Billet

iTrader: (60)

Hi, i recently fitted a japspeed fmic on my car along with other mods and had it mapped to over 400 bhp. A smaller overflow bottle was supplied with the fmic kit. I fitted it and all was well until i booted it after the remap. When cruising its ok but as soon as i give it a couple of hard runs it keeps blowing the overflow cap off. I did a coolant change aswell before the remap so it could be airlock related. Has anyone else had this problem or know a way around it?

Cheers

saiklon

The overflow cap is supposed to have a pinhole in it to help to equalize pressures. Maybe your new overflow cap does not have one?

Do you have any signs of overheating like coolant levels dropping?

GezP

iTrader: (23)

Had the same issue mate, they're ****. Get rid of it. That cap will not stop popping off. I even tried a beed of silicon.

Get something like this:

http://www.ebay.co.uk/itm/Alloy-wate...item519971c259

If you go for something like this, let me know and I'll take pictures of mine

GezP

iTrader: (23)

It's not the cap thats the problem mate, the bottle they supply is ****. The lip that the cap fits over is half the size as the original subaru one. Thats why it can't fasten down properly and keeps popping off

timthebat

iTrader: (14)

As above the cap doesn't fit the bottle, I also had issues with the piece of fuel pipe that was supplied which I replaced also.