:) turbo help please

[joe-gti180]

Hi guys,

Right, i dont want to bore you so will keep it simple.

I have used the search before people tell me lol, but can not find direct anwsers to my questions.

I might sound daft but here goes lol

I have most things to turbo my vts but need to know a few things before i start the build.

Questuins.

1, want thinkness do i need a decomp with normal head without any skimming and is it best to run it with a head gasket to?

2, people talk about getting 8-10 psi or different figures, wot determins the psi and can you turn it up and down using a button or do you get the psi figure from wot you do to the engine?

3, pepole talk about a water feed and reurn, wots this for amd do i need it?

4, do i need to run cat turbo cams and if i do would it be better and give me a better bhp?

5, I have got so far.

gt25 turbo
dp mani
intercooler and pipework
bigger injectors
oil feed line
modified sump for return.
standalond ecu

looking/need to get?:

turbo cams
dump valve

please any help would be great and please let me know if i need anything else i have missed.

Thanks joe

[RustySkull]

Questuins.

1, want thinkness do i need a decomp with normal head without any skimming and is it best to run it with a head gasket to?

I'm not sure on thickness but you do need a gasket.


2, people talk about getting 8-10 psi or different figures, wot determins the psi and can you turn it up and down using a button or do you get the psi figure from wot you do to the engine?

If you run a boost controller you can change the boost as you want, if you don't run any boost control then the boost will stay at it is when you first set it up.


3, pepole talk about a water feed and reurn, wots this for amd do i need it?

If your Turbo is water cooled (Which it is) It will need a water line to cool it, this comes from your engine coolant pipe or radiator.


4, do i need to run cat turbo cams and if i do would it be better and give me a better bhp?

You don't need turbo cams but you will be better off with them, and if you want to run big boost for big power also forged pistons are needed.

5, I have got so far.

gt25 turbo
dp mani
intercooler and pipework
bigger injectors
oil feed line
modified sump for return.
standalond ecu

looking/need to get?:

turbo cams
dump valve

please any help would be great and please let me know if i need anything else i have missed.

Thanks joe


I answered what I can think of, can't wait to see as you start the build :)

Good luck :)

[joe-gti180]

Thanks mate big help. Were do you connect the boost controller to and wot does it turn up and down to get different psi readings? Sorry. I know a lot about cars and engines but turbos are new to me and I am trying to learn as I will be doing it all myself. Thanks again Joe

Sent from my HTC Sensation Z710e using Tapatalk 2

[RustySkull]

Thanks mate big help. Were do you connect the boost controller to and wot does it turn up and down to get different psi readings? Sorry. I know a lot about cars and engines but turbos are new to me and I am trying to learn as I will be doing it all myself. Thanks again Joe

Sent from my HTC Sensation Z710e using Tapatalk 2

I run a Manual Boost Controller on my RS, that manually adjusts boost with a gate valve that you adjust from under the bonnet.

The boost is the Pressure from your Turbo.

If you run an electrical boost control which is a bit more technical, that is a control pad which you have in your car and that adjust the boost electrically using solenoids.

I suggest you go on YouTube, there is loads of Video's which can explain what you will need to know better than I can through writing it. :)

You'l need to learn about Waste Gates, Vacuum, internal and external waste gates, dump Valves, how Turbo's work and how to use them.

:)

[Wee_monkey1987]

just out of interest joe-gti180 how much have you spent on what you have so far?

[joe-gti180]

I run a Manual Boost Controller on my RS, that manually adjusts boost with a gate valve that you adjust from under the bonnet.

The boost is the Pressure from your Turbo.

If you run an electrical boost control which is a bit more technical, that is a control pad which you have in your car and that adjust the boost electrically using solenoids.

I suggest you go on YouTube, there is loads of Video's which can explain what you will need to know better than I can through writing it. :)

You'l need to learn about Waste Gates, Vacuum, internal and external waste gates, dump Valves, how Turbo's work and how to use them.

:)

Thanks mate I will do.

Sent from my HTC Sensation Z710e using Tapatalk 2

[joe-gti180]

I have been wanting to turbo a saxo vts for years but every thing to do it costs a fortune, I sold my 206 gti 180 last month and so now I have space for a vts again. Keeping my eye out as I want a white one with a good shell. Not bothers about engine as I have one I am building up to put it the car.

Basicly I have been really lucky and patient, and sourced everything mainly off eBay for around 400. Still need to get a few bits including a custom map so still need to spend 1k still I bet. Lol
But I will save a lot my doing it all myself. Carnt wait till I het it finished.

