safer for your engine. The BOV is more to save your turbo.

dylansword · 07-31-2011, 07:49 PM

Any suggestios on turbos now? Also id like it to be a fairly direct bolt on.

dylansword · 08-09-2011, 04:17 AM

Any one have anything to say about this t61?

http://www.cxracing.com/mm5/merchant...t_Code=TRB-T61

Mk3FirstCar-Mike · 08-09-2011, 04:46 AM

Just my two cents here, but I'd try to find one with about a .7-.8 A/R, ball bearing and (external) wastegate. Ball bearing turbos are more durable than journal bearings. That turbo is a fairly good size for street driving, though. It should spool up nice and quick. The only thing that's stopping me from liking it is the internal wastegate and not knowing who makes it.

- Other than that, for the horsepower you're wanting, it should do just fine.

dylansword · 08-09-2011, 05:01 AM

I don't want to sound stupid, but what's the differenct between internal and external wastegate? I see a wastegate on both of them. Is the boost still adjustable? Thanks very. Much

Mk3FirstCar-Mike · 08-09-2011, 05:53 AM

Don't worry about feeling stupid; I'm stupid 70% out of the day. Anyhoo, external wastegates are more precise and more responsive. They're also easier to work on and provide slightly less backpressure, IIRC.

Also, internal wastegates CAN be tuned, but you can't tune them below a certain boost pressure. However, they can be tuned up by using a boost controller.

dylansword · 08-09-2011, 04:37 PM

Okay, so there still good, just not for getting big numbers, and super precise tuning? One of my buddies has a t3 that he'd sell me for cheap. Anyone ever used one? Any recomindations?

Mk3FirstCar-Mike · 07-31-2011, 07:58 PM

http://www.youtube.com/watch?v=bUe3ODnUysM&NR=1

http://www.turbosmartonline.com/index.php?id=392

That's the only one that I could find that I actually liked.
Here's hoping?

El Supracabras · 07-31-2011, 10:18 PM

300WHP can be done with ease, but probably not as easy as you like. It's a commonly repeated recipe but you have to do things right or you might lose the engine.
If you plan to hit 18psi you might as well do a metal gasket now.
Follow this order:
fresh fluids, fix ALL leaks, check/replace all hoses (oil cooler too), check/replace head gasket, check/replace spark plugs & wires, check/replace timing belt, check/replace clutch, check/repair any codes. Then....
3" dp, 3" cat, 3" catback, air filter,
fuel pump, 1UZ KVAFM+ 550's+AFPR,
boost controller+ wideband gauge+ SAFC or something to trim with, intercooler and hard pipe kit,
57Trim Ct-26
stir, tune and serve. Serves 6 cylinders.
Should get you to the target. Although at 18psi you might be a bit higher.

08-09-2011, 04:17 AM	#3
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	Any one have anything to say about this t61? http://www.cxracing.com/mm5/merchant...t_Code=TRB-T61 Last edited by dylansword; 08-09-2011 at 04:34 AM.

08-09-2011, 04:46 AM	#4
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	Just my two cents here, but I'd try to find one with about a .7-.8 A/R, ball bearing and (external) wastegate. Ball bearing turbos are more durable than journal bearings. That turbo is a fairly good size for street driving, though. It should spool up nice and quick. The only thing that's stopping me from liking it is the internal wastegate and not knowing who makes it. - Other than that, for the horsepower you're wanting, it should do just fine. Last edited by Mk3FirstCar-Mike; 08-09-2011 at 04:51 AM.

08-09-2011, 05:53 AM	#6
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	Don't worry about feeling stupid; I'm stupid 70% out of the day. Anyhoo, external wastegates are more precise and more responsive. They're also easier to work on and provide slightly less backpressure, IIRC. Also, internal wastegates CAN be tuned, but you can't tune them below a certain boost pressure. However, they can be tuned up by using a boost controller. Last edited by Mk3FirstCar-Mike; 08-09-2011 at 06:20 AM. Reason: Typo - More Information Added

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07-31-2011, 07:14 PM	#1
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	The stock turbo can do 300bhp all day long. 18psi, however, I doubt it. I'd try and find a slightly bigger one, but that's just me. The headgasket on the 7m can be a wee-bit of a problem, though. I would certainly replace mine if I were going to be running anything past stock boost. As stated before, if you're going to be running higher boost, you need to make sure your engine is up to handling it and you need to upgrade your injectors/intercooler. I extremely recommend getting a new headgasket if you're going to be running that high boost. As to BOVs... I really can't tell you much about them... I'll look around YouTube and see if I can't find something that sounds epic for you. Though, to be honest, a wastegate is safer for your engine. The BOV is more to save your turbo.

07-31-2011, 07:49 PM	#2
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	Any suggestios on turbos now? Also id like it to be a fairly direct bolt on.

08-09-2011, 05:01 AM	#5
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	I don't want to sound stupid, but what's the differenct between internal and external wastegate? I see a wastegate on both of them. Is the boost still adjustable? Thanks very. Much

08-09-2011, 04:37 PM	#7
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	Okay, so there still good, just not for getting big numbers, and super precise tuning? One of my buddies has a t3 that he'd sell me for cheap. Anyone ever used one? Any recomindations?

07-31-2011, 07:58 PM	#8
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	http://www.youtube.com/watch?v=bUe3ODnUysM&NR=1 http://www.turbosmartonline.com/index.php?id=392 That's the only one that I could find that I actually liked. Here's hoping?

07-31-2011, 10:18 PM	#9
El Supracabras 3" Exhaust Join Date: Feb 2010 Location: Chicago Posts: 240	300WHP can be done with ease, but probably not as easy as you like. It's a commonly repeated recipe but you have to do things right or you might lose the engine. If you plan to hit 18psi you might as well do a metal gasket now. Follow this order: fresh fluids, fix ALL leaks, check/replace all hoses (oil cooler too), check/replace head gasket, check/replace spark plugs & wires, check/replace timing belt, check/replace clutch, check/repair any codes. Then.... 3" dp, 3" cat, 3" catback, air filter, fuel pump, 1UZ KVAFM+ 550's+AFPR, boost controller+ wideband gauge+ SAFC or something to trim with, intercooler and hard pipe kit, 57Trim Ct-26 stir, tune and serve. Serves 6 cylinders. Should get you to the target. Although at 18psi you might be a bit higher.