to4b 50 trim vs. 20g

[ATLDSM96]

im looking at a new trubo setup and i am deciding between these two turbos. and i was wondering what everyone on here thought was a better turbo. it will be daily driven car. but a little late spool up is now big deal. but if anyon has any input it would be greatly appreciated.
thanks Robert

 

[99gst_racer]

I had a t04b 50-trim many years ago - I was OK, but I wasn't very impressed.
And I've never used a 20g before.

How much power are you aiming to make? And what RPM would you like to be fully spooled up by?

 

[ATLDSM96]

im aiming for like 400 or right below. and i would like to get full spool by 4k

 

[JusMX141]

TD05H 20G if you're running under 25psi. Spools as quick as a 16G, tons of pull on top.

Consider the HX35 in a DSM Bolt-On turbine housing as another option; the 50-trim isn't an option for me at all. I'm fed up with the poor reliability and fragility of the Garrett Hybrids.

 

[ATLDSM96]

yea i read about the hx35. but i think im goint with the 20g for reliability and fast spool and direct bolt on ability.( same oil lines and stuff). now should i get the td05 or the td06? i heard the td06 has more top end but spools a little bit slower then the td05. how much slower are we talking?

 

[JusMX141]

300-500 rpms slower than the TD05H turbine, depending on supporting mods (cams, exhaust, intake) and how healthy your engine is.

With stock cams, a TD05H 20G should see full boost around 3600-3800 rpms. It's my favorite turbo for a street car running under 25psi. By TD05H, I'm talking about the turbine ONLY...this has nothing to do with the cold side.

 

[ATLDSM96]

Got ya. so who sells the td05h 20g you speak of. i have 272 cams also.

 

[ATLDSM96]

is this it?

TD05H-20G Custom Performance Turbocharger - Modern Automotive Performance

 

[JusMX141]

I have about (8) 20G's to choose from at my shop. All of them will be fully rebuilt before they leave and come with a 30-day warranty.

All of mine look like this one that I recently rebuilt for a customer:

You must be logged in to view this image or video.

 

[1bad92awd]

Just out of curiousity and not to change the subject of this thread, but how much do you sell those 20G's for? I have a friend who may be interested.

 

[Boosted98gsx]

An 18g6sl2 would probably be right up your alley for power. Contact FP. (or even a 20g6sl2)

 

[ATLDSM96]

yea i looked at the 18g for a second and its still an option but i havent heard much about them. i also dont want to be pushing my setup to the edge all the time.not saying i would be with the 18g but if 400hp is maxxing it out i would rather get the 20g.

 

[soldave]

Am using a Bullseye T04B 50-trim and having pretty good success with it. Been running it at 1.55-1.6 bar so far for about 6 months and it feels nice. Spools pretty well and keeps pulling right up to redline.

 

[dsm-onster]

yea i looked at the 18g for a second and its still an option but i havent heard much about them. i also dont want to be pushing my setup to the edge all the time.not saying i would be with the 18g but if 400hp is maxxing it out i would rather get the 20g.

You will be to get 400whp out of the td05h 20g. Don't try to get 20g power out of a 16g hotside You need the td06h or td06 turbine wheel with the 7cm^2 turbine housing to have the proper flow to merrit the 20g wheel.

 

[sLiCRiC911]

AGREE with ^^^dsm-onster^^^ the TD06 or TD06 housing is a must be carefull when purchasing.. make sure you check the wheel size on it.. deff go with the 20G thou....

 

[dsm-onster]

You mean wheel not housing, right? The 16g turbine housing is found on the FPRed turbo and is plenty for 10s. . . with the right wheel.

 

[jongreene]

Im running a 20g right now with 272's...i actually got it from jusmx141, looks exactly like the one in the picture, and i cant say enough good things about it.

the spool kicks the $h!t out of my old PTE5031 and pulls just as hard.

 

[dsm-onster]

Which turbine wheel? Makes a huge difference of whether or not it will remotely flow as much as the turbo from which you swapped when you start to get over 40lb/min.

 

[pboglio]

Only concern I have is the TD05H 20g's I've heard having early failures with the thrust bearing. Seemed to be a typical 20g failure.

Anybody with experience want to comment?

 

[dsm-onster]

That would be because of the compressor wheel inducer (which causes thrust) being too large for the turbine wheel possibly. . . ???

 

[PIMking]

HMM I just might get one of these this summer

 

[dsm-onster]

Which turbo, tdo05h or tdo6h? HUGE difference.

 

[PIMking]

I will probably go with the TDO6h model. I dont think that its such a great idea have that much meat packed into a little house.

 

[dsm-onster]

I'm not talking about the compressor wheel. The td05h turbine wheel is puny. It doesn't merrit the 20g compressor wheel.

 

[jongreene]

I have the td06...i havent pushed over 16lbs yet, but im comparing to a PTE5031 that was blown since the day i got it and was rubbing on the compressor housing.