Smaller water pump pulley? Does it exist?
Smaller water pump pulley? Does it exist? I need to spin my water pump a little faster at idle. Temp climbs at idle with ac on, if i idle it up 200-300 rpm then it doesnt creep up in temp. I have an under drive pulley, which I CANNOT get rid of because my turbo drain would hit t he stock pulley. I have the idle set at 650, 850 is too high for my small cam. So I figure a smaller water pump pulley would help offset it. Anyone seen one before?
Can't say I have. I don't even know if you can remove the pulley from the factory pumps... Are the temps climbing to the point where the car is overheating? Are your fans kicking on with the A/C on? Should be that the car gets warmer, but as the t-stat opens it'll reach equilibrium, then when you drive the temps will drop.
Only thing I could offer as an upgrade is an electric water pump.
Only thing I could offer as an upgrade is an electric water pump.
Can't say I have. I don't even know if you can remove the pulley from the factory pumps... Are the temps climbing to the point where the car is overheating? Are your fans kicking on with the A/C on? Should be that the car gets warmer, but as the t-stat opens it'll reach equilibrium, then when you drive the temps will drop.
Only thing I could offer as an upgrade is an electric water pump.
Only thing I could offer as an upgrade is an electric water pump.
car doesn’t overheat but it’ll get to 215-217 on a hot day in a fast food drive through. The fans come on at 165, both of them.
electric water pump is way too far out of my budget unfortunately.
whats your setup ? with a LT1 rad and 160 stat mine hardly gets above 205....in a long idle.....according to the dummy gauge
have you adjusted the computer to a lower fan temp ?
have you adjusted the computer to a lower fan temp ?
9.5:1 compression
stock water pump
larger aluminum radiator
dual speed stock fans
243 heads
222/233 cam
7875 turbo
large trans cooler
3600 tight stall, with lockup
ac
Well yea, the fans would normally come on at like 205 but I have them coming on at 165.
I just need to spin my water pump faster, I'm trying to avoid having to machine a pulley, but if I have to, so be it.
I think if you turn the pulley faster you may risk cavitation
with what you have it seems it would be plenty cool....do you have a real temp gauge or just the dummy gauge ?
what coolant are you using ?
with what you have it seems it would be plenty cool....do you have a real temp gauge or just the dummy gauge ?
what coolant are you using ?
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I have a digital temp gauge
1) it displays on my driver info screen in exact numbers
2) on my hp tuners scanner
3) I have the torque app on my radio
I’m using dexcool at a higher water percentage, one bottle of redline water wetter.
it’s not plenty cool at 215-217 degrees for a turbo engine. In my opinion. I prefer it 185-190.
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correct. I don’t have to start moving though. I can give it a little more rpm, starts coming back down. Like said, I have an underdrive pulley and the idle rpm is only 100 rpm higher than stock because I have a smallish cam. This tells me the water pump isn’t spinning quite fast enough.
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correct. I don’t have to start moving though. I can give it a little more rpm, starts coming back down. Like said, I have an underdrive pulley and the idle rpm is only 100 rpm higher than stock because I have a smallish cam. This tells me the water pump isn’t spinning quite fast enough.
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Joined: Jun 2016
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From: Central Cal.
I know you don't like the higher temps, and I can't blame you, but as long as it's ONLY while idling, AND it cools as soon as it goes above idle, no possible harm can come to your engine.
It sounds like it just does not flow fast enough, as you mentioned.
Ever thought of swapping out the underdrive pulley for the stock one again? Or do other gremlins show their ugly face again?
It sounds like it just does not flow fast enough, as you mentioned.
Ever thought of swapping out the underdrive pulley for the stock one again? Or do other gremlins show their ugly face again?
so if I turn the pump the same speed as stock, it’s going to cavitate? Can you explain how that would happen? I have an under drive pulley on the crank right now. Slowing the pump down from stock. It’s obviously not pumping enough water because if I raise idle speed by a little, it cools down. I know by that, it needs to turn a little faster.
I have a digital temp gauge
1) it displays on my driver info screen in exact numbers
2) on my hp tuners scanner
3) I have the torque app on my radio
I’m using dexcool at a higher water percentage, one bottle of redline water wetter.
it’s not plenty cool at 215-217 degrees for a turbo engine. In my opinion. I prefer it 185-190.
I have a digital temp gauge
1) it displays on my driver info screen in exact numbers
2) on my hp tuners scanner
3) I have the torque app on my radio
I’m using dexcool at a higher water percentage, one bottle of redline water wetter.
it’s not plenty cool at 215-217 degrees for a turbo engine. In my opinion. I prefer it 185-190.
you did not mention your stat temp
I would not use water wetter with dex cool....I dont think those chemicals play nice together .....for ***** n giggles try distilled water with the appropriate amount of water wetter and see if it makes a diff
correct. I don’t have to start moving though. I can give it a little more rpm, starts coming back down. Like said, I have an underdrive pulley and the idle rpm is only 100 rpm higher than stock because I have a smallish cam. This tells me the water pump isn’t spinning quite fast enough.
I know you don't like the higher temps, and I can't blame you, but as long as it's ONLY while idling, AND it cools as soon as it goes above idle, no possible harm can come to your engine.
It sounds like it just does not flow fast enough, as you mentioned.
Ever thought of swapping out the underdrive pulley for the stock one again? Or do other gremlins show their ugly face again?
It sounds like it just does not flow fast enough, as you mentioned.
Ever thought of swapping out the underdrive pulley for the stock one again? Or do other gremlins show their ugly face again?
I'm afraid on an even hotter day, its going to climb higher. It;; get to 98f here sometimes, that day was a "cool" 91ish day. it wasnt as humid as it can get. So i'm trying to be proactive.
I am only guessing at cavitation ...but it may be a real concern if exceeding the stock parameters for pulley speeds
you did not mention your stat temp
I would not use water wetter with dex cool....I dont think those chemicals play nice together .....for ***** n giggles try distilled water with the appropriate amount of water wetter and see if it makes a diff
you did not mention your stat temp
I would not use water wetter with dex cool....I dont think those chemicals play nice together .....for ***** n giggles try distilled water with the appropriate amount of water wetter and see if it makes a diff
I may just get higher flow pump. that should help.
That's definitely too hot for my taste, I always prefer to run in the 180's at idle. Have you tried to simulate the solution by setting the idle higher? Idle it at 900 and see if it does fix your cooling concerns at idle.