Sent from my HTC Sensation Z710e using Tapatalk 2

[e8_pqck]

gt25 turbo
dp mani
intercooler and pipework
bigger injectors
oil feed line
modified sump for return.
standalond ecu

looking/need to get?:

turbo cams - use standard cams
dump valve

you will also need:
Uprated clutch and cover
Need to block off all the breathers on inlet as it is pressurised
Micalore clamps for intercooler pipes
Reducer to fit pipes to throttle body
water pipes and reducers for water cooling turbo
Brackets and way to fix intercooler
Well your exhaust cope?
Didn't see a downpipe in your list
Does the ecu have internal map sensor?
Boost gauge
Oil tee for restrictor
Oil cooler and pipework
I'd use a oil temp gauge
boost control - go electric
Budget for oil, get good quality so another £50
Anti freeze
lower temp spark plugs
New head bolts
head skim
Check valves and lap if required
Stem seals no doubt..
I used two 1.77 hg
will air filter fit turbo?
Tie wraps (essential!) Lots of!
Various screws bolts and fixings
Mapping

Off the top of my head...

[e8_pqck]

I'd also look at fuel pump and make sure the rad is up to the job
gaskets for turbo and downpipe etc
gearbox oil when you fit new clutch
vacuum hose and clips

what injectors are you using?
does your oil feed have a restrictor?
what size intercooler pipework? do you have a reducer from turbo?
actuator fitted to turbo?

[RustySkull]

gt25 turbo
dp mani
intercooler and pipework
bigger injectors
oil feed line
modified sump for return.
standalond ecu

looking/need to get?:

turbo cams - use standard cams
dump valve

you will also need:
Uprated clutch and cover
Need to block off all the breathers on inlet as it is pressurised
Micalore clamps for intercooler pipes
Reducer to fit pipes to throttle body
water pipes and reducers for water cooling turbo
Brackets and way to fix intercooler
Well your exhaust cope?
Didn't see a downpipe in your list
Does the ecu have internal map sensor?
Boost gauge
Oil tee for restrictor
Oil cooler and pipework
I'd use a oil temp gauge
boost control - go electric
Budget for oil, get good quality so another £50
Anti freeze
lower temp spark plugs
New head bolts
head skim
Check valves and lap if required
Stem seals no doubt..
I used two 1.77 hg
will air filter fit turbo?
Tie wraps (essential!) Lots of!
Various screws bolts and fixings
Mapping

Off the top of my head...

This is a good list of bits that you will need!

If you are doing a good build I'd say get some low comp forged pistons instead of a decomp plate!

[AXracing]

1, want thinkness do i need a decomp with normal head without any skimming and is it best to run it with a head gasket to?

Really depends on things like the boost you are looking to run. Many people have run over 200bhp by simply running two repair gaskets and no decomp plate at all.

2, people talk about getting 8-10 psi or different figures, wot determins the psi and can you turn it up and down using a button or do you get the psi figure from wot you do to the engine?

The turbo has a valve on it often called a gate that opens at a given pressure. Whatever this valve is set at is what the turbo will try to run at. Though the boost you will actually get depends on many other factors.

3, pepole talk about a water feed and reurn, wots this for amd do i need it?

Most modern turbos are water cooled. This is why they require the water feed. You can just take this off the engines water cooling system. Though i have seen people use electric pumps to feed the turbo. Both methods are fine.

4, do i need to run cat turbo cams and if i do would it be better and give me a better bhp? No if anything the standard cam is actually a very good cam to use. Again people have run huge power on standard cams. If you you go down the turbo system of tuning you will soon see that its actually how strong parts are, how good your cooling is and how well you can control fuelling and ignition that limits your maximum power and not the engine breathing.

[joe-gti180]

gt25 turbo
dp mani
intercooler and pipework
bigger injectors
oil feed line
modified sump for return.
standalond ecu

looking/need to get?:

turbo cams - use standard cams
dump valve

you will also need:
Uprated clutch and cover
Need to block off all the breathers on inlet as it is pressurised
Micalore clamps for intercooler pipes
Reducer to fit pipes to throttle body
water pipes and reducers for water cooling turbo
Brackets and way to fix intercooler
Well your exhaust cope?
Didn't see a downpipe in your list
Does the ecu have internal map sensor?
Boost gauge
Oil tee for restrictor
Oil cooler and pipework
I'd use a oil temp gauge
boost control - go electric
Budget for oil, get good quality so another £50
Anti freeze
lower temp spark plugs
New head bolts
head skim
Check valves and lap if required
Stem seals no doubt..
I used two 1.77 hg
will air filter fit turbo?
Tie wraps (essential!) Lots of!
Various screws bolts and fixings
Mapping

Off the top of my head...

Thanks for all your help guys, it putting my in in the picture more now.

Just need to know:

wot a Oil tee for restrictor is and wot it does.

and i have a emerald ecu not sure if it has a internal map sensor. do i need one.

Can i run a turbo with the standerd map sensor then?

I have a downpipe just need a custom exhaust making when the engine is fitted.

[joe-gti180]

I'd also look at fuel pump and make sure the rad is up to the job
gaskets for turbo and downpipe etc
gearbox oil when you fit new clutch
vacuum hose and clips

what injectors are you using?
does your oil feed have a restrictor?
what size intercooler pipework? do you have a reducer from turbo?
actuator fitted to turbo?

Wot is this mate

(does your oil feed have a restrictor?)

[joe-gti180]

Wot is this mate

(does your oil feed have a restrictor?)

I know know wot this is and i do have one already. :):y: