Buick/Rover aluminum v8 to 914 conversion Options

[bfrymire]

(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272425759.6.jpg)

Bob

Bob,

Catch me up on this. What do the fittings go to? A remote water pump? If that is the case, I am scratching my head, as would the water just go from the outlet right back into the inlet, and not even go through the motor? I would expect a barrier of some kind to force water through the block?

Am i missing something?

-- brett

[Krank]

Bob,

Catch me up on this. What do the fittings go to? A remote water pump? If that is the case, I am scratching my head, as would the water just go from the outlet right back into the inlet, and not even go through the motor? I would expect a barrier of some kind to force water through the block?

Am i missing something?

-- brett

Brett, both those ports are engine coolant inlets. They combine within the water pump and draw the coolant out of the rad and pumped into the engine. I think there is a previous picture that show the timing cover without the water pump and you can see how the flow is divided into the two coolant inlet ports on the block.

Jim

[bfrymire]

Bob,

Catch me up on this. What do the fittings go to? A remote water pump? If that is the case, I am scratching my head, as would the water just go from the outlet right back into the inlet, and not even go through the motor? I would expect a barrier of some kind to force water through the block?

Am i missing something?

-- brett

Brett, both those ports are engine coolant inlets. They combine within the water pump and draw the coolant out of the rad and pumped into the engine. I think there is a previous picture that show the timing cover without the water pump and you can see how the flow is divided into the two coolant inlet ports on the block.

Jim

\

Ahhh. That makes sense. Forgive me for my ignorance!

-- brett

[streetrover]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

[bfrymire]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

The only thing that leaps out to me, is that you are now creating a high pressure region right under the nose of the car. At high speeds, this could lead to instability...

Just my 2 cents.... (I am interested in this thread, as I am doing a conversion to water pumper also. Just the subaru instead.) I would love to keep a front trunk!



-- brett

[Cheapsnake]

Interesting concept, but Brett has a point about creating a lift situation and I'm not sure how much storage you're going to save by the time you mount the radiator, hoses, shroud and fan. Having said that, I think it's worth laying out, at least on paper. If nothing else, it might result in a cleaner looking front trunk. If you go for it, of course we'll want pics.

Tom

[ttwitc9516]

Just out of curiosity how come no one ever mounts the radiator in the rear trunk at about a 30 degree angle and use electric fans exclusively for air flow and draw in cool air through a vent in the lid? It would save the front trunk and save running a bunch of water lines.

[andys]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

A problem you're likely to encounter is that of creating a sufficient amount of pressure differential to attain enough air flow through the radiator.

Andys

[bfrymire]

Just out of curiosity how come no one ever mounts the radiator in the rear trunk at about a 30 degree angle and use electric fans exclusively for air flow and draw in cool air through a vent in the lid? It would save the front trunk and save running a bunch of water lines.

It has been tried with some success. Do a search on subaru and look for Tony's well detailed conversion. He put the radiator in the engine bay, and eventually put it in the front.

-- brett

[codices]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

Bob,

Isn't the path of least resistance through a vertical radiator (airstream and all) with the hot air (rising) out the fender wells or up through a cut-out in the hood?
I would think that one could channel up and out the hood with some sheet metal or even fiberglass. However, that still does nothing for front trunk room.

Dave

[Krank]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

The only thing that leaps out to me, is that you are now creating a high pressure region right under the nose of the car. At high speeds, this could lead to instability...

Just my 2 cents.... (I am interested in this thread, as I am doing a conversion to water pumper also. Just the subaru instead.) I would love to keep a front trunk!



-- brett

I think that the air pressure thing would not be any different than a teener without the air dam and coolant air ported thru the trunk floor. If you look at the sketch (nice artestry work there Street (IMG:style_emoticons/default/biggrin.gif) ) it would seem as much air would flow under the car without the dam as thru the trunk and with the dam. I think if air pressures were an issue, it would have shown up with the aftermarket A/C systems.
I know there were "low flow" rads used in heavy trucks in the 80s and early 90s. The rad had a separator running along the header of the core in line with the tank, sort of dividing the core into two separate cores. The design was eventually dropped as it was too efficient, it would drop the engine temp below normal operating temperatures on a downhill grade. A normal heavy truck uses around 2" - 3" inlet and outlet lines engine to rad, these low flow units used 1" - 1-1/4" coolant hoses and for a 200 - 300 hp diesel engine that is not much coolant flow. I found this http://www.truckradiator.com/install.html and just wonder if anyone has tried this in such an application.

[codices]

Ok guys... I've seen the renegade radiator arrangement. By all accounts it cools fine but there's absolutely no storage area left after the install. I've been pondering a horizontal placement very low in the trunk cavity with dual fans pushing air down and out. It's reminiscent of the placement of most aftermarket air-conditioning condensers I've seen. I also plan on spotwelding sheet metal several inches above the fans so that I can at least store the spare tire up front. Additionally, I plan on fabricating not only the front air dam, but also a secondary dam just forward of the cut-out to create a low-pressure area below the radiator to help suck air out at higher speeds. Any thoughts?
(IMG:http://www.914world.com/bbs2/uploads_offsite/i221.photobucket.com-11163-1272600928.1.jpg)

A problem you're likely to encounter is that of creating a sufficient amount of pressure differential to attain enough air flow through the radiator.

Andys

Bob,

Did you check the thread in The Paddock entitled "Solving V8 Conversion Overheating?"

Dave