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GQ UNDERBONNET HEAT

Posted: Mon Dec 15, 2003 2:12 pm
by Red Rover
The TB42 now has extractors & FARK it gets hot. HOT DAMN HOT. I reckon a bonnet vent, but i havn't found any good ones. I thought about a gu scoop but unless i face it towards the windscreen i don't think it would work. any thoughts

Thanks in advance

Posted: Mon Dec 15, 2003 3:15 pm
by Daisy
raise rear bonnet mounts a bit??

Ive seen a few fourbys go around with that with the rear end of the bonnet being raised a bit to allow airflow to escape??

Posted: Mon Dec 15, 2003 4:34 pm
by getdirty
The raised rear bonnet is a little dodgy for my liking. In a front impact instead of the bonnet folding its more likely to shoot back into the windscreen.

A GU bonnet scoop mounted backwards work well and is an easy fit. I know of a couple who have alse fitted fans to pump out air.

Posted: Mon Dec 15, 2003 5:34 pm
by MKPatrolGuy
Also at higher speeds the back of the bonnet/base of the windscreen becomes a high pressure area and will actually push the air in rather than let it out.

Posted: Mon Dec 15, 2003 7:31 pm
by bazzle
Leave it all alone. The standard exh also gets just as hot. Headers cool quicker.

bazzle

Posted: Tue Dec 16, 2003 7:01 am
by Wendle
wrap the air-con and power steering hoses in insulating silver spaceman stuff and forget about it..

Posted: Tue Dec 16, 2003 8:27 am
by Red Rover
THe extractors were making the battery so hot it wasn't funny. Last night we oxyed three bolts to the extractors, two on top & one vertically on the side and mounted the original heat sheild. Has reduced the heat from the battery area heaps, but I will still mount the scoop to allow the hot air to escape. Obiviously it is off road crawling around it was at its worst. We came up with the fan idea last night as well, going to look into it - thanks. Good idea about wrapping the hoses up- i'll try that. I reckon it all comes down to the heat shield as the staring point.

Thankz guys

coatings

Posted: Fri Dec 19, 2003 11:49 pm
by mav
what about the coatings you can get done on extractors/exhaust, i have seen a car after running the 1/4 and the rocker covers were too hot to touch but the coated extractors wern't.