Gt3071 vs 50 trim vs etc.

[palerider]

Well I want a new turbo. I dont think thats been much of a secret lately.

My question is why is the gt30 series always so encouraged here. My tuner and friend from dcr were encouraging a 50 trim as a better option, but Ive never heard it mentioned here..... of course turbo upgrades have been not really discussed that much at all anyway.

Im looking for between 350-400hp on stock internals.... I'll probably go external wastegate on the PG manifold. Why not like a 50 trim dual ball bearing, external wastegate....?

Can you guys take some time out to talk about turbos please? I want to tackle this next and the more I get into the process the more I seem to be complicating it.

 

[Dream]

There are so many variables when talking about turbo's and trim levels. I dont even know that anybody makes a manifold for us to run an external gate yet.

Im sure alot of people recommend GT seriers turbo's because Garrett has a great name in the turbo industry. I had a 35R and loved it. I also had a 20G and loved that too, just 2 completely different turbo's.

These cars are so new not many people are running different turbo's yet. Keep an eye on ATP's new turbo kit for the 3, seems to be a decent looking kit for a good pric, but there using an internal gate.

 

[driver311]

I recommended a dbb 50trim. They are perfect for cars on pump gas, our displacement and the amount of rpms we have to work with. Im with dcr. If not that turbo Id almost venture to say the 2871r. That turbo might even be a better choice if your only wanting 350whp on pump and 400whp on race gas. Will spool hard and yet make badass topend

Ps. I need a new sponsor. Palerider performance and supplements! Ill take a 2871r please!!!

 

[palerider]

lol.... so now we throw the 2871 into the mix. Im only saying 350-400 because were going into uncharted territory and Im still on stock internals. Id love to say 400 plus but I just dont think the rest of the setup can support it yet.... 50 trims can take srts over 400hp anyway, so its not like Im selling myself short longterm really either.

ken said the PG manifold can be welded for external wastegate. Between that and dcr's ability to custom fab ANYTHING.... Im gonna do the external just because of spool and free hp.... without jacking up the ecu.

ATPs kit is gonna be OK but I think if you throw money out of the equation it can be improved. And again the internal wastegate is just blah... I dont think my tuner will even allow me to do it...lol

"Palerider performance ...supplements"... I like that. It may lead people to believe you're sponsored by an ED solution though ...lol

 

[driver311]

The 2871r will suit you just fine. 350whp on 18psi easy with the right bolt ons. Which you have. The 50trim is a 450-500whp capable turbo. Just for example. Last month i built two srts. One with 50trim and .63 back half. Full spool at 3600rpms and 405whp on 22psi on pump. 440whp on 25psi race gas. then i did my roomates car 50trim .48 back half. 425whp on 21psi full spool at 3100rpms and 460whp on 25psi race gas. Both very conservative. The 50trim makes big power. But my suggestion to you even though dcr will disgree is if you do the 50trim TELL THEM YOU WANT A .48 BACK HALF. will spool faster than the .63 back half and make more power on lower boost levels. The .63 back half will make more power past 25psi but you wont see those levels. Trust me on this one. I have built 10 50 trim srt and the fastest two both had .48 back halfs. 99% of the time you will run 18-20psi and at those boost levels this turbo setup will beat the other. OK TIME TO BREATH.

 

[palerider]

The 2871r will suit you just fine. 350whp on 18psi easy with the right bolt ons. Which you have. The 50trim is a 450-500whp capable turbo. Just for example. Last month i built two srts. One with 50trim and .63 back half. Full spool at 3600rpms and 405whp on 22psi on pump. 440whp on 25psi race gas. then i did my roomates car 50trim .48 back half. 425whp on 21psi full spool at 3100rpms and 460whp on 25psi race gas. Both very conservative. The 50trim makes big power. But my suggestion to you even though dcr will disgree is if you do the 50trim TELL THEM YOU WANT A .48 BACK HALF. will spool faster than the .63 back half and make more power on lower boost levels. The .63 back half will make more power past 25psi but you wont see those levels. Trust me on this one. I have built 10 50 trim srt and the fastest two both had .48 back halfs. 99% of the time you will run 18-20psi and at those boost levels this turbo setup will beat the other. OK TIME TO BREATH.

So if your me... what are you saying? 2871 now or 50 trim?

What about 50 trim at 18psi to start? Wouldnt that be the better longterm option?

What your guess at where full spool would hit on an ms3 at 18 psi, with 50 trim, dbb, .48, and external wastegate on the PG manifold? And what do you think the hp number would be.... roughly?

I know thats alot of speculation... but Im glad you like the 50 trim because its the way Im being steered here.

