Undercrown cooling jets, NA circuit spec engine.
Turbo Mini Forums

In the new year I will be getting a block, head and other bit prepped to build a decent k-head NA engine. Spec will be 1380, fully ported head, sc sprint cams etc. The bottom end will have the usual tricks with fully worked crank, seanz rods, and omega forged pistons. Power should be around the 150hp mark, ultimately possibly over 170 with some other upgrades in future.

The car will be used for track days, hillclimbs and sprints.

The gearbox will feature a windage tray eliminating that spray of oil from the gears, having had a couple of incidents of stripped teeth flying I don't want teeth and pistons/rods meeting one another.

Would undercrown cooling jets be a worthwhile addition, or are they only really required for high output turbo engines? I have a set of the usual BMW ones on the shelf, but if theres no point I'll not waste the time fitting them.

Thanks

They are fitted to many production cars that are naturally aspirated; if I was building a cooking motor of any aspiration; they are going to be installed. I see absolutely zero downsides; only benefits.?

To be honest I have been thinking the same, but thought I would throw it out there.

I think with the tray it’s defiantely worth it. Especially as you ah e them on the shelf.

Belt and braces, while they may not be required, like Dave said what's the downside ?

Phil.

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