ebay 50 trim turbo

[dsm-onster]

The 50-trim is nearly a 1/4 of an inch larger than an evoIII 16g. The evoIII 16g has the same major diameter as the 18g an even a 20g. Both of which are 1/3 of an inch smaller than the 50-trim major diameter. So a 50-trim is very noticably larger than even a 20g.

This means it's definately possible for it to be bigger than a 14b but smaller than a 50-trim. But does not mean that it performs like a 16g. Obviously, you both have access to this turbo. Why don't both of you just wait until you get measurements before you post again?

 

[Spln_Hrd]

For the people who say, ITS CHEAP BUY IT! I dont think I want to risk my $6,000 engine ingesting a $10 Chinese compressor wheel.

 

[1slow97]

I been running that turbo for a 1year now. No problems yet, it carried me to 8.01 in 1/8 mile on 18 psi. I also ran it up 26 psi, a couple of times still no probblems..But it will be comeing off soon for something better.

 

[dsm-onster]

For the people who say, ITS CHEAP BUY IT! I dont think I want to risk my $6,000 engine ingesting a $10 Chinese compressor wheel.

Do these compressor wheels break? Do these turbine shafts break?

 

[JusMX141]

Do these compressor wheels break? Do these turbine shafts break?

As far as my personal experience with this turbo, I attempted to rebuild one of these for a Honda owner once. It was the 50-trim "B" cover version just like the one in the link above.

The turbo hadn't been abused....it was on a Honda application where it saw 8-10psi and had plenty of oil. It came to my shop with tons of up/down play, which normally occurs in turbos that are terribly out of balance or deprived of oil.

The internals were completely junked....the turbine shaft had grooved so badly that it couldn't be used. I broke 4 out of 6 bolts that hold the CHRA to the exhaust housing because these chinese turbos use the cheapest hardware they can find.

At this point, I realized that the unit wasn't worth rebuilding as the owner would have more in parts and labor than the turbo was worth. I told the guy to find another turbo.

It should also be noted that the compressor wheel is made of cheap-ass pot metal cast aluminum....if the fins are bent even the slightest bit, they break right off. A true Garrett compressor can be carefully straightened without breaking if it's slightly bent.

So.....yeah.

 

[Boostin2High]

1 of my friends has an ebay 50 trim on his 240 running 23 lbs with ALL supporting mods. He's had it for almost 2 years with not a single problem. And he runs 11's all day. I guess you can say it's just a pick of the litter with the ebay turbos..

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[skinnypimp]

The 50-trim is nearly a 1/4 of an inch larger than an evoIII 16g. The evoIII 16g has the same major diameter as the 18g an even a 20g. Both of which are 1/3 of an inch smaller than the 50-trim major diameter. So a 50-trim is very noticably larger than even a 20g.

This means it's definately possible for it to be bigger than a 14b but smaller than a 50-trim. But does not mean that it performs like a 16g. Obviously, you both have access to this turbo. Why don't both of you just wait until you get measurements before you post again?

trust dsm-onster this 50 trim looks smaller than my turbonetics 50 trim. the inlet is not a true 3in inlet. i will take pics tomorrow so you can see what i'm talking about. it's small but not 14b small

 

[JusMX141]

It's funny to hear guys throw the term "trim" around as if they're using to describe the overall size of the turbocharger.

TRIM is simply the difference in size between the inducer and exducer of the compressor wheel....the pitch if you will. It is calculated by using the forumla: inducer squared / exducer squared x 100.

Use that formula on the compressor wheel of a Big 16G and you get 49.83938.....which equals.....are you ready for this??? 50 TRIM!! That's right, a Big 16G is a 50-trim turbo too.

Now obviously a Big 16G is much smaller and would havefar less potential than the 50-trims made by companies such as Turbonetics.

Going a step further, if you do the math on a T25 you'll find that it has a 60-trim compressor.

My point by this post is that TRIM only calculates a compressor's efficiency.....it has NOTHING to do with the size of the turbo.

 

[dsm-onster]

You had to go and spoil the fun. I was trying to get these guys to post some measurements. Of course they are selling 16g spec wheels as 50-trims. That is the trim! and that is the deviousness built into ebay.

 

[pneumo]

Or maybe they're selling a T3 50 trim and not the popular T4 50 trim that we all love.