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jc43089

BMW Sienna 2.5i build

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Thats a tough call. 

powerful stock fan + proper shrouds are a compelling argument to stay stock but my gut says its easier to resist heating up with more water capacity than it is to remove heat by convection.

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7 minutes ago, snap said:

Thats a tough call. 

powerful stock fan + proper shrouds are a compelling argument to stay stock but my gut says its easier to resist heating up with more water capacity than it is to remove heat by convection.

I was planning to use one or 2 Spal puller fans, the stock fan is PWM controlled from the Toyota ECU and is excessively thick so it would hit my water pump shaft.  I could remove the threaded end of my water pump but it's already installed.  

What about this.  A tank that will add volume to the system, although I would think to install it on the cold side of the radiator and have the fan switch right at the radiator outlet.  Somewhat like an E type Jaguar.

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22 minutes ago, KaiserRolls said:

 


People run these 24v swaps all the time with a 318 radiator.

Run it & see

 

Yea, it would probably be just fine.  I have a Stewart water pump too which helps.

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On 3/28/2018 at 11:12 AM, snap said:

my gut says its easier to resist heating up with more water capacity than it is to remove heat by convection.

If the cooling system isn't large enough to dissipate heat at an equal or greater rate than the engine is capable of putting out, then I think you're asking for trouble. Not that I envision this thing getting flogged continuously for a long periods of time, but adding more coolant capacity as "ballast" still seems like a half-ass solution.

That being said, I'd wager that the van's stock radiator is fine.

Edit: Actually, you're more likely to overheat sitting in traffic than anywhere else, due to lack of airflow. But again, extra coolant capacity might buy you a little time, but it doesn't solve the problem.

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I know, I've been busy with work, 3 kids, gardening, chickens, hogs, and house projects.  This will get done though.  I have been working a little here and there with getting the steering system situated.  The parts from Snap are going to work excellent.  I am working next on machining some parts for offsetting the inner tie rods up to avoid hitting the subframe.  I think it will work good, hopefully it turns out in real life like it looks in my head.

The oldest and youngest chillin with the hogs.

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