Cooling system upgrades for 4.6 stroker with Sprintex supercharger

[olysan]

I’m getting parts together to rebuild my 4.0 as a “modified poor man’s stroker” 4.6. I also plan to install a Sprintex supercharger that I have. I’ve read many threads about cooling system upgrades and I understand that there is no benefit to upgrading the oem system for a stock 4.0, but What about a supercharged 4.6? Can the stock cooling system handle a lightly boosted stroker? The Jeep will be driven mainly around town 50/50 city and highway and I don’t do any real off roading.

 

[bluescapegoat]

I’m getting parts together to rebuild my 4.0 as a “modified poor man’s stroker” 4.6. I also plan to install a Sprintex supercharger that I have. I’ve read many threads about cooling system upgrades and I understand that there is no benefit to upgrading the oem system for a stock 4.0, but What about a supercharged 4.6? Can the stock cooling system handle a lightly boosted stroker? The Jeep will be driven mainly around town 50/50 city and highway and I don’t do any real off roading.

Mine's not a stroker, but it is boosted and has zero issues with cooling with the stock setup.

The real temperatures you'll want to concern yourself with are inside the cylinders

 

[olysan]

Thanks for the reply, that’s helpful data and I agree about cylinder temps and will be using a methane injection system to help keep them under control.

 

[bluescapegoat]

Thanks for the reply, that’s helpful data and I agree about cylinder temps and will be using a methane injection system to help keep them under control.

Good deal, I do the same with my roots blower, although I think the roots generally run even hotter than the twin screws.

 

[NashvilleTJ]

Although not stroked, I ran a Kenne Bell supercharger for many years on an I6 with the stock cooling system. No issues at all. I think you would be fine with the stroker.

But one thing you definitely want to add is a tranny cooler, if you have not already done so.