DIY Throttle Body Radiator Fluid Bypass Decrease AIT Increase HP - Page 3 - Hyundai Genesis Forum
Engine and Turbos This section is for discussing engine parts (for example, bottom or top end), turbos (upgrades, porting, etc), or other engine related parts or swaps.

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post #21 of 67 Old 02-03-2010, 06:18 AM
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It's also used as a sort of "IAT equalizer" by manufacturers by making the IATs more predictable in one sense. I can see where woomdawg is coming from stating that past a certain temperature threshold, IATs would be higher than coolant temps but this should not be occurring on enough of a regular basis to warrant not bypassing the coolant loop. The stock IAT sensor reads from -40 to 176 degrees F which leads me to believe that normal IATs should be well within that range. Even with a 160 degree thermostat the coolant temps will still be around 180 degrees or more so that temperature difference is enough to add a few degrees to the IATs from the heating of the IM due to the TB coolant loop. Overall, bypassing the TB coolant loop may not net tremendous gains but if it reduces IATs by a few degrees it's definitely worth it since it's free.

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post #22 of 67 Old 02-03-2010, 09:39 AM
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i'm debating on this one, what do you guys think tufast and MSUgeo?, and i cant really see the pictures that well to do it if i wanted to.

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post #23 of 67 Old 02-03-2010, 09:44 AM
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I've done it on every car that's had this feature for the last 15 years. Never a problem in the winter before but won't drive the coupe in the winter anyway.

Looks like there are two hard pipes coming over across the front of the motor. You just unhook the hoses and loop one around.
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post #24 of 67 Old 02-03-2010, 03:18 PM
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Personally, I will be doing this when I put my car back together. I'll take every pony I can get, especially since I'm planning on pushing hard to get to my power goal. Also, IT'S FREE and completely, easily reversable if adverse effects occur, I think those two facts alone make it more than worth a try.

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post #25 of 67 Old 02-03-2010, 04:40 PM
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Well I would love to dyno B4 & aft just to see the results, because many people stated they felt positive results using the RRM FC & checking with their butt dyno only to find out later on a real dyno they were losing power....LoL

I'm willing to try it due to the ease of said mod, the fact it is free & I don't see where it would have any detrimental effects. The IATs won't be too high that often if you are running a CAI w/blockoff & a big FMIC

BTW Joshua, the mod is super easy, you are just making a loop with each line. I will repost DIY when I do it with new pics.

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post #26 of 67 Old 02-03-2010, 09:54 PM
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awesome i'll check it out when its up ^

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post #27 of 67 Old 02-04-2010, 09:38 AM
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You sure won't loose power doing this mod. It does not make power though only preserves it.
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post #28 of 67 Old 02-04-2010, 05:33 PM
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yeah i wanna see pics too
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post #29 of 67 Old 02-09-2010, 01:37 PM
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While not a GC, here is a dyno of at least one car showing gains from bypassing the throttle body coolant tube...

Modifications #8

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NitroGen
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post #30 of 67 Old 02-09-2010, 01:49 PM
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Interesting dyno for sure. I wish I could find some hard results like that for a 4 cylinder motor, all the results I seem to find are for Ford/GM V8's... maybe divide their gains by 2 ?

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