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Blackjack
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I'm looking to do this very thing. If you can please share what harness and/or adapter is required to make the Pierburg work with the Roush harness, it would be greatly appreciated!
brucelinc
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For those who have done this, what differences are you seeing in iat2 temps? I have trouble wrapping my head around why moving the exact same amount of coolant more quickly is a big advantage. Is the idea that the coolant will go through the IC more quickly....and thus pick up less heat? Won't it also flow through the heat exchanger more quickly....and not be cooled as much? It seems that those two things would equal out.
I am not arguing with the logic of doing this but would like to understand it better.
I am not arguing with the logic of doing this but would like to understand it better.
Blackjack
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Check out Dept. of Boost website. It does into great detail as to why more flow is better.
JasinEdward
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Jason from department of boost provided me with the best info in an email.... here it is....
"Here is the thing. Intercooler systems are just that, a system. Upgrading just one component doesn't make a big impact. It's when you upgrade it as a system that you get results. For example:
-Your current pump moves 5.5gpm
-The next pump up is the Pierburg CWA50 (stock 13' GT500). That will get you 9gpm. This one is about $285 and draws the same amperage as your current pump (6 amps).
-The next pump is our POWA pump which will get you 10.25gpm. This one is $375, huge and draws 26 amps.
You would think that the Pierburg would be the way to go. Here is the problem. 9gpm isn't nearly enough to keep it cool. You need a bare minimum of 14gpm (more depending on boost level, etc). So if you get the Pierburg you have spent money on a half measure.
Another way of looking at it is to go with our Super Single heat exchanger (which has 1" fittings opposed to most others at .75"), 1" lines and the POWA pump. That's only going to get you 11.25gpm. Still not enough.
You're running into how restrictive your intercooler is. That Super Single, POWA pump and 1" lines flows 22gpm on our intercoolers as an example of how much the intercooler design is a factor.
The only chance you have of keeping it cool is with our not yet released S550 Titanic heat exchanger that has 1.25" fittings, the POWA pump and 1.25" lines. That will get you 16gpm. That's as good as it gets through that Roush intercooler.
There is no clear cut answer as to what direction to go. You need to weigh your goals, expectations, budget, timing, etc and do what's best for you. If I was you (I'm assuming you want it to run cool some day) I would buy a cheap replacement pump just like you have now with plans on upgrading the entire system to the Titanic, POWA pump, 1.25" spec in the future. Anything less and you spent a pile of money to end up way short.
Told you it's complicated.
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brucelinc
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Based on everything I have read and in chatting with my Ford Performance tech, if I wanted better cooling, I would replace the smallish Roush HE with a larger unit and upgrade the pump at the same time. Moving MORE coolant through a larger HE with larger lines seems like a better approach than just trying to move the same amount of coolant through the same little HE and the same little lines but doing it a little faster.
I have no issue with how the stock system works in my climate and with my needs. However, I look forward to hearing the results from you guys who replace your pumps.
I have no issue with how the stock system works in my climate and with my needs. However, I look forward to hearing the results from you guys who replace your pumps.
Blackjack
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I wonder what good is a “system” that has a larger heat exchanger and 1“- 1 1/2“ lines if the inter cooler inlet/outlet remains at .75”? Wouldn’t this restriction render at least the larger lines moot?
JasinEdward
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I was thinking the same, but I think DOB could answer that better.
Blackjack
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Per the Dept of Boost response that Justin posted above, it’s the weak link by design, doesn’t matter what you throw at it. Unless you were to have the Intercooler inlet/outlets modified, 16 gpm is the best you can do with an enormous heat exchanger and heavy duty pump with 1” lines. I’m beginning to feel like the juice isn’t worth the squeeze.
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