Anybody know the part # for the TRD 160 degree thermostat for a 97 80. Does it help with the cooling of Blown 80?
TRD thermostat
- Thread starter Taz
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It was a 00602-17620-440. I say was because TMS USA took over TRD sports parts distribution April 1st and they are in the middle of converting all the part numbers into a different form.
Bear in mind that this thermostat is not intended for the 1FZ but rather the 4.7 V8. It will fit in a 1FZ however. They are quite expensive, pushing 80 bucks I believe, and are not the answer to an over-heating problem. That is most often a radiator or fan clutch or head gasket or some combination of said components.
D-
Bear in mind that this thermostat is not intended for the 1FZ but rather the 4.7 V8. It will fit in a 1FZ however. They are quite expensive, pushing 80 bucks I believe, and are not the answer to an over-heating problem. That is most often a radiator or fan clutch or head gasket or some combination of said components.
D-
markt said:
Right or wrong, i have many mixed feelings about the trd thermostat that i will share here in the hope it then helps you with your decision.
First it is much more expensive than the regular thermostat.
Secondly and more importantly, any thermostat that opens sooner also allows the coolant to leave the radiator sooner. On the one hand you initially get cooler coolant flowing through the block and head but on the other hand cycle after cycle, the coolant gets less and less time in the radiator to transfer the heat. Now this probably only matters much when yer workin yer rig really really hard but this is when you would want the maximum cooling capacity.
On the other extreme of when you are putting around town, a lower temperature thermostat can have some specific if not negligible negative effects. The negative effects of a lower stat might possibly include higher emissions, the possibility for increased cylinder wear, and the possibility for more frequent oil changes. Oil needs to reach a certain temp to burn off unwanted contaminants in the oil system. Engines need to reach a certain temp to allow all the proper clearances for lubrication and to allow the most energy efficient operation. And exhausts also need to reach a certain temp to burn off contaminants. Whether or not these negative effects really exist in a meaningful way with only a 20 degree drop, I do not know, I'm talking more theoretically then specifically to the supercharged cruiser.
After much thought I still use the stock thermostat and i have never had anything close to hot operating temperatures. The highest temp my rig has ever had was 96 celsius and that was when we were working it ridiculously hard for several minutes straight. Now, it is pretty well proven that turbocharged 1FZFE's run cooler than supercharged ones. With that in mind, I would wonder whether the trd thermostat was designed specifically to supplement the cooling system of supercharged 1FZFE's? Dan and Junk and some others here would know but I think its safe to say that a well maintained, well working stock cooling system should be able to handle the extra cooling requirements of the supercharger and that it is absolutely able to handle the extra cooling requirements of the turbo. I think its also safe to say that if your rig is running hot, you need to look first at the root cause (headgasket, viscous fan mechanism, water pump, etc).
I hope this does not start another angry argument on turbo vs. charger, like I wrote, much of what I wrote here is the theory to lower temp thermostats and not necessarily the specifics of one on a supercharged cruiser. Still, consider all these things as you consider a lower temp trd thermostat. Hope that helps.
turbocruiser said:
Well I for one think that was well put. To my knowledge there is nothing inherent to a blown 80 that should induce overheating, all things being equal in terms of proper maintenance and fluid levels. Like turbocruiser said, if you are experiencing overheating, I would look for the sickness rather than try and treat the symptoms.
I was wondering if any of you blokes have tried a product like "water wetter" in your coolant? I know in motorcycles we used to use it and it supposidly brought coolant temps down dramatically.
concretejungle said:
Im not sure what a "bloke" is...but I use WW but did not notice a big change in water temps over running without it. But I like Redline products and I will use it again.
Does TRD also make a 170 degree T-stat.
concretejungle said:
I use RedLine's watter wetter too, did not notice any drop in normal operating temperatures at all. I rely on it mostly for making the temperature penetration into each individual component occur more evenly with less hot spots while running and less hot spots while off and cooling down. I think this effect is pretty well proven. HTH.
turbocruiser said:
I've used it in the Tacoma with the same thoughts. I have a 170 in the Taco and I've noticed the water temp in consistantly in the low 180-183. Others have seen this as well. I also have a 170 in the LC but I haven't paid attention to the temps for a #. I will look at that this eve with both a laser temp gun and my OBDII reader and compare.
