TD05h upgrade to 20g? Or TD06h?

[AshTsi]

Okay guys, heres where im at. i'm looking to upgrade my turbo. I've been looking around for a 20g (simply because its a bolt on). There are a million threads on the td05h and the td06/ 06h. From my understanding the differences between the 05h 20g and the 06h 20g are like the small 16g and the big 16g. faster spool with the smaller with less top end, the opposite for for the bigger turbo.

Where my questions really start is, I have seen this td05h upgrade compressor kit which comes with a different housing and wheel. so what im wondering is what all does this accomplish? of course you get a different wheel and housing, but does this bolt onto say a small 16g? what all do i need to make that work and does it really make that much of a difference? would it compare to a real 05h 20g?

eBay Motors: DSM TD05H TD06 20G turbo turbocharger compressor Kit (item 120130533488 end time Feb-05-08 07:41:12 PST)


Next topic is, minus fuel upgrades. would going with the td06h make that much of a difference to where it would be to much for my setup? My car is a daily driver, and i dont want to go too over board, But if i'm going to upgrade i would like to get the most bang for my buck with what i have to spend. So, opinions please?

 

[rb25det510]

i have a td05 20g. i have been told that i would have been better off with a td06, i dont remember exactly why but maybe someone can chime in and explain why. better top end?

 

[JusMX141]

You're on the right track, for sure; however if you want a true "upgrade", then go with the TD06 or TD06H 20G.

Converting your existing turbo into a 20G isn't as easy as simply bolting on a new compressor wheel....the backplate of the 20G wheel is much bigger, and you'll have to have the turbo's center housing machined to accept the new wheel.

As far as gains are concerned- we swapped an EvoIII 16G to a TD05H 20G on my buddy's 2G recently (he's now running a Frank 5 20G with a Garrett E60 compressor and a TD06H turbine). The car still had the same punch down low and the difference was quite noticeable in the midrange to top-end; the car was also definitely quicker down the 1320 with the TD05H 20G than with the EvoIII at the same psi, but I don't feel it wasn't enough of an upgrade to go out and buy a different turbo.

Now going from the TD05H 20G to the Frank 5 20G is another story....the difference is night and day.

 

[ScottH]

The th05h 20g is a very stout turbo bar none. My buddy Dave (Tort to some of you) has went 11.0@126 on this very same combination. He then switched to a td06h and said it gained on the top end as expected but he never duplicated or beat his td05h times...

 

[_DeS_]

Just don't do anything twice! Don't upgrade it to a tdo5h now and regret it later. I have a bushur td06h 20g that I have no complains(although I'm selling it now ) Just sell what you got and get a td06h. It'll be worth it.

 

[brute]

Here's a link to read up on some first-hand experiences with both:

20g - Where's the fast ones

 

[JusMX141]

The only complaint about the TD05H 20G is turbine efficiency at higher boost levels (the compressor wheel is pushing more air than the turbine can handle). Nothing a clip can't handle!

 

[AshTsi]

Between the Td06 and the Td06h Is the difference just the wheel? Can a Td06 be turned into a Td06H, and what all would that require?

 

[JusMX141]

As you can see in this thread I started a while ago, the difference isn't enough to worry about swapping from a TD06 to a TD06H. They have their differences, and the TD06H is proven to flow better, but not by much.

http://www.dsmtuners.com/forums/tur...e-td06-vs-td06h-turbine-photo-comparison.html

 

[AshTsi]

I actually have seen that thread multiple times. i noticed that the Td06 wheel looks pretty worn. just from guessing it looks like they are almost the same if the Td06 was in the same condition as the new Td06h wheel. I was also wondering if there was a difference in hosuing too. but if there isnt enough of a difference to make a HUGE difference i guess it comes down to what i can get at the best price. Thanks for clearin that up for me

 

[JusMX141]

There wasn't much wear at all on the TD06 wheel....it would've been used if it hadn't been damaged in shipment. I should've media-blasted it before I took the photos, but it getting scrapped so I didn't think it was worth blasting.

Basically what I wanted to show with the photos is exactly what your naked eye is telling you....they're practially the same. The steeper inducer vs. exducer height is noticeable on the TD06 (the length of the front edge of the blade is much shorter than the TD06H), and the TD06H has a slightly wider blade and is a tiny bit bigger overall.

Worth the upgrade? You be the judge!

 

[AshTsi]

Thanks For the input. It's really sent me in the right direction. Just by looking at the pictures it just looked to me that the Td06 wheel was a little worn, it looked like some of the blades had been broken. As far as flow concerning both turbos, what are the differences?

Now going from the TD05H 20G to the Frank 5 20G is another story....the difference is night and day.

Also, what would we be looking at differences between the "Frank 5" 20g vs. TD06H? I searched for it in the forums and there are a million different "Frank" combo's. none of the threads really mentioned much about them other that what jusmx141 said.

 

[JusMX141]

Also, what would we be looking at differences between the "Frank 5" 20g vs. TD06H? I searched for it in the forums and there are a million different "Frank" combo's. none of the threads really mentioned much about them other that what jusmx141 said.

Turbochargers.com experts in turbos, superchargers, dyno tuning, turbo manufacturing, and rebuilt turbos.

The chart at the bottom gives you an idea of the differences. A Frank level 5 uses the 20G compressor cover with the 3" inlet (same as an FP Green.) The cover is machined to accept a Garrett 60trim compressor wheel, then mated to TD06H turbine.

He's currently set at 18psi for the winter, but as soon as spring rolls around the boost is going to 25psi on a quest for an 11-second timeslip from a full-weight 2G on pump gas.