educate me on turbo compressor models

[alwayz_yummy]

ask ko lang, since nag-parang top-overhaul na ako sa 2C-tubo ng liteace ko, sinilip ko ung compressor ng turbo, nakasulat ay T12.

ask ko po specs ng T12 compressor kung may nakakaalam..kung papalitan ko ng bigger compressor(kung lalagyan ko ng intercooler sa susunod) anung model ang pwede kong i-bolt-on swap sa T12 compressor??

for reference lang din po.

thanx!

[HyBrideVo]

Here's what i found i think they're made by Garrett Turbo Inc.

T12 Turbo

[alwayz_yummy]

thanx...its a good start.....hope more will come in..

[4JGtootsie]

Higher compression = Higher temperature

therefore mag ooverheat ka

kidding aside.

Kailangan kaya paikutin ng exhaust pressure yung compressor para mapaikot niya yung turbine. I think they have calculated it according to the specs of your engine. Kung naka supercharger ka belt or chain na ang driving force so ibang calculations na iyon.

[rion]

wala po akong alam tungkol sa mga models, but I think bigger Turbo is not the solution.

"Using a small turbocharger will give quick response and low lag at low to mid RPMs, but can choke the engine on the exhaust side and generate huge amounts of pumping-related heat on the intake side as RPMs rise. A large turbocharger will be very efficient at high RPMs, but is not a realistic application for a street driven automobile." - wiki

"Best way to understand is imagine a little desk fan on high speed vs. a Big floor fan on low. Problem is if you are using a floor fan it takes time to get it up to speed. Big turbo means big peak power but may sacrafice drivability and responsiveness." -evolutionm.net

Turbo is driven by your exhaust, if your turbo is bigger, you need to rev it higher to get more pressure from the exhaust...

that's why some racing cars use two small turbos (twin turbos)...

the solution is to add pressure in your existing turbo...

but check your turbo's condition first, baka it needs shafting...

there is a particular max psi on 2c-t. but I forgot, I'll look it up soon...

[alwayz_yummy]

nacurious lang ako sa model ng turbo compressor na nakalagay,e... T12, parang di common, like tb04,etc...

[mbeige]

If you want good power, use twin turbos. But use a smaller turbo to minimize turbo lag of the larger turbo. The smaller turbo will spin faster, hence less lag than the larger one. Once it spools up, it occupies the turbo lag at low speeds, and then the large turbo kicks in and you can get linear power, unlike what you get now na biglang sisipa yung turbo.

The specs of the T12 given are mostly dimensions, torque specs when rebuilding one, clearances, tolerances, etc. You cannot say it will add so and so HP because that depends on the engine set up you have.

On my car I have a Garrett turbo rin but I don't know yet the name (w123 300D turbodiesel Mercedes). The wastegate is adjustable so you can adjust the maximum boost pressure before it releases it. That is one thing you should know about yours para ma-maximize mo yung potential ng turbo mo.

Here are some good reads on turbocharger wastegate adjustment on the Garrett models if yours is similar (or identical)...

http://diymbrepair.com/easley/wgate.htm

http://www.mercedesshop.com/shopforu...d.php?t=114337 (long read but very informative)

[alwayz_yummy]

eto some shots ng turbo na nakakabit, share ko lang.. gusto lang din kasi malaman ung rated output psi nito, at kung small/"at-par"/big compared sa other common turbos...





is this the EGR/actuator?



ganito original kabit nyan when looking at the back-side ng engine:

(top pic is located on the left, turbo on the right)

[mbeige]

You can hook up a vacuum/pressure gauge to the turbocharger by looking for an output nipple somewhere on the intake manifold. This usually has a sensor that goes to the ECU or to a device that limits boost pressure para hindi sumobra. I'm not familiar with your plumbing set up but on the last pic it looks like the EGR is on the left, the intake manifold is the tube above going across, and the EGR tube from the exhaust goes to the back of the engine to the exhaust manifold. Like you said the turbo is on the right where the exhaust is, which sounds about right.

