chazuk Posted July 26, 2012 Share Posted July 26, 2012 I love the look of the stock bonnet but in this heat and once Ive done some hard pulls its seriously cooking under there , I sold my vented bonnet before getting the car sprayed but I am seriously thinking about a top secret style or abflug bonnet , or another stock one but vented can anyone tell me am I ; worrying to much about the heat it will be fine , fitting a vented bonnet could make matters worse as to air flow design I use the stock viscous setup , what is the best bonnet for cooling has anyone done any before and after under bonnet temps using vented and stock ?. Quote Link to comment Share on other sites More sharing options...
Wez Posted July 26, 2012 Share Posted July 26, 2012 Whifbitz bonnet is nice Quote Link to comment Share on other sites More sharing options...
Nic Posted July 26, 2012 Share Posted July 26, 2012 My single in 40C temps was fine with the stock bonnet. Quote Link to comment Share on other sites More sharing options...
sdistc Posted July 26, 2012 Share Posted July 26, 2012 As Nic, I have driven mine in the Australian summer without issues with excess heat. Perhaps you should be looking at other ways to control the engine bay heat - turbo beanie, exhaust coating or wrap, water/meth injection? Quote Link to comment Share on other sites More sharing options...
chazuk Posted July 26, 2012 Author Share Posted July 26, 2012 Whifbitz bonnet is nice Not seen that will have a look for it My single in 40C temps was fine with the stock bonnet. Was thinking most of the yanks have stock hoods too maybe I worry to much Quote Link to comment Share on other sites More sharing options...
sdistc Posted July 26, 2012 Share Posted July 26, 2012 Was thinking most of the yanks have stock hoods too maybe I worry to much What are your coolant and oil temperatures peaking at? Quote Link to comment Share on other sites More sharing options...
Nic Posted July 26, 2012 Share Posted July 26, 2012 A poor quality, worn or blocked radiator can cause high coolant temps in hot weather, I had to replace my Fluidyne rad as it couldn't cope, the replacement Power Enterprise radiator significantly reduced coolant temps. Quote Link to comment Share on other sites More sharing options...
chazuk Posted July 26, 2012 Author Share Posted July 26, 2012 What are your coolant and oil temperatures peaking at? Peak oil is around 108 and water about 102 Quote Link to comment Share on other sites More sharing options...
chazuk Posted July 26, 2012 Author Share Posted July 26, 2012 A poor quality, worn or blocked radiator can cause high coolant temps in hot weather, I had to replace my Fluidyne rad as it couldn't cope, the replacement Power Enterprise radiator significantly reduced coolant temps. I am suprised mate thought Fluidyne were meant to be pretty good . I am thinking about in the winter when I get time moving my oil cooler to the side vent duct it etc as at the moment its inbetween rad and intercooler Quote Link to comment Share on other sites More sharing options...
Nic Posted July 26, 2012 Share Posted July 26, 2012 I am suprised mate thought Fluidyne were meant to be pretty good . I am thinking about in the winter when I get time moving my oil cooler to the side vent duct it etc as at the moment its inbetween rad and intercooler Never rated the Fluidyne, it was a poor fit and come the hot weather temps started to get a little high, the Power Enterprise rad is much better quality, uses a much thicker core and coolant temps were quite a bit lower, they're not cheap though. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted July 26, 2012 Share Posted July 26, 2012 My fluidine blew after a few years too Quote Link to comment Share on other sites More sharing options...
sdistc Posted July 26, 2012 Share Posted July 26, 2012 Peak oil is around 108 and water about 102 Coolant seems a bit hot. From what I was told for mine, and recently when talking to LeeP, over 100 is starting to get too hot, and 110 is definitely too hot. Quote Link to comment Share on other sites More sharing options...
Nic Posted July 26, 2012 Share Posted July 26, 2012 Coolant seems a bit hot. From what I was told for mine, and recently when talking to LeeP, over 100 is starting to get too hot, and 110 is definitely too hot. Agreed, mine was running around 110C on hot days with the Fluidyne rad, temps dropped to below 90C once the PE rad was fitted. Quote Link to comment Share on other sites More sharing options...
Noz Posted July 26, 2012 Share Posted July 26, 2012 I've a vented bonnet. I always look at stock bonnets and wonder did I make the right choice. I spose as men we do that with women also. Thing to learn here, vented bonnet's have holes, these holes cause problems and corrosion through the winter months without proper covers (never seen many fibreglass bonnets come with these or carbon thinking of it), do you really need the hassle. The right setup has never required holes in the bonnet, headlights or even bumper or cold air feed. If it's a toss up, I'd stay stock bonnet. Quote Link to comment Share on other sites More sharing options...
chazuk Posted July 27, 2012 Author Share Posted July 27, 2012 Coolant seems a bit hot. From what I was told for mine, and recently when talking to LeeP, over 100 is starting to get too hot, and 110 is definitely too hot. That was peak I think on the move it was 90-94 , what rad are you using and are you on fans or stock viscous ? Agreed, mine was running around 110C on hot days with the Fluidyne rad, temps dropped to below 90C once the PE rad was fitted. How much was the PE rad mate out of interest ? I've a vented bonnet. I always look at stock bonnets and wonder did I make the right choice. I spose as men we do that with women also. Thing to learn here, vented bonnet's have holes, these holes cause problems and corrosion through the winter months without proper covers (never seen many fibreglass bonnets come with these or carbon thinking of it), do you really need the hassle. The right setup has never required holes in the bonnet, headlights or even bumper or cold air feed. If it's a toss up, I'd stay stock bonnet. Yea that's why I stuck with stock bonnet , think I am going to have a move around think I read somewhere cooler oil temp cooler the water so defiantly should get that oil cooler moved , and maybe go with twin electric fans and ditch the stock viscous Quote Link to comment Share on other sites More sharing options...
Nic Posted July 27, 2012 Share Posted July 27, 2012 How much was the PE rad mate out of interest ? http://power-enterprise.co.jp/english/radiator/radiator.htm Quote Link to comment Share on other sites More sharing options...
sdistc Posted July 27, 2012 Share Posted July 27, 2012 That was peak I think on the move it was 90-94 , what rad are you using and are you on fans or stock viscous ? I have a PWR radiator, and twin electric fans (although only one is hooked up!). For what it's worth, the reason my workshop recommended the electric fans was due to the potentially worn-out clutch fan. Otherwise, it pushes PLENTY of air, and is sufficient for all but the most dedicate drag cars. Quote Link to comment Share on other sites More sharing options...
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