anyone herd of these gaskets which you put between inlet and head to stop the heat transfure in to the inlet? supposedly giving slightly better power (and maybe efficiency?)
i ask mainly because they are beign pushed by a chap whop is selling them on another forum, and working for a water jet cutting company i can probly make them very very cheaply, just wondering if it was worth looking in to.
polyethylene inlet gaskets
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Re: polyethylene inlet gaskets
If your manifold is water heater which most are then it won't make the slighest difference.Ralphh85 wrote:anyone herd of these gaskets which you put between inlet and head to stop the heat transfure in to the inlet? supposedly giving slightly better power (and maybe efficiency?)
i ask mainly because they are beign pushed by a chap whop is selling them on another forum, and working for a water jet cutting company i can probly make them very very cheaply, just wondering if it was worth looking in to.
I guess if it not heated then it might make a couple of BHP more!
Not sure about the material (thats what plastic bags are made from I think) or using a heat barrier between the heads and manifold on a v8. Its quite common to use a phenolic material on carb engines between the carb and manifold. I have also seen it used as a spacer/heat barrier under the plenum of a Rover injection system. The rover and other V8 engines pump the coolant through the manifold so putting a heat barrier there is virtually pointless unless you do something about re-routing the coolant flow.
Being a V unless you do some machining then it needs to be somewhere around 1-1.5mm cant remember the exact thickness or the manifold sits too high and the ports dont match. Course if your running ITB's then both the coolant and thickness problems dont count. You need to factor in how well it will seal as well. Composite inlet gaskets might well provide a similar insulation anyway and are a proven seal.
