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Old 18-10-2011   #16
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Re: having a Hot Air feed this winter

If the thermostat is working it wont make any difference and you risk it overheating in a traffic jam. If the 'stat is in doubt flush the system and fit a new stat along with some decent antifreeze..
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Old 18-10-2011   #17
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Re: having a Hot Air feed this winter

Quote Originally Posted by WhiteSei View Post
If the thermostat is working it wont make any difference and you risk it overheating in a traffic jam. If the 'stat is in doubt flush the system and fit a new stat along with some decent antifreeze..
Stat is brand new when i replace HG about 1.5months ago
refilled with a Nice Strong mix of about 50/50

As i think my old one was sticking a little bit untill engine got really warm - so slowly kept cooking the HG
But its just a thoery as the head didnt warp, so why my HG blew no1 knows - just age proberbly

Ziggy
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Old 18-10-2011   #18
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Re: having a Hot Air feed this winter

Quote Originally Posted by WhiteSei View Post
If the thermostat is working it wont make any difference and you risk it overheating in a traffic jam. If the 'stat is in doubt flush the system and fit a new stat along with some decent antifreeze..
How so?

A stat is either open or closed. If it is closed there is no flow to the radiator (or, on most cars, the heater).

Most stats open at around 87C. This is about the bare minimum for oil to operate efficiently. Ergo, the less cooling air that is available to the rad (blanking part of it off) the quicker the oil will heat up (something like 100 - 105C is optimum for the oil). This reduces engine wear and increases fuel efficiency.

Of course, there is a potential risk of overheating in traffic, which is why I say partially blank it off.

In days of yore, all the better cars had perfectly good thermostats and thermostatically controlled radiator blinds....................
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Old 18-10-2011   #19
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Re: having a Hot Air feed this winter

the problem i had is the outside temp was soo cold
When sat in traffic when it was cold - having the heaters on full blast to keep me and the car warm / clear, that my temperature gauge would start going back down
As the extreme outside is too much
I do think yes possibly blocking on Section on the Grill Style bumpers would be better
As there will be plenty of air flow - if car gets too hot the fan will kick in When sat in traffic

Ziggy
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Old 18-10-2011   #20
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Re: having a Hot Air feed this winter

I did this on one of my old cars a while back because it was seriously overcooling, tried thermostat etc but no better, so i just took the pipe off the intake of the air box so it fed from the bay and it worked great,
faster warm up better heater
Also don't forget a car runs on basically "choke" till the engine gets past a certain point so it'll eat fuel and if ran cool for long will cause possible blow by and head gasket going
So i say go for it, end of the day we were dealing with -22 at one point and show me a car that will over heat in that kinda temp.

Tell you what also works like a treat, a K&N induction kit, sit's straight onto the throttle body and pulls lovely warm air in, don't sound too bad either.
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Old 20-10-2011   #21
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Re: having a Hot Air feed this winter

I blanked it off on the Coupe when the thermostat was stuck open . Until I replaced the stat ofcourse .
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Old 20-10-2011   #22
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Re: having a Hot Air feed this winter

I have my ford focus induction kit that sits across the engine and is right next to the manifold/radiator.

Doesnt really make a difference to what you said. Takes a good 5 mins to warm up fully before my heaters get nice and toasty and by that time ive drove back home from my girlfriends divering..


Would sticking my old airbox back on help me save fuel for the winter? Would it also make a performance drop as i would of thought the placing of mine could reduce performance anyway!

Picture of my layout:



Verdict?

Alec
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Old 20-10-2011   #23
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Re: having a Hot Air feed this winter

your near the manifold but depending on your bumper style it'll be warm as it has a hot and cold feed

Im going to unclip the induction pipe off my stock airbox so that its more like to suck it warm air up better

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Old 20-10-2011   #24
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Re: having a Hot Air feed this winter

I have the sporting bumper



Would the slits on the front have any effect on the cool air feed.

Would you say my layout is better for the winter?
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Old 20-10-2011   #25
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Re: having a Hot Air feed this winter

Get a paint stripper heat gun and see how long it takes to warm up the engine.. a long time.

Far better idea is to insulate the engine, then it wont get as cold to start with and warm up quicker, then warm engine + cold air ideal?
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Old 20-10-2011   #26
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Re: having a Hot Air feed this winter

no real way to tell how well it would work without been a dyno/RR

Sealing one section on a sporting bumper would help

Ziggy
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