Radium surge tank

[CSG Mike]

Originally Posted by Turbo

Understood.


Mike - what have you done to combat this issue with your track car? You're running a boosted setup with similar HP to me in your '86.

I have had zero problems to date in mine -- but I also haven't driven any tracks with long, left hand sweepers. I will be driving a few new tracks this coming season, and I'd rather solve this issue before running into it.


I do have an idea - anyone have a picture of the top of an FRS/BRZ fuel tank out of the car I can take a look at??

I've not yet found an optimal solution yet. I run hydramat, and literally fill up my tank to the brim before each outing.

[dgilliesau]

Originally Posted by Turbo

You sure it's installed correctly? No problems with your fuel pump?


I'm boosted and can practically run down to vapours without issue. I see close to 2G's cornering and consistently hit 1.4G's braking on the track.

How have you achieved this? I installed the flap which improved starvation on th Amaroo circuit with 2 consecutive left handers, but on the Sydney Motorsport Park I starve halfway down the straight after the 2 long left handers that lead onto the straight. It's like having a rev limiter at 6000rpm in 5th.

Now looking at what to do next.... Ideas?

[Scargod]

I've a new 2022 BRZ and am wondering if in 2020 or 2022 they have addressed the fuel starvation issues or is still the same problem/same fuel pickup design?

I've had to run the tank full in my STI. I had some foam in the tank at one point, that helped. Then some of it disintegrated and made a big mess.
I've thought of getting the Hydramat.
It seems only one person mentioned it and it was not a solution? I'm surprised.

If I must do a surge tank it sure as hell won't be in the engine compartment and I'll put in a fireproof bulkhead. First, I'll think hard about a manually actuated transfer pump for the right side.