20G vs 50-trim

sleepydsm · 06-06-2005

I've heard a lot of different opinions, and I want to hear more! What would be a better turbo on a stock bottom end 6-bolt for making supreme pump gas power? I've heard the 50-trim is more difficult to tune, and the 20g makes more real world power than most 50-trims (This all isn't fact, just some things I've heard).

A//// Guy · 06-07-2005

Depends on what you want to do. If your buying used stuff and either one is a good deal then it doesnt really matter. Personally if I were going to buy a brand new turbo out of those 2, get the 50 trim. Used is the only thing I would question- if I found a decent 20g I would take it for the right price, if I found a decent 50 trim I would also take that. It just depends on what is out there locally or if you want to buy brand new.

**JET** · 06-07-2005

If buying used I would go with a 20g (TD06 if possible) if I were buying new I would get the 50 trim. Both are great turbo's, but the 50 trim is a bit bigger and a tad more efficient. I think the 20g wins in reliability though.

**scheides** · 06-07-2005

I agree with JET, especially when buying used. I personally bought a used HRS Super20g that made it's way through 4-5 other people on this board, making me the 5th or 6th owner. It pulled like hell, did not smoke or burn oil, and had almost zero shaft play.

Alpine TSi · 06-07-2005

Gotta love water cooling in addition to oiling. Mitsu turbos all the way. When I go bigger I am going with an FP Green, the perfect combo of the fiddy trim and 20G.

sleepydsm · 06-07-2005

Thanks, thats a lot of info for me to consider. Generally speaking, what would be an average price for a used 20g/50-trim in Good condition (not Excellent)?

**Kracka** · 06-07-2005

I bought my used 20G for $400, got it ported, then sold it for $450 after using it on my car. It was then sold again for $450 I believe (EclipseTurbo has it now). I'd take the 20G over a 50-trim w/o question.

tpunx99GSX · 06-07-2005

Funny how the turbos kinda get tossed around this site, I know the turbo has been on like 4 different cars on this site. I think.

**JET** · 06-07-2005

My old 50 trim got tossed around to at least 4 people on the site too. Ported PTE 50 trim with internal gate that was going for about $500. A turbo is one thing I will not buy used unless I know the person and history of the turbo.

john · 06-07-2005

used-20g -Proven to make reliable power and the turbos last longer than the cars.
new-PTE50 -Cheaper and can make more power. I had a tougher time tuning my car
than my brothers on the 20g though... My car would knock a lot. I think CVD
had problems a while back also. I couldn't get 17psi on pump.

sleepydsm · 06-07-2005

Do the PTE 50-trims have reliability issues? I'd rather go new on my turbo purchase, unless I came across a great deal... Cheaper would win me over. I checked FP, and I couldnt believe new 20Gs are about $1200, while a PTE fiddy is maybe 850, plus an install kit ($950ish)?

**JET** · 06-08-2005

My 50 trim was a great turbo. I ran 23psi on pump gas with it. I hit a 12.02@119 with it (crankwalked engine wouldn't shift) on pump gas. CVD has my turbo now and it is still going strong.

sleepydsm · 06-08-2005

It's a tough choice.

slowbubblecar · 06-09-2005

When we both had the 50 trim and I had the hahn 20g, I noticed the 20g spooled a little quicker. I think the 50 trim also had some shaft play brand new which was more than the 20g had after shane, barton and me. I liked the 20g a lot. We got the buschur one that seemed to spool really quickly, but we put something a little bigger on after swapping in a 6 bolt a week or so after installing it. The only reason we took it of right away though is because we had a little biger one sitting around and wanted to try to make more power.

Shotgun! · 06-09-2005

20G all the way.

niterydr · 06-09-2005

Just a friendly reminder, that there are many variations on the '50 trim' just like there are many variations on the '20g'. Switching out turbine wheels can affect power, performance, and reliability, the same goes with turbine and compressor covers. Trim is an area ratio used to describe both turbine and compressor wheels. Trim is calculated using the inducer and exducer diameters. As trim is increased, the wheel can support more air/gas flow. So when you say '50 trim' all you are saying is the ratio of the inducer vs exducer. Trim = (minor diameter / major diameter) ^2 * 100
Minor diameter is obviously the inducer, major is the exducer.
So with that being said, I can't give an opinion on a '50 trim' versus a '20g'. If you broke it down a little more, like a specific '50 trim' or say a td06 burschur 20g or something, more information could be brought forth.

Shotgun! · 06-09-2005

just say twenny...

niterydr · 06-09-2005

Quote:

Originally Posted by Grey Wulf

just say twenny...

lmao...

sleepydsm · 06-11-2005

Sorry I was not specific enough. I'm just gonna go with whats cheaper, I'm not trying to make ten-billion horsepower.

**Kracka** · 06-11-2005

Twenny Twen Twen!