drbenne

I have been having problems with the power steering fluid overheating and overflowing the reservoir since I have owned the car. It is a '01 zo6 and I run gm synthetic powersteering fluid. I have recently replaced the rack and pinion and hoses. It has the factory cooler.

any ideas on how to improve the cooling?

Falcon

It won't help the cooling, but it will help the overflow. Try putting less fluid in the resovior. That was recommended to me and it kept the fluid from puking out.

Cobra4B

Maybe try redline SYN fluid? I've never had a problem. Can you overdrive the PS pulley to slow the pump down?

drbenne

I have heard of people doing this, but really doesn't seem like slowing the pump would necessarily improve cooling. I would imagine there is some pressure regulator that limits the pumps output as RPM varies and therefore, changing the pulley ratio wouldn't affect the pump output.

Cobra4B

I've always heard that overspinning the pump is what makes the fluid overheat.

Not sure though... never had an issue... have stock Z06 PS cooler.

Feffman

We've had the same problem in the CTS-V. Cooler is too small. We have two choices:

1) Go to larger cooler from Summitt.
2) Flush using Red Line power steering fluid.

I went with #2 and no problems.

Feff
www.MVPTrackTime.com

AMERICANMUSL

Cooler switch definately...IMO that thing is so inefficient. I would switch to a turn-one pump first however, then try a cooler...I went to a narrower deeper MOCAL.

Kinkajou

I just got a pump from "Turn-one steering". They modify more than 50% of Nascar racecars so they have a lot of experience.

They modify the pump so the output is less, thus lowering temperature and friction on the pump. And that would correct vette problems.

I am still waiting for pressure hose to take the Vette for a spin and take it to a Track day. By the way I have a 94 with an LT1 engine so maybe there is a new solution for your pump.

It is supossed to correct the problem with steering. So maybe you should give them a call and see if they can help you.

joemoia

Roy

Call the guys at Turn One

http://www.turnone-steering.com/index.html

I talked to them and they explained how their pumps work vs. the OEM pump to alleviate fluid overheating. I don't know if you can use their pump in T-1 class

varkwso

Here is another vote for the Turn One option..

ErnieN85

Slowing the pump does help. the bypass (pressure regulator) is an internal bypass and does heat the fluid.
I think that is one thing that makes the turn one pump such a good idea.
for on track (high rpms) it's turning plenty fast!

AMERICANMUSL

Oli runs one!!

73-84 IMSA Widebody

Just FYI, KRC racing pump and return side external cooler, no problems.

StArrow68

Another poss., I had PS issues and thought it was the fluid level. Turns
out my external oil cooler line (SS) had rubbed one of the PS (alum)
lines but not enough to leak, just thin enough to seep under pressure.
Might check tubes to and from cooler.