The Turbocharger thread

[dannygti]

Thought it would be a good idea to create a thread that will help people talk turbos and get help choosing the right one. Try and get some useful stats, dimensions, specs of all different turbochargers along with dyno plots to compare specs etc.

More and more people are now turbocharging so this will hopefully get the right input to help people.

So let's get it started..
This is my dyno plot with a TD05 big 16g with 8cm2 t25 housing at just 6psi



Think it's as smooth as you will get but it's a fairly large turbo so will be a smoother delivery at low boost

Any questions?

[gazza808]

How do you find the td05?
I'm thinking about fitting the evo 10.5 td05 I've got sitting about on my gti, and keeping the twin scroll setup,
Worked excellent on the 2litre I had it fitted too just wondering about it on a little 1600,

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[dannygti]

The td05 isn't too bad, especially considering it's not a ball bearing turbo.

What is you turbo off? What model evo?

The 10.5 housing would be a little big imo but if it's the TM evo 6 turbo the have a Titanium turbine wheel and with the twin scroll it could work well.. If it's a 8 or 9 turbo I'd expect it to be a little laggy but will flow 400hp so it depends what your target power would be?

[Chris_O]

Glad this thread has just popped up, just started getting bits and pieces together for my low boost budget set up. What cheapish turbo (looking to pay around £150) would be ideal for a low boost set up? Standard internals obviousy as well

Edit: looking to run approx 180-190 bhp

[dannygti]

Originally Posted by Chris_O

Glad this thread has just popped up, just started getting bits and pieces together for my low boost budget set up. What cheapish turbo (looking to pay around £150) would be ideal for a low boost set up? Standard internals obviousy as well

Edit: looking to run approx 180-190 bhp

I'd personally look at buying a k03/k03s or gt17 if it were me

[blackie_2k5]

Gt17 would be starting be work hard on a vtr to make 190imo

Ko3s would be a good shout, even a ko3 but that might be running highish aswel for 190

Excellent for 16v wanting 190 though

[saxostuart]

is the gt17 the sabb turbo setup some people have done?

[gazza808]

No idea what model it's off, I bought it on a whim off ebay lol,
It's deffo not a tm edition one though,
Was super responsive on my old engine was making 14psi (max boost) by 3000rpm, target power is.. What then engine will take, going to keep winding in the boost till I feel it's enough, or some thing gives. Spose will find out once it's fitted and I get mapping.

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[blackie_2k5]

Originally Posted by saxostuart

is the gt17 the sabb turbo setup some people have done?

Lots of diff specs of every turbo named samed thing, but yeah lots of ppl use the Saab one,

The cituning spec gt17 on actuator pressure will probs make about 160bhp on a vtr

To make it hit 190 probs need about 14psi or 1bar, which is gonna b
Run quite hot I'd have thought,

[Chris_O]

ok cheers for that. Is the ko3 off a golf??

[Chris_O]

Originally Posted by blackie_2k5

Gt17 would be starting be work hard on a vtr to make 190imo

Ko3s would be a good shout, even a ko3 but that might be running highish aswel

Will be on a vts mate

[blackie_2k5]

Originally Posted by Chris_O

Will be on a vts mate

Sorry dude I'm on iPhone I thought it said vtr on your Dp thing


Edit- in which case all 3 would be ideal

Edited the above aswel

[dannygti]

Originally Posted by blackie_2k5

Gt17 would be starting be work hard on a vtr to make 190imo

Ko3s would be a good shout, even a ko3

Theres 2 sizes as far as I'm aware, the bigger one will flow 190 easily. If that's his target then it's a perfectly suited turbo.

Originally Posted by saxostuart

is the gt17 the sabb turbo setup some people have done?

Yep, as said.. There are a couple of variants.

Originally Posted by gazza808

No idea what model it's off, I bought it on a whim off ebay lol,
It's deffo not a tm edition one though,
Was super responsive on my old engine was making 14psi (max boost) by 3000rpm, target power is.. What then engine will take, going to keep winding in the boost till I feel it's enough, or some thing gives. Spose will find out once it's fitted and I get mapping.

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Have you got a picture? It will be responsive on a 2.0 conpaired to 1587cc but I think with a twin scroll setup would improve things.

Depends what the rest of your spec is really.

[Chris_O]

http://www.ebay.co.uk/itm/Saab-9-3-9...item45f5d2d4bb

So you rekon this? Is this is a decent price?

[blackie_2k5]

Originally Posted by Chris_O

http://www.ebay.co.uk/itm/Saab-9-3-9...item45f5d2d4bb

So you rekon this? Is this is a decent price?

Rorz_vts has a cituning spec gt17 for sale for about £100 on here mate

[Chris_O]

Originally Posted by blackie_2k5

Rorz_vts has a cituning spec gt17 for sale for about £100 on here mate

hmmm cheers for that, he will be getting pm

[saxostuart]

complete turbo beginner, so excuse my ignorance......with say the ko3 or gt17 etc are all the flange sizes different, if so what manifold would you need, and how do you go about turbo positioning angle etc..

[saxostuart]

and for example if you use a sabb gt17 do you use parts of the sabb manifold

[dannygti]

A lot of the flanges are different, it's unreal how many different housing/compressor combos there is..
I personally wouldn't like to adapt a standard cast manifold so I would have a manifold made or make one using the correct flange which can be bought off eBay or exhaust company's etc. The turbo will need to be positioned so everything works I.e.. Downpipe has space, inlet doesn't foul block, oil drain is above sump, boost pipes can be routed etc etc.

[tweeqd]

i had a T2 exhaust housing from an R5 turbo and a T25 inlet from a saab turbo, that would be on full boost by 2k and pull up to 7.5, would easily make 200bhp at 1 bar