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Wallace
31-05-2014, 17:37
Looking at up grading my turbo

Considering a full T25

When would you expect this to start coming on boost?

What spec would people recommend? (360 bearing??) as I don't really know what I'm talking about when it comes to the internals of the turbo.

I obviously want to up the bhp, but am also considering the driving factor and at present the T 2 comes on boost to early for my liking, particularly motorway driving!

I'm open to suggestions as I'm not power figure chasing, and I'm obviously aware that I'll need to upgrade intercooler and fueling etc.....

R5MJH
31-05-2014, 17:50
Mike's got a full t25 which has the.49 rear and it pulls hard at 15psi mate, he's got a cam but it starts coming on boost about 32/3500 rpm and you can drive on the motorway at 70 not on boost boss:agree:

James5
31-05-2014, 18:04
I have a similar setup with a turbo technics stage 2 t25 with a 360 bearing std cam and boost comes in around the same as r5mjh I am running at 1.3 bar at present

Wallace
31-05-2014, 22:10
Cheers guys,

Boost coming on at around 3/3500 sounds good:agree:

With regards to other spec: .49 etc

What do these actually mean, im assuming its the sizes of the compressor & exhaust housing

But is the greater the number meaning larger? And potentially slow spool up?

Goobie
31-05-2014, 22:25
But is the greater the number meaning larger? And potentially slow spool up?

Yes and usually but not always. :agree: :laugh:

Wallace
31-05-2014, 22:28
So really then, as im not figure chasing

A stock T25 with 360 roller bearing would do the job?

And where is recommended to buy from?

Markey Mark (BD)
31-05-2014, 22:59
Full T25 with T2 rear housing fitted :agree:

Be ideal for you Wallace ;)

Wallace
31-05-2014, 23:17
Full T25 with T2 rear housing fitted :agree:

Be ideal for you Wallace ;)


Oh f**k Mark youve thrown another question in the mix:laugh:

So a full T25, can still be a full T25, but with a T2 exhause housing:scratch::D

Markey Mark (BD)
01-06-2014, 08:46
Oh f**k Mark youve thrown another question in the mix:laugh:

So a full T25, can still be a full T25, but with a T2 exhause housing:scratch::D

Yeah, the turbo itself will be a T25 (core, wheels and compressor housing) to what ever spec you choose but you have a T2 rear housing machined to fit

Matt_S
01-06-2014, 10:28
Yeah, the turbo itself will be a T25 (core, wheels and compressor housing) to what ever spec you choose but you have a T2 rear housing machined to fit

Surely that's a T2 hybrid?

Markey Mark (BD)
01-06-2014, 10:31
Surely that's a T2 hybrid?

No because the core of the turbo is T25, in the theory your basically fitting a T2 housing to a full T25 off a Tomcat for example

If you had T2 core, rear wheel and exhaust housing and then T25 compressor and wheel then that would be a T2 hybrid as your modifying the T2 turbo
Could also call that a T2/T25

Matt_S
01-06-2014, 10:35
Yeh, when you put it like that...

Wallace
01-06-2014, 15:15
Yeah, the turbo itself will be a T25 (core, wheels and compressor housing) to what ever spec you choose but you have a T2 rear housing machined to fit


:agree:

Wallace
01-06-2014, 15:15
Any recommendations peps on where to purchase said turbo??

Markey Mark (BD)
01-06-2014, 15:17
Any recommendations peps on where to purchase said turbo??

CR Turbos or Turbo Dynamics I would say :agree:

Wallace
01-06-2014, 15:19
Cheers Mark,

I'll spk to CR turbos then cause I'm sure Jon (Casper) has had dealings with them!

rs250nut
01-06-2014, 17:16
CR Turbos or Turbo Dynamics I would say :agree:

Cr turbos are nice people to deal with, turbo dynamics not so much.

Wallace
01-06-2014, 21:50
Cr turbos are nice people to deal with, turbo dynamics not so much.


:agree:

evogill
01-06-2014, 22:38
cr turbo...iv just purchased one last week. should arrive in next couple of days. excellent people to deal with. call you when they say and if they have any issues. £612 , sent my old one in, but it was completely shot, so it was £50 0r so more expensive for t25/t2 delivered. mark recommended it as hes doin my engine. that's with 360 bearing

casper
02-06-2014, 17:34
Hi Alex.My t25/t2 was built by cr turbo.It has a 55 trim comp wheel and a tb22 turbine wheel in a 47 t2 ehaust housing.19lb of boost with standard internals gives just short of 180hp.I have just bought a tomcat with a 360 thrust bearing etc so will be running the same boost on t:agree:hat soon.

Wallace
03-06-2014, 19:43
Hi Alex.My t25/t2 was built by cr turbo.It has a 55 trim comp wheel and a tb22 turbine wheel in a 47 t2 ehaust housing.19lb of boost with standard internals gives just short of 180hp.I have just bought a tomcat with a 360 thrust bearing etc so will be running the same boost on t:agree:hat soon.

Thanks for that Jon:agree: