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17 Apr 2008, 11:38 (Ref:2179724)
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Veteran
Join Date: Oct 2001
Posts: 1,168
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Intake Manifold Heat Barrier Gasket?
Just wondering if anyone knows of a heat barrier material that is widely available and that will work as a gasket between the head and the intake manifold. It seems that the heat from the head is causing the aluminium manifold to heat up quite significantly and affect power. Steel manifolds work OK... the problem only arises with aluminium ones!
As ever... thanks for any replies. |
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__________________
Growing old is mandatory. Growing up is optional. 
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17 Apr 2008, 12:03 (Ref:2179758)
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Racer
Join Date: Feb 2005
Posts: 162
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Most plastics will work but the best one is probably Tufnol as it has a very low thermal conductivity. As with any insulator, the thicker you make it the better it will insulate.
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17 Apr 2008, 12:11 (Ref:2179763)
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#3 | |
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Tea Addict And Summoner Of Safety Cars
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Join Date: Jan 2008
Posts: 1,243
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__________________
There are few hours in life more agreeable than the hour dedicated to the ceremony known as afternoon tea.
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17 Apr 2008, 12:27 (Ref:2179773)
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Veteran
Join Date: Oct 2001
Posts: 1,168
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Quote:
Any chance that you might point a silly boy in the right direction? It seems it can be machined using ordinary metal working materials too? Peter, your link seems to be good as a heat shield... but probably wouldn't work great between the head and manifold? If I'm wrong... or if there are other types of that material... please do let me know. Many Thanks Last edited by av8rirl; 17 Apr 2008 at 12:30. |
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__________________
Growing old is mandatory. Growing up is optional.
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17 Apr 2008, 12:40 (Ref:2179782)
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Racer
Join Date: Feb 2005
Posts: 162
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I think the different grades are to do with the type of reinforcing material woven / impregnated into it. I think 'Kite' is the most common type and from memory 'whale' has glass fibre reinforcing. Overall I think any type would work for your job.
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17 Apr 2008, 12:57 (Ref:2179808)
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#6 | ||
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Veteran
Join Date: Nov 2006
Posts: 9,412
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When I was running a pre crossflow engine I actually used an air line to blow cool air onto the inlet manifold when it was on the dyno. This soon showed that the heat build up was robbing power. It was difficult to make a tufnol type of "sandwich" as its very thin between the ports on that particular type of head. One pretty successful idea I came up with was to run flexible heater tubing from the front grill to the manifold tubes. This kept the power constant throughout the race. Eventually we made a compete inlet manifold with this all built in. Although this took a bit of time it was worth it in the end.
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__________________
Balls of steel (knob of butter) They're Asking For Larkins. ( Proper beer) not you're Eurofizz crap. Hace más calor en España. Me han conocido a hablar un montón cojones! Send any cheques and cash to PO box 1 Lagos Nigeria Africa !
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17 Apr 2008, 12:57 (Ref:2179811)
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#7 | ||
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Veteran
Join Date: Aug 2004
Posts: 14,699
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There has been and watch my spelling, a phenolic gasket available for 4 barrell Holly carbs for years and is an old racers trick. I have one in the garage myself but could not get enough hood clearance as its about 12mm thick so could'nt use is.
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__________________
You can't polish a turd but you sure can sprinkle it with glitter!
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17 Apr 2008, 17:15 (Ref:2179982)
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#8 | ||
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Veteran
Join Date: Jan 2003
Posts: 2,071
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talk to mike tanski at ferriday engineering, he as well as special headgaskets he makes insulating gaskets, and wil do one offs to suit any application
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__________________
AKA Guru its not speed thats dangerous, just the sudden lack of it!
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17 Apr 2008, 17:33 (Ref:2179994)
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#9 | ||
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Veteran
Join Date: Aug 2006
Posts: 1,276
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me too , we can make them in any material that takes your fancy tufnol delrin/acetal, klinger ,all sorts realy at bd marine.
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__________________
WOODY
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17 Apr 2008, 23:09 (Ref:2180265)
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#10 | ||
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Veteran
Join Date: Oct 2001
Posts: 1,168
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As per usual... when the info is needed... you lads here come up trumps!
Thanks again... I'll make a few phonecalls tomorrow! |
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__________________
Growing old is mandatory. Growing up is optional.
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