Questions tagged [turbocharger]

An exhaust-driven forced-induction device that increases an engine's power output and efficiency.

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Troubleshooting low boost pressure

A Tata with a Quadrajet BS IV (90 ps) diesel engine was brought in for low power. When starting the engine in a no load condition the turbo boost pressure is 950 mBar. When the engine accelerates the ...
SUDHANSU BISWAL's user avatar
6 votes
2 answers
11k views

Ford Fiesta 1.4 TDCi Oil Leak

I have a Ford Fiesta 1.4 TDCi 2006 model and I recently did a head gasket change. Now there is a oil leak from the engine, behind the turbo, i cant seem to find the source, but it looks bad. Can ...
River CR Phoenix's user avatar
9 votes
2 answers
5k views

Troubleshooting Low Turbo Boost

I'm starting to suspect that the smoke and low power (I'm pretty sure it is not "limp mode" just a lack of enthusiasm) I'm seeing in our 2002 Jetta TDI (ALH engine with Garret VNT-15 turbocharger) may ...
dlu's user avatar
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3 votes
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Meaning of P0245 (16629) DTC on VW ALH TDI Engine

I'm seeing a P0245/16629 – Solenoid Valve (A) for Boost Pressure Control (N75): Short to Ground – code on our 2002 ALH TDI. The solenoid valve controls the boost by moving the vacuum actuator that ...
dlu's user avatar
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3 votes
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2000 Honda Civic SiR turbo sputter and stalling

To start I have a lot of deletes and tuned ecu on a B18 bottom end with B16 top. Turbo has been set to cut out at 5psi on the ecu. I have a good feeling it is something fuel as I am having problems ...
SiR.turbo's user avatar
3 votes
2 answers
275 views

97 Eclipse GST Turbo

I switched my Turbo from the T25 Garrett to a 16g TDO5. I have been having to get my car beyond 3500 RPM before boost actually begins. Is this a problem or is this normal before boost? Should it ...
Keith's user avatar
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5 votes
1 answer
180 views

1997 Subaru WRX STI Type R - Strange and occasional turbo lag

After a longer drive (45 minutes on highway) my turbo is spooling but not putting power to the tires. The revs just kinda bounce there like it's hitting a limiter but it's only around 5k rpm. This ...
user18985's user avatar
2 votes
1 answer
5k views

What exactly is porting a wastegate and what situations would I want to do it in?

I've seen it mentioned that some people should port their wastegate on their turbocharged vehicles. Usually, this seems to be recommended in some situations where the car is overboosting past the ...
Ellesedil's user avatar
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10 votes
3 answers
3k views

Minor boost leak and shrill tone at peak boost: hose clamp, gasket or blow off valve?

Vehicle in question: 2004 Subaru WRX wagon. This weekend, I replaced the intercooler hose (y-shaped upset the intercooler), the throttle body hose and the blowoff valve hose (routes the over boost ...
Bob Cross's user avatar
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9 votes
2 answers
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what sensors and formula are used to control VGT/VNT turbos?

I want to fit a variable geometry turbo to my car. Its vanes are usually controlled an electrical actuator (otherwise sometimes it's on vacuum). What information is used to to inform the state of the ...
Aaron Brick's user avatar
12 votes
1 answer
1k views

What are the various causes of preignition / detonation?

A search on detonation produced some of the causes of detonation, but everything I found says there are other causes, but none list them. The most common listed cause is the air / fuel mixture ...
cdunn's user avatar
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15 votes
6 answers
7k views

Turbo equivalent on electric motors

Is there anything functionally equivalent to a turbo for electric motors? Obviously, I am not asking for something that reuses exhaust gases to force in more air, because there are no exhaust gases ...
sergiol's user avatar
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3 votes
1 answer
436 views

what is the exhaust pressure of bajaj pulsar 220cc engine 2014 model?

What is the exhaust pressure of Bajaj Pulsar 220cc engine 2014 model? What is the normal idling rpm of Bajaj Pulsar 220cc? Can a turbocharger be installed on this bike?
Ajesh Ravindranath's user avatar
0 votes
1 answer
1k views

Turbo shaft broken [closed]

Ford Fiesta 1.4 diesel TDCI There was a rattling noise. Checked and found that noise is due to damaged turbo turbine. So turbo replaced. But after replacement with new turbo and 10KMS road test, the ...
Mr. SINGH's user avatar
2 votes
0 answers
3k views

Volvo D13 Boost and fuel mileage problem

My Volvo diesel D13 creates boost at low RPM's at various amounts of level and at any given time; the fuel mileage has gone down by 1.5 miles per gallon. The waste gate was replaced and the computer ...
Brother's user avatar
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1 vote
0 answers
411 views

R56 mini cooper turbo sounds [closed]

I have a 2010 mini with a r56. the loss of power light comes on when I step on it. I know the PCV valve is bad on it and can set this light. I also have a rear main seal leak so the turbo has to come ...
Michael 's user avatar
8 votes
1 answer
796 views

Is it possible to extend the length of the shaft on an existing turbocharger, further distancing the compressor from the turbine?

