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« Last post by dsrace on June 18, 2019, 11:25:16 AM »
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« Last post by fabr on June 17, 2019, 12:36:27 PM »
The one pass or two pass debate to this day still rages on.
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« Last post by dsrace on June 17, 2019, 12:00:15 PM »
higher cyl pressure does increase heat, on top of hotter exh temps and oil temps etc etc. this is where a great innercooler and e85 come into play for best results. i run a 2 core 2 pass radiator on my turbo 4cyl. i believe it's a 2 core, 31" x 16 or 17" tall and 2 pass.
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« Last post by big dave on June 17, 2019, 10:33:22 AM »
Thanks Big Dave. I had my finger on the "buy now" button on that radiator, but it was a little too big for my space. I bought a 16" X 29" X 2" with dual fans. I am guessing that yours is turbo. If so, do they make more heat than n/a? I plan on calling Outfront about safe rpm, but what is your opinion?
Yes mine is turbo. I would thank the add heat from the oil retuning for the turbo would add heat. as for rpm limit. mine is set at 6800 from outfront.
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« Last post by BrianN on June 17, 2019, 08:29:21 AM »
Thanks Big Dave. I had my finger on the "buy now" button on that radiator, but it was a little too big for my space. I bought a 16" X 29" X 2" with dual fans. I am guessing that yours is turbo. If so, do they make more heat than n/a? I plan on calling Outfront about safe rpm, but what is your opinion?
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« Last post by big dave on June 17, 2019, 06:02:15 AM »
best bang for the buck. works great on my 2.5 suby. Aluminum 3 fans. I only run two fans and it cools it great. my scope gets in the way of the center fan. I run the 219.99 one the fans mounting system is better on it. This is on Ebay. 
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« Last post by BrianN on June 16, 2019, 04:59:22 PM »
I just ordered a radiator twice as big. Dual fans. It would reach 210-220. I would just stop and the fan would take it back to 190 pretty fast. I never turned it faster than 4000 rpm. I have the Stinger ecu from John.
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« Last post by Yummi on June 16, 2019, 02:13:03 PM »
Hi harvey0,
Tell us a bit about yourself?
Any cool projects on tap? Prior experience?
Do you have the winning lotto numbers?
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« Last post by dsrace on June 16, 2019, 01:32:09 PM »
i agree with fabr......spal fan all the way. cfm rating is key. what temp did it hit at its hottest? if your running the stock ecu then it has a factory rev limiter. if you have an aftermarket ecu then you can set it. if you can set it then i would say 6k rpm would be safe enough until you find some hard data. there a few suby guys on here that should be able to tell you.
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« Last post by BrianN on June 16, 2019, 10:56:52 AM »
Too big of a ratio gap between 2nd and 3rd. I also need to research the safe Max rpm of a stock 2.5. I didn't expect the old used stock clutch to work, but it did. I couldn't push it hard for very long at a time, because the engine temp would go up.
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