Slant Six Forum :: Who's set-up is this?

draw through with injectors? That is a fuel rail you see, its hidinfg the injectors. Its being fed by the blue 90 in the front.

The early 2.2 T1 is considered a draw through

Just because its fuel injected doesn't disqualify it from being a draw through set up.

Quote:

The early 2.2 T1 is considered a draw through

Mmmm...I don't think that's correct. Exactly how are you defining "draw through" here? The term as I've always seen it used means the fuel-air mix is drawn through the turbocharger, because the carburetor's upstream of the turbocharger inlet (as opposed to blow-through, where only air goes through the turbocharger because the carburetor's downstream of the turbocharger outlet).

The early turbo 2.2s, like the later ones, had the fuel injectors located near the cylinder head end of each of the four intake manifold runners.

Quote:

Just because its fuel injected doesn't disqualify it from being a draw through set up.

Show 'n' tell, then! The only way I can imagine a draw-through fuel-injected turbocharged setup would be throttle body injection upstream of the turbocharger. I don't know that anyone's been silly enough to try this, though.

Didn't the first turbo "K" cars have the throttle body on the inlet of the turbo, or was it a carb? I thought the Buick "EFI" were all blow thru. The early Buick, Pontiac, and Crovair were draw thru carb systems.

My first comment is Circuitous.

Next, the 2.2 T1 plumbing goes [air box - TB - compressor - intake with injectors] so it can be considered a 'draw-through' except it is not drawing fuel, just air.
For the sake of semantics, a 'blow-through' system on a carburetor doesn't really 'blow' fuel out of the carb (unless you've done something very wrong

), it just blows air through it and the venturi adds the fuel.
Yep, exactly!

Allowing the compressor to experience vacuum during shifts keeps the wheel spinning, but there is definite lag with this design since it must re-pressurize the whole intake.
My '86 GLH Turbo, when it was in it's draw through trim, wasn't really too laggy and not even when I added the over the top intercooler.

Besides, there is no need for a BOV, and where's the fun in that?
correct...the BOV helps to alleviate the pile up of air on the TB blade or Carb blade when it shuts in a Blow through set up. You just miss the cool pfshttt sound..lol

On this engine, that black line heading for the compressor inlet might be the throttle cable leading to a remote TB...wish there was a better shot. There is a different angle in the link, but it also obscures the relevant area.

Author:	the_engineers [ Mon Jun 08, 2015 1:02 pm ]
Post subject:	Who's set-up is this?
Found this over on the Turbo Dodge forum... http://www.turbododge.com/forums/f11/f5 ... dup-2.html Any idea who it belongs to?

Author:	Tom Drake [ Mon Jun 08, 2015 3:00 pm ]
Post subject:
Someone from here because those numbers came off my old head graph.

Author:	Valleyant [ Mon Jun 08, 2015 4:26 pm ]
Post subject:
This set up favors the original 2.2 T1 in design....the intercooler even mimics the DC (direct connection)over the top Intercooler that was available for the 2.2 Turbo. I like how it uses the high pressure air at the base of the windshield, and through the cowl, to force air over the intercoolers core....neat set up!

Author:	pishta [ Tue Jun 09, 2015 7:38 pm ]
Post subject:
Is the TB in the box? I cant see it...

Author:	Valleyant [ Wed Jun 10, 2015 4:45 pm ]
Post subject:
I don't think so....from studying the pic I think it's a draw through set up.

Slant Six Forum https://slantsix.org/forum/

Who's set-up is this? https://slantsix.org/forum/viewtopic.php?t=57839	Page 1 of 2

Author:	pishta [ Wed Jun 10, 2015 6:50 pm ]
Post subject:
draw through with injectors? That is a fuel rail you see, its hidinfg the injectors. Its being fed by the blue 90 in the front.

Author:	'67 Dart 270 [ Wed Jun 10, 2015 8:30 pm ]
Post subject:	Doctor Who
It looks like something from a Sci Fi movie; all the shiny metal and hoses going every which way....Borg technology grafted onto slant 6... b

Author:	Valleyant [ Thu Jun 11, 2015 3:59 pm ]
Post subject:
Quote: draw through with injectors? That is a fuel rail you see, its hidinfg the injectors. Its being fed by the blue 90 in the front. Correct, I saw the fuel rail and injectors. That's what caused me to think of the early 2.2 T1 engine. I think the throttle body is before the turbo on this slant. Hence draw through. Also another clue is that all the tubing is solid lengths of pipe which would be required in a draw through application with very short sections of hose to join them where needed. Ignore the pink feeding the coffee can and intercooler. The early 2.2 T1 is considered a draw through and this is how I am basing the similarities in the set up. Just because its fuel injected doesn't disqualify it from being a draw through set up.

Author:	SlantSixDan [ Thu Jun 11, 2015 5:22 pm ]
Post subject:
Quote: The early 2.2 T1 is considered a draw through Mmmm...I don't think that's correct. Exactly how are you defining "draw through" here? The term as I've always seen it used means the fuel-air mix is drawn through the turbocharger, because the carburetor's upstream of the turbocharger inlet (as opposed to blow-through, where only air goes through the turbocharger because the carburetor's downstream of the turbocharger outlet). The early turbo 2.2s, like the later ones, had the fuel injectors located near the cylinder head end of each of the four intake manifold runners. Quote: Just because its fuel injected doesn't disqualify it from being a draw through set up. Show 'n' tell, then! The only way I can imagine a draw-through fuel-injected turbocharged setup would be throttle body injection upstream of the turbocharger. I don't know that anyone's been silly enough to try this, though.

