h1psi

Is it possible to bypass this aux. water pump? I figure the less variables for potential coolant leaks and problems the better.

Has anyone done this?

Regards,

Steve

Perry 951

Yes you can, but it is not advisable for a street car. Having water circulate in the turbo is crutial to the longjevity of the turbo. On shutoff, the pump continues to cool the turbo. I would leave it be, and if leaking, replace the defective parts.

eclou

The PO of my 86 951 had it done albeit unknown to him. The monkey that changed his last WP put in the block plate instead of the turbo thermostat housing and even reconnected lines to it! My turbo wp was cavitating air to the turbo on shut-off. I estimate this has been that way for 20k miles. The car still seems to do very well - boosting to an estimated 1.1 bar with the LBE and stage II chips.

I think the cost of replacing a cooked turbo will be far greater than maintaining a leak free cooling system. If it is a track only car you could do sans thermostat though.

Eugene

h1psi

Perry951,

I was not suggesting to bypass the water cooling to the turbo, but just to bypass the pump itself so that water freely flows through the turbo like in most modern water cooled turbos, such as Talons etc...

I think it is overkill to have the extra pump to push water through the turbo upon shutdown.

Whaddya think?

Luke

I would think it possible if the water flowed from north to south. But that how our oil flows. I dont think the water would have enough incentive to move <img src="confused.gif" border="0">

h1psi

Luke,

The coolant system is under pressure, with no air pockets, therefore gravity should not matter.

All I am wondering is if anyone has bypassed the electric aux. pump that serves to pump coolant through the turbo after shutting down the engine.

I was thinking of just connecting the inlet hose to the aux. pump to the outlet hose of the aux. pump.

I haven't physically looked to see if this is possible, but wanted to know if someone has already done this.

Steve

Luke

The pump is there because the pressure isn't great engouh to get the water to run up hill for 6 inches into the tank. I dont think its such a cool idea (no pun intended)

if the turbo was higher than the resovior, maybe.

h1psi

Luke,

Are you saying that the pump is always on then?

I thought it only came on sometimes?

Steve

Luke

I am pretty sure that it is always on, and on for 10seconds after you turn the motor off?!?! <img src="confused.gif" border="0">