I'm toying with turbojet engine ideas, and over the course of my research it occurred to me that the combustion chamber could be more power-efficient and space-efficient if it was aligned in the ...
Giffyguy's user avatar
  • 215
0 votes
1 answer
258 views

How much extra should I expect to pay to have a Turbo replaced at the dealership as opposed to at a garage? [closed]

The turbo on a Ford Fiesta 2008 TDCi is bust. How much should I expect to pay?
richardstelmach's user avatar
16 votes
2 answers
9k views

What is an A/R ratio?

I heard the term A/R ratio today while watching a video about turbochargers. What does the term A/R ratio mean? Does it just apply to turbos? If not, what else does it apply to? How is it computed? ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
10 votes
1 answer
1k views

My subaru legacy will not boost

I drive a Subaru Legacy Turbocharged GT 2008 model with an EJ20 engine. When I press hard on the acceleration to boost the tachometer upon reaching 4-5 thousand RPM's it starts jerking and there is ...
Jamuel's user avatar
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7 votes
1 answer
4k views

Why no exhaust gas turbine generator in hybrid vehicles?

I found something interesting on Wikipedia today: a hybrid turbocharger. This is a device that charges a battery with an exhaust gas turbine, and at the same time operates an air compressor using the ...
juhist's user avatar
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1 vote
3 answers
1k views

VWAG TSI engines and intercooler

I have a TSI engine but auto is not VW. I wonder if these engines come along with intercooler or is it just oil cooling. Is there a way of identifiying as I can open the bonnet and notice? edit: it ...
coner's user avatar
  • 223
3 votes
2 answers
990 views

ALS (anti lag system) - What are the various types of ALS systems used on forced induction vehicles?

I have a very basic understanding of one anti lag system on some models of Toyota Celica. I am interested if anyone knows the various types of Anti-lag Systems that exist in the real world and/or ...
DucatiKiller's user avatar
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11 votes
3 answers
87k views

What is overboost?

I've heard the term overboost quite a lot. What is "bad" overboost? What is an overboost problem? What will happen to my turbo engine if I don't fix it? Edit: apparently there is a good type ...
George's user avatar
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6 votes
1 answer
2k views

Shop replaced engine, blew about six weeks later

A local repair shop recently replaced the engine in my 06 Pontiac Solstice. They obtained a used engine from LKQ. I'm not sure how many miles the replacement engine had (unfortunately). Wednesday ...
3Dave's user avatar
  • 3,149
2 votes
3 answers
442 views

Naturally Aspirated to Turbocharged

I have a NA 1.3 petrol engine and wanna load a turbo. I am looking at second hand parts at online stores and wondering if it is a problem to use a turbo from diesel engine. Does this make any ...
coner's user avatar
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7 votes
4 answers
5k views

2002 Ford F350 Superduty 7.3L Turbo diesel using a quart of oil every 43 miles

This Diesel engine has been rebuilt and it didn't use any oil till the HPOP went out. I replaced the oil pump and then I noticed my turbo when going up a hill and the Turbo would sound like a sneeze ...
Patrick Dale Millwood's user avatar
7 votes
2 answers
3k views

Would a non-turbo diesel perform better in high altitudes than a comparable gasoline engine?

I live close to the Rocky Mountains and drive into them quite often. I have a small naturally-aspirated four-banger that tends to lose a very noticeable amount of power getting into the higher ...
Poisson Fish's user avatar
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7 votes
1 answer
2k views

SAAB 9-5 wagon throws P1549 Code (Boost control valve)

I called an ASE-certified mechanic. He charged some $60 for the visit and $60 diagnosis and really he didn't quite spot on anything. Left me where I was - work-wise , diagnosis-wise and knowledge-...
user1874594's user avatar
3 votes
1 answer
7k views

Can a crimped or improperly-routed turbo oil return line cause smoke?

After my car runs for awhile, it starts intermittently blowing smoke out of the exhaust, and from under the hood (near the turbo, but it's difficult to tell exactly where it's coming from). Problem ...
3Dave's user avatar
  • 3,149
3 votes
2 answers
740 views

DPF (Diesel Particulate Filter) and Turbo: Golf TDI Bluemotion(hybrid)

I have a problem with my 2012 Golf TDI Bluemotion. The DPF and turbo need to be replaced. The replacement costs about R65 000 SA Rands. Is this common with this TDI blue motion engines or it's my ...
user12311's user avatar
4 votes
3 answers
6k views

Could a vacuum valve be responsible for a P1110 code on 2001 Saab 9-5 2.3T with check engine light on?

All of my monitors are in ready mode, only a P1110 code left, for which I have installed booster pipe O-ring, new booster valve or hooter valve, my only culprit left is the vacuum valve on firewall, ...
cruzer01's user avatar
9 votes
3 answers
68k views

Do you really need to cool down your turbo after hard driving? [duplicate]

Vehicle: 2012 Subaru Sti I have been driving turbocharged cars for a while now and I have blatantly accepted that before shutting down you must let your car idle for a few minutes after driving hard ...
tqrecords's user avatar
  • 859
7 votes
4 answers
8k views

Does limiting the use of a vehicle's turbocharger improve fuel economy?

