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(Post Link) post #1 of 10 Old 12-04-15 Thread Starter
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Dimensions and tips for TS turbo

I need the dimensions of the biggest intercooler it can fit on 147 prefacelift.

I want to use Garrett TB2810 but i have heard that it blows if you decat.Do you know if its true?

Which glow plug model should i use?I guess 7 coldness.

How can i fit the gearbox 5speed from coupe?I think i will need jtd bell housing and gta clutch.

Is walbro fuel pumps reliable?The stock wont handle 250hp

How will i fit oil catch can,oil cooler,oil suply to turbo and return?

Thanks a lot
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with jtd bellhousing you'll need the axle support from the right axle to , also you'll need all 3 engine mounts and the jtd oil sump and dipstick.
Why not fit a 6 speed gearbox in the process? those v6 boxes will fit with the jtd bellhousing too
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What makes you think a wastegate turbo would blow if you lower backpressure?

While changing the gearbox a q2 would be a nice addition.
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Quote:
Originally Posted by Garakis147 View Post
I need the dimensions of the biggest intercooler it can fit on 147 prefacelift.
You will have to modify bumper anyway - you have to decide how much modification you'll do... Smallest would be a better question - I'd say the Giulietta QV is a good small IC

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Originally Posted by Garakis147 View Post
I want to use Garrett TB2810 but i have heard that it blows if you decat.Do you know if its true?

Which glow plug model should i use?I guess 7 coldness.
Decat will rather cool your system as cat works WITH heat. 1 point colder on the spark plug will be a good move yes if you are going 50HP+ more than OEM power.

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Originally Posted by Garakis147 View Post
How can i fit the gearbox 5speed from coupe?I think i will need jtd bell housing and gta clutch.
You will have to drill new holes in TS flywheel to mate the GTA clutch perfectly. Yes JTD bellhousing will do the trick, but then get 6 speed 2.5 internals - they work nicely

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Originally Posted by Garakis147 View Post
Is walbro fuel pumps reliable?The stock wont handle 250hp
Just move the fuel pressure regulator out from the tank to the front of the engine

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Originally Posted by Garakis147 View Post
How will i fit oil catch can,oil cooler,oil suply to turbo and return?
The grommet at the side of the TS block will expose oil flow for you, put in a 1mm restrictor as turbo does not need that much flow. Tap your own hole in the oil sump for return.

Oil catch can can be as easy as just let the breathers breathe into a plastic container with holes in it or intermediate:
https://torquepost.wordpress.com/201...-choose-build/
as intricate as these guys:
https://www.alfaowner.com/Forum/tunin...catch-can.html
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Quote:
Originally Posted by Gertie View Post
You will have to modify bumper anyway - you have to decide how much modification you'll do... Smallest would be a better question - I'd say the Giulietta QV is a good small IC


Decat will rather cool your system as cat works WITH heat. 1 point colder on the spark plug will be a good move yes if you are going 50HP+ more than OEM power.


You will have to drill new holes in TS flywheel to mate the GTA clutch perfectly. Yes JTD bellhousing will do the trick, but then get 6 speed 2.5 internals - they work nicely


Just move the fuel pressure regulator out from the tank to the front of the engine


The grommet at the side of the TS block will expose oil flow for you, put in a 1mm restrictor as turbo does not need that much flow. Tap your own hole in the oil sump for return.

Oil catch can can be as easy as just let the breathers breathe into a plastic container with holes in it or intermediate:
https://torquepost.wordpress.com/201...-choose-build/
as intricate as these guys:
https://www.alfaowner.com/Forum/tunin...catch-can.html
I dont mind modifying the bumper,i may cut it to extend the air coming in.I will fit a big universal intercooler capable for 350hp but i will run 250hp with stock internals.So i need dimensions.Τhere are 3 different sizes,550x180x6.5//550x230x6.5//550x300x6.5.
The turbo is from coupe and i have heard that decat blows seals.Thats why i am asking.
I will install fuel pressure regulator to set it on 3 bars.How will i make a fuel return line?
So the diagram for oil will go like this? Grommet>oil cooler>catch can>turbo and then return to oil sump

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No point in going too big with intercooler. It will bring you only the lag.

Rule of thumb says 50cm2 IC airflow crossection and 3l volume for each and every 100HP
(all calculated from core outer dimensions)

For example let's assume 250HP and 65mm IC core thickness.

IC core height = 250 / 100 * 50 / 6.5 ~= 19cm
IC core width = 250 / 100 * 3000 / (6.5 * 19) = 60cm

600 x 190 x 65 (mm) intercooler should be fine

Last edited by yan.ko; 14-04-15 at 10:19.
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Quote:
Originally Posted by Garakis147 View Post
I will install fuel pressure regulator to set it on 3 bars.How will i make a fuel return line?
So the diagram for oil will go like this? Grommet>oil cooler>catch can>turbo and then return to oil sump
There is fuel return line already on the fuel rail - use that...
Oil catch can I thought was on the ventilation part from the top of the head to the intake manifold... no catch can needed in actual oil path. Oil path is:
Grommet -> flow restriction -> turbo -> return to oil sump.
Oil cooling is a different circuit : that can be done by getting a different sandwich adapter, cooler and piping instead of that heat exchanger at the oil filter:
http://aamcompetition.com/images/F17566946.jpg
But get something with a thermostat - you don't want to run too cold
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Quote:
Originally Posted by yan.ko View Post
No point in going too big with intercooler. It will bring you only the lag.

Rule of thumb says 50cm2 IC airflow crossection and 3l volume for each and every 100HP
(all calculated from core outer dimensions)

For example let's assume 250HP and 65mm IC core thickness.

IC core height = 250 / 100 * 50 / 6.5 ~= 19cm
IC core width = 250 / 100 * 3000 / (6.5 * 19) = 60cm

600 x 190 x 65 (mm) intercooler should be fine
I see.Thanks a lot for your advise.I cant find one in this dimensions so i will go 550x230x6.5

Quote:
There is fuel return line already on the fuel rail - use that...
Oil catch can I thought was on the ventilation part from the top of the head to the intake manifold... no catch can needed in actual oil path. Oil path is:
Grommet -> flow restriction -> turbo -> return to oil sump.
Oil cooling is a different circuit : that can be done by getting a different sandwich adapter, cooler and piping instead of that heat exchanger at the oil filter:
http://aamcompetition.com/images/F17566946.jpg
But get something with a thermostat - you don't want to run too cold
Thanks a lot mate.I will meet my mechanic on saturday and we will talk about the project and which parts we will use.Unfortunatly it wont be on road until August,mainly because of economical reason.I dont want to buy fake or broken parts.
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(Post Link) post #9 of 10 Old 02-05-15 Thread Starter
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The project is going strong.I will use a turbo from subaru impreza wrx td04l-13t which is oil and water cooled.Will watering cooling may be a problem?What will i need?
Also i cant find one degree cooler sparks.Can someone provide me a link or a code?
Does anyone know from which car will injectors fit?Stocks wont provide 240hp.

Last edited by Garakis147; 02-05-15 at 07:32.
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Volvo S40 T4 (314cc) injectors will work:

https://www.alfaowner.com/Forum/attac...9&d=1414607606
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