engine bay heat

[coolsurfer13]

Hi guys what are your thoughts on using heat wrap on the exhaust manifolds? V8 can run quite hot especially modified ones. Did this to reduce heat in another car. reduced the heat quite a bit would also think it helps with performance?

[007 VXR]

Just had mine coated, made a big diffrence

[coolsurfer13]

Coated ? With what if U don't mind me asking

[007 VXR]

coolsurfer13 said:

Coated ? With what if U don't mind me asking

Paint. Done by these guys ...

http://www.zircotec.com/page/contact_us/4

[Behold81]

Do you still get stainless cracking used by this?? How much did you pay?

[007 VXR]

Behold81 said:

Do you still get stainless cracking used by this?? How much did you pay?

Not that i have heard. Cost was £1076.00

[jameshsv]

OR get some nice bonnet vents fitted.

[stigmundfreud]

jameshsv said:

OR get some nice bonnet vents fitted.

doesn't that let water get into the engine bay though? Not a problem if you never go out in the wet or have a garage but surely not ideal in our weather?

[jameshsv]

stigmundfreud said:

doesn't that let water get into the engine bay though? Not a problem if you never go out in the wet or have a garage but surely not ideal in our weather?

No problem with mine.Water still gets into engine bay when it rains.

[007 VXR]

jameshsv said:

stigmundfreud said:

doesn't that let water get into the engine bay though? Not a problem if you never go out in the wet or have a garage but surely not ideal in our weather?

No problem with mine.Water still gets into engine bay when it rains.

Same here, have them fitted too

[MadMaxHSV]

jameshsv said:

No problem with mine.Water still gets into engine bay when it rains.

Isn't that statement contradictory?
Assume you don't mind stuff getting wet under the hood?

[Gary H 2008]

007 VXR said:

jameshsv said:

stigmundfreud said:

doesn't that let water get into the engine bay though? Not a problem if you never go out in the wet or have a garage but surely not ideal in our weather?

No problem with mine.Water still gets into engine bay when it rains.

Same here, have them fitted too

Little girly vents don't count

[007 VXR]

Gary H 2008 said:

Little girly vents don't count

[swiftstuff]

MadMaxHSV said:

Isn't that statement contradictory?
Assume you don't mind stuff getting wet under the hood?

I would imagine JamesHSV means you still get rainwater in the engine bay whether you have bonnet vents or not...

Having just fitted Wortec headers to my Monaro, I too have noticed the increase in engine bay temps, and was considering fitting bonnet louvres to draw away some of the hot air. However, I was also pondering whether it would be worthwhile opening up the nostrils on the bonnet in conjunction with louvres to increase the air flow (ie cold air in through the nostrils and hot air out through the vents)

Anyone got any views on whether this would be advisable?

[007 VXR]

swiftstuff said:

I would imagine JamesHSV means you still get rainwater in the engine bay whether you have bonnet vents or not...

Having just fitted Wortec headers to my Monaro, I too have noticed the increase in engine bay temps, and was considering fitting bonnet louvres to draw away some of the hot air. However, I was also pondering whether it would be worthwhile opening up the nostrils on the bonnet in conjunction with louvres to increase the air flow (ie cold air in through the nostrils and hot air out through the vents)

Anyone got any views on whether this would be advisable?

Not a good idea.

[MadMaxHSV]

swiftstuff said:

I would imagine JamesHSV means you still get rainwater in the engine bay whether you have bonnet vents or not...

Not when stationary/parked unless you've removed your weather strips.

swiftstuff said:

However, I was also pondering whether it would be worthwhile opening up the nostrils on the bonnet in conjunction with louvres to increase the air flow (ie cold air in through the nostrils and hot air out through the vents)

Anyone got any views on whether this would be advisable?

No, as this can cause positive air pressure in the engine bay reducing air flow through the radiator etc.
rear facing vents at the rear are ideal as they can help draw air out.

[jameshsv]

Gary H 2008 said:

Little girly vents don't count

Every little helps m8.You must get bucket loads of water into your engine bay or is it fair weather car only.

[ARAF]

jameshsv said:

Gary H 2008 said:

Little girly vents don't count

Every little helps m8.You must get bucket loads of water into your engine bay or is it fair weather car only.

I really don't see why people have an issue with water hitting the engine. What happens when you drive through a puddle?

[ringram]

water isnt likely to sit on top of the engine though, just spray which will evaporate. Sitting in the driveway with holes in the bonnet in the rain is not a normal means of water ingress. Sitting water isnt going to be good for it IMO. Wiring wont like immersion even if the weatherpack connectors are pretty good.

[jameshsv]

ringram said:

water isnt likely to sit on top of the engine though, just spray which will evaporate. Sitting in the driveway with holes in the bonnet in the rain is not a normal means of water ingress. Sitting water isnt going to be good for it IMO. Wiring wont like immersion even if the weatherpack connectors are pretty good.

True so we will see long term