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| xhute92 |
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any one seen or used these manifold insulators there ment to reduce heat soak.... or are they just a money grab
http://www.ebay.com.au/itm/COLD-AIR-INT ... 5d2f83f839 http://www.ebay.com.au/itm/MANIFOLD-INS ... 3a681752ad |
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| bry40l |
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looks like s**t unlesss some one can PROVE otherwise
_________________ BF XR6 |
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| fiftyone |
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I would think the power curve being shifted like that would be from a slightly longer runner length, making it feel like there's some more bottom end in the pull. Bottom line is that the manifold will get hot with heat soak anyway.
If you were gunning for low end power (eg, with cam & extractor mods) i'd say it would be worth it
_________________ ** For Sale ** http://www.fordmods.com/ford-parts-for-sale-f17/assorted-e-series-parts-t124697.html |
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| low_ryda |
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This is an old trick for you new players. It's been done, I think fiend had one made up and tested it to some degree.
some searching should turn up some old discussions. To answer you're question I think they are a bit of a money grab, but when every bit counts I guess they would add up. Just need to be cheaper.
_________________ Not to get technical, but according to chemistry alcohol is a solution. |
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| alexxx |
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i was rooting through ford forums on thursday looking for info about electric water pumps and on a post they were talking about these http://www.fordforums.com.au/showthread.php?t=11197224 basically the guy tht fitted them to his ba said there was some bottom end due to it spacing out the manifold not insulating as such. hope this might help abit
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| fitz |
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I used one for my LPG injection setup. I drilled and tapped the nipples into it for each cylinder much like the petrol injectors.
It was for convenience rather than drilling into the cast intake runners. I was told it would work better injecting it as close to the head as possible. It did actually help slow down the heat transfer from the head really well, but on long drives the air temp in the bay soaks in eventually. |
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| xhute92 |
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yeah i would think that over a period of time the radiant heat of the engine would heat it up and the increase length should improve bottom end, would be perfect for lpg injectors.
has anyone played around with either type of these its stupid that they show a dyno result of vs commodore when its ment for ford haha |
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
http://www.ebay.com.au/itm/COLD-AIR-INT ... 5d2f83f839
Those guys are right floggers. When fiend was mucking around with the idea, they some how found out, then registered on the site FM and threatened Fiend with legal action. At the time Mace didn't offer one for the falcon that fitted between the head and manifold (like the one fiend was doing), they only had one that fitted between the two halfs of the BBM. About 3 weeks later they made their first listing on ebay for the newer design one. We all basicly told him to piss off, and he hasn't posted since. But just for hmi being a tosser I wouldn't spend any money with him. |
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| xhute92 |
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hahaha far out
im tempted to get one but id rather spend me cash on somthin that has a reputation, and that i should have a gain from |
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| keegzXR |
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has anyone had any difference with them in with just head work and noticed anything?
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| efxr6wagon |
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It's not voodoo. The concept is pretty well tested and accepted, having been commonly used on V8s since the 60s at least. Carter actually made a 4-barrel carburetor (Thermoquad) completely of phenolic resin - used on Mopar muscle cars in the 60s and 70s.
The insulator won't stop the radiant heat getting into the manifold, but it should drastically reduce the conductive heat transferring from the head. Ford 6 cylinder intake manifold gaskets are reasonably thick and the material isn't highly conductive anyway, so the benefit of a phenolic spacer would be limited. It's probably one of those hundred "little things" we do to squeeze out a bit more power that put together make a significant difference. I wouldn't be counting on a big increase - maybe a few kws, but nothing you could feel. And a little extra runner length will improve the bottom end ever so slightly. The theory's sound; but does the benefit exceed the cost for you?
_________________ 95 EF XR6 wagon, 17" FTRs, DBA rotors, KYB/Koni, AU bottom end, ported EF head, backcut valves, SS Inductions, Territory intake, 10.2 CR, Auckland 1258 cam, vernier gear, PH4480 headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip |
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| Jonathan Kakousidis |
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if i was worried about heat in the engine bay affecting the intake i would have my bbm coated in cermic like you do with your headers.
_________________ MY BABIES |
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| GeZza200 |
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I have one, it SeeSawed the power.
Bottom-mid gained a little bit, but mid-top end power lost out. I wouldn't get one they are not worth it. I am taking mine off soon as the destroy the throttle cable rubber support and im looking for mid to top end power.
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| DRHEMI |
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GeZza200 wrote: I have one, it SeeSawed the power. Bottom-mid gained a little bit, but mid-top end power lost out. I wouldn't get one they are not worth it. I am taking mine off soon as the destroy the throttle cable rubber support and im looking for mid to top end power. Finally some one has actually tested it - already knew this anyway for NA 6cyl lol Manifold Insulators increase the runner length - the runners on the BBM are too long even when the BBM is switched to the short runners Long Runners - Less Top End - More Bottem End Shorter Runners - More Top End - Less Bottem End This is why from factory the BBM switches from long runners to short runners at 3500+ for max performance
_________________ PROEF 13.46 @ 105.78mph - 1994 Ford Fairmont EF NA 6cyl Man 3.9 diff Sedan |
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| fitz |
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If anyone is interested I have a used one that goes between the upper and lower halves off the BBM.
I sealed it with epoxy resin before fitting so it's still in good condition. Just got a bit of residual silicone on it but still flat and smooth. PM me if you want to make an offer. |
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