Better Flowing Intercooler For Rb25 In R32

[Harey]

I had some bungs welded to inlet and outlet pipes from the cooler. That way you can measure the pressure difference and see.

[Russman]

The cooler was definitely the restriction. I got the blitz kit and now we're making 280 on 19psi. We wound it up to 20.5 accidentally and it made over 300 so yeah. Happy that it's no longer held back.

thanks for help and comments guys.

I thought I would put up some photos for you guys of the 2 coolers and where I think the restriction was.

The PWR with 2.5in ends. Note the surface area inside the core. Very efficient at cooling I would think. not so good for flow.

The Blitz with 3in ends. Might not be as good at cooling but much better for flow.

I reckon the PWR would still be awesome for a low output setup (like my old RB20) but for outright flow and power the Blitz was the way to go