Water pressure on a Ficth

[ksoskeeter]

Anyone no how much I need for a 99 225 at full throttle and what should it be at idle

[ranger1055]

I have an 04 HO and it runs about 4 at idle and about 14 - 16 at WOT

[SEAHORSE]

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ksoskeeter &raquo;</TD></TR><TR><TD CLASS="quote">Anyone no how much I need for a 99 225 at full throttle and what should it be at idle</TD></TR></TABLE>

2001 and later FICHTs used a low pressure high volume cooling system and thus the 14-16 psi at WOT.

Your '99 225 used the older style high pressure system and I believe it should run around 25psi or better.

[ChampioNman]

Yep you can peg a 30 PSI gauge if you are low on the transom less than 18 is bad Juju. About 6-8 at idle.

[ksoskeeter]

This thing is on a Gambler 2200

[ChampioNman]

I'd keep it close to 18# min. WFO, change prop or lower the plate sumptin. Keep it 18#+.