I have no clue of things >4 cylinders. How is a 20G TD05 on an inline 6, 3.0L? Is it like a mildly sized turbo? Small? Or large?


Will race for food

..check out my miscellanous mods

It's about 2G bigger than a 18G turbo... and maybe 4G or so bigger than a 16G turbo.

Sorry, man I couldn't resist.

that would be small.....imo. well between small and medium sized....



2000 Camaro V6.
| SLP Loudmouth | CAI Intake | HID's |

this isnt making sense to me. why would a inline 6 turbo be small on a 4?

I mean, I know that they make them smaller on factory to reduced lag and increase drivabiltiy, but still thats a whole nother 2 cyls. thats alot more cfm being pushed.


"boobs now with Riboflabin"

Turbo: 16G "Small" / 16G "Large" / 18G / 20G
Compressor Wheel: 16G / 16G / 18G / 20G
Inducer Diameter (in): 1.830 / 1.892 / 1.900 / 2.070
Exducer Diameter (in): 2.365 / 2.680 / 2.680 / 2.680
Compressor Housing: 16G / 16G / 18G / 20G
Turbine Wheel: TD05H / TD05H / TD05H / TD05H
Exducer Diameter (in): 1.930 / 1.930 / 1.930 / 1.930
Inducer Diameter (in): 2.200 / 2.200 / 2.200 / 2.200
Turbine Housing: 070 - 7cm / 070 - 7cm / 080 - 8cm / 070 - 7cm
Flow Capability: 505 CFM @ 15 psi / 550 CFM @ 15 psi / N/A / 650 CFM @ 15 psi


There, I tried to find all the "real world" size info I could on a couple different TD05 turbos. I can't say I know much about turbos, but the website I found this information on appeared reliable. Hope it helps ya!

A 20G is not small. On a 2.0 Litre its a BIG turbo, it won't even spool until about 3800 rpm, full boost at about 4500 rpm.

Typical factory turbo on a 2.0L I4 would be a 13G, 14B, or small 16G. Big 16Gs are an upgrade, 18G even more so, and a 20G pretty much just fro drag applications. In Greddy terms it would be bigger than a T4.

The TD05 housing is typical though. Interesting that a 20G compressor would be in a TD05 housing.. Are you sure it''s a 20G?

Follow this link to get an idea.. Unless you are looking to make 500HP or so, you likely don't want that turbo.

http://www.hahnracecraft.com/hahn/parts/turbo%20efficiency.htm

PAX

I should clarify.. If you don't mind poor low-end response, that could be the turbo for you.

PAX

I think you guys are getting the wrong idea, I was asking about this turbo for a 6 cylinder...I know it's pretty big for a 4 cylinder. Wondering what the estimated sizing is for a 6 cylinder with a 20G...is this big or small or medium for this size of engine?

Sorry for the mixup.


Will race for food

..check out my miscellanous mods

What kind of set up are you going for?

It all depends on the system its going into. An 18G and 20G are pretty common upgrades in the subie world. Both will net a very noticable upgrade from stock.

The best way is to examine the system from a whole. You can have the largest turbo in the world, but if its not spooled untill 6k rpm, its not really going to do you much good for everyday use.

It's a 1989 toyota Supra turbo, TD05 20G. The engine is a 1JZ, 3.0L inline 6 cylinder. What relative size is this for this size of engine? If I stuck a T25 on a V8, I'd know that was really small. If I put a T66 on my sunfire, that'd be way too big. What relative size of turbocharger is this for this car? Is it about right sized? Small? Large?

Thanks.


Will race for food

..check out my miscellanous mods

im not at all a turbo expert but i think a 20g would be perfectly fine on a 1jz

Quote:

I have no clue of things >4 cylinders. How is a 20G TD05 on an inline 6, 3.0L? Is it like a mildly sized turbo? Small? Or large?

i plan on upgrading my 16g to my 20g really soon. 20g depending on trim can make up to 500hp . its a decent sized turbo, but still maintains a decent spool time.

500 HP from an I6 doesn't sound small to me

Size is relative.. It is not undersized for that engine if that's what you mean. Ask yourself.. "How fast do I want to go?" When you answer that, you'll know if that is the right turbo for you.

PAX

I am real basic at this turbo thing, as I am just starting to delve into that world, but I was reading that 20G is the size of the housing. It's the ration between compressor and turbine wheels that dictates how quickly and how much boost a turbo puts out. You just have to find the right combination of compressor/turbine to suit your application. Obviously the bigger the housing, the bigger the potential for pushing more air, but you get the drift. Check out...

A lot of good turbo knowledge on TurboClub.com




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