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You can't go too far with washers, I spaced the bonnet on my 32 with 10mm steel spacers that I had my fitter mate make up (needed to get longer bolts too.. I just went to a local fastener place) and it opens fine.. although it is a little springloaded due to touching the timing belt cover :)

hmmm do i have to undo the fender ? since like the nuts that hold the bonnet thingy is under the fender well half way under the fender :) hmmm and would i also have to get longer bolts?

Cheers

Chi

Ha ha, it already says in this thread that you need longer bolts. Anyways just try it and see if your temps are lower. Worth a go. Post up any results if you do it, would be interesting to know how well it works.

Well took these pics just then.

Probably used about 20 washers, 2 longer bolts for the rear with 2 washers so that the end of the bolt wont hit the bonnet denting it.

I dont think this makes much of a difference in cooling down the engine bay. unsure if heat even escapes from there as there is a seal between bonnet and that plastic panel.

img0307hv7.th.jpg

img0305yk4.th.jpg

i read from the force inductions forum that like apparently it does lower the temps cause the air escapes easier or something...i also saw the Just Jap R31 drift car with its bonnet raised real high too :) hmmm ill givet his a go tomorow hahah soooo wheres a place i can find some bolts that are a bit longer ?

Cheers

Chi

Could try, bunnings, repco, autoone, supercheap (apparently having up to 60% off tomorrow), autopro.

Hmm depends how high you want i guess.. well i raised mine and had troubles with the bonnet latch, so i had to put spacers (1cm nuts) behind the raidator support where those two 12mm bolts are.

I got my bolts from a Fastener mob in Welshpool, pulled up, popped my bonnet, removed one bolt, went inside and asked for something to match but 10mm longer.

I had started out with washers but when I wanted to bump it up to 10mm I had my mate make up a couple of 25x10FB spacers with appropriate holes, if I could find my camera!! I'd take some photos :)

I doubt it.

Go Rally car style and cut a giant hole in your bonnet then some thermo fans on the front of your radiator and duct it through. Now THAT will have some cooling effect. But Effort++

What's the main reason for wanting to cool under bonnet temperatures anyway dude?

yeah i think im going to get a Z-tune style bonnet lunjiaow :banana: but for a temporary fix ill just do teh washer :blush: hahah, yeah strich9 the main reason i want to cool my car down is that yesterday i went to the car wash doing normal driving and i hit like 90 degrees....max 94 degrees...so i was abit like WTF...hence why i want to do something to cool it down :) mmm i think ill get some thermo's and a Ztune bonnet perhaps that'd work good :) cheers for the help aye guys :)

Cheers

Chi

I did it for clearance.. RB30 and all :banana:

My engine temps never really get high except when you're doing burnouts in 43deg.. got to the top of the gauge twice today and a short trip down the road cooled her down again. I didn't lose a drop of coolant either while my mates xr8 emptied all of its coolant! stupid australian cars can't handle a burnout in australian conditions!

Also, I wouldn't have noticed any drop in water temps after raising the bonnet as it always sits at whatever the thermostat opens at.

I will however remove the rubber strip at the back and report back as to whether that + 10mm raise decreases under bonnet temps :blush:

Edited by bubba

hmmm so whats the max amount of washers or max MM i can go b4 i can't close my bonnet at all cause tomorow im going to go buy the stuff and rip that rear rubber seal off and see if it lowers temp :banana:

Cheers

Chi

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