aguita

iTrader: (8)

hello..

how many whp can a 50trim turbo make?also how man psi are they capable of? Are these turbos like a GT30 or something on those lines?Im asking bc i was told that a 50 trim is a GT30!?

Im asking this question bc I bought a new evo and It came with this turbo i think..Ill post pictures of the turbo to show u guys, I want to know how many whp will this produce?!

thanks

Ted B

iTrader: (6)

The 50-trim is not a GT30. A GT30 is a newer design, although the two have somewhat comparable street performance.

The 50-trim is completely outclassed by the FP Red. I see no reason to even consider a 50-trim these days.

1NastyMR

iTrader: (102)

50trims are a thing of the past these days, don't get it

TalonTuner4G63

A 50 trim usualy flows somwhere in the low 50lb/min range. It is a conventional bearing turbocharger (like our stock turbos) whereas the GT series turbo are ball bearing CHRA's, which usualy allow for a quicker spoolup. Conventional bearing turbos like a 50 trim usualy don't have to be coolant fed, whereas ball bearing units usualy are.

A 50trim maybe "outdated" in the Evolution world where Evolution guys want a four cylinder car with a huge turbo to spool as soon as it possibly can, and consider a turbo spooling up at 3200rpms "laggy", which is, in my opinion, missing the whole point of having a turbocharged four cylinder. However Forced Performance has made very excellent conventional bearing bolt on turbochargers like the FP Green and FP Red. Regardless, "old school" 50 trims and MHI 20gs have been proven to make great power, albiet with a little bit slower spool, which in some people's setups isn't nessisarily a bad thing.

Ludikraut

iTrader: (17)

That's not quite correct. You can get a ball bearing 50 trim. I run an AMS BB 50 trim on my car. At the moment it produces 320wtq/420whp on a 93 Octane tune. On race gas I've seen 50 trims go as high as 450wtq/500whp. A GT30 series (i.e., 3076) will spool about the same, but have slightly more top end power.

I agree with Ted that an FP Red would be the better choice these days, as it offers similar performance at a much lower price point.

l8r)

aguita

iTrader: (8)

how many psi? how many psi can they handle

Ludikraut

iTrader: (17)

You're not really asking the right question. The questions you should be asking are:

How much air will the turbo flow? _and_ What does the compressor map look like?

For argument's sake, let's say that your average 50 trim flows 47 lbs/min. On a 2.0L engine, assuming 100% VE, that theoretically equates to:

4500 RPM - 47psi
6000 RPM - 32psi
8000 RPM - 20psi

Sounds good in theory, but you'd also have to look at the compressor map for the turbo. I have yet to find a compressor map for a BB 50 trim turbo - unfortunately all of the compressor maps that I have found for 50 trims seem to be for a smaller turbo than what I am running. I know for sure that I can push 20 psi at 8000 RPM, which would be off the map on any of the 50 trim compressor maps out there. I haven't tried to max mine out on a race gas tune, but I would guess that it would be fairly pointless to try to push more than 30-32 psi, which will taper to less psi in the upper RPM range. A 50 trim is really designed to work at boost levels between 22-27 psi. Once you go past that, you just start pushing hot air (e.g., you're out of the turbo's efficiency range).

l8r)

JDMevoBOOST

iTrader: (37)

This guy is kinda hopeless. Every car is different. Some cars with the same turbo and setup can take more boost without knock than others. You have to get your car tuned to find out. There is no magic number....

aguita

iTrader: (8)

I know that every car is different,but you can see that manufactures that makes turbo they say good for up to 500whp example..

I asked on how many WHP does a stock turbo produce, i got answer that will go from 330-370 depending on tune..I made 368 on the stock turbo...so Im just asking what range of number i should spec..

Ludikraut

iTrader: (17)

^ Manufacturers generally do not give estimates in terms of whp. For example, Garrett's figures are given in crank hp, not whp.

l8r)