heat soak

JOECHY · 07-25-2008, 10:30 AM

Can someone explain to me the signs of engine heat soak? I hear the term regularly but I don't fully undestand how to detect it.

Thanks

gomarlins3 · 07-25-2008, 11:27 AM

I believe it is when the engine bogs down when you start from a stop or try to go full throttle from low RPMS. I have never had it happen to me, but then I have had a CAI or boost pretty much from the start of ownership.

Neil · 07-25-2008, 11:34 AM

Up here in Canada we see and say things a little different, let me know if any match.........
Heat stroke, feet poke, teeth choke ...............................sorry for the smart ass reply there Joechy, as I just feel in a funny mood !

Neil

J'sS2K · 07-25-2008, 11:50 AM

I think it means when the engine produces an excess amount of heat.

kgf3076 · 07-25-2008, 12:17 PM

If you have one of those snorkel type CAI's made from metal, they generally run near the radiator. Because of the large amount of heat in that area, the CAI absorbs a lot of that heat. Heat + gasoline = very lean mixture. That lean mixture is not as combustible as your normal mixture. The car bogs down on take-off. Mostly noticeable when you're at a stop light and start to take off when the light changes. You'll know it's heat bog because your head will hit the steering wheel before the car decides to richen the mixture a bit to compensate.

tuna79 · 07-25-2008, 12:21 PM

Hot air contains less O2 so you'ld be getting a rich condition. Still bog you down but safer than a lean condition.

07-25-2008, 10:30 AM	#1 (permalink)
JOECHY Senior Member Join Date: Feb 2008 Location: Houston, Texas Posts: 563	heat soak Can someone explain to me the signs of engine heat soak? I hear the term regularly but I don't fully undestand how to detect it. Thanks

07-25-2008, 11:27 AM	#2 (permalink)
gomarlins3 "Enjoy the drive" Join Date: Jul 2005 Location: Kuna Idaho Posts: 4,693	I believe it is when the engine bogs down when you start from a stop or try to go full throttle from low RPMS. I have never had it happen to me, but then I have had a CAI or boost pretty much from the start of ownership. __________________ Yablownowitz Racing brought to you by Anytime Fitness. Happiness is a nice road, great weather, and driving the S with Sue in the seat next to me. "Whatever you do, where ever you go, enjoy the drive." I know for a FACT that the last year of production of the S2000 is 2003!!!!! After that, it will be the S2200 under an assumed name.

07-25-2008, 11:50 AM	#4 (permalink)
J'sS2K The Car Camera Mount Guy Join Date: Dec 2007 Posts: 1,591	I think it means when the engine produces an excess amount of heat. __________________ So you're heading to the track and you want to record your sessions. PM me for an in-car camera mount. For everything else, you're on your own! www.getgopod.com

07-25-2008, 12:17 PM	#5 (permalink)
kgf3076 Raconteur Join Date: Oct 2006 Location: I'm here, where are you? Posts: 1,918	If you have one of those snorkel type CAI's made from metal, they generally run near the radiator. Because of the large amount of heat in that area, the CAI absorbs a lot of that heat. Heat + gasoline = very lean mixture. That lean mixture is not as combustible as your normal mixture. The car bogs down on take-off. Mostly noticeable when you're at a stop light and start to take off when the light changes. You'll know it's heat bog because your head will hit the steering wheel before the car decides to richen the mixture a bit to compensate. __________________ "The BS stops when the green flag drops". In memory of David Weber - Malvern Racing

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07-25-2008, 11:34 AM	#3 (permalink)
Neil Senior Member Join Date: Dec 2007 Location: Ontario Posts: 1,458	Up here in Canada we see and say things a little different, let me know if any match......... Heat stroke, feet poke, teeth choke ...............................sorry for the smart ass reply there Joechy, as I just feel in a funny mood ! Neil

07-25-2008, 12:21 PM	#6 (permalink)
tuna79 Member Join Date: Feb 2008 Location: Panama City Beach Posts: 84	Hot air contains less O2 so you'ld be getting a rich condition. Still bog you down but safer than a lean condition.