[alwayz_yummy]

plumbing ng air-intake nito ganito->

air filter->(plastic piping infront of the big steel one you see in the pic)->turbo-(ung big steel piping you see in the picture) and <ung small steel piping leading to the EGR(show in the 2nd to the last pic)>

hanapin ko po yung sinasabi po nyu, gusto ko pakabitan din kasi boost guage,e... pero havent heard any "hiss/pssst" when boosting,e....

[mbeige]

You should not hear the pressure being relieved, unless you have a leak somewhere. The cars are normally released from factory na walang tunog na ganyan.

The best place to put tap the boost is on the intake manifold. When the turbo pushes air into it, dun siya pinakamalakas ang boost other than the turbo itself, before going into the engine for combustion.

After the air filter, it goes to the turbo. But after the turbo, it goes to the intake manifold, then to the intake plenums to each individual cylinder. From there out it goes to the exhaust, and back to the turbo to spin the turbine, and through the wastegate valve if ever man sumobra, then out the exhaust mismo.

http://www.beesandgoats.com/boostfaq/g2icturbo.html

Sample image of the wastegate attached to the turbo:

[alwayz_yummy]

so ok pala, stock engine kasi to,e..may actuator/lever ngang ganyan nakita ko, malapit sa exaust manifold, verify ko tomorrow..

diba sa wastegate actuator nilalagay yung washer?

[rion]

no doubt, that's the EGR.



it has been a debate that EGR hurts performance...

diba sa wastegate actuator nilalagay yung washer?

yep, the purpose is to make the lever move a bit...

your dashboard has a overboost warning code if it reaches 13psi iirc

you can hook a gauge between #1 and #2 between Boost Compensator Diagphragm and boost valve.

2c-t pic from google

though if you have money, it's much better to use adjustable kits. so you can adjust pressure manualy considering w/ intercooler or w/out intercooler yet...

because accessing turbo in vans are a pain in the ass... you don't want to go back over and over again to adjust it by washers...

[ineedmorehp]

Medyo oT: sir yung liteace mo jdm or phdm w/ jdm engine? if phdm, gas to diesel convert or diesel 2c to 2c-t engine? kung maglalagay ng intercooler, saan Pwede?

[rion]

your best options will be below the sliding doors. (driver's side or opposite side)

a fellow uk townie owner sent me pics of his townie with intercooler. he had some local aluminium guru weld spigots onto the two parts of the manifold, and then placed a blanking plate between the two parts. Presto, air goes out one pipe and in the other. Fitting a smaller fuel filter cartridge left enough room to get the pipes down.


in my case, it's below the turbo side (below sliding door, passenger side), because below the opposite sliding door has secondary aircon radiator installed.

the toughest part of doing below turbo side will be using the hoses. unless your hose is bendable. you will have hardtime a bit fitting it, finding particular curved hoses. then improvising the intercooler /fan takes time too.

my first plan was putting it in front, below bumper or after the engine radiator, however, it takes longer hose and i worry it will cause to much pressure lose...

[alwayz_yummy]

Medyo oT: sir yung liteace mo jdm or phdm w/ jdm engine? if phdm, gas to diesel convert or diesel 2c to 2c-t engine? kung maglalagay ng intercooler, saan Pwede?

stock engine po to, JDM-convert liteace ko, pero ung itsura is yung last model na nilabas dito,e...only a-bit higher, 4wd, 2c-t and better interior (kita sa cardomain sig-link ko...) about sa paglagay ng intercooler, i prefer sa harap para di na kailangan ng fan(like sa pajeros) pero the problem is: PIPING saan ko idadaan?? kung sa under-the-sliding door, pwede in, kaso mounting, fan at PIPING parin ang prob...

no doubt, that's the EGR.



it has been a debate that EGR hurts performance...



yep, the purpose is to make the lever move a bit...

your dashboard has a overboost warning code if it reaches 13psi iirc

you can hook a gauge between #1 and #2 between Boost Compensator Diagphragm and boost valve.

