Throttle body heater delete (Page 1/5) Yellow-88 AUG 29, 06:31 PM Hi I know the throttle body heater is there to help with icing but Yellow will probably stay home in the winter from now on. So there shouldn't be any problem deleting it. Is there anything I'm missing? Yellow is stock 2.8. 1985 Fiero GT AUG 29, 06:42 PM Some people might say it will ice up summer or winter, but considering how it gets bypassed when the thermostat opens, any heating from it will be negligible compared to the heat conducted by the metal all around, and having the exhaust directly below. I removed mine over 1000kms ago, driven cold mornings and hot afternoons, with no issues whatsoever, I found one of the little rubber hoses on the thermostat housing was just long enough to stretch and connect to where the other was, therefore no need to plug the holes, it just bypasses the thermostat with a 3" tube instead of about 5 feet and the throttle body. Yellow-88 AUG 29, 07:02 PM quote Originally posted by 1985 Fiero GT: Some people might say it will ice up summer or winter, but considering how it gets bypassed when the thermostat opens, any heating from it will be negligible compared to the heat conducted by the metal all around, and having the exhaust directly below. I removed mine over 1000kms ago, driven cold mornings and hot afternoons, with no issues whatsoever, I found one of the little rubber hoses on the thermostat housing was just long enough to stretch and connect to where the other was, therefore no need to plug the holes, it just bypasses the thermostat with a 3" tube instead of about 5 feet and the throttle body. My thoughts exactly. I've had side draft SU's ice up way back when and it's shocking to open the bonnet and see 2 giant snowballs. I agree, I'm sure the 2.8 throttle body gets warm enough and those tubes are just in the way. One could go so far as to modify the T-Stat housing and eliminate the little nipples. Patrick AUG 29, 07:11 PM I removed the TB heating lines about ten years ago on my Formula. I drive it year round in a temperate climate on the coast that does occasionally experience sub-freezing temperatures along with high humidity, and have had zero issues with icing of the TB. I connected the two nipples on the thermostat housing the same way as mentioned earlier. Yellow-88 AUG 29, 07:49 PM Cool. I plan to replace all the original cooling system hoses ( some looking pretty swollen ) so the throttle body heater will disappear then. The little bypass tube is easy enough. cartercarbaficionado AUG 29, 09:52 PM if you keep the egr installed (but no vaccum) it syncs a bit of heat Into the throttle body. but the coolant is definitely redundant and just to keep it around a certain temp range but just like the cold start injector it is certainly not required 82-T/A [At Work] AUG 30, 10:40 PM If you're concerned about keeping it looking stock, you can keep the steel lines attached, and just by-pass the lines where they connect. I leave mine connected, and I'm in South Florida... but honestly, unless I lived in Canada or Alaska, it probably doesn't do much. pmbrunelle AUG 31, 08:45 AM Icing will not happen in below-freezing conditions. Cold air cannot hold much humidity. Cold air is dry air. Icing can happen with humid air, that is still just cold enough. ************************************************************ I deleted the throttle body heat on my Fiero, but I soldered pennies to block the holes. It seemed like a better idea than having two possible leak points with a rubber hose clamped at two ends. Yellow-88 AUG 31, 09:12 AM quote Originally posted by pmbrunelle: Icing will not happen in below-freezing conditions. Cold air cannot hold much humidity. Cold air is dry air. Icing can happen with humid air, that is still just cold enough. ************************************************************ I deleted the throttle body heat on my Fiero, but I soldered pennies to block the holes. It seemed like a better idea than having two possible leak points with a rubber hose clamped at two ends. The day my SU's iced up was about 40 deg and foggy. The snowballs completely buried the throttle bodies. Soldered pennies? that's interesting. Yellow-88 AUG 31, 09:19 AM quote Originally posted by 82-T/A [At Work]: If you're concerned about keeping it looking stock, you can keep the steel lines attached, and just by-pass the lines where they connect. I leave mine connected, and I'm in South Florida... but honestly, unless I lived in Canada or Alaska, it probably doesn't do much. No need to look stock, I'm more interested in cleaning it up. A sports car shouldn't have anything on it that doesn't make it go. And, those tubes add at least a few ounces of dead weight !! https://www.fiero.nl/forum/icons/icon7.gif