LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Trying to dial in the cooling system for my turbo set up, couple ?'s

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Old 01-06-2013, 03:31 PM
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Default Trying to dial in the cooling system for my turbo set up, couple ?'s

So with my front mount turbo kit i have already gone with a CSR pump in the stock housing, housing has the hose that normally runs to the driver lower 1/2 hose i believe is welded up, i am running a Griffin 55241-X radiator vertical, but i have some other questions to dial the cooling system up.

1. Should a run a 160 t-stat and a JET performance 160 water pump temp sensor?

2. 160 T-stat with stock temp sensor in pump

3. Stock new T-stat and stock temp sensor

After test fitting the turbo again i will decide on fans.

Thanks.
Old 01-06-2013, 03:56 PM
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160 stat with the fan temps lowered in the pcm stock temp sensor, no additional aftermarket switches or anything unless you are wiring them for between passes cooldown, let the pcm handle the fans during driving and normal operation.

You realize the electric pumps are LOWER FLOW than stock right, and the CSR not even high flow as compared to other electric pumps? If you are stressing over cooling why did you put a low flow pump on it?

If between passes cooling was the goal then there are inline pumps that would have done that without having to resort to a low flow main pump.
Old 01-06-2013, 03:57 PM
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Just buy the 160 t-stat and get your computer tuned to come on earlier.
Old 01-06-2013, 04:00 PM
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I ran a CSR pump for 10 years. never failed and never even got close to over heating even on high speed long distance runs. Think triple digits and 90 minutes
Old 01-06-2013, 04:06 PM
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Originally Posted by TwoFast4Lv
I ran a CSR pump for 10 years. never failed and never even got close to over heating even on high speed long distance runs. Think triple digits and 90 minutes
There was a bad batch of csr pumps. I two and both had to go back and summit replaced them with another brand.
Old 01-06-2013, 04:11 PM
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Just to be clear the CSR might be fine. I just find it rather stupid you bought a lower than stock flow pump and then proceed to worry about the cooling system.

With 4.10s in A4 cars and the 30GPM pumps like CSR/Summit/small Meziere many NA cars see cruise temps slightly raised from the stock pump. Not overheating but 3-5 degrees warmer as seen by the pcm.
The electrics are not the cooling upgrade most on the forums will tell you they are. Sufficient but not an upgrade.

I had a Summit on my car for awhile and the car ran warmer at 75mph than it did at 35mph even when it was 40 degrees out.

The electrics free up power by doing less work, the belief they free up power by "not being spun by the crank" is belief in perpetual motion because the crank spins the alternator which then powers the electric pump but the energy then has to be converted from rotation to electricity and back to rotation. Sure there are gains in efficiency by using a single speed better made impeller and the pump does not have to accelerate the water they way the mechanical does. Those gains are not substantial enough to do more work(water flow) with less input effort though.
Old 01-06-2013, 05:34 PM
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I've had the CSR for 5 years and never had a problem yet, i have ran it as a DD, to a custom cam with a stalled built auto setup still DDing it and have never had a issue, hell it always ran 5-10 degrees lower in temp, so it will stay.

Also the water pump housing has been milled a 1/8 where it meets the block due to wanting a little more clearance between the CSR and the turbo. I never asked your opinion on which pump i am running, i was asking about the T-stat and temp sensor.
Old 01-06-2013, 05:57 PM
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You have the lowest flow pump available for this engine and are concerned with cooling........................................... ................................
Old 01-06-2013, 08:57 PM
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Electric pumps provide less flow at higher engine rpm but more flow at lower rpm compared to the mechanical pump.
Old 01-06-2013, 09:35 PM
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I have had NO heating issues up to this point with this pump, so till there is i will not change it, at idle im sure it flows just as much of not more then a stock pump, at speed im sure the fans move enough air to keep **** cool, my griffin radiator and some nice upgraded fans over stock, a 160 T-stat and setting the fans to kick on lower i don't believe i will have any issues, if i was concerned with my pump i would have asked you.
Old 01-06-2013, 09:59 PM
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I ran the SLP fan switch. it was nice. It has 3 settings high low and auto witch will run off the computer. With a hyper tech 160 t-stat. Never got over 170. And at the time i lived in the mountains and worked in the valley
Old 01-06-2013, 10:20 PM
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I run a SLP switch on my WS6 and was thinking about buying one for this car just in case type things, and i like being able to cool it off sitting there so the CSR and the fan switch do the trick.
Old 01-06-2013, 10:29 PM
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SLP 160 T-stat ordered, will be using the stock temp sensor and probably a SLP fan switch just to be safe.

Thanks guys.
Old 01-07-2013, 04:24 AM
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i also had the csr. It was nice for track days. good luck with your car man
Old 01-07-2013, 08:29 AM
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Originally Posted by WhistlingZ
Electric pumps provide less flow at higher engine rpm but more flow at lower rpm compared to the mechanical pump.
Kind of nice when stuck on stop and go traffic on a hot day with the A/C on.
Old 01-07-2013, 09:01 AM
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I like that I can turn the car off and run the electric pump and fans to cool the motor between runs.

Overall my systems cools very well with that same radiator, and a 16should e and 1 stock fan pulling through a custom shroud and a smaller pusher fan on the other side. You should be fine with a similar setup.
Old 01-07-2013, 10:03 AM
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Exactly. I can cool the engine down in minutes with the e-pump and fan switch just as long as I remember to turn the **** off so I don't kill my battery. It beats pushing your **** through the staging lanes.
Old 01-07-2013, 04:24 PM
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Originally Posted by SS RRR
Exactly. I can cool the engine down in minutes with the e-pump and fan switch just as long as I remember to turn the **** off so I don't kill my battery. It beats pushing your **** through the staging lanes.
Wrong. It flows less than stock and is bad. Bad! 96caprice said so, and it is now in stone as such.



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