2c-t pic from google

though if you have money, it's much better to use adjustable kits. so you can adjust pressure manualy considering w/ intercooler or w/out intercooler yet...

because accessing turbo in vans are a pain in the ass... you don't want to go back over and over again to adjust it by washers...

may green-yellow warning sa guage yung liteace ko, grren pag boosting na ang turbo(lowest is 1800rpm!) hope i will not see the yellow lit up..so mga 13psi ang bigay niya po. kung maglalagay ng adjuster, saan naman ko i-tatap, dun din ba sa indicated sa pic?

[rion]

no, though I'm not sure if it's impossible to tap there... I'm only aware of boost controlers hooked on somewhere between turbo and wastegate. there are different ways of controlling it, including electronic controled. check mo nalang sa racing shops kung ano ang available...

some info on boost controllers
wikipedia

piping nga ang biggest problem. kung may bendable hose available. ok yun.
mounting intercooler in front could risk acceleration responsiveness. but would gladly be proven wrong. mas ok nga doon ilagay. my intercooler is really hot, after hours of travel, I can't put my hand any longer than 2 secs in the body... planning to add relay and additional fan (small 12v cpu fans)

intercooled Pajeros without airscoops has long vertical fan below though...

after installing the intercooler, you can increase your injection pump governor to deliver additional fuel needed for higher air flow and power of higher boost pressure. but since it has boost compensator valves. I didn't adjust mine. but the uk friend adjusted his...

[alwayz_yummy]

naglagay ka na pala ng intercooler? anu ginamit mong intercooler/custom made? magkano inabot? habang waiting for the cylinder head, pinagmamasdan ko din yun makina/engine bay kung saan maganda maglagay.

kung combination ng rubber hose,metal pipes pwede, diba, as long as walang leak right? pwede bang hose ng radiator ang gamitin ko?

nga pala, nakakita na ako ng intercooler fan ng pajero, mahaba for our applucation, suppose may thin aux fans na pwedeng-icustom mout sa intercooler...

sa ilalim ng LH-sliding ko ilalagay sana..

medyo OT: is it bad na isama/i-babaw ang intercooler sa oil-collers(atf and engine)? para 1 fan lang sila... kung bad, sa harap nalang siguro..

[rion]

yep, intercooler from 1st generation Pajero, the intercooler is slightly smaller than our 4d56 pajero. we bought it at 1500 without fan. the uk townace owner fella used Peugeot intercooler...

combination of rubber hose,metal pipes is fine. we use two metal pipes. but avoid using it as much as possible. if aflexible hose exists, get that one... radiator hose is fine but they are non-bendable or you can't force it to... air passage will be affected... buy the hose coated with cloth like material... they say it's more durable...

so far, wala namang leak. I tested it with a 1300 watts blower. and tried forcing pressure, closing the hose and used soap bubles to see some leaks but none appeared so far...

mataas nga yung fan sa Pajero based from our 4d56 w/o air scoop. you can buy a 2.5 inch height, 11.5 inch width universal aux fan with casing * 600 pesos...

heto yung size ng pajero 4d56 intercooler namin...



wala akong pic yung gamit ko sa van, it's just a few inch. maybe 1.5-2.0 inch widths smaller iirc. height remans the same... the 18 inch removable pipe was not included when I bought it...

saan po yang "i-babaw ang intercooler sa oil-collers(atf and engine)?"

[alwayz_yummy]

i mean is, sa placing, intercooler is on-top/front or back/bottom ng oil cooler(engine/atf), masama bang i-combine ang intercooler at oil cooler? kahit may fan ito?

ung concept ng radiator at condenser ng aircon, nasa front ang condenser sa likod ang radiator...

mura lang pala ang intercooler, bibili lang ng fan at piping nalang pala, kung sakali..machine shop ang katapat pala ng stock intake pipe

pwede yung radiator hose pero wag ko lang i-force bend? can the radiator hose take the heat or hanap nalang ako ng intercooler hose ng pajero..