Injected 7 port turbo
Turbo Mini Forums

Hi All,

I am currently building an injected 7 port turbo, My question is, it currently has a T3 Garrett and I would like to replace this with something a little more modern in design. Can anyone suggest an all ball bearing turbo that will spool up well on a 1330 7 port capable of supporting 220+BHP Flange not important as I am making my own equal length manifold. I would prefer an internal wastegate (for space reasons) Quality more important than price. Bottom end built for big boost.

Cheers Ant.

Sorry, to add I have read through most of the threads about turbo choice and have seen some use a T2 and also T17's But their is a lot of conflicting info on each. I was leaning towards the T17 but have since read threads saying there are better choices out there. So these are??? Thanks All

The intended use for the car might also help with turbo selection. I will be a trackday/Hillclimb car.

Search for GT2056 on here. It's not a ball bearing turbo but may be what you are looking for.

Out of interest what 7 port head are you using?

If something is worth doing, it's worth doing half of.

Sorry, to add I have read through most of the threads about turbo choice and have seen some use a T2 and also T17's But their is a lot of conflicting info on each. I was leaning towards the T17 but have since read threads saying there are better choices out there. So these are??? Thanks All

BTW Welcome to TM!

If something is worth doing, it's worth doing half of.

Woops. Its a minisport casting with turbo exhaust guides and sodium valves, Ti caps and heaps of porting work. I got the casting cheap and they are pretty rare in Australia, other than the Elder Heads but they are a bit spendy.

Cheers. Glad I found you all.

As John said the GT2056 will give you the most efficient air flow, but is not ball bearing. It should provide enough air flow for around 270hp.

You could get away with a ball bearing GT25 if you are using it in a race application and run continually at high revs, but it will not necessarily make any more power than the GT2056.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Paul, have you noticed any drawbacks to only being oilcooled? Or did you fit the T17 housing?

I've not run it yet, so I cannot comment from personal experience.

However there are a couple of guys on here who are running 200+hp with oil only cooled turbos without issue.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Thanks guys, decision made.

What about the TD04?

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

Good call Ben. Cheap as chips too.

If something is worth doing, it's worth doing half of.

look up mini13, he's running a 7 port turbo with fuel injected, very good engine build!

till it went bang....

have a look through my build and pic's below, there may be something useful

as above something in the more modern GT range should be good, a gt 17 if you want a good road drivable lump, or a 2056 if you want a top end stormer. the 22's and 25's mostly have maps biased towards larger engines that run lower boost.

Hey Mini 13,

Ive been reading most of your stuff, what ways do you think disaster could have been avoided?

I think stop trying to be flash and fit a chain would have prevented it.

In the 13's at last!.. Just

both good points and true...

anyway,

I haven't had it apart yet, so i'm just assuming its the belt that has gone as the crank turns but the rockers don't move.

I will say though, make sure you run enough guide clearance on the exhausts, as these heads seem to have a tendancy of nipping up on 2&3 exh valves, due to this i think its worth running as cold a stat as you can and convert to a front mounted rad.

or sell it and put a fiat head on.

I agree with mini13 on the stat. I run a 74 degree C stat. works fine on that. I did notice the temps would start to run away too much with the higher 82 degree C temp stats.

I dont think i'm going to run a thermostat. Leaning towards a Davies Craig Electric pump with the control module. It has some nice features like running after the engine is shut off to stop heat soak and can set the temp to anything I want. Worth a try....