Amazon Radiators

[Alexis700]

Of course it has working AC, I aint gonna drive around in a black truck sweating with the windows down like an idiot.

Kind limited on space, factory rads are tight to top of frame on bottom, span across rails. On top they are against the core support top bar. On sides they are wedged tight into the intercooler.

I am thinking a 4 core scamazon rad is going to be a nice improvement over a aftermarket oem style plastic/aluminum replacement.

 

[M92PV4U]

Of course it has working AC, I aint gonna drive around in a black truck sweating with the windows down like an idiot.

 

[Thatg9659]

Are the bottom 4 inches of the rad fins packed with dust grease and gunk?

 

[Alexis700]

Replaced the rad last year, petcock on old one was broken. So no its clean. The original was greasy, but nothing crazy.

I would say the cooling system is functioning as the oem intended. However towing with added hp , means you have added heat to reject from the cooling stack that it wasnt built to handle.

Its not really a major problem, but it would be nice to be able to push it harder without running 230 degree temps. I noticed the spectra premium replacement was much lighter than the oem one, so that was a step backwards. Lighter = less metal , less metal = less BTUs transferred to air.

I like to think the amazon 4 core is a step above the original oem rad in heat rejection capacity. They sell a 3 core and a 4 core version as well. 3 core is approx $220 and 4 core is $280.

 

[subybaja]

I like to think the amazon 4 core is a step above the original oem rad in heat rejection capacity. They sell a 3 core and a 4 core version as well. 3 core is approx $220 and 4 core is $280.

Weights? Less metal also equals more flimsy.

 

[JR4X]

Anyone have any experience with em? Looking for a replacement radiator for the fsj and really don't wanna drop 400+ bucks on something thats not a DD. Thoughts?

https://a.co/d/0dIqCcec

I have one similar in my jeep, works great. Plan on throwing away the ****ty radiator cap and putting a better one on. Otherwise, for the money, send it.

 

[Form&function]

If the **** works ill run it. China kids gotta eat too and none of you ****ers are willing to make anything but turds and babies
Joking aside the problem is we sold our material production facilities and it cost more to buy aluminum than a finished product. There's about a dozen things my shop doesn't make because of this.

 

[arse_sidewards]

Weights? Less metal also equals more flimsy.

Its not really a major problem, but it would be nice to be able to push it harder without running 230 degree temps. I noticed the spectra premium replacement was much lighter than the oem one

It's not that simple.

Which transfers heat better an aluminum heat sink or an aluminum heat sink with an aluminum block between it and the heat source? Everything has an R value even if it's a ****ty one.

But, more small cores (heavier for a given cross section) will transfer heat better than one big one because any given drop of coolant has less other coolant between it and the tube wall with a smaller core.

If they're skimping in the fins rather than the tubes (unlikely just because the tubes are so much heavier you'd really need to remove a ton of fin to add up to a noticeable difference) then that would make the lighter one worse, but once again, the same rule about the thinner finer fins being better weight for weight applies.

, so that was a step backwards. Lighter = less metal , less metal = less BTUs transferred to air.

I like to think the amazon 4 core is a step above the original oem rad in heat rejection capacity. They sell a 3 core and a 4 core version as well. 3 core is approx $220 and 4 core is $280.

Returns go way down with additional core thickness because the air is pretty damn hot by the time it gets to the rear cores.

I forget if you're running an auto trans but you can take a pretty solid load off the radiator by cooling that down before it gets there.

You got any place to just add a whole additional small radiator? Lots of people have sucked a ton of heat out of transmission fluid and oil with a standalone cooler mounted horizontal on top of a inner fender.