I have heard that when a turbocharger is being used it will cause the fuel economy of your car to drop. Without thinking about techniques to improve fuel economy in general, how does a driver ...
Tito's user avatar
  • 261
24 votes
2 answers
18k views

Why do we need to cool air after it leaves a turbocharger?

When we are using a turbocharger to compress the incoming air, the air gets hotter. Usually this hot air is cooled by using an intercooler before it's passed to the engine. What is the reason behind ...
nivass balu's user avatar
3 votes
1 answer
645 views

Turbo Charging Suzuki Splash/Ritz

Can I turbo charge my Suzuki Splash/Ritz? Its a 1.2 liter petrol engine with 85HP. What types of engines can be turbo-charged. If it's possible, how would I do it?
Shobin P's user avatar
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7 votes
2 answers
3k views

Petrol vehicles, what are the advantages and disadvantages of a turbo charger?

Diesel vehicle often use turbo chargers. Petrol vehicles frequently do not. What are the advantages and disadvantages of using a turbo charger on a petrol engine?
pandeeswaran's user avatar
4 votes
2 answers
12k views

Why do Subarus run so rich under boost

This isn't a general question regarding air/fuel ratios. I want to know why Subaru specifically insists on making their cars run ridiculously rich under boost. For instance, my 2007 Forester XT has an ...
Captain Kenpachi's user avatar
2 votes
1 answer
303 views

Turbo gain level

I have a question - do you have any idea about potential power level of 132 kW (180 HP), 700 Nm MAN truck (TGL) 4.5 litre engine with damaged (not working) turbo? Would it accelerate to 55 km/h with ...
Tomek Jurkiewicz's user avatar
8 votes
2 answers
1k views

How does a supercharger differ from a turbocharger?

What is the difference between superchargers and turbochargers? I looked it up before but I really don't understand what the difference is.
Nuach's user avatar
  • 219
2 votes
2 answers
3k views

Engine, sudden reduced power with soft shaking

I have a 2007 Holden with a 2.0 Turbo engine. On one day I decided to go through a light that had just turned orange- so I pressed down, not completely as I new how much power I needed to go through ...
pnizzle's user avatar
  • 177
1 vote
0 answers
1k views

Subaru Forester XT has a hissing sound under acceleration and lacks power [closed]

I want to buy an 06-08 Forester XT and on Friday I went to test drive an Automatic. Now, I know the auto box isn't the best and the forester weighs a good 300kg/600lbs more than my Astra Coupe, but it ...
Captain Kenpachi's user avatar
1 vote
1 answer
3k views

Mk5 golf lacking boost and smoke before turbo

About a month ago the turbo blew on my mk5 Golf replaced it and cleaned all the pipes. Since this the car is lacking boost below turbo and the black smoke is so bad I can't see the car behind me. I ...
Thomas's user avatar
  • 11
2 votes
2 answers
3k views

Can I use an intercooler as a charge cooler radiator

I'm looking at creating an advanced charger cooler setup for my car, can I use an intercooler as a charge cooler radiator? Or do radiators need some special coating on the inside of them? It's a ...
Adam's user avatar
  • 121
1 vote
2 answers
1k views

Can turbochargers cause engine damage gathering dirt and other particles from the air

I have been researching turbochargers and since they use outside air and exhaust to improve engine function couldn't that harm the engine? Or do I not understand the principle? Can't particules from ...
Pobrecita's user avatar
  • 177
4 votes
3 answers
6k views

Second burst ancillary hose on Z20LET engine

This morning was the second time the same ancillary coolant hose burst in my car. It's a 2005 model Opel/Vauxhall Astra turbo coupe (engine is Z20LET). Prior to this, I have had many problems with ...
Captain Kenpachi's user avatar
3 votes
2 answers
165 views

How do I determine whether this vehicle has a turbocharger?

This is a 1999 Suburban, which did not have any aftermarket turbocharger installed. So, the only way it could have been installed is from the factory. So, how do I find out whether it has one? What ...
musicwithoutpaper's user avatar
1 vote
2 answers
5k views

VW 1.4 TSI EA113 Variations

What does VW do to improve HP and Torque from their 1.4 TSI engine? e.g.: CAXA: 90 KW @ 5000 200 NM @ 1500-4000 CAVD 118 KW @ 5800 240 NM @ 1500-4500
jacktrades's user avatar
9 votes
2 answers
37k views

What is the function of a blow-off valve vs a wastegate?

I am waiting for a 2013 STI and have been looking into upping the performance, but before I go down that road I would like to thoroughly understand the components in a forced induction vehicle. I've ...
Bill.Caffery's user avatar
13 votes
6 answers
6k views

How to deal with a hot turbocharger

A piece of advice that seems to be widely accepted is that after a long high-speed run, when the turbocharger is thoroughly hot, you should let the engine idle for a while before stopping it. The ...
abacus's user avatar
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