 

[driver311]

The .48 would spool hella fast. Now dcr is gonna tell you that they dont recommend it becasue it will surge. BUT IM TELLING YOU RIGHT NOW IT WONT. It will past 25psi but you wont be running those levels. my guess full spool on that setup 2800-3200rpms. About the same as the 2871r. But I still say 2871r. I just think its better for your goals. Though a dbb 50trim would be my next suggestion. With the .48 back half you would love it. PLUS THE SOUND OF THE DBB 50TRIM IS AWESOME. The turbo screams like a turbo should. Kind of like a ford powerstroke diesal turbo. That loud wooshhhhh noice. LOL

Just get he dbb 50trim I know thats what they are gonna push on you anyhow. My guess is 380-390whp on 18psi. NO s*** its gonna be a monster with that turbo. With the 2871r id guess around 340-350whp on 18psi.

The 3071r is in between these two turbos and it made 375whp at atp with 18-20psi.

 

[palerider]

The 3071r is in between these two turbos and it made 375whp at atp with 18-20psi.

James suggested the 50 trim as a "smaller", more streetable, application than the gt30. Maybe hes just thinking 3076 and hes not a familiar with the 3071 or something. Mark was busy tuning a nissan when we having that part of the discussion.

That number at atp is in my head too. i wish there was somebody out there that could confirm it. I keep wondering why the hell the guys with bigger turbos(gt30s) on the ms6 side are getting such bleh results with their upgrades.

I almost want to try something different just for that alone.

 

[driver311]

the turbo spools to slow so the powerband is not that good. Plus they are running lower boost levels. Pretty much they wasted there time and their cars will always be slower. The 3076r wants to be run on higher boost levels. A 50trim on an srt will make 400whp on 21psi. A 3076r will make 380whp on 21psi. A 50trim will make 480whp on 28psi. A 3076r will make 520whp on 28psi. Its hard to explain but it works that way.

 

[palerider]

Thanks anthony as always..

Is anybody else planning on going big turbo this year? anybody......? I have a feeling that atp kit, when its done for the ms3, will make people want to pull the trigger.

 

[mrlilguy157]

I will be big turbo soon enough

I was thinking maybe a 2876r, pushing the power band up a bit which would feed enough power to keep us going in the top of gears

 

[Sierra117]

Anything less than a 4788 is to small. Just be a man and go with a 5591r.

^Thats my way of saying subbed to watch the discussion and read about this.

 

[Captain KRM P5]

had the 2871 been available when we did Jason's ms6 we would have gone that route over the 3071. the 30 series makes for nice top end but has killed his low end/spool.

 

[palerider]

had the 2871 been available when we did Jason's ms6 we would have gone that route over the 3071. the 30 series makes for nice top end but has killed his low end/spool.

Whats the latest #'s for him? And also how much of a difference do you think your manifold with a wastegate would mitigate that loss?

 

[laloosh]

had the 2871 been available when we did Jason's ms6 we would have gone that route over the 3071. the 30 series makes for nice top end but has killed his low end/spool.

am i the only one that considers this to be a good thing?
Spool to fast downlow where fuel is limited and zoom zoom boom you go. ive never driven a 30 series 3/6 but how bad could it be? As long as it hits max psi by 4k its good for me, btw check you pms ken, ive sent you something a couple days ago

 

[Derek88]

Dont be a pussy.

T-88!

Go big or go home.

You want people to look in at your engine bay and think "holy s***, that turbo inlet could suck up mice, birds, and little children"

 

[Haltech]

Dont be a pussy.

T-88!

Go big or go home.

You want people to look in at your engine bay and think "holy s***, that turbo inlet could suck up mice, birds, and little children"

(omg)

Thats what im talkin about. Looks like you will need another front strut just to support the weight of that thing! lol

 

[palerider]

Normally Im the king of the one liners, but that picture leaves me speechless.

Haltech...You know your stuff. Whats your say on the turbo?

BTW...on the atp thread here...there was a guy posting a response from atp. Supposedly they'll have speed3 specific kit available by the end of Feb. Thats tempting to just wait it out for that. Ive got to wait for the manifold anyway.

Anybody else confirmed that with them?

 

[Dream]

the turbo spools to slow so the powerband is not that good. Plus they are running lower boost levels. Pretty much they wasted there time and their cars will always be slower. The 3076r wants to be run on higher boost levels. A 50trim on an srt will make 400whp on 21psi. A 3076r will make 380whp on 21psi. A 50trim will make 480whp on 28psi. A 3076r will make 520whp on 28psi. Its hard to explain but it works that way.

I dont think ive ever seen a 30R make 500 to the wheels. What kind of car was that on?

 

[driver311]

There is a guy here locally that just made 505whp on a sr20 with only 25psi. It will do it easy. Im talking about srts in the previous post. s*** I see evos hitting 500whp on 3076rs all the time. WHERE U BEEN, thats like old s***. Dsm are hitting 550whp on 50trims and your saying a 3076r wont do it. LOL