D-6

No fries said:
Yeah cause a slush box stays so cool, mine never contributes to the in cab temp. Radiator is probably good up to 800HP so it doesn't matter the location.
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I toasted a cheese sammich on a trans tunnel at Tellico. Wasn't actually on the menu.
 
MetalCraftSolved said:
Griffin Radiator says that radiator is good for 850.
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Cool.
But real radiators aren't rated in horsepower, they are rated in heat rejection capacity.
For example you think that radiator is sufficient to cool a 30L 800hp 3500ftb diesel?
Of course not.

But as I said. Radiators are rated in heat rejection capacity.
The calculation requires a stated ambient air temp that will be drawn across the rejection surface.

Here's a hint for you, the ambient air you are pulling across your radiator is going to be hotter than the surface you aretrying to cool.
And it doesn't matter how big a fan ya got....you can't move hot air fast enough
 
I may be able to get my head wrapped around it some more tomorrow night. I know I left room for a bigger radiator, because I may end up being told to put a 1200 hp supercharged engine in it.
 
Chris_Keziah said:
So who's pulling the strings on this puppet show of a build?
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Same question, this just gets fishier and fishier. If Fuller had a CAD program I would swear this was him.

I got it! This is @shawn messing with all of us :lol:
 
MetalCraftSolved said:
I may be able to get my head wrapped around it some more tomorrow night. I know I left room for a bigger radiator, because I may end up being told to put a 1200 hp supercharged engine in it.
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Trophy trucks have radiators that are 4 times the size of what you're showing here and they cool 900/1000hp out of NA engines.

A boosted application would require charge air cooling on top of the insane amount of heat needed to be removed from a 1200hp engine driven under race load for any significant amount of time.

FYI, if you were looking at competition rockbouncers that make 1000+hp as a "proof of concept", they have small radiators and are not meant to be driven more than 5mn at a time. GoldRush overheats in less than 3 miles as an example.




I would love to get TIG welding lessons from you. But when it comes to designing a buggy, it seems like you're not in your element.
 
Bebop said:
Trophy trucks have radiators that are 4 times the size of what you're showing here and they cool 900/1000hp out of NA engines.

A boosted application would require charge air cooling on top of the insane amount of heat needed to be removed from a 1200hp engine driven under race load for any significant amount of time.

FYI, if you were looking at competition rockbouncers that make 1000+hp as a "proof of concept", they have small radiators and are not meant to be driven more than 5mn at a time. GoldRush overheats in less than 3 miles as an example.




I would love to get TIG welding lessons from you. But when it comes to designing a buggy, it seems like you're not in your element.
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So, trophy trucks have radiators that are 112 x 76 inches?
 
MetalCraftSolved said:
So, trophy trucks have radiators that are 112 x 76 inches?
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Correct. All that matters is the front area. Fin length, material, thickness, and design are insignificant, and they all have only 1 core.
 
You guys sure do know a lot about designing off-road racing vehicles. I'm glad you're here to help me through it. I appreciate you guys sharing your extensive experiences. I guess this design thing is just something that's not really in my wheelhouse. Appreciate everyone helping me sharpen it up.
 
MetalCraftSolved said:
You guys sure do know a lot about designing off-road racing vehicles. I'm glad you're here to help me through it. I appreciate you guys sharing your extensive experiences. I guess this design thing is just something that's not really in my wheelhouse. Appreciate everyone helping me sharpen it up.
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And btw ....I know zero about designing offroad vehicles.
Ill concede even in your lunacy you know worlds more than I.
But...radiator design, size and selection....I'd venture a guess that unless one of the Volvo guys on here work in the cooling department, no one on the forum has as much experience as I do in radiator design - especially in atypical applications.
Hell I once mounted two radiators horizontally across the roof line of a 1913 train car and used a variable speed fan with a cooling sensor backloop and an adjustable damper output that could control the temperature of twin 27L engines mounted internally without air flow access to within 2 degrees in ambients from -65F to +125F at speeds up to 80mph or sitting still. Was kinda proud of that one. It also had a CAC and combustion air had to be piped in from several cars ahead.
 
Can't win races with a hot engine. Changed the radiator size to a 36" x 19" x 3".

I was trying pretty hard to keep all the parts in the car below the mid-rail, but things just didn't work out that way. Moving the radiator up over the mid-rail should eliminate the chance of overheating.

I wasn't going to settle for allowing that radiator to block my vision when I want to look to the right.

With the radiator in the position it's in now, the passenger side of the radiator may get some sort of plexi-glass to help funnel the air, and still be able to see through it.

A lot of stuff still to go through. I may be looking at maximizing the size of the fuel cell now.

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You can avoid 90% of these problems if you go full electric.
 
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