Got to get a chiller!
Discussion
My car is normally brilliant with intake temps only reaching 120 degF at WOT @ 60 degF ambient. Tonight however it really struggled with 120 degF whilst cruising @ 30 degF ambient. Underneath the bonnet was like an oven when I stopped and when I put my foot down it felt slow and s
tty. In my mind's eye I could see Ringham nodding and stroking his chin in a "N/A (see what I did there?) would be more efficient you fool!" kind of way.
Why do these things get so hot under the bonnet? Don't want to cut the bonnet so a chiller is definitely on the cards. Mark's getting one soon I think?
tty. In my mind's eye I could see Ringham nodding and stroking his chin in a "N/A (see what I did there?) would be more efficient you fool!" kind of way.Why do these things get so hot under the bonnet? Don't want to cut the bonnet so a chiller is definitely on the cards. Mark's getting one soon I think?
Yes, it's all fine. Just making an observation of how a few extra degrees ambient has an exponential affect on AITs which in turn pulls loads of timing and ruins performance. It is the hottest day of the year and I'm running 14psi so not unexpected.
I fancy 70 deg IATs all year round.
I fancy 70 deg IATs all year round.
Edited by anonymous-user on Friday 18th July 20:08
My fans are on most of the time but I guess one of the by products of power, derived from burning more fuel/air is extra heat. I might get my headers plasma coated by Zircotec to see if that makes a difference. I think Mark is getting this done at the same time as as the chiller.
"demonstrated to reduce general underbonnet temperatures by up to 50oC (122oF)" apparently...
Mark, why not start a thread? I'm interested to see how this turns out.
"demonstrated to reduce general underbonnet temperatures by up to 50oC (122oF)" apparently...
Mark, why not start a thread? I'm interested to see how this turns out.
Edited by anonymous-user on Sunday 20th July 12:08
stevieturbo said:
I assume you're driving normally most of the time ? ie the engine isnt making or using any more power than another vehicle at those times.
Then no real reason for the fans to be on excessively. But again comes down to stat, fan turn on/off temps etc
As long as it isnt overheating, or running hotter than normal, then wouldnt worry too much about it.
But if they're on all the time, might be worth having things checked.
Yes, come to think about it fans are set to run a little longer than standard. Water temp sits around 192 deg F which is pretty normal. Blower suffers from heat soak, especially in traffic but that's just a fact of life. From the videos I've seen, the chiller will get IATs down to about 75 deg F which sounds perfect.Then no real reason for the fans to be on excessively. But again comes down to stat, fan turn on/off temps etc
As long as it isnt overheating, or running hotter than normal, then wouldnt worry too much about it.
But if they're on all the time, might be worth having things checked.
stevieturbo said:
Given the chargeheater fitted to the car...may as well chuck a 71deg stat in it over the summer. ( That's 160degF for Americans )
That'd immediately lose you 19degC both in engine temp, and also heat transferred to the water in your cooler
Neither of which can be a bad thing, and costwise...is virtually nothing.
I thought these engines were designed to run between 190 - 200 deg F to be at their most efficient? Any lower would surely increase fuel consumption and aren't oils designed to work within the same range? I would be concerned about contamination as condensation would not be burned out of the oil at lower temperatures.That'd immediately lose you 19degC both in engine temp, and also heat transferred to the water in your cooler
Neither of which can be a bad thing, and costwise...is virtually nothing.
I'd much rather think of a way to keep the blower cooler on hot days.
RichieSlow said:
The bit I'm struggling with is the suggestion that the engine won't get any hotter once the stat has opened. If you expand the principle you could argue that a car with the stat removed wouldn't heat up at all.
Maybe I'm slow in more ways than one but I'm just not grasping the concept.
Rich has often suggested that we need to ask more searching questions, study the evidence, then dig even deeper. I'm still looking for evidence.
+1 I don't get it either. When I was growing up the thermostat was there to help the engine warm up on cold mornings. Once up to temp it stayed open.Maybe I'm slow in more ways than one but I'm just not grasping the concept.
Rich has often suggested that we need to ask more searching questions, study the evidence, then dig even deeper. I'm still looking for evidence.
Gassing Station | HSV & Monaro | Top of Page | What's New | My Stuff