T3 turbo , hybrid thaughts
Turbo Mini Forums

Hi lads ,
I no this has been coverd time and time again but ive been serching and found loads of different opinions but no real answer?

Im having my t3 rebuilt , is there anything else that i can have done to help things along.

Whats my max power output realisticly with this sort of turbo?

I no loads of you will say ditch it for a gt17 but ive had an exhaust made and all pipe work is sorted and i just want to get the dam thing on the road.

Any help is apreciated as usuall

Rick

Ric, usuall upgrade to a escort cosworth ar housing on the T3 dont know what size that is

the standard T3 map is optimal for 170 bhp at around 16 psi and then the efficiency starts to drop off

ask T3 tony he has T 3 ugrade

Thanks steve.

Rick

Am i right in thinking t3 tony is running 1380 ?, would that make a difference to the spool up as am just 1293

Rick

only a tad in it

ric it the escort cossy T3 exhaust housing

i stand corrected V

Is Vegard wrong??

Could someone confirm that there were 2 turbos available?
Was one a T3?

i thought sierra cosworth came with T3, but could be wrong

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

sierra cosworth 3 door, and saph were t3 same as the escort rs turbo, but escort had a smaller housing of some sort.

Escort cosworth had t34 at first then t25 later on.

Fiesta rs turbo was t2, and sierra rs 500 was a t4.

Rick

Im sure it was t3 too.

"In July 1986, a special version called the Ford Sierra RS Cosworth was launched, using a 204 hp (DIN) 2.0 L DOHC engine developed by Cosworth, with a Garret T3 turbocharger and intercooler. It was designed by Ford's Special Vehicle Engineering (SVE) group and made in Ford's Genk factory in Belgium for use in group A. It was based on a three-door Sierra with the dashboard from the Merkur XR4Ti. The car was available in only white, black or Ford's 'Moonstone Blue' and only 5545 were made.
In 1987, a 224 bhp (167 kW) Sierra Cosworth, the RS500, was sold alongside the 204 hp (152 kW) version. Only 500 were produced as the minimum number of road-going cars required to meet with newly introduced homologation racing rules, allowing it to compete in evolution form for group A racing. The car was modified by the Tickford Engineering Company in conjunction with Ford. Revisions included uprated brakes and larger brake cooling ducts and modified front and rear spoilers (a second smaller rear spoiler was added beneath the large "whale-tail"), a modified front bumper to allow extra cooling for a larger intercooler, as well as various engine upgrades including a larger turbocharger and a second fuel rail (which did not operate on road models). Race outputs were as high as 550 bhp (410 kW/558 PS), in which the Sierra dominated group A series around the world."

Edited by MikeRace on 3rd Dec, 2008.

1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.


Fibreglass Parts? - http://www.tdkracing.co.uk/
Split Rims? - http://www.force-racing.co.uk/

either way, If I was in your shoes Ric, I'd not be looking for a T3, they are so old and things have moved on since.

Team Racing

I have the 0.36 exhaust housing from the escort RS turbo and is what i recieved as a standard metro turbo from turbo technics as the smaller metro housing is no longer available for a re-con.

-MINI CLUBMAN 1380 TURBO-

If you want to get technical the escort cos was atually a form of t34 with a larger compressor housing comparted to the sierra. The A/R on the turbine housing is 0.64 - very laggy even on the YB.

There was a later model small turbo escort cosworth which had a T25.

The one you want is off the Esc RS Turbo. It is a T3 very similar to the metro unit but it has 0.36 on the turbine A/R.

I would stay away from the Sierra t3 housings as these have a different downpipe fitting to the metro/rs escort housing, you cant bolt the metro elbow to them.

Edited by cossierick on 3rd Dec, 2008.

I'm a big fan of the T25 range, I personally use a large 0.64a/r turbine housing one from a 200sx on my mini.

I dont find it noticeably laggy, I'm sure it is slightly laggier than a smaller T2 or a modern GT type turbo, but its not bad and a world away from a shitty T3.

A T25 should blow enough air for 200hp all day long, in fact thinking about it I belive a few high power people use them such as the don? (I may stand corrected if I'm wrong?)

Hi,
360 degree thrust bearing for definate!
Cossie stuff would take a week to spool on an A Series.
Go with the Escort RST exh housing if you want to stay T3.
Cheers,
Gavin :)

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What are the benefits of the RST ex housings over the normal T3 ones then?

Is it just the larger exhaust you need to conver over??

The RS Escort housing has the same 5 bolt wastegate fittings as the metro unit, so the wastegate off the metro can be moved accross and you can use the same elbow.

With the larger A/R it will be slightly laggier (far from ideal, but that is T3's for ya) But it will not get choked up at high revs.

I remember my standard metro t3 feeling choked at around 5500 and so on, with the larger housing it seemed to want to rev higher.

The T25 in my opinion is miles better though, less lag and still free as a bird to rev. I'm sure the GT range are then miles better again!

Thanks for the info, I eventually will get a more modern, better spec turbo but not just yet, the standard t3 is all on and plumbed in so i'll have a fiddle later down the line, while keeping and eye out for a cheap rst t3 to switch with!