VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

So i have a 2001 2.0L 8v Jetta...my friend GAVE me his stock turbo off his '02 wrx (TD04L-13T) Now i'm looking to upgrade...since i did all the work to fit the turbo...i was thinking of keeping to subie upgrades(FP18g) but its not hard to jus get a different manifold and turbo all togther(T3/T4 50 trim).

All in all i'm looking for 350whp at around 24-25psi ON PUMP. Looking at the Compressor maps for the the two turbos they flow very much the same but what confuses me is that after calling FP direct and talking to a tech about it, he was saying that i can spin the turbo up to 28psi and that definately doesnt show when looking at its map. Where as the 50trim when looking at its map can spin upwards of 32-34psi. Anyway PSI is an irrelevent number at times...of course its all about volume of flow so when plotting on these compressor maps the differences in efficiencies is only 1 or 2 percent at various p/r and rpm.

Ok i think i'm rambling....which turbo would you all go with? How close do you all think they are?

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

50 Trim

http://www.rbracing-rsr.com/turbo/TurboMaps/t04e-50.gif



FP18g

http://img.photobucket.com/albums/v2...D06-18GMap.jpg

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

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Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

That motor built? I didnt know an 8v could stand up to 350hp.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

Yes it's built. JE pistons, Scat Rods. The stock motor handles around 250-275whp.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

you might want to change your cold side piping to something larger than 1" for that kind of power..

more info on the setup, ---- looks good so far. Why did you choose to build an 8v? I dont know much about veedubs but isnt that like the worst engine ever?

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

umm...cold side is 2.5in hotside is 2in(same as turbo outlet) and i chose to build it to prove a point (that its NOT the worst engine ever)

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

50 trim wins every time for good power on lowish boost and pump gas. 350whp should be attainable if your motor can support it which it sounds like it can. The newest TD06H 18g from FP is leaps and bounds beyond the original 18g's that contained horribly inefficient compressor wheels, but I can't comment on it as I haven't run one yet. If you're talking about the TD05H 18g then this is a no brainer and go with the 50 trim.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

Yes i'm talking about the new one..i was under the impression that its the same compressor wheel but in a 16g housing and with a TDO6 wheel with 1 less blade (hence the SL2)...

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

You should post more pic's.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

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http://img.photobucket.com/albums/v2...arningsign.jpg

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

Yeah IDK about that turbo. I've owned a few TD05H 18g's including a pile of ---- Greddy and a Forced Performance unit, and I was utterly unimpressed. The Greddy lasted all of 3 days and munched itself, but that's to be expected with a Greddy turbo haha. The FP TD05H 18g sucked ass as well. I actually switched to an E316G and made better power. The 18g compressor wheel is notoriously inefficient, but maybe coupled with the larger TD06H exhaust wheel it is a better combo. I'd still go with the 50 trim though, as they're the kings of pump gas, and are ultra reliable and easy to maintain.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

hmmm i think i'm gonna try it...then if i dont like it sell the ish and get a 50trim :y

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

thats a sweet dub, and ABA's are good motors, i'm using one in my next build :6

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

Suit yourself, but the 50 trim is better for pump gas. If you insist on a Mitsu turbo get a 20G. An 18g is a bastard child of suck. Good luck.

Re: VW 2.0...with a subie turbo...next option...t3/t4 50trim vs FP18g
 

word, another 2.0l 8v.

almost done with my mine.

bought my first flux welder and finished the downpipe today.