View Full Version : Is it possible For a Turbo CARBY?
im.Kusuma
19-08-2009, 06:23 PM
Is it possible for a carby engine to get turbo charged?
Im not tryna ask a stupid question but im just curious.
I've used the search thingo, didnt get a specific answer so i want to get it from you's.
for example, D15b7 carby turbocharged with gt40 turbo and whatever intercooler and turbosmart BOV" is that possible lol? :o
what about supercharger? Still possible?
thankss
im not sure if its possible, but i can imagine tuning it.
would be a pain
DLO01
19-08-2009, 06:27 PM
Of course it is. What do you think they did before fuel injection? Both 'suck through carby and blow through carby' Of course the carby would have to be jetted appropriately to suit.
chargeR
19-08-2009, 06:28 PM
Yes it is theoretically possible and carbureted turbo setups are somewhat common in the old school V8 fraternity. You can either have a blow through setup with the carburetor downstream of the turbo, in this case the carburettor has to be specially modified and setup to deal with the positive pressure from the turbo, or suck through with the carb on the intake side of the turbo.
On a D15 I would say it is not worth the effort and you would be better of changing to an EFI engine of some description if you wish to go turbo.
im.Kusuma
19-08-2009, 06:32 PM
theoratically, its possible but mechanically its sort of possible? You got anymore details on this? What ways can i tune my carb or do whatever to it to make it quick without doing an engine conversion?
DLO01
19-08-2009, 06:51 PM
Its not just theoretically possible, its been done thousands of times before. You'll need a decent carburettor, like a Weber carburettor or even a SU/Stromberg carby. Get it dyno tunned and jetted correctly. Fueling will never be as accurate as our ecus today.
im.Kusuma
19-08-2009, 06:56 PM
Its not just theoretically possible, its been done thousands of times before. You'll need a decent carburettor, like a Weber carburettor or even a SU/Stromberg carby. Get it dyno tunned and jetted correctly. Fueling will never be as accurate as our ecus today.
right gotcha there! thanks for that
Killa From Manila
19-08-2009, 06:59 PM
friend has a carby on his 63 ej panelvan. carby sits right on top of the turbo injecting fuel straight in. no intercooler or nething is needed
EGB18CT
19-08-2009, 07:04 PM
yes for sure. just need appropriate carby and jetting.
jdmEG5
19-08-2009, 07:32 PM
you seriously gonna put a turbo into ur ed that i gave u? lol..
DLO01
19-08-2009, 07:35 PM
Hopefully not a GT40 though. :p
altong0840
19-08-2009, 08:03 PM
form my memory~i got a mira turbo running carby engine and it is factory turbo, so it is 100% sure carby can run turbo
HRC.Automotive
19-08-2009, 08:09 PM
Possible...Yes. Feasible...No.
You can set up either a blow through carburetor config. where the turbo pumps air through the carby (but you have to find the appropriate type as a regular carby is configured to "suck-Through")
Or use a larger conventional type carby designed for a bigger engine (have to work out what size depending on intended airflow/psi), and place the carby where the inlet to the turbo is (where the air filter sits on an injected turbo set up). and the fuel/air mix from the carby gets pumped through the turbo, through the piping, through the intercooler, then finally to the engine. (leaving a lot of time for the fuel to condense on the walls and not atomise correctly)
But the time and money spent on that would be better put towards an efi engine conversion and then a turbo set up. it will be more reliable and a whole lot easier to tune.. its true that the V8 scene has covered all these avenues.. but a lot more people have off the shelf items for these set ups, your case would be a custom set up, or a rare one at that.
Hope that helps.
im.Kusuma
19-08-2009, 09:31 PM
you seriously gonna put a turbo into ur ed that i gave u? lol..
fag.. lol
Hopefully not a GT40 though. :p
LOl it was just an example :D
form my memory~i got a mira turbo running carby engine and it is factory turbo, so it is 100% sure carby can run turbo
cheers for that.
Anybody here got a pic of a carby engine with a turbo set up on it? Im very interested lol
im.Kusuma
19-08-2009, 09:32 PM
Possible...Yes. Feasible...No.
You can set up either a blow through carburetor config. where the turbo pumps air through the carby (but you have to find the appropriate type as a regular carby is configured to "suck-Through")
Or use a larger conventional type carby designed for a bigger engine (have to work out what size depending on intended airflow/psi), and place the carby where the inlet to the turbo is (where the air filter sits on an injected turbo set up). and the fuel/air mix from the carby gets pumped through the turbo, through the piping, through the intercooler, then finally to the engine. (leaving a lot of time for the fuel to condense on the walls and not atomise correctly)
But the time and money spent on that would be better put towards an efi engine conversion and then a turbo set up. it will be more reliable and a whole lot easier to tune.. its true that the V8 scene has covered all these avenues.. but a lot more people have off the shelf items for these set ups, your case would be a custom set up, or a rare one at that.
Hope that helps.
thanks for that
MWAKU
19-08-2009, 11:46 PM
eh what a headache / waste of money and time lol
like doing it for the fk of it
turbo aint everything bro..
im.Kusuma
20-08-2009, 12:31 AM
eh what a headache / waste of money and time lol
like doing it for the fk of it
turbo aint everything bro..
*likes this*
trism
20-08-2009, 02:39 AM
Or use a larger conventional type carby designed for a bigger engine (have to work out what size depending on intended airflow/psi), and place the carby where the inlet to the turbo is (where the air filter sits on an injected turbo set up). and the fuel/air mix from the carby gets pumped through the turbo, through the piping, through the intercooler, then finally to the engine. (leaving a lot of time for the fuel to condense on the walls and not atomise correctly)
no
NEVER EVER EVER DO THIS
a suckthrough setup should NEVER be used with an intercooler. fuel will pool in the intercooler, and if the car should backfire through the intake manifold (not at all uncommon on turbo cars) then say goodbye, coz all the pooled fuel in an oxygen rich environment will explode instantly
NSPYRE
20-08-2009, 03:25 AM
sure it is, just watch Wangan Midnight. 600HP 240Z woooo :cool:
JohnL
20-08-2009, 07:53 AM
friend has a carby on his 63 ej panelvan. carby sits right on top of the turbo injecting fuel straight in. no intercooler or nething is needed
An intercooler is just as important (no more / no less) for a carburettored set up as it is for an injected set up. As has been suggested it may not be a good idea to have an relatively large volume of enclosed air containing vaporised fuel (liquid fuel doesn't explode), but I don't know how impractical this may be in practice.
Blow through set ups are typically better than suck through. At least one reason for this is that with suck through the fuel droplets tend to be centrifically spun off by the compressor vanes and deposited on the walls of the induction system, making it more dificult to accurately jet the carb.
Carbs must be set up specifically for blow through, which includes sealing the throttle shafts with O rings and venting the float chamber reseviour to turbo pressure (not atmospheric). Another possibility is to enclose the entire blow through carb in a turbo pressurised box.
It will be much easier to replace the stock carb with a Weber (probably DCOE), Dellorto (probably DHLA) or even an SU, Stromberg etc (variable choke carbs such as these apparently work very well with turbo set ups). This is mainly because there is a very wide range of easily sourced jetting etc options avaliable for such carbs, and they are designed to be easily tunable (unlike most OE carbs).
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