Author:	kesteb [ Thu Jun 11, 2015 10:19 pm ]
Post subject:
Ummm, Chrysler's first generation of turbo engines in the K cars did just that. Buick did the same thing with their first generation of turbo EFI V6's.

Author:	Charrlie_S [ Fri Jun 12, 2015 2:57 am ]
Post subject:
Didn't the first turbo "K" cars have the throttle body on the inlet of the turbo, or was it a carb? I thought the Buick "EFI" were all blow thru. The early Buick, Pontiac, and Crovair were draw thru carb systems.

Author:	sixinthehead [ Fri Jun 12, 2015 5:04 am ]
Post subject:
My first comment is Circuitous. Next, the 2.2 T1 plumbing goes [air box - TB - compressor - intake with injectors] so it can be considered a 'draw-through' except it is not drawing fuel, just air. For the sake of semantics, a 'blow-through' system on a carburetor doesn't really 'blow' fuel out of the carb (unless you've done something very wrong ), it just blows air through it and the venturi adds the fuel. Allowing the compressor to experience vacuum during shifts keeps the wheel spinning, but there is definite lag with this design since it must re-pressurize the whole intake. Besides, there is no need for a BOV, and where's the fun in that? On this engine, that black line heading for the compressor inlet might be the throttle cable leading to a remote TB...wish there was a better shot. There is a different angle in the link, but it also obscures the relevant area.

Author:	Valleyant [ Fri Jun 12, 2015 5:36 am ]
Post subject:
Quote: Quote: The early 2.2 T1 is considered a draw through Mmmm...I don't think that's correct. Exactly how are you defining "draw through" here? The term as I've always seen it used means the fuel-air mix is drawn through the turbocharger, because the carburetor's upstream of the turbocharger inlet (as opposed to blow-through, where only air goes through the turbocharger because the carburetor's downstream of the turbocharger outlet). The early turbo 2.2s, like the later ones, had the fuel injectors located near the cylinder head end of each of the four intake manifold runners. Quote: Just because its fuel injected doesn't disqualify it from being a draw through set up. Show 'n' tell, then! The only way I can imagine a draw-through fuel-injected turbocharged setup would be throttle body injection upstream of the turbocharger. I don't know that anyone's been silly enough to try this, though. Dan it is simple....wether it is a throttle body or carburetor......its a draw through if it is before the turbocharger because you are DRAWING air through it (it being the throttle body or carburetor). If it happens to be a carb, the air fuel mix gets compressed after the carb. If it is a Throttle body in a port fuel injection set up the air is compressed after the throttle body and the fuel is added just before the valves. If the turbocharger is before the carburetor or throttle body its a blow through..... because it is BLOWING compressed air through the carb or throttle body (as in a port fuel injection set up). The early T1 2.2 turbocharger was in fact a draw through system because the air first was drawn through the throttle body and then compressed in the compressor side of the Turbocharger...... Plenty of pics diagrams on the web for show and tell. By the way there was a later T1. A 2.2L starting in '88 and the following 2.5L which employed a blow through set up....these were a lot easier to intercool!

Author:	Valleyant [ Fri Jun 12, 2015 5:51 am ]
Post subject:
Quote: Didn't the first turbo "K" cars have the throttle body on the inlet of the turbo, or was it a carb? I thought the Buick "EFI" were all blow thru. The early Buick, Pontiac, and Crovair were draw thru carb systems. Charlie, It was a Throttle body with a port fuel injection set up on the turbo 2.2L engines. There were both blow through and draw through versions made by Buick starting with draw through in the '78 model year. The early Buick you are referring to is the 215 cube V6 right?

Page 1 of 2	All times are UTC-08:00
Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/

Author:	Valleyant [ Fri Jun 12, 2015 8:07 am ]
Post subject:
Quote: My first comment is Circuitous. Next, the 2.2 T1 plumbing goes [air box - TB - compressor - intake with injectors] so it can be considered a 'draw-through' except it is not drawing fuel, just air. For the sake of semantics, a 'blow-through' system on a carburetor doesn't really 'blow' fuel out of the carb (unless you've done something very wrong ), it just blows air through it and the venturi adds the fuel. Yep, exactly! Allowing the compressor to experience vacuum during shifts keeps the wheel spinning, but there is definite lag with this design since it must re-pressurize the whole intake. My '86 GLH Turbo, when it was in it's draw through trim, wasn't really too laggy and not even when I added the over the top intercooler. Besides, there is no need for a BOV, and where's the fun in that? correct...the BOV helps to alleviate the pile up of air on the TB blade or Carb blade when it shuts in a Blow through set up. You just miss the cool pfshttt sound..lol On this engine, that black line heading for the compressor inlet might be the throttle cable leading to a remote TB...wish there was a better shot. There is a different angle in the link, but it also obscures the relevant area. I am holding fast that this is a draw through. Neat set up and interesting!