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Race Precision Intercooler Installed
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05-20-2008, 06:01 PM | #1 |
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Race Precision Intercooler Installed
I've just installed the RP Intercooler, which claims dynos of 26 extra hp. Unfortunately I haven't felt any power increase actually i've just felt lag at 4k RPM. I have felt more power when I installed the Gruppe M intake which is known to add more power. The temprature outside is 80 degrees.
Now after a couple of runs my oil temp is 3/4 of the way between the 210 slot and the 300 mark towards the 300, which is the same as when I run stock. The only difference is that close to 110mph as i'm speeding it reduces one or two marks and as soon as I slow down it goes up a notch. I heard somewhere that the oil temp doesn't exceed the middle mark on intercooled cars. Is this true, is there something wrong with my intercooler? Can some of you big boys with hands on experience whether w RPI or others chime in and help me out. N.B. There are no dynos here so I can't test it out except when I race some of the other cars to see the difference. Last edited by 335i black/red; 05-20-2008 at 06:31 PM.. |
05-20-2008, 06:22 PM | #7 |
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05-20-2008, 09:21 PM | #9 |
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05-20-2008, 10:46 PM | #11 |
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05-21-2008, 12:42 PM | #12 |
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Make sure the intercooler is installed correctly. You do NOT need a custom tune for the intercooler to work or do its job. The purpose of the intercooler is to cool charge air temperatures and there is absolutely no way the stock cooler is more efficient.
- check o-rings - check c-clips - check to make sure that your tune can adapt to it like the stock tunes can. once again, YOU DO NOT NEED A TUNE TO BENEFIT FROM THE INTERCOOLER. |
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05-21-2008, 12:46 PM | #13 |
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A car will ALWAYS benefit from colder charge air temperatures, why do some people on the forum believe you have to have a 'tune' in order to take full advantage of an IC???
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05-21-2008, 12:47 PM | #14 | |
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Yes cooler air means a cooler charge and more efficient burn, but it is not significant enough to dictate hotter or colder oil temps. NO WAY.
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05-21-2008, 01:00 PM | #15 | |
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05-21-2008, 01:45 PM | #17 |
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Because everyone knows the colder temps are accounted for without a tune, but perhaps you could explain how the lesser IC pressure drop can be taken full advantage of without a tune?
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05-21-2008, 01:49 PM | #18 | |
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Double the efficiency with half psi of pressure drop, you dont need to retune. The maps are laid out and the ecu allows a certain amount of boost and timing depending on tps%, rpm, coolant temp, oil temp and IATs. These ECUs are not dummies and will learn/adjust for it. Our intercooler has a smaller width than the stock one to offset what would have been a significant pressure drop. |
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05-21-2008, 01:51 PM | #19 |
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The stock bumper opening flows more than what gets through the RPI IC,. So all the added frontal area benefits the IC. The tiny frontal area of the stock IC is the bottleneck in it.
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05-21-2008, 02:25 PM | #20 |
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so most of the hp gains are from the decrease in pressure drop? some were saying that they were boosting less but that wouldn't explain the increase in HP of 15-25rwhp.
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05-21-2008, 03:59 PM | #21 |
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