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hot intake manifold 

 

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 Post subject: hot intake manifold
Posted: Sat Jan 28, 2012 12:22 am 
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i tried doing a few searches to see if this has been covered before but couldn't find a definitive answer, so here goes.

i'm still a bit new to mods but was trying to come up with different ideas for an intake when i found after long drive the intake manifold was fairly hot...and as such is it marginally heating up the air coming into the engine?!

so my query, is it feasible to perhaps heat shield the intake manifold to keep incoming air temps down?

i was thinking of perhaps heat shielding paint (mainly coz i'm on a tight budget and ceramic coating is costly). :D

 

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 12:46 am 
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I put an insulating spacer between my manifold and head:
Image

It does work well. After longer drives I noticed the manifold was almost the same temperature as the head.. AKA I couldn't touch it lol. But after adding this it has never got beyond where I can't touch it. I don't see much point with a heatshield, you aren't shielding it from anything. You could add some air vents to the bonnet to allow hot engine bay air to escape, and as you said, heat shield paint / ceramic coating.

 

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 10:37 am 
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cheers tyler, i never would have thought about an insulating spacer...what is it made from? did u make it urself?

 

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 7:59 pm 
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http://www.ebay.com.au/itm/Mace-Enginee ... 500wt_1413

You can ask fiend if he has any as well. But this one is at a good price.

 

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 9:02 pm 
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those spacers also lenghen the runners giving better bottom end, but effecting the top end by not being as short
heat shielding would be pointless, just get a phonelic spacer, and ceremic coat the intake manifold or vents in the bonnet

 

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xr8 snorkel,typhoon lower snorkel,territory intake pipe,20% underdrive kit,pacemaker extractors,high flow cat,xforce exhaust,t56 conversion hd turbo clutch/ flywheel,m86 3.45 lsd,custom tune187.1rwkw as an auto

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 9:13 pm 
Getting Side Ways
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are you my parrot bry? :lol: xD

 

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 9:17 pm 
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TyLeR3397 wrote:
are you my parrot bry? :lol: xD

lol, just backing up what you wrote.

 

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xr8 snorkel,typhoon lower snorkel,territory intake pipe,20% underdrive kit,pacemaker extractors,high flow cat,xforce exhaust,t56 conversion hd turbo clutch/ flywheel,m86 3.45 lsd,custom tune187.1rwkw as an auto

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 Post subject: Re: hot intake manifold
Posted: Sat Jan 28, 2012 9:29 pm 
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for the old school guys these spacers can also be a good thing under a carby too....

 

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 Post subject: Re: hot intake manifold
Posted: Sun Jan 29, 2012 8:02 pm 
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Fiend hooked me up....
Haven't had a hot manifold since, A1 effort complete with mushroom decal ;)
Only worry about the injecter spray pattern; but I shouldn't, only a slight movement (10mm) could possibly be corrected but there's no fecking point... It's fine. :)
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