darguy

Hey Gang,

I've got a coolant leak on my 99 FRC, which from the puddle location is probably the water pump or one of the hoses around it. I'll have to check it out after work. The car's my DD, but I run it on the local track as well. I've just gone over the 'what I've learned' thread again - and maybe I missed it, but I didn't catch anything on coolant hoses or water pumps. I seem to remember seeing some silicone hoses somwhere, but am not sure if that's necessary. Any recommendations, or is FLAPS good enough?

Last C5

If it's the pump, both


PRW

http://www.prwonlinestore.com/chevy_9.aspx

and LMP

www.lmperformance.com

have high flow pumps for the LS1/6/2s

OCCOMSRAZOR

LG Motorsport has silicone hoses.

http://www.lgmotorsports.com/catalog...oducts_id=1668

I think Pfadt carries them also.

RX-Ben

Is there any benefit to a higher flowing pump with the stock radiator? Or even with an aftermarket radiator?

darguy

Thanks for the feedback, guys. The 'leak' seems to have become intermittant or disappeared - a small puddle appeared just as I was parking it after auto-xing a couple of Sundays ago, perhaps it belched out an air pocket when it finally returned to idle after the 1hour drive home. I didn't drive it last week, and haven't seen anything actually come out of the car after getting it up to temp/pressure on my daily commutes this week. I'll have to keep checking...

This is an interesting question, if the limiting factor is the rate the radiator can dissipate the heat (which would have to factor in ambient air temp and air flow rate - fans and ram-air), then increasing the flow rate may just pump the not-cooled-enough coolant back into the engine. But, if the rad is not the limiting factor, then increasing flow rate should increase cooling...

96CollectorSport

Has anyone actually tried any of the pumps listed above? I'd be curious if they can handle the abuse given out road-racing/DEing etc.
TIA