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2.2 / 2.5 engines and 2.4 engines

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First Experience With A Turbo just a thought Rate Topic: -----

#1 Guest_Bigalexe_*

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Posted 02 June 2006 - 10:39 AM

If you were a registered user, you would not be seeing this!

Well i worked on my first turbocharged vehicle. It's a friend's 1989 Lebaron Convertible with a 2.5 Turbo. THe firs tthing i noticed is how friggin hot the engine is. I went to remove the timing cover and immediately burnt my hand on the valve cover. Anyway do all turbos get that hot?

Also can someone direct me to where i can find information on the differences between Turbo / Non-turbo cars and how turbos are controlled? I've done engine performance but not with a turbo or a supercharger. I understand how the operate but not how they are controlled. Any direction would be appreciated.
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#2 User is offline   Tony T. 

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Posted 02 June 2006 - 12:57 PM

While I really can't help (being new at turbos myself..), I would suggest you post for help over in one of the model specific areas, like the G bodies (the LB is more like the Daytona than any other car) or over at www.turbododge.com

I'm forever amazed at the level of expertise you find on these boards...

TT
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#3 User is offline   dbaldwin 

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Posted 02 June 2006 - 01:15 PM

If you were a registered user, you would not be seeing this!

View PostBigalexe, on Jun 2 2006, 11:39 AM, said:

Well i worked on my first turbocharged vehicle. It's a friend's 1989 Lebaron Convertible with a 2.5 Turbo. THe firs tthing i noticed is how friggin hot the engine is. I went to remove the timing cover and immediately burnt my hand on the valve cover. Anyway do all turbos get that hot?

Also can someone direct me to where i can find information on the differences between Turbo / Non-turbo cars and how turbos are controlled? I've done engine performance but not with a turbo or a supercharger. I understand how the operate but not how they are controlled. Any direction would be appreciated.



They do get hot.. real hot, if your on-them hard... Remember to let them idle for a couple minutes after "spirited driving" so the turbo has a chance to cool.

Otherwise, they are great fun.
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#4 User is offline   DaytonaTurbo87 

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Posted 02 June 2006 - 02:23 PM

If you were a registered user, you would not be seeing this!

they are controlled pretty simply actually. They've got a wastegate, which is pretty much a bypass valve. Once the desired boost level is achieved the wastegate begins to bypass exhaust gas, so instead of all the exhaust gas spooling the turbo, some of it is used to spool the turbo and the rest is just sent out the exhaust. If you drive without the wastegate hooked up, it'll boost until it passes 14psi and the computer enters cut off mode. When stock, the computer controls a solenoid, which regulates vacuum/boost that the wastegate vacuum can sees. The vacuum can moves a rod in or out which sets the position of the wastegate. Many performance guys will put a g-valve in place of the computers solenoid, this gives you manual instead of computer controlled boost. Hope that helps a lil.
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#5 Guest_Bigalexe_*

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Posted 02 June 2006 - 07:05 PM

so really on a normal care i know there is an air filter, then carb / throttle body, intake manifold, then cylinders. THen the turbo setup just adds the turbo after the filter and the turbo is controlled by a vacuum solenoid. I take it the source of the vacuum varies by model. The waste gate also bleeds off exhaust not intake pressure.. that i just learned.

do i seem to get it DT87?
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#6 User is offline   speedyshelby 

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Posted 21 June 2006 - 03:52 PM

http://www.thedodgeg....com/index.html

read up
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