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Old 09-26-2010, 11:23 AM   #1
acssa
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Member#: 184023
Join Date: Jul 2008
Location: south Africa
Default waterpump-over heating

So our quest to solve the overheating on the track goes on....

On the circuit track the car runs 86 deg C when revving up to 6000rpm.
Rev over 6000 to 7000 and the heat shoots up to 115 deg C

Why? Cavitation?
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Old 09-26-2010, 01:14 PM   #2
BlackJavaPearl04
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Member#: 198522
Join Date: Dec 2008
Chapter/Region: Tri-State
Location: Up State NY
Vehicle:
98 LGT Limited
00 LGT -WRX swap

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do you have an upgraded cooling system?
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Old 09-26-2010, 01:45 PM   #3
dexterous
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Member#: 23553
Join Date: Aug 2002
Chapter/Region: MAIC
Location: Slippery Rock, PA
Vehicle:
2005 STI - Insanity!
2014 WRX - Daily

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Quote:
Originally Posted by acssa View Post
So our quest to solve the overheating on the track goes on....

On the circuit track the car runs 86 deg C when revving up to 6000rpm.
Rev over 6000 to 7000 and the heat shoots up to 115 deg C

Why? Cavitation?

This is water temp or oil temp? Can you provide us some info about your car? A description of the motor, cooling system, power output, etc would be somewhat helpful.

I have a totally stock long block on my 2005 STI but make pretty substantial power. My car got pretty hot at the track so I installed a large 25 row Setrab oil cooler and it really helped a lot.
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Old 09-26-2010, 03:42 PM   #4
acssa
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Member#: 184023
Join Date: Jul 2008
Location: south Africa
Default

1.The cars has a water temp problem.
2. 440 WHP
3. used two engines 2.7L with 9:1 CR and a 2.5l 8.5 CR complete with heads, water pumps, oil pumps the lot
4. use bigger radiator....Ron D
5. Use oil cooler 17 rows
6. used cooler thermostat and no thermostat.
7. TMIC and no AC items... full caged stripped race car.
8. used water only and also water wetter.

Like I said we can drive to 6000rpm no problem...going to 7000 cooking!
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Old 09-26-2010, 05:46 PM   #5
nhsilversti
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Join Date: Dec 2003
Chapter/Region: NESIC
Location: southern NH
Vehicle:
. www.48hrs.info
donation chairman

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you need to use the wrx(?) water pump, it has a cast impeller and supposedly does not cavitate
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